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| Number | Title | Issue Date |
| 8173089 | Method for the separation of sour gas Method for separating a gaseous mixture that comprises as main ingredients H2S and CO2, wherein the gaseous mixture is contacted in a first device with a solvent comprising a weak Lewis-acid, wherein H2S is absorbed in the solvent an... | 05/08/2012 |
| 8080225 | Functional fluid and a process for the preparation of the functional fluid A functional fluid for the removal of contaminates such as but not limited to, acid causing components in gas, sulfur components and carbon oxides from fluid streams, and removal and treatment of NOX & SOX from post combustion emissions. Also d... | 12/20/2011 |
| 8052948 | COrecovery system and COrecovery method A CO2 recovery system includes an absorption tower and a regeneration tower. CO2 rich solution is produced in the absorption tower by absorbing CO2 from CO2-containing gas. The CO2 rich solution is conveyed to t... | 11/08/2011 |
| 7993616 | Methods and devices for reducing hazardous air pollutants The disclosure provides methods and systems for sequestering and/or reducing sulfur oxides, nitrogen oxides and/or carbon dioxide present in industrial effluent fluid streams. A solid particulate material comprising a slag component, a binder component (distinct fro... | 08/09/2011 |
| 7976803 | Plant and process for removing carbon dioxide from gas streams The present invention is based on the realization that the carbon dioxide component of industrial gas streams also containing steam can be processed so to utilize either as latent and/or sensible heat the heat available from the steam component to assist in separati... | 07/12/2011 |
| 7964169 | Molecular conversion processing of greenhouse gases of global warming effect and conversion units employing a solid particle trap Molecular conversion processing of greenhouse gases of global warming effect and conversion units employing a solid particle trap. This is an industrial process capable of changing the chemical composition of the greenhouse gases from any source, such as the interna... | 06/21/2011 |
| 7964168 | COcapture method with thermal integration of regenerator The CO2 contained in combustion fumes is captured by carrying out at least the following steps in combination: a) a fuel is burned, producing combustion fumes; b) the fumes are placed in contact with an ... | 06/21/2011 |
| 7951347 | Sour-gas sweetening solutions and methods A sour gas sweetening solution comprises an aqueous solution of a silicon-containing compound and an amine-containing compound. The silicon-containing compound is preferably maintained at a concentration less than or equal to 500 parts per million (“ppm”) more p... | 05/31/2011 |
| 7947239 | Carbon dioxide capture and mitigation of carbon dioxide emissions The present invention describes methods and systems for extracting, capturing, reducing, storing, sequestering, or disposing of carbon dioxide (CO2), particularly from the air. The CO2 extraction methods and systems involve the use of chemical ... | 05/24/2011 |
| 7935323 | System and method for hydrogen sulfide decontamination The invention describes a system and method for hydrogen sulfide decontamination of natural gas using a scavenging reagent. The system uses a scavenging reagent within two reactors wherein the consumption of scavenging reagent is optimized by the control of flow of ... | 05/03/2011 |
| 7927568 | Method of and apparatus for COcapture in oxy-combustion A method of and an apparatus for capturing CO2 from flue gas emanating from a carbonaceous fuel combusting power plant, which includes a source of oxygen and a combustion chamber for combusting the fuel with oxygen and thereby producing flue gas that incl... | 04/19/2011 |
| 7914758 | Captured COfrom atmospheric, industrial and vehicle combustion waste A CO2 control device and method for capturing CO2 from fluid flow, including: a flow-through apparatus and an CO2 absorbing filter treated with an alkaline material which is housed within the flow-through apparatus. The flow-through ... | 03/29/2011 |
| 7901646 | System and method for sulfur recovery Disclosed herein are various types of systems and methods for the efficient production of sulfur from a sulfur-laden gas. The system described herein includes a desulfurization unit, a regenerator receiving sulfurized mass from the desulfurization unit, a sulfur rec... | 03/08/2011 |
| 7892509 | System and method for recovering CO A CO2 recovery system includes an absorption tower that receives CO2-containing gas and CO2-absorbing solution, and causes the CO2-containing gas to come in contact with the CO2-absorbing solution to produce CO | 02/22/2011 |
| 7846407 | Self-concentrating absorbent for acid gas separation An process for efficiently deacidizing a gaseous mixture is described. The process utilizes a self-concentrating absorbent that absorbs an acid gas at reduced overall energy costs for the deacidizing operation. ... | 12/07/2010 |
| 7837964 | Method for removing sulfur compounds from gases containing hydrocarbons The present invention relates to processes for removing sulfur compounds from hydrocarbonaceous gases by using catalysts, with the exception of activated carbons and zeolites, which comprise copper, silver, zinc, molybdenum, iron, cobalt, nickel or mixtures thereof ... | 11/23/2010 |
| 7833502 | Integrated process for the production of hydrogen from hydrogen sulphide A process to efficiently remove sulfur compounds from a hydrocarbon stream in a refinery operation includes the production and recycle of hydrogen from the sulfur compounds. The sulfur compounds present in the hydrocarbon cut are converted to hydrogen sulphide which... | 11/16/2010 |
| 7815880 | Reduced-carbon footprint concrete compositions Reduced-carbon footprint concrete compositions, and methods for making and using the same, are provided. Aspects of the reduced-carbon footprint concrete compositions include CO2-sequestering carbonate compounds, which may be present in the hydraulic ceme... | 10/19/2010 |
| 7799299 | Capture and release of mixed acid gasses with binding organic liquids Reversible acid-gas binding organic liquid systems that permit separation and capture of one or more of several acid gases from a mixed gas stream, transport of the liquid, release of the acid gases from the ionic liquid and reuse of the liquid to bind more acid gas... | 09/21/2010 |
| 7780933 | Method of removing sulfur compounds from natural gas All sulfur compounds can be efficiently removed from natural gas that contains hydrogen sulfide and other sulfur compounds such as mercaptan without using physical absorption. The process comprises an absorption step of treating natural gas by means of a chemical ab... | 08/24/2010 |
| 7771684 | CO2-sequestering formed building materials CO2-sequestering formed building materials are provided. The building materials of the invention include a composition comprising a carbonate/bicarbonate component. Additional aspects of the invention include methods of making and using the CO2... | 08/10/2010 |
| 7758836 | 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 m... | 07/20/2010 |
| 7744838 | Functionalized ionic liquids, and methods of use thereof One aspect of the present invention relates to ionic liquids comprising a pendant Bronsted-acidic group, e.g., a sulfonic acid group. Another aspect of the present invention relates to the use of an ionic liquid comprising a pendant Bronsted-acidic group to catalyze... | 06/29/2010 |
| 7718151 | Methods and systems for deacidizing gaseous mixtures An improved process for deacidizing a gaseous mixture using phase enhanced gas-liquid absorption is described. The process utilizes a multiphasic absorbent that absorbs an acid gas at increased rate and leads to reduced overall energy costs for the deacidizing opera... | 05/18/2010 |
| 7674443 | Zero emission gasification, power generation, carbon oxides management and metallurgical reduction processes, apparatus, systems, and integration thereof A system involving a two-step gasification of a carbonaceous source to produce bulk hydrogen that avoids the early formation of CO2 and obviates the traditional water gas shift (WGSR) step, carbochlorination of a metallic ore the production of metals foun... | 03/09/2010 |
| 7632476 | Method of recovering carbon dioxide from a synthesis gas stream A method of recovering carbon dioxide from a synthesis gas stream generated within a synthesis gas facility. After the synthesis gas stream is passed through at least one process heat exchanger of the steam generation system located downstream of the water-gas shift... | 12/15/2009 |
| 7611685 | Method for hydrogen sulphide and/or mercaptans decomposition The inventive method for hydrogen sulphide and/or mercaptans decomposition consists in passing hydrogen sulphide and/or mercaptan-containing gas at a temperature less than 200° C. through a hard material layer (catalyst) which decomposes said hydrogen sulphide or m... | 11/03/2009 |
| 7604787 | Process for sequestering carbon dioxide and sulfur dioxide A process for sequestering carbon dioxide, which includes reacting a silicate based material with an acid to form a suspension, and combining the suspension with carbon dioxide to create active carbonation of the silicate-based material, and thereafter producing a m... | 10/20/2009 |
| 7585479 | Method of deacidizing a gas by partly neutralized multiamines A method of deacidizing a gaseous effluent including acid compounds includes the following stages: a) contacting the gaseous effluent with a first fraction of an absorbent solution containing reactive compounds with at least two amine functions, so as to obtain a ga... | 09/08/2009 |
| 7578986 | Fuel reformer catalyst and absorbent materials Materials that are useful for absorption enhanced reforming (AER) of a fuel, including absorbent materials such as Group 1 and Group 2 metal oxides that are adapted to absorb CO2 and catalyst materials such as reforming catalysts and water-gas shift catal... | 08/25/2009 |
| 7575732 | Process for treating a gas stream Processes for selectively removing sulfur-containing compounds from a gas are described herein. The processes generally include contacting a first gas including carbon dioxide and hydrogen sulfide with a scrub solution including ammonium bisulfite and ammonium sulfi... | 08/18/2009 |
| 7544340 | Method for creating a gas-liquid contact area A method for contacting a liquid with a gas in which the gas is introduced into a vessel containing at least one hollow fiber membrane having a plurality of porous hollow fibers. The liquid is introduced into a lumen of at least a portion of the plurality of porous ... | 06/09/2009 |
| 7541011 | Phase transitional absorption method The present invention is directed to an improved method and system for separating and purifying gas using gas-liquid absorption. According to this invention, the method is carried out in an absorber, where a liquid absorbent, a gas mixture containing a gas to be abs... | 06/02/2009 |
| 7514056 | Process and installation for the fractionation of air into specific gases In order to reduce incoming atmospheric carbon dioxide levels in compressed air prior to cryogenic distillation, a water spray cooling tower equipped with biocatalytic packing, or fed with absorptive reagents, is used to convert gaseous carbon dioxide into bicarbona... | 04/07/2009 |
| 7488463 | Carbon dioxide recovery and power generation The carbon dioxide recovery system includes a carbon dioxide absorption tower which absorbs and removes carbon dioxide from the combustion exhaust gas of a boiler by an absorption liquid, and a regeneration tower which heats and regenerates the loaded absorption liq... | 02/10/2009 |
| 7485275 | Method for removing acid gases and ammonia from a fluid stream A method is provided for removing acid gases and ammonia from a fluid stream in which a fluid stream comprising acid gases and ammonia is brought into contact with an aqueous absorption medium. The fluid stream is depleted of acid gases and ammonia and the absorptio... | 02/03/2009 |
| 7485274 | Apparatus and method for COrecovery An apparatus and a method for recovering CO2 are provided in which an energy efficiency is improved. The apparatus for recovering CO2 includes a flow path for returning extracted, temperature risen semi-lean solution into a regeneration tower w... | 02/03/2009 |
| 7481988 | Method for obtaining a high pressure acid gas stream by removal of the acid gases from a fluid stream A method for obtaining an acid gas stream having a pressure of from 3 to 30 bar by removal of acid gases from a fluid stream containing H2S, the molar fraction of H2S based on the total amount of acid gases being at least 50 mol %, the method c... | 01/27/2009 |
| 7442353 | Heat recirculating cooler for fluid stream pollutant removal A process by which heat is removed from a reactant fluid to reach the operating temperature of a known pollutant removal method and said heat is recirculated to raise the temperature of the product fluid. The process can be utilized whenever an intermediate step rea... | 10/28/2008 |
| 7438895 | Precipitated silica materials exhibiting high compatibility with cetylpyridinium chloride Precipitated silica comprising porous silica particles having a cumulative surface area for all pores having diameters greater than 500 Å of less than 6 m2/g, as measured by mercury intrusion, and a percentage cetylpyridinium chloride (% CPC) Compatibil... | 10/21/2008 |
