Patent application number | Description | Published |
20100326167 | PAYOUT-GLIDE-FLAKEOFF APPARATUS FOR CHARACTERIZING DEODORANT AND ANTIPERSPIRANT STICKS - An apparatus and system for characterizing and quantifying certain attributes of antiperspirants and deodorants is provided, such as payout, friction, and flakeoff. The apparatus is capable of reproducibly applying antiperspirants and deodorant to a substrate. | 12-30-2010 |
20110076309 | Antiperspirant/Deodorant Composition - A composition in which the volatile silicone is partially or fully replaced by a plant oil. The plant oil containing composition is parity or better than the volatile silicone containing material but at lower cost. One example comprises a mixing product of at least one material chosen from antiperspirant actives and deodorant actives; greater than 10 weight % of a plant oil: and less than 40 weight % of a volatile silicone oil. Another examples comprises a mixing product of greater than 10 weight % of a plant oil; a gellant for the composition; and less than 40 weight % of a volatile silicone oil, wherein the composition does not contain an antiperspirant active or deodorant active. | 03-31-2011 |
20110076310 | Antiperspirant/Deodorant Composition - A composition that is gelled with a high level of fatty acid. A composition comprising at least one active chosen from an antiperspirant active and a deodorant active: a fatty acid in an amount of greater than 7 weight %; and a plant oil in an amount of at least 12 weight %. A composition comprising greater than 7 weight % of a fatty acid: and at least 12 weight % of a plant oil, wherein the composition does not contain an antiperspirant active or a deodorant active. | 03-31-2011 |
20130255710 | Liquid Cleaning Composition Containing Long-Chain Fatty Acid - An aqueous composition includes: (a) surfactants comprising a salt of a C | 10-03-2013 |
20130261037 | Liquid Cleaning Compositions Containing Long-Chain Fatty Alcohols - A composition comprising a) a surfactant comprising an anionic surfactant; b) at least 8 weight % of the composition of a C12-18 fatty alcohol, and c) water. A cleansing method includes applying the composition to skin or hair and washing, and optionally rinsing with water. | 10-03-2013 |
20150272856 | Cleansing Composition with an Alkoxylated Alkyl Ether - A liquid cleansing composition comprising a cleansing effective amount of surfactant and an alkoxylated alkyl ether having 5 to 20 alkoxy moieties and a C | 10-01-2015 |
20150290111 | Antiperspirant/Deodorant with Alkylated Polyvinylpyrrolidone - An antiperspirant/deodorant liquid composition comprising a solvent, an antiperspirant and/or deodorant ingredient, a fragrance, and an alkylated polyvinylpyrrolidone, wherein the alkylated polyvinylpyrrolidone is soluble or dispersible in the composition. The alkylated polyvinylpyrrolidone is capable of forming a film when the solvent is allowed to evaporate such that the film limits the release of the fragrance. Fragrance is released when the film is exposed to perspiration. The alkylated polyvinylpyrrolidone overcomes the problem with other film forming polymers that do not form stable films in the presence of an antiperspirant and/or deodorant ingredient. | 10-15-2015 |
20150305995 | Antiperspirant/Deodorant Cosmetic Compositions - A solid or soft solid antiperspirant/deodorant composition comprising at least one antiperspirant or deodorant active, a base component in an amount of from 2% and 15% by weight of the composition, wherein the base component is C8 to C14 fatty acid in free acid form, and a gellant, wherein the gellant comprises less than 50% by weight of the gellant stearyl alcohol. The C8 to C14 fatty acid in free acid form can be lauric acid. The C8 to C14 fatty acid in free acid form provides antibacterial properties to the compositions. | 10-29-2015 |
Patent application number | Description | Published |
20130246046 | RELATION TOPIC CONSTRUCTION AND ITS APPLICATION IN SEMANTIC RELATION EXTRACTION - Systems and method automatically collect training data from manually created semantic relations, automatically extract rules from the training data to produce extracted rules, and automatically characterize existing semantic relations in the training data based on co-occurrence of the extracted rules in the existing semantic relations. Such systems and methods automatically construct semantic relation topics based on the characterization of the existing semantic relations, and group instances of the training data into the semantic relation topics to detect new semantic relations. | 09-19-2013 |
20130332478 | QUERYING AND INTEGRATING STRUCTURED AND INSTRUCTURED DATA - A computer-implemented method, system, and article of manufacture for querying and integrating structured and unstructured data. The method includes: receiving entity information that is extracted from a first set of unstructured data using an open domain information extraction system, wherein the entity information comprises relationship information between a first entity and a second entity of the first set of unstructured data; recognizing a pattern based on the relationship information and creating a schema for the first set of unstructured data based on the pattern; and associating an element of the created schema with (i) an entity of a second set of unstructured data or (ii) a schema element of an existing set of structured data if there is sufficient overall similarity between the created schema element and either the second unstructured data entity or the schema element of the existing structured data. | 12-12-2013 |
20140016814 | HIERARCHICAL AND INDEX BASED WATERMARKS REPRESENTED AS TREES - An approach that provides hierarchical and index based watermarks represented as trees is described. In one embodiment, a watermark tree is formed from feature watermarks generated from a natural language processing (NLP) stack having NLP analytics. The watermark tree represents a hierarchical relationship between each of the feature watermarks. In particular, the watermark tree defines hierarchical pointers that point out inherited watermarks that exist between the feature watermarks according to the hierarchical relationship. Further, the watermark tree includes a time stamp specifying a time that a data set content residing in a corpus was accessed. | 01-16-2014 |
20140272904 | COMBINING DIFFERENT TYPE COERCION COMPONENTS FOR DEFERRED TYPE EVALUATION - In a method of answering questions, a question is received, a question LAT is determined, and a candidate answer to the question is identified. Preliminary types for the candidate answer are determined using first components to produce the preliminary types. Each of the first components produces a preliminary type using different methods. A first type-score representing a degree of match between the preliminary type and the question LAT is produced. Each preliminary type and each first type-score is evaluated using second components. Each of the second components produces a second score based on a combination of the first type-score and a measure of degree that the preliminary type matches the question LAT. The second components use different methods to produce the second score. A final score representing a degree of confidence that the candidate answer matches the question LAT is calculated based on the second score. | 09-18-2014 |
20140365517 | QA Based on Context Aware, Real-Time Information from Mobile Devices - A common infrastructure collects data from a plurality of mobile devices and traditional sensors at Internet scale to respond to natural language queries received at different applications. The infrastructure includes a semantic interpreter to translate the natural language query to a data request specification that is processed by the data collection system. The data collection system includes a phenomenon layer that expresses data and information needs in a declarative fashion and coordinates data collection and processing for queries. An edge layer manages devices, receives collection requirements from the backend layer, configures and instructs devices for data collection, and conducts aggregation and primitive processing of data. This layer contains network edge nodes, such as base stations in a cellular network. Each node manages a set of local data generating networked devices. The device agent data layer using common agents on the networked devices receives data collection instructions and performs data collection. | 12-11-2014 |
20140365518 | QA Based on Context Aware, Real-Time Information from Mobile Devices - A common infrastructure collects data from a plurality of mobile devices and traditional sensors at Internet scale to respond to natural language queries received at different applications. The infrastructure includes a semantic interpreter to translate the natural language query to a data request specification that is processed by the data collection system. The data collection system includes a phenomenon layer that expresses data and information needs in a declarative fashion and coordinates data collection and processing for queries. An edge layer manages devices, receives collection requirements from the backend layer, configures and instructs devices for data collection, and conducts aggregation and primitive processing of data. This layer contains network edge nodes, such as base stations in a cellular network. Each node manages a set of local data generating networked devices. The device agent data layer using common agents on the networked devices receives data collection instructions and performs data collection. | 12-11-2014 |
20150254244 | CANDIDATE GENERATION IN A QUESTION ANSWERING SYSTEM - An aspect of candidate answer generation in a question answering system includes receiving at least one document or passage responsive to a search of an information source. The search is implemented based on a query formulated from a natural language query. A further aspect includes receiving provenance information for the at least one document or passage, searching a semi-structured source of information based on the provenance information, retrieving a substructure corresponding to the at least one document or passage from the semi-structured source of information, and returning the substructure as a candidate answer to the natural language query. | 09-10-2015 |
20150339299 | TYPE EVALUATION IN A QUESTION-ANSWERING SYSTEM - A system and method for automatically mapping LATs and candidate answers to multiple taxonomies without a need to merge these taxonomies. The method includes using a syntactic analysis of a corpus to extract all type instances of the LAT. The extracted instances are then mapped to a given taxonomy and clustered in a set of supertypes. Each supertype receives a score based on the coverage of LAT instances in the corpus. The method includes mapping the candidate answer to the same taxonomy to determine if the candidate answer is an instance of a significant supertype. Then the score of a candidate answer is obtained by aggregating or taking a maximum of the score of the matched significant supertypes. This score evaluates the type match between the LAT and candidate answer for a taxonomy. Multiple taxonomies can be used to increase the chance of LAT and candidate answer mapping. | 11-26-2015 |
20150370782 | RELATION EXTRACTION USING MANIFOLD MODELS - According to an aspect, relation extraction using manifold models includes identifying semantic relations to be modeled in a selected domain. Data is collected from at least one unstructured data source based on the identified semantic relations. Labeled and unlabeled data that were both generated from the collected data is received. The labeled data includes indicators of validity of the identified semantic relations in the labeled data. Training data that includes both the labeled and unlabeled data is created. A manifold model is trained based on the training data. The manifold model is applied to new data, and a semantic relation is extracted from the new data based on the applying. | 12-24-2015 |
20160086503 | COMBINING DIFFERENT TYPE COERCION COMPONENTS FOR DEFERRED TYPE EVALUATION - In a method of answering questions, a question is received, a question LAT is determined, and a candidate answer to the question is identified. Preliminary types for the candidate answer are determined using first components to produce the preliminary types. Each of the first components produces a preliminary type using different methods. A first type-score representing a degree of match between the preliminary type and the question LAT is produced. Each preliminary type and each first type-score is evaluated using second components. Each of the second components produces a second score based on a combination of the first type-score and a measure of degree that the preliminary type matches the question LAT. The second components use different methods to produce the second score. A final score representing a degree of confidence that the candidate answer matches the question LAT is calculated based on the second score. | 03-24-2016 |
Patent application number | Description | Published |
20120078902 | PROVIDING QUESTION AND ANSWERS WITH DEFERRED TYPE EVALUATION USING TEXT WITH LIMITED STRUCTURE - A system, method and computer program product for conducting questions and answers with deferred type evaluation based on any corpus of data. The method includes processing a query including waiting until a “Type” (i.e. a descriptor) is determined AND a candidate answer is provided. Then, a search is conducted to look (search) for evidence that the candidate answer has the required Lexical Answer Type (e.g., as determined by a matching function that can leverage a parser, a semantic interpreter and/or a simple pattern matcher). Prior to or during candidate answer evaluation, a process is provided for extracting and storing collections of entity-type pairs from semi-structured text documents. During QA processing and candidate answer scoring, a process is implemented to match the query LAT against the lexical type of each provided candidate answer and generate a score judging a degree of match. | 03-29-2012 |
20120330934 | PROVIDING QUESTION AND ANSWERS WITH DEFERRED TYPE EVALUATION USING TEXT WITH LIMITED STRUCTURE - A system, method and computer program product for conducting questions and answers with deferred type evaluation based on any corpus of data. The method includes processing a query including waiting until a “Type” (i.e. a descriptor) is determined AND a candidate answer is provided. Then, a search is conducted to look (search) for evidence that the candidate answer has the required Lexical Answer Type (e.g., as determined by a matching function that can leverage a parser, a semantic interpreter and/or a simple pattern matcher). Prior to or during candidate answer evaluation, a process is provided for extracting and storing collections of entity-type pairs from semi-structured text documents. During QA processing and candidate answer scoring, a process is implemented to match the query LAT against the lexical type of each provided candidate answer and generate a score judging a degree of match. | 12-27-2012 |
20140142920 | Method and apparatus for Utilizing Structural Information in Semi-Structured Documents to Generate Candidates for Question Answering Systems - An approach to candidate answer generation by leveraging structural information in semi-structured resources, such as the title of a document and anchor texts in a document. | 05-22-2014 |
Patent application number | Description | Published |
20090312345 | PHARMACOLOGICAL CHAPERONES FOR TREATING OBESITY - The invention relates to methods of enhancing normal melanocortin-4 receptor (MC4R) activity, and to enhancing activity of an MC4R having a mutation which affects protein folding and/or processing of the MC4R. The invention provides a method of treating an individual having a condition in which increased activity of an MC4R at the cell surface would be beneficial, for example in obesity, by administering an effective amount of a pharmacological chaperone for the MC4R. The invention provides MC4R pharmacological chaperones which enhance the activity of MC4R. The invention further provides a method of screening to identify pharmacological chaperones which enhance folding of an MC4R in the endoplasmic reticulum (ER), in order to enhance the activity of the MC4R at the cell surface. | 12-17-2009 |
20100189708 | HYDROXY PIPERIDINE DERIVATIVES TO TREAT GAUCHER DISEASE - The present invention provides novel hydroxy piperidine (HP) derivatives having (i) a positive charge at the position corresponding to the anomeric position of a pyranose ring; (ii) a short, flexible linker emanating from the corresponding position of the ring oxygen in a pyranose; and (iii) a lipophilic moiety connected to the linker and pharmaceutically acceptable salts thereof. The linker can be absent if the lipophilic moiety corresponds to a hydrocarbon chain with a linear length of 6 or more carbons. The present invention further provides a method for treating individuals having Gaucher disease by administering the novel HP derivative as “active-site specific chaperones” for the mutant glucocerebrosidase associated with the disease. | 07-29-2010 |
20110076765 | METHOD FOR INCREASING THE ACTIVITY OF LYSOSOMAL ENZYMES - Method for enhancing in a mammalian cell the activity of an enzyme associated with Gaucher Disease by administering a competitive inhibitor of glucocerebrosidase in an amount effective to enhance the activity of the enzyme. Preferred compounds for use in the method are imino sugars and related compounds. In particular, C8-12-alkyl derivatives of N-alkyl-deoxynojirimycin, isofagomine compounds, and calystegine compounds are effective to enhance glucocerebrosidase activity. | 03-31-2011 |
20140051725 | Method For Increasing The Activity Of Lysosomal Enzymes - Method for enhancing in a mammalian cell the activity of an enzyme associated with Gaucher Disease by administering a competitive inhibitor of glucocerebrosidase in an amount effective to enhance the activity of the enzyme. Preferred compounds for use in the method are imino sugars and related compounds. In particular, C8-12-alkyl derivatives of N-alkyl-deoxynojirimycin, isofagomine compounds, and calystegine compounds are effective to enhance glucocerebrosidase activity. | 02-20-2014 |
20140206718 | Method of enhancing lysosomal alpha-Galactosidase A - A method of enhancing the activity of lysosomal α-Galactosidase A (α-Gal A) in mammalian cells and for treatment of Fabry disease by administration of 1-deoxy-galactonojirimycin and related compounds. | 07-24-2014 |
20150258129 | Method for Increasing the Activity of Lysosomal Enzymes - Method for enhancing in a mammalian cell the activity of an enzyme associated with Gaucher Disease by administering a competitive inhibitor of glucocerebrosidase in an amount effective to enhance the activity of the enzyme. Preferred compounds for use in the method are imino sugars and related compounds. In particular, C8-12-alkyl derivatives of N-alkyl-deoxymojirimycin, isofagomine compounds, and calystegine compounds are effective to enhance glucocerebrosidase activity. | 09-17-2015 |
Patent application number | Description | Published |
20090135832 | PIPELINE SCHEDULER WITH FAIRNESS AND MINIMUM BANDWIDTH GUARANTEE - A pipeline scheduler provides a minimum bandwidth guarantee by transporting cells from an input port to an output port in a two-phased approach. Cells that conform to a minimum cell rate (MCR) are selected from queues at the input port and arranged into supercells for transport to the output port, followed by nonconforming cells, to guarantee fairness by using scheduling modules to build the supercells first for conforming cells, and then for nonconforming cells. Reservation vectors are used to permit the same time slot of the next frame to be reserved by a first queue, and the same time slot of the following time frame to be held for reservation by a second queue, to ensure equal time slot access by the first and second queues over successive time frames. | 05-28-2009 |
20100296513 | PIPELINE SCHEDULER WITH FAIRNESS AND MINIMUM BANDWIDTH GUARANTEE - A pipeline scheduler provides a minimum bandwidth guarantee by transporting cells from an input port to an output port in a two-phased approach. Cells that conform to a minimum cell rate (MCR) are selected from queues at the input port and arranged into supercells for transport to the output port, followed by nonconforming cells, to guarantee fairness by using scheduling modules to build the supercells first for conforming cells, and then for nonconforming cells. Reservation vectors are used to permit the same time slot of the next frame to be reserved by a first queue, and the same time slot of the following time frame to be held for reservation by a second queue, to ensure equal time slot access by the first and second queues over successive time frames. | 11-25-2010 |
20120213230 | PIPELINE SCHEDULER WITH FAIRNESS AND MINIMUM BANDWIDTH GUARANTEE - A pipeline scheduler provides a minimum bandwidth guarantee by transporting cells from an input port to an output port in a two-phased approach. Cells that conform to a minimum cell rate (MCR) are selected from queues at the input port and arranged into supercells for transport to the output port, followed by nonconforming cells, to guarantee fairness by using scheduling modules to build the supercells first for conforming cells, and then for nonconforming cells. Reservation vectors are used to permit the same time slot of the next frame to be reserved by a first queue, and the same time slot of the following time frame to be held for reservation by a second queue, to ensure equal time slot access by the first and second queues over successive time frames. | 08-23-2012 |
Patent application number | Description | Published |
20080269499 | CRYSTALLINE FORMS AND PROCESS FOR PREPARING SPIRO-HYDANTOIN COMPOUNDS - A process is provided for preparing spiro-hydantoin compounds of the formula II | 10-30-2008 |
20120010402 | CGRP Receptor Antagonists - The disclosure generally relates to the novel compounds of formula I, including their salts, which are CGRP receptor antagonists. The disclosure also relates to pharmaceutical compositions and methods for using the compounds in the treatment of CGRP related disorders including migraine and other headaches, neurogenic vasodilation, neurogenic inflammation, thermal injury, circulatory shock, flushing associated with menopause, airway inflammatory diseases such as asthma, and chronic obstructive pulmonary disease (COPD). | 01-12-2012 |
20120245356 | Process for the Preparation of Cycloheptapyridine CGRP Receptor Antagonists - The disclosure generally relates to a process for the preparation of compounds of formula I, including synthetic intermediates which are useful in the process. | 09-27-2012 |
20140135500 | Process for the Preparation of Cycloheptapyridine CGRP Receptor Antagonists - The disclosure generally relates to a process for the preparation of compounds of formula I, including synthetic intermediates which are useful in the process. | 05-15-2014 |
20150099887 | PROCESS FOR THE PREPARATION OF CYCLOHEPTAPYRIDINE CGRP RECEPTOR ANTAGONISTS - The disclosure generally relates to a process for the preparation of compounds of formula I, including synthetic intermediates which are useful in the process. | 04-09-2015 |
20150361047 | Process for the Preparation of Cycloheptapyridine CGRP Receptor Antagonists - The disclosure generally relates to a process for the preparation of compounds of formula I, including synthetic intermediates which are useful in the process. | 12-17-2015 |
Patent application number | Description | Published |
20080302107 | METHOD OF AND POWER PLANT FOR GENERATING POWER BY OXYFUEL COMBUSTION - A method of and a power plant for generating power by combusting carbonaceous fuel with substantially pure oxygen, and a method of modifying a process of generating power by combusting carbonaceous fuel from combusting the fuel with air to combusting the fuel with substantially pure oxygen. The methods include feeding substantially pure oxygen into a furnace for combusting fuel with the oxygen to produce exhaust gas including mainly carbon dioxide and water, recovering low-grade heat from the exhaust gas by using multiple exhaust gas coolers arranged in a downstream portion of the exhaust gas channel, wherein a first portion of the recovered low-grade heat is used for preheating feedwater; pressurizing a first portion of the exhaust gas in multiple exhaust gas compressors so as to produce liquid carbon dioxide, recycling a second portion of the exhaust gas to the furnace via an exhaust gas recycling channel, using a first portion of steam extracted from a steam turbine system to preheat feedwater, wherein the first portion of the recovered low-grade heat is more than 50% of the total amount of recovered low-grade heat, or larger than the first portion of the recovered low-grade heat in the air-fired process, allowing minimizing of the first portion of the extracted steam, and the expanding of a second portion of the extracted steam in at least one auxiliary steam turbine for driving at least one compressor or at least one pump of the power plant. | 12-11-2008 |
20090020405 | METHOD OF AND A PLANT FOR COMBUSTING CARBONACEOUS FUEL BY USING A SOLID OXYGEN CARRIER - A method of and a plant for combusting carbonaceous fuel, the method including the steps of introducing particulate oxygen selective sorbent, such as a perovskite type material, into an adsorption reactor of the combustion plant to form a first particle bed in the adsorption reactor, fluidizing the first particle bed by an oxygen-containing first fluidizing gas to adsorb oxygen from the fluidizing gas to the sorbent, conveying oxygen-rich sorbent from the adsorption reactor to a combustion reactor of the combustion plant to form a second particle bed in the combustion reactor, fluidizing the second particle bed by an oxygen-deficient second fluidizing gas to desorb oxygen from the sorbent, so as to produce free oxygen gas, and introducing carbonaceous fuel into the combustion reactor to oxidize the fuel with the free oxygen gas. | 01-22-2009 |
20090158978 | METHOD OF CONTROLLING A PROCESS OF GENERATING POWER BY OXYFUEL COMBUSTION - A method of controlling a process of generating power in a power plant with a boiler by combusting carbonaceous fuel with substantially pure oxygen. At full load conditions, the method includes introducing a first carbonaceous fuel feed stream into a furnace, introducing a first substantially pure oxygen feed stream into the furnace for combusting the first carbonaceous fuel feed stream with the oxygen, and recirculating a portion of the exhaust gas discharged from the furnace at a first recirculation flow rate to the furnace, to form, together with the first substantially pure oxygen feed stream, a first inlet gas stream having a predetermined average oxygen content, thereby discharging exhaust gas from the furnace at a first discharge flow rate. In second load conditions, corresponding to at most 90% load, the method includes introducing a second carbonaceous fuel feed stream into the furnace, introducing a second substantially pure oxygen feed stream into the furnace for combusting the second carbonaceous fuel feed stream with the oxygen, and recirculating a portion of the exhaust gas discharged from the furnace at a second recirculation flow rate to the furnace, to form, together with the second substantially pure oxygen feed stream, a second inlet gas stream, so as to discharge exhaust gas from the furnace at a second discharge flow rate, and controlling the second recirculation flow rate to be from the first recirculation flow rate to a value providing the second discharge flow rate to be substantially as high as the first discharge flow rate. | 06-25-2009 |
20090260585 | Oxyfuel Combusting Boiler System and a Method of Generating Power By Using the Boiler System - Carbonaceous fuel is combusted with an oxidant gas in a furnace of a boiler system to generate power. Oxidant gas is fed into the furnace for combusting the fuel to produce exhaust gas, the exhaust gas is discharged from the furnace via an exhaust gas channel, a stream of feedwater is conveyed from a final economizer arranged in the exhaust gas channel to evaporating and superheating heat exchange surfaces arranged in the furnace and in the exhaust gas channel for converting the feedwater to superheated steam, the superheated steam is converted in a high-pressure steam turbine for generating power, a first portion of steam is extracted from the high-pressure steam turbine for preheating the feedwater, a second portion of steam is conveyed from the high-pressure steam turbine to reheating heat exchange surfaces arranged in the exhaust gas channel for generating reheated steam, and the reheated steam is expanded in an intermediate pressure steam turbine for generating power. The oxidant gas can be a mixture of substantially pure oxygen and recycled exhaust gas, and the ratio of the first and second portions of steam can be controlled to obtain a desired flue gas temperature in the exhaust gas channel downstream of the final economizer. | 10-22-2009 |
20090293782 | METHOD OF AND SYSTEM FOR GENERATING POWER BY OXYFUEL COMBUSTION - A method of generating power by oxyfuel combustion. Carbonaceous fuel and oxidant gas are fed into a furnace. In a first operating mode, the oxidant gas includes a stream of substantially pure oxygen conveyed from an oxygen supply for combusting the fuel with the oxygen to produce exhaust gas including mainly carbon dioxide and water. The exhaust gas is discharged from the furnace and is divided into a recycling portion and an end portion. The recycling portion is recycled to the furnace. Heat is transferred from the end portion to the stream of substantially pure oxygen by circulating a liquid heat transfer medium in a passage between an exhaust gas cooler and an oxygen heater. | 12-03-2009 |
20090297993 | Method of and System For Generating Power By Oxyfuel Combustion - An oxyfuel combustion system for generating power that includes a furnace for combusting carbonaceous fuel and substantially pure oxygen to produce exhaust gas including mainly carbon dioxide and water. An exhaust gas channel system discharges the exhaust gas from the furnace. The exhaust gas channel system has an upstream channel, an outlet channel and a gas recycling channel. The upstream channel recycles a recycling portion of the exhaust gas through the recycling channel to the furnace, and conveys an end portion of the exhaust gas through the outlet channel for final processing. The upstream channel is divided between a first divider piece and a connecting piece into a first exhaust gas channel portion and a second exhaust gas channel portion. A gas-gas heat exchanger arranged in the first exhaust gas channel portion transfers heat from exhaust gas in the first exhaust gas channel portion to gas in the gas recycling channel. A first economizer arranged in the second exhaust gas channel portion transfers heat from exhaust gas in the second exhaust gas channel portion to a flow of feedwater in a feedwater line, and a second economizer arranged in the exhaust gas channel system downstream of the connecting piece transfers heat from gas in the exhaust gas channel system to the flow of feedwater in the feedwater line. | 12-03-2009 |
20110094228 | Method of Increasing the Performance of a Carbonaceous Fuel Combusting Boiler System - A method of increasing the power of a carbonaceous fuel combusting boiler system includes the steps of (a) feeding carbonaceous fuel into a furnace of the boiler system, (b) feeding oxidant gas into the furnace for combusting fuel to produce exhaust gas, (c) discharging the exhaust gas from the furnace via an exhaust gas channel, (d) conveying a stream of feedwater from a boiler economizer arranged in the exhaust gas channel to evaporating and superheating heat exchange surfaces arranged in the furnace and in the exhaust gas channel for converting the feedwater to superheated steam, (e) expanding the superheated steam in a high-pressure steam turbine for generating power, (f) extracting steam from the high-pressure steam turbine at a decreased rate for preheating the feedwater, (g) conveying steam from the high-pressure steam turbine at an increased rate to a reheater arranged in the exhaust gas channel for generating reheated steam, (h) expanding the reheated steam in an intermediate pressure steam turbine for generating power, and (i) conveying the exhaust gas in the exhaust gas channel from the reheater through a boiler economizer to a gas heater. The heat exchange surface area of at least one of the reheater and the boiler economizer is increased and/or a high pressure economizer is added downstream of the boiler economizer and upstream of the gas heater. | 04-28-2011 |
20110139046 | Emissionless Oxyfuel Combustion Process and a Combustion System Using Such a Process - A method of combusting carbonaceous fuel in a combustion system. The combustion system includes a source of oxygen and a furnace. The method includes the steps of (a) feeding fuel and combustion gas including oxygen and recycling gas into the furnace for combusting the fuel with the oxygen and producing exhaust gas that includes CO | 06-16-2011 |
20110294077 | Method of Controlling a Boiler Plant During Switchover From Air-Combustion to Oxygen-Combustion - A method of controlling a boiler plant during a switchover period from an air-combustion mode to an oxygen-combustion mode. The method includes steps of feeding fuel into a furnace of the boiler plant at a rate determined by a fuel feeding scheme, feeding air into the furnace at a rate determined by a descending air feeding scheme, feeding substantially pure oxygen into the furnace at a rate determined by an ascending oxygen feeding scheme, and recirculating flue gas into the furnace at a rate determined by an ascending flue gas recirculating scheme. The fuel feeding scheme, the air feeding scheme and the oxygen feeding scheme are such that the fuel is combusted and the flue gas containing residual oxygen is produced. Also, the fuel feeding scheme, the air feeding scheme and the oxygen feeding scheme are such that the content of residual oxygen in the flue gas is, during at least a portion of the switchover period, greater than during any of the air-combustion mode and the oxygen-combustion mode. The method makes it possible to reduce CO | 12-01-2011 |
20120189522 | Method of Desulfurizing Flue Gas, an Arrangement for Desulfurizing Flue Gas, and a Method of Modernizing a Desulfurization Arrangement - A method of desulfurizing flue gas in connection with oxy-combustion. A sulfur containing gas flow is introduced to a flue gas desulfurization arrangement having a spray tower at its top part and a reaction tank at its bottom part, in which the reaction tank contains liquid slurry having a surface level L. Sorbent-containing liquid slurry is sprayed to the sulfur containing gas flow. Sulfur-containing molecules are allowed to be absorbed into liquid slurry droplets. The liquid slurry droplets are allowed to enter the liquid slurry in the reaction tank. Oxygen containing gas is bubbled in the liquid slurry from a gas inlet header and nozzles in the reaction tank, in which the nozzles are arranged at a certain level in the reaction tank. Sulfur-containing particulates settle in the reaction tank. The sulfur-containing particulates are removed as a slurry from the reaction tank, and the bubbled gas that has left the liquid slurry is discharged separately from the flue gas from the flue gas desulfurization arrangement. | 07-26-2012 |
20130008394 | Radiant Superheater - A radiant superheater arranged to hang at the upper portion of a furnace of a boiler. The radiant superheater is substantially planar and includes a first vertical pass, a first connection pass, a second vertical pass, a third vertical pass, a second connection pass, and a fourth vertical pass. Each vertical pass includes an upper end and a lower end. The vertical passes are connected in series, so that steam to be superheated enters at the upper end of the first vertical pass and flows through the first vertical pass and from the lower end of the first vertical pass via the first connection pass to the lower end of the second vertical pass and through the second vertical pass and from the upper end of the second vertical pass to the upper end of the third vertical pass and through the third vertical pass and from the lower end of the third vertical pass via the second connection pass to the lower end of the fourth vertical pass and through the fourth vertical pass, to be discharged from the upper end of the fourth vertical pass. The first connection pass is arranged below the second connection pass so as to shield the second connection pass from radiation from the lower portion of the furnace. | 01-10-2013 |