| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 095159000 | By stripping with gas | 45 |
| 20110232490 | CHEMICAL COMPOUNDS FOR THE REMOVAL OF CARBON DIOXIDE FROM GASES - A method and apparatus for utilizing an amine-based absorption compound for flue gas, or combustion gas, CO | 09-29-2011 |
| 20110239863 | Stripping column and process for extracting a component from a liquid medium - Stripping column and process for extracting a component from a liquid medium using a gas, the stripping column comprising a vertical column ( | 10-06-2011 |
| 20130269525 | Absorption Media for Scrubbing CO2 from a Gas Stream and Methods Using the Same - Absorption media for separating acidic gases such as C02 from a gas stream are disclosed. In some embodiments, the Absorption media include a solution of water, at least piperazine or a derivative of piperazine, and at least one alkali ion. The at least one alkali ion may be potassium. Methods and apparatus for separating acidic gases from a gas stream using such absorption media are also disclosed. | 10-17-2013 |
| 095160000 | And reduction of pressure (e.g., flashing, etc.) | 17 |
| 20080223214 | Method And Apparatus For Separating Gases - A method and apparatus for removing carbon dioxide from a synthesis gas stream containing hydrogen is disclosed. The method includes absorbing the carbon dioxide using a physical solvent under high pressure and then liberating the carbon dioxide in a series of expansion stages where the pressure on the solvent is reduced. The expansion ratio increases with each expansion stage. The apparatus includes expansion stages having throttling devices and expansion tanks operated at increasing expansion ratios. Carbon dioxide is liberated in this manner so as to minimize the energy required compress for transport via a pipe line for sequestration of the gas. Sequestration of the carbon dioxide is preferred to atmospheric venting to curb the release of greenhouse gases. | 09-18-2008 |
| 20160175762 | PROCESS AND APPARATUS FOR SCRUBBING MEDIUM REGENERATION IN A PHYSICAL GAS SCRUB | 06-23-2016 |
| 095161000 | And heating | 13 |
| 20090199711 | REMOVAL OF CARBON DIOXIDE FROM FLUE GASES - A description is given of a process for removing carbon dioxide from gas streams in which the partial pressure of the carbon dioxide is less than 200 mbar, in particular flue gases, the gas stream being contacted with a liquid absorption medium which comprises an aqueous solution (A) of a tertiary aliphatic alkanolamine and (B) an activator of the formula | 08-13-2009 |
| 20100101415 | METHOD FOR RECOVERY OF HIGH PURITY CARBON DIOXIDE - The present invention describes a method for recovery of high purity carbon dioxide, which is substantially free of nitrogen oxides. This high purity carbon dioxide is obtained by introducing into the method a step in which carbon dioxide absorbed in an absorbing agent is flashed. The present invention also discloses a plant for recovery of said high purity carbon dioxide comprising an absorption column, a flash column, a stripper column, and a down stream purification unit comprising a washing column, a dehydrator, a condenser and a distillation unit. | 04-29-2010 |
| 20100236407 | PROCESS FOR PRODUCING PURIFIED GAS FROM GAS COMPRISING H2S, CO2 AND HCN AND/OR COS - The invention provides a process for producing purified gas from feed gas comprising H | 09-23-2010 |
| 20110072968 | APPARATUS AND METHOD THEREOF - The invention relates to a gas liquid contactor and effluent cleaning system and method and more particularly to an array of nozzles configured to produce uniformly spaced flat liquid jets with reduced linear stability. An embodiment of the invention is directed towards a stability unit used with nozzles of a gas liquid contactor and/or an enhancer for stable jet formation, and more particularly to reducing the stability of liquid jets formed from nozzles of the gas liquid contactor. Another aspect of the invention relates to operating the apparatus at a condition that reduces the stability of liquid jets, e.g., a droplet generator apparatus. Yet another aspect of the invention relates to operation of the apparatus with an aqueous slurry. Still another aspect of the invention is directed towards to an apparatus for substantially separating at least two fluids. | 03-31-2011 |
| 20120279393 | CO<sb>2 </sb>REMOVAL FROM GASES BY MEANS OF AQUEOUS AMINE SOLUTIONS WITH THE ADDITION OF A STERICALLY HINDERED AMINE - A method for removing acid gases from a fluid flow using an absorbent including an aqueous solution with at least two different amines. An amine in a proportion of greater than 50 wt. % of the total amine amount in the aqueous solution is the first amine component in the aqueous solution, and a sterically hindered amine in a proportion of less than 50 wt. % is the second amine component in the aqueous solution. The fluid flow is brought into contact with the absorbent at a partial pressure of <200 mbar. | 11-08-2012 |
| 20130036911 | METHODS AND CONFIGURATIONS FOR H2S CONCENTRATION IN ACID GAS REMOVAL - A syngas treatment plant is configured to remove sulfurous compounds from syngas in a configuration having two flash stages for a physical solvent to so enrich the acid gas to at least 40 mol % H2S or higher as required by the Claus unit and to flash and recycle CO2 back to the syngas feed. Contemplated methods and configurations advantageously remove sulfur to less than 10 ppmv while increasing H2S selectivity at high pressure operation to thereby allow production of an H2S stream that is suitable as feed gas to a Claus plant. | 02-14-2013 |
| 20130055895 | REMOVAL OF CO2 FROM GASES OF LOW CO2 PARTIAL PRESSURES BY MEANS OF 1,2 DIAMINOPROPANE - Use of an absorbent for the removal of acid gases from a fluid stream, the absorbent consisting of an aqueous solution of 1,2 diaminopropane. | 03-07-2013 |
| 20140090558 | ABSORPTION MEDIUM AND METHOD FOR ABSORPTION OF AN ACID GAS FROM A GAS MIXTURE - An absorption medium which comprises water, an amine (A) of formula (I) | 04-03-2014 |
| 20150128802 | SYSTEM AND METHOD FOR NATURAL GAS DEHYDRATION - A natural gas dehydration system and method includes a contactor, a flash tank, and a still interconnected by a desiccant circulation system. A reboiler is coupled to the still and the flash tank to burn the flash gas from the flash tank and heat the desiccant. A secondary burner is associated with a vent stack of the reboiler to burn the flash gas from the flash tank when not firing the reboiler. | 05-14-2015 |
| 20150298052 | DEHYDRATION OF GASES WITH LIQUID DESICCANT - A method for drying natural gas or other industrial gases is disclosed in which such gas streams are dehydrated to very low water dew points using a dry liquid desiccant. The method comprises a continuous process with the liquid desiccant regenerated to by heating and the use of a stripping agent to provide two levels of regeneration which are used in sequential contacting of the gas stream. This disclosure reduces energy and capital costs relative to existing methods. | 10-22-2015 |
| 095162000 | Steam is stripping gas | 3 |
| 20100229723 | METHOD AND ABSORBENT COMPOSITION FOR RECOVERING A GASEOUS COMPONENT FROM A GAS STREAM - A method and apparatus for recovering a gaseous component from an incoming gas stream is described. The incoming gas stream is contacted with a lean aqueous absorbing medium to absorb at least a portion of the gaseous component from the incoming gas stream to form a lean treated gas stream and a rich aqueous absorbing medium. At least a portion of the gaseous component is desorbed from the rich aqueous absorbing medium at a temperature to form an overhead gas stream and a regenerated aqueous absorbing medium. At least a portion of the overhead gas stream is treated to recover a condensate stream. At least a portion of the condensate stream is used to form a heated stream. At least a portion of the heated stream is recycled back to the desorbing step. Novel absorbing medium compositions to recover carbon dioxide and/or hydrogen sulfide are also described. | 09-16-2010 |
| 20110088553 | METHOD FOR REGENERATION OF ABSORBENT - A method for regeneration of a rich absorbent having absorbed CO | 04-21-2011 |
| 20130305924 | METHOD OF RECOVERING CARBON DIOXIDE AND RECOVERY APPARATUS - A recovery apparatus of carbon dioxide comprises: an absorption column which brings a gas containing carbon dioxide into contact with an absorbing liquid and allows the absorbing liquid to absorb carbon dioxide; a regeneration column for regenerating the absorbing liquid, by causing the absorbing liquid having carbon dioxide absorbed in the absorption column to release carbon dioxide; a circulation system which circulates the absorbing liquid so that the absorbing liquid flowing from the absorption column returns to the absorption column through the regeneration column; and a steam supply system which generates steam available for a heat source that regenerates the absorbing liquid, using at least one of the absorbing liquid that returns to the absorption column by the circulation system and the absorbing liquid in the absorption column, and supplies the steam to the regeneration column. Absorption of carbon dioxide and release/regeneration are repeated, high temperature steam is generated from the absorbing liquid that returns to the absorption column and the absorbing liquid in the absorption column, and the steam is provided to the regeneration column to use as a heat source for regenerating the absorbing liquid. | 11-21-2013 |
| 095163000 | Liquid recycled or reused | 2 |
| 20090199712 | Method and Device for the Absorption of Acid Gas From Natural Gas - A method and a device for the absorption of pressurised natural gas containing at least hydrogen sulphide and carbon dioxide, using a physically active absorption agent. The natural gas containing acid gas is first conveyed to an absorption column, where it is directly contacted with the physical detergent, and the physical detergent absorbs the acid gas, leaving only a residue. The charged detergent is conveyed to a stripping column, the working pressure being further reduced. The residue of the released acid gas from the detergent is desorbed in said stripping column. The detergent thus regenerated is returned, at least in part, to the absorption column. The acid gas leaving the first separator is conveyed to another absorption column, in which the part of the released acid gas containing predominately hydrogen sulphide is reabsorbed with regenerated detergent and mixed with the charged detergent from the first separator. The remaining acid gas not reabsorbed from the absorption column downstream of the first separator, is recovered as stripping gas. Said stripping gas is used in the stripping column for removing the hydrogen sulphide from the detergent supplied to the stripping column. The finely regenerated solvent is divided into two partial flows, one of which is conveyed to the absorption column downstream of the first separator stage while the other is conveyed to the absorption column in the flow of natural gas. | 08-13-2009 |
| 20110308388 | ABSORPTION METHOD FOR RECOVERING GAS CONTAMINANTS AT HIGH PURITY - Solvent absorption processes for separating components of an impure feed gas are disclosed. The processes involve two stages of gas-liquid contacting, namely a first, absorption stage and a second, stripping stage. In the case of a carbon dioxide (CO | 12-22-2011 |
| 095165000 | And heating | 19 |
| 20100186590 | ABSORPTION MEDIUM FOR REMOVING ACID GASES WHICH COMPRISES AMINO ACID AND ACID PROMOTER - An absorption medium for removing acid gases from a fluid stream comprises an aqueous solution of a) of at least one metal salt of an aminocarboxylic acid, and b) of at least one acid promoter, wherein the molar ratio of b) to a) is in the range from 0.0005 to 1.0. The acid promoter is selected from mineral acids, carboxylic acids, sulfonic acids, organic phosphonic acids and partial esters thereof. The absorption medium, compared with absorption media based on amino acid salts, has a reduced regeneration energy requirement without significantly reducing the absorption capacity of the solution for acid gases. In a process for removing acid gases from the fluid stream, the fluid stream is brought into contact with the absorption medium. | 07-29-2010 |
| 20110023714 | METHOD AND DEVICE FOR REGENERATING THE LOADED DETERGENT IN A PHYSICAL GAS SCRUBBER - The invention relates to a process for scrubbing medium regeneration in a physical gas scrubbing, in which predominantly substances of a first type are separated from a laden scrubbing medium ( | 02-03-2011 |
| 20120006197 | METHOD FOR RECOVERY OF CARBON DIOXIDE FROM A GAS USING A PROCESS GAS HEATED REBOILER FOR CARBON DIOXIDE REMOVAL IN A STRIPPER - The present invention relates to a method for recovery of carbon dioxide from a gas (G | 01-12-2012 |
| 20120060689 | METHOD AND SYSTEM FOR REDUCING ENERGY REQUIREMENTS OF A CO2 CAPTURE SYSTEM - A method for reducing energy requirements of a CO | 03-15-2012 |
| 20130255495 | SYSTEM FOR RECOVERY OF AMMONIA FROM LEAN SOLUTION IN A CHILLED AMMONIA PROCESS UTILIZING RESIDUAL FLUE GAS - Disclosed herein is a method comprising contacting a residual flue gas stream with a lean solution stream in an appendix stripper; where the residual flue gas stream comprises nitrogen, oxygen and moisture; and where the lean solution stream comprises ammonium, ammonium carbonate, ammonium bicarbonate and ammonium sulfate; forming a vapor phase that comprises ammonia vapor, water vapor, carbon dioxide and nitrogen; forming a liquid phase that comprises water, ammonium sulfate and ammonia; discharging the vapor phase to a capture system; and discharging the liquid phase to a direct contact cooler. | 10-03-2013 |
| 095166000 | Liquid recycled or reused | 7 |
| 20100095845 | VENT GAS ABSORPTION SYSTEM AND METHOD FOR RECOVERY VOCs - The present invention relates to a vent gas adsorption system and a method of recovering volatile organic compounds (VOCs), more particularly to a vent gas adsorption system devised to effectively adsorb VOCs included in the vent gas and reduce VOC content of the vent gas, and a method of recovering VOCs. | 04-22-2010 |
| 20110308389 | METHOD AND PLANT FOR AMINE EMISSION CONTROL - A method for eliminating or substantially reducing emission of amines (amineslip) and alkaline degradation products to the atmosphere from a plant for CO | 12-22-2011 |
| 20120160101 | METHOD FOR PURIFYING GASES AND OBTAINING ACID GASES - The invention relates to a method for removing sour gases from raw gases ( | 06-28-2012 |
| 20140366727 | VENT GAS ABSORPTION SYSTEM AND METHOD FOR RECOVERY VOCs - The present invention relates to a vent gas adsorption system and a method of recovering volatile organic compounds (VOCs), more particularly to a vent gas adsorption system devised to effectively adsorb VOCs included in the vent gas and reduce VOC content of the vent gas, and a method of recovering VOCs. | 12-18-2014 |
| 20150027310 | AMMONIA STRIPPER FOR A CARBON CAPTURE SYSTEM FOR REDUCTION OF ENERGY CONSUMPTION - A carbon capture system, such as a chilled ammonia process, is provided that includes with a cooling system, a carbon dioxide absorption system and an ammonia absorption system. The ammonia absorption system includes an absorber column to receive carbon dioxide lean gas stream having ammonia and to receive an absorbent, wherein the absorbent absorbs ammonia from the carbon dioxide lean gas stream to provide an ammonia reduced gas stream and an ammonia rich absorbent. Further, an ammonia stripper is provided to receive the ammonia rich absorbent and to receive a portion of the gas stream, wherein the gas stream flows through the ammonia stripper to heat the ammonia rich absorbent to release the ammonia therefrom and provide an ammonia rich gas stream and an ammonia reduced absorbent. | 01-29-2015 |
| 20150321137 | HEAT RECOVERY IN ABSORPTION AND DESORPTION PROCESSES USING A REDUCED HEAT EXCHANGE SURFACE - A process for the removal of components to be separated from technical gases by way of an absorption and desorption processes using liquid absorbents, at least part of the laden solution leaving the absorption device being branched off before being heated and fed to the top of the heat transfer section. This laden part-stream being heated by the steam rising from the bottom part of the desorption device via heat exchange in the heat transfer section. The residual stream of cold, laden solution leaving the absorption device being pre-heated via heat exchange with the hot, regenerated solution leaving the desorption device, with the heat exchange being configured such that the total heat exchange surface required for the absorption and desorption process is reduced. | 11-12-2015 |
| 20160184768 | TREATMENT OF NATURAL GAS TO REMOVE CONTAMINANTS - A method of treating natural gas to remove contaminants is described. An input natural gas is mixed with water causing formation of CO | 06-30-2016 |
| 095167000 | Vaporized component of contact liquid is stripping gas | 1 |
| 20160193560 | OPTIMIZATION OF STRIPPER FEED CONFIGURATION FOR RICH/LEAN SOLVENT REGENERATION | 07-07-2016 |
| 095168000 | Steam is stripping gas | 6 |
| 20110100216 | GAS STREAM PROCESSING - A power generation plant ( | 05-05-2011 |
| 20110239864 | Process For Utilizing The Vented Gas Mixture From A Deaerator Associated With A Syngas Production Unit And Plant For Its Implementation - The present invention relates to a process and a plant for the treatment of the vented gas mixture from a deaerator of a steam production process associated with a hydrocarbon-reforming syngas production process. | 10-06-2011 |
| 20120210874 | CARBON DIOXIDE RECOVERY SYSTEM AND METHOD - The carbon dioxide recovery system includes: a first steam line | 08-23-2012 |
| 20130118350 | Method and Device for Separating Acid Gases from a Gas Mixture - The invention is directed to a method for separating acid gases from a gas mixture in which the gas mixture is contacted with an absorption medium which comprises water and at least one amine and has a phase-separation temperature in the range from 0 to 130° C. In addition, the invention is directed to a device which can be used for carrying out this method. | 05-16-2013 |
| 20130152791 | PROCESS FOR CATALYTIC CRACKING ASSOCIATED WITH AN AMINE TREATMENT UNIT WITH IMPROVED CO2 BALANCE - The present invention describes a process for catalytic cracking associated with a unit for amine treatment of regeneration fumes from the catalytic cracking unit, which process uses at least one counter-pressure turbine to operate the cracked gas compressor and/or the regenerative air blower which can be used to improve the CO | 06-20-2013 |
| 20140096682 | FLUORINATED SURFACTANTS AND STABILIZATION OF POLYTETRAFLUOROETHYLENE (PTFE) PARTICLES IN HOLLOW FIBER SPIN SOLUTIONS - Methods and apparatus relate to recovery of carbon dioxide and/or hydrogen sulfide from a gas mixture. Separating of the carbon dioxide, for example, from the gas mixture utilizes a liquid sorbent for the carbon dioxide. The liquid sorbent contacts the gas mixture for transfer of the carbon dioxide from the gas mixture to the liquid sorbent. Contacting of the sorbent with the gas mixture and/or desorption of the carbon dioxide from the liquid sorbent utilize hollow fiber contactors that have permeable walls and incorporate particles distinct from a remainder of the walls to influence wetting properties of the contactors. Polytetrafluoroethylene particles may be homogenously disposed throughout hollow fiber contactors to influence wetting properties of the contactors. | 04-10-2014 |
| 095169000 | Liquid recycled or reused | 4 |
| 20090211446 | Acidic Gas Capture by Diamines - Compositions and methods related to the removal of acidic gas. In particular, the present disclosure relates to a composition and method for the removal of acidic gas from a gas mixture using a solvent comprising a diamine (e.g., piperazine) and carbon dioxide. One example of a method may involve a method for removing acidic gas comprising contacting a gas mixture having an acidic gas with a solvent, wherein the solvent comprises piperazine in an amount of from about 4 to about 20 moles/kg of water, and carbon dioxide in an amount of from about 0.3 to about 0.9 moles per mole of piperazine | 08-27-2009 |
| 20110132193 | MAINTAINING LOWERED CO IN A CO2 PRODUCT STREAM IN A PROCESS FOR TREATING SYNTHESIS GAS - The invention involves a process for maintaining a low level of carbon monoxide in a carbon dioxide product stream and also for keeping the carbon monoxide out of the fully shifted synthesis gas. The overall process is a process for treating both fully shifted and partially shifted or unshifted synthesis gas. The carbon monoxide is separately removed by a carbon monoxide stripping column and returned to the partially shifted or unshifted synthesis gas which can then undergo a shift reaction to convert the carbon monoxide to carbon dioxide. | 06-09-2011 |
| 20140007768 | METHOD AND APPARATUS FOR SEPARATING MIXED GAS FEED - The invention is directed to a method for separating gases in a mixed gas feed stream, and to an apparatus for carrying out said method. The method of the invention comprises: i) contacting the mixed gas feed stream with an absorption liquid in an absorption column at a pressure of 1 bar or more, said absorption liquid being selective for absorption of one or more gases in the mixed gas feed stream so that part of the gas in the mixed gas feed stream is absorbed by the absorption liquid resulting in a rich absorption liquid; ii) regenerating at least part of the absorption liquid by contacting the rich absorption liquid with a desorption membrane, wherein the pressure at the retentate side of the desorption membrane is at least 1 bar higher than the pressure at the permeate side of the desorption membrane so that at least part of the absorbed gas desorbs from the rich absorption liquid and permeates through the desorption membrane thereby forming a lean absorption liquid; and iii) recycling at least part of the lean absorption liquid to step i) for contacting with the mixed gas feed stream. | 01-09-2014 |
| 20160199773 | METHOD AND DEVICE FOR SOUR GAS SCRUBBING | 07-14-2016 |
| 095170000 | Air is stripping gas | 1 |
| 20160025360 | SYSTEM AND METHOD FOR CONTINUOUSLY REMOVING A PARTICULAR TYPE OF GAS MOLECULES FROM A GAS STREAM - A method for continuously removing a particular type of gas molecules (“gas molecules”) from a gas stream includes selecting a liquid having an affinity for the gas molecules to be removed, and providing the selected liquid to each of a first and second mat, each mat formed from a plurality of fibers having the ability to retain the selected liquid within longitudinally extending channels having longitudinally extending openings against moving into the space between the individual fibers, the mats in fluid communication therebetween with the selected liquid. The method includes directing the gas stream through a portion of the first mat into contact with the selected liquid along the longitudinally extending openings whereby the selected liquid absorbs the gas molecules, and directing a second gas through a portion of the second mat so that the gas molecules, absorbed by and disbursed throughout the selected liquid, are stripped and carried away. | 01-28-2016 |
| 095171000 | Inert stripping gas | 1 |
| 20130139687 | METHOD FOR THE REMOVAL OF ACID GASES FROM A RESIDUAL GAS OF AN ALCOHOL SYNTHESIS - The invention relates to a method for separating off carbon dioxide from a gas mixture containing hydrogen, carbon monoxide and carbon dioxide, which gas mixture is produced as residual gas in an alcohol synthesis. The residual gas is subjected to a physical gas scrubbing in which carbon dioxide is scrubbed out of the residual gas in an absorption step by means of a low-temperature alcohol used as the scrubbing medium. | 06-06-2013 |
