Class / Patent application number | Description | Number of patent applications / Date published |
095092000 | And liquid contact (e.g., scrubbing, sorption, etc.) | 46 |
20080216651 | HIGH VOLUME, LOW BACK-PRESSURE GAS SCRUBBER - In one aspect of the invention there is provided a gas scrubbing system for removing contaminants from a flow of fluid, comprising a container having an interior volume, an inlet for receiving the flow of fluid and an outlet for dispensing the stream of fluid, a treatment liquid, a porous medium positioned in the interior volume, between the inlet and outlet, said porous medium providing a high surface area to facilitate chemical interactions between the fluid flow and the treatment liquid and means to apply the treatment liquid onto the porous medium. A contact cell aspect of the porous medium and a method aspect are also provided. | 09-11-2008 |
20090293720 | ADSORBENT AND ADSORBENT BED FOR MATERIALS CAPTURE AND SEPARATION PROCESSES - A method device and material for performing adsorption wherein a fluid mixture is passed through a channel in a structured adsorbent bed having a solid adsorbent comprised of adsorbent particles having a general diameter less than 100 um, loaded in a porous support matrix defining at least one straight flow channel. The adsorbent bed is configured to allow passage of a fluid through said channel and diffusion of a target material into said adsorbent under a pressure gradient driving force. The targeted molecular species in the fluid mixture diffuses across the porous support retaining layer, contacts the adsorbent, and adsorbs on the adsorbent, while the remaining species in the fluid mixture flows out of the channel. | 12-03-2009 |
20090320678 | Sorbent Filter for the Removal of Vapor Phase Contaminants - Methods and apparatuses are described for removing a contaminant, such as a vaporous trace metal contaminant like mercury, from a gas stream. In one embodiment, a primary particulate collection device that removes particulate matter is used. In this embodiment, a sorbent filter is placed within the housing of the primary particulate collection device, such as an electrostatic precipitator or a baghouse, to adsorb the contaminant of interest. In another embodiment, a sorbent filter is placed within or after a scrubber, such as a wet scrubber, to adsorb the contaminant of interest. In some embodiments, the invention provides methods and apparatuses that can advantageously be retrofit into existing particulate collection equipment. In some embodiments, the invention provides methods and apparatuses that in addition to removal of a contaminant additionally remove particulate matter from a gas stream. | 12-31-2009 |
20100031819 | Purification Of An H2/CO Mixture With Heater Skin Temperature Control - The invention relates to a method for purifying or separating a supply gas flow containing at least one impurity, in which: a) said supply gas flow is contacted with a first adsorbent for the adsorption-removal of at least one said impurity; b) recovering said purified or separated gas; c) heating a regeneration gas containing at least hydrogen (H | 02-11-2010 |
20100101412 | METHOD AND SYSTEM FOR REMOVING ALKYL HALIDES FROM GASES - An alkyl halide such as methyl bromide can be effectively removed from a gas stream by passing the gas stream through a bed of adsorbent at a relatively low temperature to adsorb the alkyl halide onto the adsorbent, desorbing the alkyl halide at a higher temperature to produce a smaller volume of gas containing the alkyl halide in more concentrated form, and then reacting the alkyl halide with a nucleophile contained in a liquid phase by contacting this smaller gas volume with such liquid phase. | 04-29-2010 |
20100107871 | FLUORIDE ION CLEANING METHOD - A fluoride ion cleaning method includes generating hydrogen fluoride (HF) gas in-situ in a cleaning retort; contacting a part in need of cleaning with the generated HF gas; scrubbing an initial effluent stream in-situ to substantially remove residual HF gas therefrom; and passing the scrubbed effluent gas stream out of the cleaning retort. In an exemplary method, a liquid or gaseous halogenated feedstock is introduced into a cleaning retort; hydrogen gas is introduced into the cleaning retort, HF gas is generated by a reaction of the feedstock with hydrogen gas at a sufficient temperature. In an exemplary method, only HF gas generated in-situ or reconstituted in-situ is utilized in the cleaning process. | 05-06-2010 |
20100107872 | BIOGAS UPGRADING - A process and apparatus for treating a biogas stream. The treatment is both to increase methane content and reduce H | 05-06-2010 |
20100192770 | CYCLIC-AMINE-COMPRISING ABSORPTION MEDIUM FOR REMOVING ACID GASES - An absorption medium for removing acid gases from a fluid stream comprises an aqueous solution of A) at least one cyclic amine compound having solely tertiary amine groups and/or sterically hindered secondary amine groups and B) at least one cyclic amine compound having at least one sterically unhindered secondary amine group. The absorption medium comprises, e.g., an aqueous solution of A) 1-hydroxyethylpiperidine and/or triethylenediamine and B) piperazine. The absorption medium is particularly suitable for separating off carbon dioxide from flue gases and satisfies the following criteria: (i) sufficient capacity at low CO | 08-05-2010 |
20100218676 | Method and Composition For Sorbing Toxic Substances - Toxic substances such as heavy metals are extracted from a medium using a sorbent composition. The sorbent composition is derived by sulfidation of red mud, which contains hydrated ferric oxides derived from the Bayer processing of bauxite ores. Exemplary sulfidizing compounds are H | 09-02-2010 |
20100300287 | Slurried Solid Media for Simultaneous Water Purification and Carbon Dioxide Removal from Gas Mixtures - A slurried solid media for simultaneous water purification and carbon dioxide removal from gas mixtures includes the steps of dissolving the gas mixture and carbon dioxide in water providing a gas, carbon dioxide, water mixture; adding a porous solid media to the gas, carbon dioxide, water mixture forming a slurry of gas, carbon dioxide, water, and porous solid media; heating the slurry of gas, carbon dioxide, water, and porous solid media producing steam; and cooling the steam to produce purified water and carbon dioxide. | 12-02-2010 |
20110079146 | METHOD AND APPARATUS FOR EXTRACTING CARBON DIOXIDE FROM AIR - A method and apparatus for extracting CO | 04-07-2011 |
20110079147 | METHOD AND APPARATUS FOR EXTRACTING CARBON DIOXIDE FROM AIR - A method and apparatus for extracting CO | 04-07-2011 |
20110083554 | METHOD AND APPARATUS FOR EXTRACTING CARBON DIOXIDE FROM AIR - A method and apparatus for extracting CO | 04-14-2011 |
20110100213 | SYSTEM AND METHOD FOR REDUCING MOISTURE IN A COMPRESSED AIR ENERGY STORAGE SYSTEM - A method, system, and apparatus including a compressed air energy storage system that includes an ambient air intake configured to intake a quantity of ambient air for storage in a compressed air storage volume, a compression system having a compression path that is configured to convey air compressed by the compression system through the compression system, a first path configured to convey ambient air to the compression system, a second path proceeding from the compression system to the compressed air storage volume and configured to convey compressed air to the compressed air storage volume, and a dehumidifying system. The dehumidifying system is coupleable to at least one of the first path that proceeds from the ambient air intake to the compression system, the compression path, and the second path. The dehumidifying system includes a dehumidifying component configured to remove moisture from the ambient air and/or the compressed air. | 05-05-2011 |
20110185900 | METHOD FOR BUILDING REMEDIATION CAUSED BY DEFECTIVE DRYWALL - A method of remediating at least a portion of a building that contains defective drywall is presented. The method comprises removal of the defective drywall and cross-contaminated drywall, actively desorbing volatile compounds from the building materials exposed after removal of the drywall and passively desorbing remaining contaminants by depositing a film of an absorbent on the accessible surfaces of the exposed building materials. Active desorbing of volatiles can be carried out with forced thermal desorption, where the interior surfaces of the building are heated while the air is removed and replaced with air free of the volatile compounds. The absorbent for passive desorption can be a nanoparticulate metal oxide. | 08-04-2011 |
20110247494 | LIQUID SORBANT, METHOD OF USING A LIQUID SORBANT, AND DEVICE FOR SORBING A GAS - A method for sorbing a gas using an ionic liquid to sorb a vapor having an electric multi-pole moment. The ionic liquid comprises an anion and a cation. The electric multi-pole moment may be an electric dipole moment and/or an electric quadru-pole moment. The sorption may be an adsorption or an absorption. The ionic liquid may be a liquid that substantially contains only anions and cations, while not containing other components, such as water. Alternatively, a solution containing the ionic liquid and a solvent or further compound, such as water, may be used. | 10-13-2011 |
20110252967 | METHOD AND ARRANGEMENT FOR REMOVING SOLID PARTICLES AND TAR COMPONENT FROM CARBON MONOXIDE GAS - A method and arrangement for removing solid particles and tar component from carbon monoxide gas. In the method, carbon monoxide gas is conducted from a ferroalloy smelting furnace ( | 10-20-2011 |
20120247330 | METHOD AND APPARATUS FOR RAPID ADSORPTION-DESORPTION CO2 CAPTURE - An apparatus for capture and sequestration of CO | 10-04-2012 |
20120304857 | TREATMENT OF CONTAMINATED GASES - A contaminant is removed from a gas in a method in which the gas is contacted with a solvent for the contaminant, and the resultant solution is contacted with intercalated graphite onto which the contaminant is adsorbed. The solvent will normally comprise water, and may itself be a contaminated liquid. In a preferred method the solvent is in a reservoir with particulate intercalated graphite; the contaminated gas is delivered to the base of the reservoir; and the gas rises in the solvent mobilizing the intercalated graphite in the reservoir. | 12-06-2012 |
20130055893 | Chamber Air Scrubber Assembly - A chamber air scrubber a chamber with an independent air scrubbing system for configured to adsorb plant odors and emissions. The scrubber includes air scrubbers for cleaning the air. The air scrubbers include a carbon portion with active carbon that adsorbs odors and emissions. The carbon portion includes an outer and an inner cylindrical frame that retain active carbon between them. The air scrubbers also include a series of fans that forces air through the carbon portion. The fans allow the air to pass from a lower chamber to an upper chamber. The air enters through an inlet in the lower chamber before passing over a liquid chiller. The air transfers the thermal energy generated by the plants to a vent in the upper chamber. This serves to eliminate odor from the plants. | 03-07-2013 |
20130081538 | MIST/MOISTURE REMOVAL USING FIXED BED TRICKLE COLUMNS - A moisture removal system for removing water moisture from an air stream and an associated method are provided. The moisture removal system includes one or more packed beds that include a water-entry surface at which liquid water is received and an air-entry surface that is located substantially opposite the water-entry surface and at which the air stream is received. The air stream passes through the one or more packed beds in a direction substantially counter-current to the passage of the liquid water and the liquid water and the air stream contact one another in the one or more packed beds resulting in the removal of at least a portion of the water moisture from the air stream. The moisture removal system can be located upstream of and be operably connected to the inlet of a gas turbine system to which the air stream is delivered from the moisture removal system. | 04-04-2013 |
20130104734 | Reduction of Mercury Emissions From Cement Plants | 05-02-2013 |
20130186271 | DE-POWDERING PLANT FOR A SCRAP SHREDDING MACHINE AND RELATIVE METHOD - A de-powdering plant is able to be used downstream of a shredding machine and comprises a first section for processing a primary stream of powder and air arriving from a first exit line from the shredding machine, which comprises a unit for damping powders using humidity connected to an air intake downstream of the shredding machine. The first processing section also comprises a processing unit using active carbons filtration, downstream of the unit for damping powders using humidity, suitable for the adsorption of the volatile organic substances present in a stream of air exiting from the unit for damping powders using humidity. The plant comprises heating means to heat, directly or indirectly, the stream of air saturated with humidity exiting from the unit for damping powders using humidity, before it enters into the processing unit using active carbons filtration. | 07-25-2013 |
20130327215 | COMPACT AIR QUALITY CONTROL SYSTEM COMPARTMENT FOR ALUMINIUM PRODUCTION PLANT - A first contact reactor, mechanical separator device, one or more second contact reactors, silo, filter, one or more fans each equipped with one or more vibration dampers, an optional wet scrubber and stack are each integrated into a single compact air quality control system (AQCS) compartment. Additionally, a process gas cooling system may be integrated into the compact AQCS compartment. Benefits of the subject compact AQCS compartment includes footprint reduction, operating cost reduction from reduced pressure drop due to reduced ductwork, capital cost reduction from reduced ductwork, noise reduction, weather protection and increased adaptability to meet specific system requirements. | 12-12-2013 |
20130333565 | DEVICE AND A METHOD OF CLEANING AN EFFLUENT GAS FROM AN ALUMINIUM PRODUCTION ELECTROLYTIC CELL - A gas cleaning unit for cleaning an effluent gas of at least one aluminium production electrolytic cell comprises a contact reactor in which the effluent gas is brought into contact with alumina, and a dust removal device for removing at least a portion of the alumina. The gas cleaning unit further comprises a wet scrubber in which the effluent gas is brought into contact with an absorption liquid containing water for removing further pollutants from the effluent gas. The wet scrubber is positioned at a point vertically higher than that of the dust removal device. | 12-19-2013 |
20140060325 | PROCESS STREAM DESULFURIZATION - A method of reducing the concentration of at least one sulfur compound in a process stream and for recovering at least one sulfur compound from a process stream are provided. A process stream is delivered to a vessel, wherein the vessel comprises an adsorbent material. At least one solvent is transferred into the vessel. One or more fluids are then removed from the vessel. At least one of the fluids removed from the vessel comprises a clean gas. The adsorbent material may be regenerated to yield a high concentration of the at least one sulfur compound. | 03-06-2014 |
20140260975 | Quick Switch Pollution Control System for Vacuum Truck Operation - Vacuum trucks are utilized for collecting liquids and solids capable of fluidization, via a hose or pipe connected to a holding tank in which a vacuum has been induced via an air mover such as a blower. The air stream drawn from the holding tank must be discharged to the atmosphere; environmental laws may require treatment of the exhaust stream prior to discharge. Vacuum trucks used in industrial settings like petroleum refineries and chemical plants may require a large charge of materials to remove pollutants discharged from the vacuum truck holding tank. The embodiments disclosed herein include modularized “control units,” containing adsorbents and/or absorbents to reduce the organic content of the exhaust gas, including VOCs as well as specific organic compounds of concern. These materials must be replaced when they are no longer effective in removing pollutants. Embodiments herein include a system for efficient change out of control units to allow continued operation. This apparatus and method allows for the change out of the control units at the location or site of the operation of the vacuum unit rather than requiring return to a service point. | 09-18-2014 |
20140260976 | Mist Elimination and Pollutant Removal Device and Method - An integrated device for removal of both liquid-containing droplets and pollutants from a gas stream includes a plurality of passageways and a plurality of exposed surface portions, different ones of the surface portions disposed along different ones of the plurality of passageways. The plurality of passageways include an inlet and an outlet for the flow of a gas stream therethrough, wherein each passageway includes at least one segment configured to perturb the flow of at least a portion of the gas stream between the inlet and the outlet. Such gas perturbation enhances gas stream contact with the exposed surfaces. Portions of the exposed surfaces comprise a sorbent-polymer-composite material adapted for adsorption of elemental and oxidized mercury vapor. The exposed surfaces are disposed to enhance the removal of liquid-containing droplets and elemental and oxidized mercury vapor. | 09-18-2014 |
20150047503 | ENHANCED HYDROGEN RECOVERY - A process for recovering hydrogen during hydroprocessing, where the process includes providing a pressure increasing device to a hydroprocessing unit, wherein the pressure increasing device utilizes a high pressure stream from a separator for increasing pressure; introducing a hydrogen containing stream to the pressure increasing device, thereby increasing the pressure of the hydrogen containing stream; and routing the hydrogen containing stream from the pressure increasing device to a vapor-liquid separator. The process also includes separating the hydrogen from the hydrogen containing stream in a hydrogen purification unit to produce a recovered hydrogen stream; and then preferably using the recovered hydrogen stream from the hydrogen purification unit within the hydroprocessing unit. | 02-19-2015 |
20150135950 | CARBON SAFE VAPOR RECOVERY SYSTEM - An apparatus for recovering volatile liquid vapor from an air-volatile liquid vapor mixture includes a vapor blower unit having a first inlet and a first outlet. In addition the apparatus includes a vapor adsorption unit including a second inlet and a second outlet and a solid adsorbent adsorption unit including a third inlet and a third outlet. Further the apparatus includes a vapor regeneration unit including an intake port and a discharge port as well as a conduit system. The conduit system connects the first outlet to the second inlet, the second outlet to the third inlet, the third outlet to the intake port and the discharge port to the first inlet. | 05-21-2015 |
20150360169 | METHOD FOR TREATING A HYDROCARBON-RICH GAS MIXTURE CONTAINING MERCURY AND ACID GASES - A method for treating a hydrocarbon-rich gas mixture containing mercury and acid gases, said gas mixture being natural gas in particular, wherein the gas mixture is subject to an adsorptive mercury removal and a downstream acid-gas scrubbing. Before the gas mixture to be treated is fed to the adsorptive mercury removal, the gas mixture to be treated is heated at least to such an extent that the gas mixture does not fall below the water dew point in the adsorptive mercury removal and does not fall below the hydrocarbon dew point in the acid-gas scrubbing. | 12-17-2015 |
20160001261 | Flue Gas Sorbents, Methods For Their Manufacture, and Their Use in Removal of Mercury From Gaseous Streams - Disclosed are sorbents having superior water leachability performance characteristics especially when used as sorbents in semi-dry (CDS), high moisture (SDA), and fully wet SO | 01-07-2016 |
20160250584 | DEVICE AND METHOD FOR SIMULTANEOUS HYDROGEN SULPHIDE REMOVAL AND BIOGAS UPGRADING | 09-01-2016 |
095093000 | Sweep gas used on solid sorbent | 9 |
20080245232 | Downflow Biofiltration of Hydrogen Sulfide-Containing Gas - A method for treating a gas containing sulfur, the method comprising the steps of: introducing a gas into a headspace of a vessel; passing the gas through a filtration medium contained in the vessel, wherein the filtration medium comprises sulfur-oxidizing organisms, wherein the gas is passed through the filtration medium in a generally downward direction; and irrigating the filtration medium with an aqueous liquid, wherein the pH of the aqueous liquid is at least 5. | 10-09-2008 |
20080295688 | Process for Extracting (Chlorinated) Hydrocarbon-Free Hydrogen Chloride and Phosgene-Free (Chlorinated) Hydrocarbons from a Hydrogen Chloride Stream Containing (Chlorinated) Hydrocarbons and Phosgene - Process for recovering (chloro)hydrocarbon-free hydrogen chloride and phosgene-free (chloro)hydrocarbons from a hydrogen chloride stream comprising (chloro)hydrocarbons and phosgene, which comprises
| 12-04-2008 |
20090101010 | FILTER CARTRIDGE FOR RECUPERATING HALOGENATED HYDROCARBONS - A filter cartridge for recovering halogenated hydrocarbons (HKW), such as those occurring in inhalation anesthetics in the medical field, contains a first gas inlet; a container which contains a filter insert; wherein the container is connected over a connection with a cover and with a gas release; wherein the container is united via two sealing rings and a filter plate with the cover; wherein the filter insert contains a zeolite; wherein the filter insert has openings; wherein the filter insert adapts with the base of the filter insert to recesses in the container. | 04-23-2009 |
20100000407 | PROCESS FOR REMOVAL OF HYDROGEN SULPHIDE, IRON PENTACARBONYL AND NICKEL TETRACARBONYL FROM A SYNTHESIS GAS STREAM - The invention provides a process for removal of hydrogen sulphide, iron pentacarbonyl and nickel tetracarbonyl from a feed synthesis gas stream, the process comprising the steps of: (a) removal of hydrogen sulphide and of iron pentacarbonyl by contacting the feed synthesis gas stream with an absorbing liquid comprising water, physical solvent and an amine, to obtain a synthesis gas stream depleted of hydrogen sulphide and depleted of iron pentacarbonyl; (b) adsorption of nickel tetracarbonyl by contacting the synthesis gas stream depleted of hydrogen sulphide and depleted of iron pentacarbonyl with solid adsorbent comprising activated carbon to obtain solid adsorbent enriched in nickel tetracarbonyl and a purified synthesis gas stream. | 01-07-2010 |
20100024641 | Purification Of An H2/CO Mixture With Lead Control Of The Regeneration Heater - A method of purifying a gaseous mixture rich in hydrogen and in carbon monoxide, commonly termed an H | 02-04-2010 |
20100224061 | Process and Apparatus For CO2 Recovery From Flue Gas With Thermocompression - A process for the recovery of CO | 09-09-2010 |
20100288123 | Processes For The Recovery Of High Purity Hydrogen And High Purity Carbon Dioxide - The present invention relates to various processes for recovering high purity gaseous hydrogen and high purity gaseous carbon dioxide from the gas stream produced using steam hydrocarbon reforming, especially steam methane reforming, utilizing a H | 11-18-2010 |
20120137881 | METHOD OF REUSING HYDROGEN - [Problems] Attempts have already been made to effectively utilize the by-produced hydrogen chloride in the exhaust gas discharged from the step of producing polysilicon. Hydrogen in the exhaust gas, too, has been partly utilized without using but discarding, however, the purge hydrogen that is used for desorbing the hydrogen chloride adsorbed in the above step. The invention recovers highly pure hydrogen from the exhaust purge gas and reuses it as a hydrogen source in other production steps contributing to greatly reducing the disposal cost and the cost of producing polysilicon. | 06-07-2012 |
20160001215 | SYSTEM AND METHOD FOR REGENERATING ABSORBER BED FOR DRYING COMPRESSED HUMIDIFIED HYDROGEN - A system for compressing and drying hydrogen is provided. The system may have a humidifier configured to receive and humidify a concentrated hydrogen stream and produce a first humidified hydrogen stream. The system may also have a compressor configured to receive and compress the first humidified hydrogen stream, and produce a pressurized humidified hydrogen stream. The system may further have a dryer including a first bed configured to in production mode receive the pressurized humidified hydrogen stream, absorb at least a portion of the humidity, and produce a product hydrogen stream. The first bed may further be configured to in regeneration mode receive a portion of the concentrated hydrogen stream to regenerate the first bed, and produce a second humidified hydrogen stream. | 01-07-2016 |
095094000 | And recycle or reuse of contact liquid for further contact | 4 |
20080264252 | Method of Diminishing Organochlorine Compound in Cement Production Equipment and Cement Production Equipment - The method for reducing organic chlorine compounds in the cement production facility of the present invention is a method for reducing organic chlorine compounds in cement production facility by which a quantity of organic chlorine compounds contained in cement raw materials is reduced in the cement production facility, which is provided with an organic matter adsorbing step in which an adsorbing powder is supplied into exhaust gas generated on calcination of cement clinker from the cement raw materials, thereby the organic chlorine compounds are adsorbed on the adsorbing powder and an adsorbing-powder removing step in which the adsorbing powder, which has adsorbed the organic chlorine compounds, is collected, thereby removing the adsorbing powder from the exhaust gas. | 10-30-2008 |
20100251890 | TREATMENT OF CONTAMINATED GASES - A contaminant is removed from a gas in a method in which the gas is contacted with a solvent for the contaminant, and the resultant solution is contacted with intercalated graphite onto which the contaminant is adsorbed. The solvent will normally comprise water, and may itself be a contaminated liquid. In a preferred method the solvent is in a reservoir with particulate intercalated graphite; the contaminated gas is delivered to the base of the reservoir; and the gas rises in the solvent mobilizing the intercalated graphite in the reservoir. | 10-07-2010 |
20110083555 | METHOD FOR DISSOLVING CARBON DIOXIDE FROM FLUE OR OTHER GAS AND FOR NEUTRALIZING THE SOLUTION OBTAINED - The object of the invention is a method for dissolving carbon dioxide from flue or other gas and for the neutralization of the solution obtained. The gas, in which the partial pressure of carbon dioxide is at least 0.4 bar, is led to a dissolution process, where the major part of the carbon dioxide is dissolved into a flow of water. The aqueous solution of carbon dioxide thus obtained is neutralized by passing it through a material containing feldspar minerals, at which time the hydrogen ions of said solution are replaced by ions of alkali or alkaline earth metals, and the aluminum in said material is converted into aluminum compounds that can be separated and utilized. | 04-14-2011 |
20130032029 | GAS PURIFICATION CONFIGURATIONS AND METHODS - Acid gas is removed from a feed gas in an absorber that produces a treated feed gas and a rich solvent. The treated feed gas is passed through an H2S scavenger bed, and the H2S scavenger bed is regenerated using H2S depleted acid gas flashed from the rich solvent. Most preferably, the off gas from the regenerating bed is injected into a formation. | 02-07-2013 |