| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 423244010 | Utilizing solid reactant or catalyst to remove or modify sulfur or sulfur containing component | 48 |
| 20130302235 | REMOVING SULFUR DIOXIDE FROM PACKAGING - A sulfur dioxide reducing composition for reducing the headspace concentration of sulfur dioxide in fruit packages includes a sulfur dioxide absorber having pores sized to retain sulfur dioxide therein and a clinching absorber on the sulfur dioxide absorber with which the sulfur dioxide reacts irreversibly with the sulfur dioxide. | 11-14-2013 |
| 423244020 | Reactant or catalyst on support | 16 |
| 20090022643 | SO3 REDUCTION CATALYST FOR PURIFYING AN EXHAUST GAS, PREPARATION PROCESS THEREOF, AND EXHAUST GAS PURIFYING METHOD USING THE CATALYST - To provide an SO | 01-22-2009 |
| 20090136404 | CATALYST COMPOSITION USEFUL IN THE CATALYTIC REDUCTION OF SULFUR COMPOUND CONTAINED IN A GAS STREAM AND A METHOD OF MAKING AND USING SUCH COMPOSITION - Disclosed is a composition useful in the hydrolysis of sulfur compounds that are contained in a gas stream. The composition comprises alumina, a group VI metal component and a group VIII metal component. The composition has a pore structure such that a large percentage of its total pore volume is contained within the pores having a pore diameter greater than 10,000 angstroms. | 05-28-2009 |
| 20100150805 | HIGHLY STABLE AND REFRACTORY MATERIALS USED AS CATALYST SUPPORTS - This invention involves highly porous, stable metal oxide felt materials that are used as catalytic supports for a number of different applications including dehydrogenation of light paraffins to olefins, selective hydrogenation of dienes to olefins, hydrogenation of carboxylic acids, oxidation or ammoxidation reactions, epoxidation of light olefins and removal of sulfur compounds from gas streams. | 06-17-2010 |
| 20100233054 | CATALYST AND PROCESS FOR THE DESULFURIZATION OF HYDROCARBON-COMPRISING GASES - The invention relates to a catalyst for the desulfurization of hydrocarbon-comprising gases, which comprises a support material, with the exception of activated carbons and zeolites, and a silver-comprising active composition, wherein the catalyst has a pore structure having a maximum number of the pores in a pore diameter range from 6 to 11 nm. | 09-16-2010 |
| 20100284879 | TREATMENTS OF TAIL GAS FROM A CLAUS UNIT OVER AN OPTIMIZED SEQUENCE OF CATALYSTS - For the conversion of sulphur-containing compounds present in a gas comprising H | 11-11-2010 |
| 20110014105 | DESULPHURISATION MATERIALS - A particulate desulphurisation material includes one or more nickel compounds, a zinc oxide support material, and one or more alkali metal compounds wherein the nickel content of the material is in the range 0.3 to 10% by weight and the alkali metal content of the material is in the range 0.2 to 10% by weight. A method of making the desulphurisation material includes the steps:
| 01-20-2011 |
| 20110110836 | DESULFURIZATION APPARATUS AND METHOD - A method and system for desulfurization comprising first and second metal oxides; a walled enclosure having an inlet and an exhaust for the passage of gas to be treated; the first and second metal oxide being combinable with hydrogen sulfide to produce a reaction comprising a sulfide and water; the first metal oxide forming a first layer and the second metal oxide forming a second layer within the walled surroundings; the first and second layers being positioned so the first layer removes the bulk amount of the hydrogen sulfide from the treated gas prior to passage through the second layer, and the second layer removes substantially all of the remaining hydrogen sulfide from the treated gas; the first metal oxide producing a stoichiometrical capacity in excess of 500 mg sulfur/gram; the second metal oxide reacts with the hydrogen sulfide more favorably but has a stoichiometrical capacity which is less than the first reactant; whereby the optimal amount by weight of the first and second metal oxides is achieved by utilizing two to three units by weight of the first metal oxide for every unit of the second metal oxide. | 05-12-2011 |
| 20110117001 | SYSTEM AND METHOD FOR REMOVING SULFUR-CONTAINING CONTAMINANTS FROM INDOOR AIR - A system and method for removing sulfur-containing contaminants from indoor air includes a panel system having a first layer and a second layer. The first layer can include a base media onto which sodium bicarbonate is attached. The second layer can include a base media onto which activated carbon is attached. Indoor air including sulfur-containing contaminants can contact and pass through the first layer. Sulfuric acid can react with the sodium bicarbonate to produce sodium sulfate, which can, in turn, act as a drying agent for organic sulfur-containing contaminants in the indoor air, such as carbon disulfide and carbonyl sulfide. As a result of such drying, the second layer can more effectively trap and/or bind (adsorb) the organic sulfur-containing contaminants so that these contaminants are removed from the contaminated air. The treated air can be returned to an indoor space of the structure. | 05-19-2011 |
| 20110200507 | ADSORBER MATERIAL AND PROCESS FOR DESULFURIZING HYDROCARBONACEOUS GASES - A process for removing sulfur compounds from a hydrocarbonaceous gas mixture, which comprises contacting the hydrocarbonaceous gas mixture with an adsorber material comprising copper oxide on magnesium silicate as support material. | 08-18-2011 |
| 20130216462 | METHOD FOR PROCESSING A SULFUR-CONTAINING GAS AND A HYDROGENATION CATALYST USED THEREFOR - The present invention relates to a method for processing a sulfur-containing gas and a hydrogenation catalyst used therefor. Said method comprises introducing the sulfur-containing gas into the tail gas hydrogenation unit of a sulfur recovery device, processing it with the hydrogenation catalyst of the present invention, absorbing the hydrogenated tail gas with a solvent and then regenerating, the regenerated hydrogen sulfide being recycled to the Claus unit to recover sulfur, the clean tail gas being incinerated in an incinerator to be discharged after reaching the standards. Said sulfur-containing gas comprises from 0 to 6 vol. % of sulfur dioxide and from 0 to 3 vol. % of oxygen, and has a temperature of from 100 to 200° C. The hydrogenation catalyst of the present invention comprises from 0.5 to 3 wt. % of an active component nickel oxide, from 1 to 4 wt. % of an active component cobalt oxide, from 8 to 20 wt. % of an active component molybdenum oxide or tungsten oxide, from 1 to 5 wt. % of a deoxidation auxiliary agent, from 10 to 40 wt. % of TiO2, the balance being γ-Al2O3, based on the weight of the catalyst. | 08-22-2013 |
| 20140161701 | DESULPHURISATION MATERIAL COMPRISING COPPER SUPPORTED ON ZINC OXIDE - A particulate desulphurisation material is described including one or more copper compounds supported on a zinc oxide support material, wherein the desulphurisation material has a copper content in the range 0.1 to 5.0% by weight and a tapped bulk density≧1.55 kg/l. | 06-12-2014 |
| 20140294710 | Method For Preparing A Catalyst Composition Suitable For Removing Sulfur From A Catalytic Reduction System - A method of preparing a catalyst composition suitable for removing sulfur from a catalytic reduction system and the catalyst composition prepared by the method are provided. The method of preparation of a catalyst composition, comprises: combining a metal oxide precursor, a catalyst metal precursor and an alkali metal precursor in the presence of a templating agent; hydrolyzing and condensing to form an intermediate product that comprises metal oxide, alkali metal oxide, and catalyst metal; and calcining to form a templated amorphous metal oxide substrate having a plurality of pores wherein the alkali metal oxide and catalyst metal are dispersed in an intermixed form in the metal oxide substrate. | 10-02-2014 |
| 423244030 | Carbonaceous support | 2 |
| 20090148374 | PROCESS AND CATALYST FOR DESULFURIZATION OF HYDROCARBONACEOUS OIL STREAM - The invention relates to a process and catalyst for the oxidative desulfurization of hydrocarbonaceous oil. In one aspect, solid carbon materials are provided having stable sulfur trioxide and nitrogen dioxide oxidative species on the surface thereof. Such materials are useful in the production of low sulfur hydrocarbon feedstocks and in the removal of refractory sulfur compounds. | 06-11-2009 |
| 20160250619 | Flue Gas Purification System and Process Using A Sorbent Polymer Composite Material | 09-01-2016 |
| 423244040 | Aluminosilicate support | 2 |
| 20100135883 | CATALYST SUPPORTS - This invention relates to a catalyst material, and its method of making and manufacture, useful for a diversity of chemical production processes as well as various emission control processes. More specifically, it relates to a catalyst composition, preferably comprising a metal oxide felt substrate, with one or more functional surface active constituents integrated on and/or in the substrate surface, which can be used in the removal of sulfur and sulfur compounds from hot gases as well as acting to trap solid particulates and trace metals within these hot gases. | 06-03-2010 |
| 20110243824 | CATALYST SUPPORTS - This invention relates to a catalyst material, and its method of making and manufacture, useful for a diversity of chemical production processes as well as various emission control processes. More specifically, it relates to a catalyst composition, preferably comprising a metal oxide felt substrate, with one or more functional surface active constituents integrated on and/or in the substrate surface, which can be used in the removal of sulfur and sulfur compounds from hot gases as well as acting to trap solid particulates and trace metals within these hot gases. | 10-06-2011 |
| 423244050 | Reactant added to fuel for reaction in gas mixture | 2 |
| 20080267848 | Apparatus and Methods for Non-Regenerative and Regenerative Hot Gas Sulfurization - Disclosed is a doped cerium oxide sorbent that can effectively and regenerably remove H | 10-30-2008 |
| 20100135884 | Process for Desulfurization of Hot Fuel Gases - The present invention involves a process and materials for desulfurization of a gaseous stream comprising contacting the gas stream with a manganese aluminate catalyst. The manganese aluminate catalyst is preferably selected from the group consisting of Mn | 06-03-2010 |
| 423244060 | Transition metal or compound thereof reactant | 5 |
| 20100143229 | Simultaneous Warm Gas Desulfurization and CO-Shift for Improved Syngas Cleanup - The present invention involves a process and materials for simultaneous desulfurization and water gas shift of a gaseous stream comprising contacting the gas stream with a nickel aluminate catalyst. The nickel aluminate catalyst is preferably selected from the group consisting of Ni | 06-10-2010 |
| 20110212009 | Obtaining multimetallic oxides derived from hydrotalcite type compounds - A procedure for obtaining mixed multimetallic oxides derived from hydrotalcite type compounds, characterized in that the laminar metallic hydroxides obtained are constituted by three or four metallic cations, forming part of the sheets of the hydrotalcite type material represented by the formula: | 09-01-2011 |
| 20130028822 | CATALYTIC COMPOSITIONS USEFUL IN REMOVAL OF SULFUR COMPOUNDS FROM GASEOUS HYDROCARBONS, PROCESSES FOR MAKING THESE AND USES THEREOF - A catalytic composition is disclosed, which exhibits an X-ray amorphous oxide, with a spinel formula and highly dispersed crystals of ZnO, CuO, and optionally CeO | 01-31-2013 |
| 20160059187 | Method For Removing Sulphur Dioxide From Gas Streams, Using Titanium Dioxide As Catalyst - The present invention relates to a method for removing sulphur dioxide from gaseous effluent, wherein a mixture of gaseous outlet gasses or gaseous effluent includes sulphur dioxide and carbon monoxide, and wherein, to perform a catalytic reduction, a catalyst is used to catalyse a reaction between carbon monoxide and sulphur dioxide to produce carbon dioxide and sulphur. | 03-03-2016 |
| 20160136567 | METHOD FOR REMOVING SULFUR COMPOUNDS FROM SOUR GAS STREAMS AND HYDROGEN RICH STREAMS - The present invention relates to a process for purifying a gas stream comprising hydrogen sulfide or mercaptans, or mixtures thereof. The gas stream can be a sour natural gas stream, a landfill gas or an industrial gas stream. The process comprises contacting the gas stream at effective absorption conditions including an absorption temperature less than about 300° C. with a solid absorbent effective to absorb the hydrogen sulfide, or mercaptans or mixtures thereof to provide a purified gas stream. Method is useful for treating gas streams having up to 90 vol-% hydrogen sulfide, or treating highly pure hydrogen streams. The invention is useful as a guard bed for fuel cells and sensitive laboratory instruments. The invention can also be employed to treat steam reformer product hydrogen streams without the need for further compression of the product hydrogen streams. | 05-19-2016 |
| 423244070 | Alkali or alkaline earth or compound reactant | 14 |
| 20080233028 | Process and system for reducing sulfur trioxide emissions - A process for reducing an amount of sulfur trioxide present in a flue gas stream ( | 09-25-2008 |
| 20090208397 | DRY SULFUR DIOXIDE (SO2) SCRUBBING - A system for removing sulfur dioxide (SO | 08-20-2009 |
| 20100233055 | INTEGRATED DRY SCRUBBER SYSTEM - An air quality control system (AQCS) ( | 09-16-2010 |
| 20100254873 | Methods of Use for Lime Residuals - Disclosed is a method of using lime residuals from a water treatment plant that includes collecting lime residuals from a water treatment plant, transporting the lime residuals to a power plant, pumping the lime residuals into a limestone slurry storage tank and utilizing the lime residuals in a flue gas desulphurization process. | 10-07-2010 |
| 20120244054 | Two-Step Process for the Cleaning of a Flue Gas - A two-step process for the cleaning of a stream of flue gas, containing noxious acidic compounds, by means of a quantity of basic sodium reagent, wherein the quantity of basic sodium reagent is injected in a secondary stream diverted from the main stream wherein it reacts in a first step with the noxious acidic compounds contained in the secondary stream during a pre reaction period, resulting in pre-reacted basic reagent, un-reacted basic reagent and partially cleaned secondary stream of flue gas; and wherein after the pre reaction period, the partially cleaned secondary stream comprising the quantity of pre reacted basic sodium reagent is reintroduced in the main stream, the pre-reacted reagent and un-reacted reagent further reacting in a second step with at least part of the remaining noxious acids left in the partially cleaned secondary stream of flue gas. | 09-27-2012 |
| 20130294992 | DRY SCRUBBER SYSTEM - An air quality control system (AQCS) useful for processing a gas stream, such as a flue gas stream emitted from a fossil fuel fired boiler, for at least partial removal of acidic and like pollutants therefrom. The air quality control system includes a CDS reactor useful using a reducing agent slurry. | 11-07-2013 |
| 20150139882 | INTEGRATED SORBENT INJECTION AND FLUE GAS DESULFURIZATION SYSTEM - An integrated sorbent injection, heat recovery, and flue gas desulfurization system is disclosed. A dry sorbent is injected into the flue gas upstream of the air heater. This reduces the acid dew point temperature, permitting additional heat energy to be captured when the flue gas passes through the air heater. The flue gas then passes through a desulfurization unit and through a baghouse, where solids are captured. The capture of additional heat energy permits the overall boiler efficiency to be increased while safely operating at a lower flue gas temperature. The integrated system consumes no greater quantity of sorbent than conventional methods but provides the benefit of improved plant heat rate. | 05-21-2015 |
| 423244080 | Carbonate | 7 |
| 20080279743 | System and method for reducing SO2 emissions of a carbonaceous fuel fired hot gas stream - A system and method of reducing SO | 11-13-2008 |
| 20100021363 | SYSTEM AND METHOD OF PROTECTING A NOx REDUCING CATALYST - A method of protecting a NOx reducing catalyst | 01-28-2010 |
| 20100028233 | Method for Combustion of a Carbon-Containing Fuel, Especially a Fossil Fuel - A method for combustion of a carbon-containing fuel, especially a fossil fuel, further preferred coal. The flue gas is at least dedusted, is desulfurized with an absorbent containing calcium compounds, and in a two-stage high temperature process is decarbonized with calcium oxide in a carbonator accompanied by formation of calcium carbonate and the calcium carbonate is regenerated in a calcinator, while heat is supplied and while carbon dioxide is set free, to form calcium oxide, which is recirculated into the carbonator. At least to one of the stages of the high temperature process fresh calcium containing absorbent is added. Calcium compounds from the carbonator and/or calcinator are used as absorbent with the flue gas desulfurization. | 02-04-2010 |
| 20100047147 | CIRCULATING FLUIDIZED BED POWER PLANT HAVING INTEGRATED SULFUR DIOXIDE SCRUBBER SYSTEM WITH LIME FEED - A circulating fluidized bed power plant | 02-25-2010 |
| 20110014106 | COMBUSTION FLUE GAS SOx TREATMENT VIA DRY SORBENT INJECTION - Combustion flue gas containing SO | 01-20-2011 |
| 20130129591 | METHOD AND APPARATUS FOR SOx AND CO2 REMOVAL FROM FLUE GAS - The present invention relates to a method for combined SO | 05-23-2013 |
| 20150360174 | AIR POLLUTION CONTROL SYSTEM AND AIR POLLUTION CONTROL METHOD - Provided is an air pollution control system including: a denitration apparatus; an air heater; a precipitator; a desulfurization apparatus; a dehydrator; a spray drying apparatus provided with a spray unit that is configured to spray dehydrated filtrate as desulfurization wastewater supplied from the dehydrator; a flue gas introduction line through which a branch gas branched from the flue gas is introduced to the spray drying apparatus; a flue gas supply line through which flue gas returns to a main flue gas duct, the flue gas being obtained after the dehydrated filtrate is dried by the spray drying apparatus; and a powder supply apparatus that is configured to supply a powder to the flue gas introduction line. | 12-17-2015 |
| 423244090 | Catalyst | 10 |
| 20080233029 | Separation of Carbon Dioxide (Co2) From Gas Mixtures By Calcium Based Reaction Separation (Cars-Co2) Process - A reaction-based process has been developed for the selective removal of carbon dioxide (CO | 09-25-2008 |
| 20090028769 | METHOD FOR DISPOSAL OF DI-SULPHIDE COMPOUNDS - The invention provides a method for disposal of di-sulphide compounds, the method comprising the steps of: | 01-29-2009 |
| 20090087368 | Configurations And Methods For Removal Of Mercaptanes From Feed Gases - A sulfur species-containing feed gas is processed in a treatment plant in which COS is hydrolyzed, and in which so produced hydrogen sulfide and other sulfur species are absorbed in a lean hydrocarbon liquid. The sulfur species in the so formed rich hydrocarbon liquid are then subjected to catalytic conversion into disulfides, which are subsequently removed from the rich solvent. Most preferably, sulfur free lean solvent is regenerated in a distillation column and/or refinery unit, and light components are recycled from the rich hydrocarbon liquid to the absorber. | 04-02-2009 |
| 20100008839 | METHOD AND DEVICE FOR CONTINUOUS PRODUCTION OF HYDROGEN SULPHIDE - The invention relates to a process and to an apparatus for continuously preparing hydrogen sulfide H | 01-14-2010 |
| 20100196241 | Methods and Systems for Reducing Particulate Matter in a Gaseous Stream - Methods and systems for reducing emissions of particulate matter from a gaseous stream are provided. The subject systems include a catalyst that reduces the amount of particulate matter emissions in the gaseous stream. Embodiments of the subject systems may also reduce the amount of particulate matter precursor emissions in the gaseous stream. In some cases, the subject systems and methods include a sorber that facilitates the reduction in particulate matter and particulate matter precursors in the gaseous stream. The subject methods and systems find use in a variety of applications where it is desired to reduce particulate matter emissions from a gaseous stream. | 08-05-2010 |
| 20110020205 | CARBON-BASED CATALYST FOR FLUE GAS DESULFURIZATION AND METHOD OF PRODUCING THE SAME AND USE THEREOF FOR REMOVING MERCURY IN FLUE GAS - A carbon-based catalyst for flue gas desulfurization is brought into contact with a flue gas containing at least SO | 01-27-2011 |
| 20150298055 | FLUE GAS TREATMENT SYSTEM AND METHOD - A flue gas treatment system in which the desulfurization of an flue gas is attained by: catalytically converting SO | 10-22-2015 |
| 423244100 | Transition metal or compound thereof catalyst | 3 |
| 20080253949 | PROCESS FOR REMOVING SULFUR FROM A FUEL GAS STREAM - A process for removing organic sulfur from a fuel gas stream that further contains light olefins by catalytic hydrodesulfurization to yield a treated fuel gas having an very low concentration of organic sulfur. The effluent of the catalytic hydrodesulfurization reactor may be cooled with a portion thereof being recycled and introduced along with the fuel gas stream that is charged to the hydrodesulfurization reactor. The remaining, unrecycled portion of the effluent may further be treated to remove the hydrogen sulfide that is yielded from by the hydrodesulfurization of the fuel gas stream. | 10-16-2008 |
| 20090269266 | Oxidic Metal Composition, Its Preparation And Use As Catalyst Composition - Oxidic composition consisting essentially of oxidic forms of a first metal, a second metal, and optionally a third metal, the first metal being either Ca or Ba and being present in the composition in an amount of from about 5 to about 80 wt %, the second metal being Al and being present in the composition in an amount of from about 5 to about 80 wt %, the third metal being selected from the group consisting of La, Ti, and Zr, and being present in an amount of from 0 to about 17 wt %—all weight percentages calculated as oxides and based on the weight of the oxidic composition, the oxidic composition being obtainable by | 10-29-2009 |
| 20120148468 | CATALYST COMPOSITION USEFUL IN THE CATALYTIC REDUCTION OF SULFUR COMPOUND CONTAINED IN A GAS STREAM AND A METHOD OF MAKING AND USING SUCH COMPOSITION - Disclosed is a composition useful in the hydrolysis of sulfur compounds that are contained in a gas stream. The composition comprises alumina, a group VI metal component and a group VIII metal component. The composition has a pore structure such that a large percentage of its total pore volume is contained within the pores having a pore diameter greater than 10,000 angstroms. | 06-14-2012 |
