Abstract: A method and system to treat cooking emissions (e.g., smoke) employs a nanosecond high voltage pulse generator and a transient pulsed plasma reactor. The system is used in a scheme that substantially reduces particulate matter produced in commercial charbroiling processes (e.g., cooking of hamburger meat). Both a reduction in the size distribution and total particulate mass is achieved using the method and system described herein.

Abstract: A ventilation type air cleaner includes a housing having a central rotating shaft including a purification part, a washing part, and a sterilization part in a circumferential direction with respect to the central rotating shaft, a rotating unit installed to be rotatable about the central rotating shaft as a rotation center in the housing, a filter assembly detachably coupled to the rotating unit and configured to sequentially pass through the purification part, the washing part, and the sterilization part according to rotation of the rotating unit, an intake duct connected to the housing and configured to guide a flow of air introduced to the purification part, and an exhaust duct connected to the housing and configured to guide a flow of air discharged from the purification part.

Abstract: A dehydration device removes moisture from a process gas compressed by a compressor, and includes a contactor that causes a dehydration solvent to absorb the moisture, a still column that separates the moisture from the dehydration solvent, a carrying line that carries the dehydration solvent from the contactor to the still column, a dehydration solvent conveying pump, a bypass line that couples the carrying lines upstream and downstream of the dehydration solvent conveying pump, a first on-off valve disposed in the bypass line, and a control device. In a case where the pressure detected by a pressure sensor is lower than a first predetermined pressure, the control device closes the first on-off valve and causes the conveying pump to operate, whereas in a case where the pressure detected by the pressure sensor is equal to or higher than the first predetermined pressure, the control device opens the first on-off valve and causes the conveying pump to stop.

Abstract: A method for separating carbon dioxide from a gas stream, in particular from a flue gas stream, wherein, a gas stream is brought into contact with a washing medium in an absorber of a separation device and the carbon dioxide contained in the gas stream is separated; the charged washing medium is supplied to a desorber of the separation device to release the carbon dioxide; a vapor stream is removed from the desorber and is supplied to a cooling unit to form a condensate; degradation products, in particular nitrosamines, contained in at least a partial stream of the condensate are photolytically decomposed to decomposition products; at least the decomposition products, in particular nitrites and amines, are removed; and at least a partial stream of the condensate is returned to the desorber. A corresponding separation device separates carbon dioxide from a gas stream.

Abstract: A CO2 recovery unit includes a CO2-absorber that causes a gas containing CO2 to contact a CO2-absorbing solution and that causes the CO2 in the gas to be absorbed into the CO2-absorbing solution; a CO2-regenerator that heats the CO2-absorbing solution, releases the CO2 from the CO2-absorbing solution, and regenerates the CO2-absorbing solution; and a CO2 recovery amount controller that: calculates a computed target value of a CO2 recovery amount and a computed target value of a CO2 recovery rate based on a set value of the CO2 recovery rate, actual measured values of CO2 concentration, gas flow rate, and temperature of the gas, and calculates a maximum value of the CO2 recovery amount in the CO2-absorber and a maximum value of the CO2 recovery amount in the CO2-regenerator.

Abstract: A carbon dioxide separation process for a fossil-fueled power station process, including an absorption process and a desorption process, the carbon dioxide separation process includes when a special operating state which deviates from the normal operating state, opening a first bypass so that regenerated solvent from the desorption process is at least partially fed back again into the desorption process; and opening a second bypass so that a laden solvent from the absorption process is at least partially fed back again into the absorption process.

Abstract: A process for separating off acid gases from a water-comprising fluid stream wherein the water-comprising fluid stream is contacted in an absorption zone with an absorbent, producing a deacidified fluid stream and an acid gas-loaded absorbent; the deacidified fluid stream is contacted in a scrubbing zone with an aqueous scrubbing liquid, producing a deaminated, deacidified fluid stream and an amine-loaded scrubbing liquid which is cooled, producing an absorber top condensate; the loaded absorbent is passed into a desorption zone producing a regenerated absorbent and desorbed acid gases; the regenerated absorbent is returned to the absorption zone in order to form an absorbent circuit, to which the amine-loaded scrubbing liquid and the absorber top condensate are introduced; and the desorbed acid gases are conducted through an enrichment zone and the acid gases exiting at the top of the enrichment zone are cooled, producing a desorber top condensate.

Abstract: A gas-liquid contactor includes a plurality of spray nozzles provided in a CO2 absorber, for spraying a CO2 absorbent downward into the CO2 absorber in which flue gas drifts upward and passes so as to bring flue gas drifting upward and the CO2 absorbent into contact with each other. The spray nozzle includes a wall-surface dedicated nozzle provided along a wall surface in the CO2 absorber and a liquid dispersion nozzle provided inside of the wall-surface dedicated nozzle in the CO2 absorber.

Abstract: A CO2 recovery unit 10A according to a first embodiment has a CO2 absorber that removes CO2 in flue gas by bringing the flue gas containing CO2 into contact with a CO2 absorbent 12, and a regenerator 15 that diffuses CO2 in a rich solution 14 having absorbed CO2 in the CO2 absorber. The CO2 recovery unit 10A includes a first compressor 29-1 to a fourth compressor 29-4 that compress CO2 gas 16 discharged from the regenerator 15, a dehydrating column 33 that reduces moisture in the CO2 gas 16 by bringing the CO2 gas 16 into contact with a dehydrating agent 32, a combustion removal unit 41 that removes the dehydrating agent 32 mixed in the CO2 gas 16 in the dehydrating column 33, and a heat exchanger 42 that performs heat exchange between the CO2 gas 16 discharged from the third compressor 29-3 and the CO2 gas 16 discharged from the dehydrating column 33.

Abstract: A separation apparatus for carbon dioxide is provided which includes an absorption unit for absorbing flue gas from a fossil-fueled power station, a desorption unit and a heat exchanger which on the primary feed side is connected via an inlet-side feedback line to the desorption unit, and on the discharge side is connected via an outlet-side feedback line to the absorption unit. On the secondary feed side, the heat exchanger is connected via an inlet-side feed line to the absorption unit, and on the discharge side is connected via an outlet-side feed line to the desorption unit. A first bypass line connects the inlet-side feedback line to the outlet-side feed line so that a mostly closed first circuit with the desorption unit is formed, and a second bypass line connects the inlet-side feed line to the outlet-side feedback line so a mostly closed second circuit with the absorption unit is formed.

Abstract: A domestic appliance filter for use in a laundry treatment device includes a basic filter material with a hydrophobic coating for filtering out matter from a process water duct or a process air duct. The basic filter material includes a material which is resistant to temperatures of 160° C. or more and the hydrophobic coating on the basic filter material effects a surface energy of less than 35 mN/m.

Abstract: An emission gas treatment apparatus recovers a recycle feed containing boron from emission gas discharged by a glass melting furnace. The apparatus includes a collection device for collecting a component containing boron from the emission gas by a wet process to obtain a collected liquid, a first filter for separating the collected liquid into a solid and a liquid, and an ion-exchange resin for forming a boron solution by removing an impurity from an extracted liquid obtained in the first filter. The apparatus also includes a mixing tank for mixing an extracted solid obtained in the first filter in the boron solution to form an extracted solid-containing solution, a second filter for separating the extracted solid-containing solution into a solid and a liquid, and a vacuum dryer for recovering the recycle feed from an extracted solid obtained in the second filter.

Abstract: To include a boiler 11 that burns fuel F, an air heater 13 that recovers heat of flue gas 18 from the boiler 11, a first precipitator 14 that reduces dust in the flue gas 18 after heat recovery, a desulfurizer 15 that reduces sulfur oxides in the flue gas 18 after dust reduction by an absorbent, a dewaterer 32 that reduces gypsum 31 from desulfurization discharged water 30 discharged from the desulfurizer 15, a spray drying device 34 including an atomizer that atomizes a dewatering filtration fluid 33 discharged from the dewaterer 32, and a flue-gas introducing line L11 that introduces a part of the flue gas 18 into the spray drying device 34.

Abstract: A device and method for separating off carbon dioxide is provided, including an absorption unit, desorption unit assigned thereto and a separation unit for separating off salts from a scrubbing solution. The absorption and desorption units are connected to each other via a first conduit for a regenerated scrubbing solution and a second conduit for a loaded scrubbing solution. The separation unit includes a crystallizer for forming salt crystals and a first separator unit on the downstream side for separating off salt crystals. A separation unit is provided for separating off salts from a scrubbing solution, having a crystallizer and a first separator unit downstream thereof. The crystallizer has a crystallization chamber for forming salt crystals and a countercurrent classifier for separating salt crystals according to particle size. A first branch conduit is connected to the crystallization chamber, which opens out into the countercurrent classifier via a second separator unit.

Abstract: A gas scrubber, equipped with heat exchanger surfaces constructed of thermoplates, suitable for cooling and cleaning a hot gas by avoiding an excessive thermal load of the washing liquid.

Abstract: A carbon dioxide recovery unit is provided with: an absorption tower for bringing an exhaust gas into contact with a CO2 absorbing liquid to thereby absorb and recover CO2 from the exhaust gas; a regeneration tower for taking out the CO2 from the CO2 absorbing liquid; a CO2 delivery line L3 for delivering the taken-out CO2 to a storage process; and a CO2 return line L5 for returning the taken-out CO2 to the absorption tower. When a CO2 recovery unit and a CO2 compressing device are activated, if a storage process side has some kind of trouble and cannot receive the CO2, a destination part to which the CO2 is delivered from the regeneration tower is switched from the CO2 delivery line L3 to the CO2 return line L5, whereby the CO2 gas is mixed with the exhaust gas in the absorption tower.

Abstract: An apparatus that separates and recovers CO2 from a CO2 absorbent that has absorbed CO2 includes a regeneration tower configured to apply heat to the CO2 absorbent that has absorbed CO2, configured to separate and remove CO2 from the CO2 absorbent, configured to exhaust CO2 gas, and configured to regenerate the CO2 absorbent, a plurality of compressors configured to compress the CO2 gas exhausted from the regeneration tower, a dehydration device provided between the plurality of compressors and configured to remove moisture from the compressed CO2, and a line configured to supply air or N2 gas into the dehydration device to preliminarily operate the dehydration device until a stable state is achieved before starting the compressor.

Abstract: In one embodiment, a gas purification system is provided. The system includes a first section having a first solvent path and a first gas path. The first gas path is configured to flow a stripping gas to remove hydrogen sulfide (H2S) and carbon dioxide (CO2) from the first solvent path in a first vessel to produce a first gas mixture. The system also includes a second section having a second solvent path. The second solvent path is configured to flow a second solvent mixture to remove H2S from the first gas mixture and CO2 from the second solvent mixture within a second vessel. The second solvent mixture has a solvent saturated in CO2 at a first pressure, the second vessel is operated at a second pressure, and the first and second pressures are within approximately 20% of one another.

Abstract: A method for removal of a compound from a crude hydrocarbon gas stream to be obtained from a sub-sea well is disclosed. The method comprises bringing the crude hydrocarbon gas stream in contact with a treatment solution comprising an absorbent at least partly selective to the compound to be removed, thereby obtaining a rich treatment solution and a compound depleted gas stream, regenerating the treatment solution comprising the absorbent by desorbing the compound from the rich treatment solution, thereby obtaining a compound stream.

Abstract: The present invention is related to an apparatus and a method for converting gas into fuel. The apparatus for converting gas into fuel in accordance with an embodiment of the present invention can include: a first gas processing unit discharging first fuel gas by removing hydrogen sulfide in the raw gas by spraying a solution; a second gas processing unit discharging second fuel gas by removing moisture in the first fuel gas; a third gas processing unit discharging third fuel gas by removing hydrogen sulfide remaining in the second fuel gas; and a solution reservoir supplied with the solution from at least one of the second gas processing unit and the third gas processing unit and storing the solution.

Abstract: A target treatment volume for exhaust gas to be treated is specified based on the product of an actual flow rate of exhaust gas discharged toward a CO2 recovery device, and an exhaust gas treatment rate RG1, and a target recovery volume for CO2 to be recovered by the recovery device is specified based on the product of an actual volume of CO2 contained in the exhaust gas discharged from the generation source of the exhaust gas, the exhaust gas treatment rate RG1, and a CO2 recovery rate RCO2.

Abstract: Carbon dioxide is removed from a source gas stream by admission to a vessel containing a quantity of a material preferentially absorbing carbon dioxide. The carbon dioxide content of an escaping gas stream is monitored. When the carbon dioxide content of the escaping gas stream indicates that absorbent is saturated with carbon dioxide, an inlet valve is closed, and a vacuum applied, causing the carbon dioxide to be desorbed for collection.

Abstract: A method and system for removing carbon dioxide from flue gas emitted by a fossil fuel operated power plant. In the method and system, carbon dioxide is removed from the flue gas by an absorption process using a scrubbing liquid. The charged scrubbing liquid is regenerated in a desorption process. At least some of the energy required for the regeneration process is fed using low-pressure steam that is withdrawn from the steam-water circuit of the power plant before entering a low-pressure steam turbine. The low-pressure steam is fed to an intermediate steam turbine. The low-pressure steam is expanded to a discharge pressure of less than 3.5 bar and is then fed to the desorption process. The pressure for the desorption process is adjusted by a regulation device in accordance with the discharge pressure from the intermediate steam turbine.

Abstract: A system for treating an effluent stream including a carbon capture system utilizing an amine-containing solution to remove carbon dioxide from a flue gas stream, the carbon capture system generating an effluent stream comprising degradation products generated by the amine-containing solution; storage means for storing at least a portion of the effluent stream, the storage means being fluidly coupled to the carbon capture system. The system also including at least one nozzle connected to a combustion zone of a boiler, the at least one nozzle being fluidly coupled to the storage means for providing at least a portion of the effluent stream present in the storage means to the combustion zone of the boiler through the at least one nozzle, wherein the effluent stream provided to the combustion zone is co-incinerated with a fuel in the combustion zone.

Abstract: A process and system for separating CO2 from a flue gas stream is disclosed. The process involves (a) contacting a flue gas stream containing water vapor and CO2 with an ionic absorbent under absorption conditions to absorb at least a portion of the CO2 from the flue gas stream and form a CO2-absorbent complex; wherein the ionic absorbent comprises a cation and an anion comprising an amine moiety; and (b) recovering a gaseous product having a reduced CO2 content.

Abstract: Impure carbon dioxide (“CO2”) comprising a first contaminant selected from the group consisting of oxygen (“O2”) and carbon monoxide (“CO”) is purified by separating expanded impure carbon dioxide liquid in a mass transfer separation column system. The impure carbon dioxide may be derived from, for example, flue gas from an oxyfuel combustion process or waste gas from a hydrogen (“H2”) PSA system.

Abstract: Provided are gas processing facilities for the separation of components in a gas stream and methods of using the same. The facility includes one or more co-current contactors. Each contactor includes a mass transfer vessel having a mixing section. The mixing section receives a gas stream and a liquid contacting stream. The mixing section mixes theses two streams and releases a two-phase flow. Each contactor also includes a separator that receives the two-phase fluid stream from the mass transfer vessel in-line, and then separates a vapor phase from a liquid phase. The separator has a gas-phase outlet configured to release the vapor phase as a treated gas stream, and a liquid-phase outlet configured to release the liquid phase as a loaded treating solution. The contactors may be used to remove water or other contaminant from a natural gas stream or other gas stream.

Abstract: The present invention provides strategies for reducing the nitrosamine content of amine compositions that are contaminated with one or more nitrosamines. The present invention is based apart upon the appreciation that irradiating contaminated amine compositions with a suitable fluence of electromagnetic energy, such as ultraviolet energy, is able to selectively decompose the nitrosamine content relative to the amine content. This allows the amine content of the treated compositions to be preserved. As a consequence, the principles of the present invention are particularly useful for regenerating amine absorbents. Reducing the nitrosamine content so easily also facilitates disposal, further processing, or other desired handling of amine compositions.

Abstract: An exhaust gas treatment system comprising: a CO2 chemical absorption equipment comprising an absorption column which absorbs carbon dioxide (CO2) in a combustion exhaust gas discharged from a combustion device with the use of an absorbing solution comprising an amine compound as a main component and a regeneration column which regenerates the absorbing solution by desorbing CO2 from the absorbing solution which absorbed CO2; a flash tank which depressurizes the absorbing solution withdrawn from a lower part of the regeneration column to flash-evaporate the absorbing solution; a vapor recompression equipment which compresses the vapor generated by the flash tank; a temperature control device which adjusts the vapor compressed by the vapor recompression equipment to be within a predetermined temperature; and a piping for feeding the vapor adjusted to the predetermined temperature by the temperature control device to the regeneration column.

Abstract: SOx removal equipment for reducing sulfur oxides from flue gas from a boiler, a cooler provided on a downstream side of the SOx removal equipment, for reducing the sulfur oxides that remain in the flue gas and decrease a gas temperature, CO2 recovery equipment including an absorber for bringing CO2 in the flue gas into contact with a CO2 absorption liquid to be reduced, and a regenerator for causing the CO2 absorption liquid to emit CO2 to recover CO2 and regenerate the CO2 absorption liquid, a heat exchanger which is provided on an inlet passage side of the electric dust collector, for decreasing a temperature of the flue gas are included, and a mist generation material in the flue gas is converted from a gas state to a mist state to cause particulates in the flue gas to arrest and reduce the mist generation material in the mist state.

Abstract: Systems and methods for separating CO2 and H2S from a natural gas stream are provided herein. The system includes a first loop of co-current contacting systems configured to remove H2S and CO2 from a natural gas stream and a second loop of co-current contacting systems configured to remove the H2S from the CO2.

Abstract: To include a boiler 11 that burns fuel F, an air heater 13 that recovers heat of flue gas 18 from the boiler 11, a first precipitator 14 that reduces dust in the flue gas 18 after heat recovery, a desulfurizer 15 that reduces sulfur oxides in the flue gas 18 after dust reduction by an absorbent, a dewaterer 32 that reduces gypsum 31 from desulfurization discharged water 30 discharged from the desulfurizer 15, a spray drying device 34 including an atomizer that atomizes a dewatering filtration fluid 33 discharged from the dewaterer 32, and a flue-gas introducing line L11 that introduces a part of the flue gas 18 into the spray drying device 34.

Abstract: A method for removing carbon dioxide from methane-containing crude gases, especially biogas, by pressure scrubbing, using a physical solvent, includes circulating the contaminated scrubbing solution after regeneration. A plant suitable for carrying out the method considerably reduces the methane loss which arises through methane slippage and improves the overall energy balance of the method. Laden scrubbing solution obtained from the pressure scrubbing is treated at least in one flash stage before the first stripping stage. In addition, a nitrogen, oxygen, carbon dioxide and methane-containing gas mixture drawn off from the flash stage is cleaned in a scrubbing stage by purified scrubbing solution drawn off from the second stripping stage and supplied in countercurrent, forming a high-purity methane gas.

Abstract: 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.

Abstract: A method and system for transporting and processing sour gas are provided. The method includes collecting a sour gas at a collection location, which has an associated sweetening device, and delivering a solvent to the sweetening device from a regeneration device remote therefrom. The sour gas is treated at the collection location with the solvent in the associated sweetening device to form a sweetened gas and a sour gas-rich solvent. The sweetened gas is transported from the sweetening device to a gas processing plant remote therefrom, and the sour gas-rich solvent from the sweetening device is delivered to the regeneration device for regeneration therein.

Abstract: A slug-containing vapor recovery system wherein pressure and/or fluid level sensors are provided which monitor for conditions caused by the entry of a slug of hydrocarbon liquid, including that caused by a plunger-lift system. The system can be configured to accommodate virtually any anticipated slug-events.

Abstract: In one embodiment, a carbon dioxide capturing system includes an absorption tower configured to bring a treatment target gas containing carbon dioxide into contact with an absorption liquid, and to discharge the absorption liquid having absorbed the carbon dioxide. The system further includes a regeneration tower configured to make the absorption liquid discharged from the absorption tower dissipate the carbon dioxide, and to discharge the absorption liquid having dissipated the carbon dioxide. The system further includes a treatment target gas line configured to introduce the treatment target gas into the absorption tower, a first introduction module configured to introduce a first gas having a higher carbon dioxide concentration than the treatment target gas into the treatment target gas line, and a second introduction module configured to introduce a second gas having a lower carbon dioxide concentration than the treatment target gas into the treatment target gas line.

Abstract: A CO2 recovery system includes a CO2 absorption tower for absorbing CO2 in combustion exhaust gas into an absorbing solution by bringing the combustion exhaust gas into contact with the absorbing solution that absorbs CO2; a dissolved oxygen removing device that uses at least one device of a device for blowing bubbling gas into the rich absorbing solution into which CO2 has been absorbed, a device for applying ultrasonic oscillation, and a device for heating the rich absorbing solution; a bubble removing device that turns the rich absorbing solution into which CO2 has been absorbed in the CO2 absorption tower into a swirling flow or agitates the rich absorbing solution; and a regeneration tower that regenerates the absorbing solution by releasing CO2 from the absorbing solution from which oxygen has been removed by the dissolved oxygen removing device and the bubble removing device and obtains CO2 gas.

Abstract: The invention relates to a scrubber unit arrangement for cleaning exhaust gas. The arrangement comprises a scrubber unit for receiving a flow of exhaust gas, a pump means for supplying a scrubbing medium to the scrubber unit from a source of scrubbing medium, and means for discharging scrubbing medium from the scrubber unit. In order to provide an energy efficient scrubbing process, the scrubber unit arrangement further comprises a turbine unit, which is arranged to receive discharged scrubbing medium from the scrubber unit. Scrubbed exhaust gas is separately discharged from the scrubber unit.

Abstract: An auxiliary sour gas treatment system for treating a stream of sour gas during a time wherein a primary gas treatment facility is unavailable, malfunctioning, inadequate or inoperable. The auxiliary sour gas treatment system comprises a lean solvent storage system to store an appreciable volume of a regenerable lean solvent available on demand. A scrubber to treat an influent supply of the sour gas by contacting the sour gas and the lean solvent which chemically or physically binds the contaminants in the sour gas resulting in a cleaned gas suitable for disposal or use as a fuel, and the solvent in an enriched state that contains the removed contaminants. The enriched solvent resulting from treatment may be stored indefinitely in a rich solvent storage system and then regenerated at any convenient time and at any convenient rate or place to remove the contaminants from the rich solvent.

Abstract: A system and method for efficiently removing hydrogen sulfide from a natural gas feed stream to produce a Stinson Process feed stream and an acid gas stream. A first solvent separates the majority of the carbon dioxide and hydrocarbons from the hydrogen sulfide in the natural gas feed to produce the Stinson feed stream. By removing the majority of the hydrogen sulfide prior to feeding the Stinson Process, a carbon dioxide stream suitable for use in flooding operations may be produced with the Stinson Process. The system and method also increase the concentration of hydrogen sulfide in the acid gas stream, making it suitable for sulfur recovery operations. The system and method are particularly suitable for natural gas feed streams containing 0.5%-20% hydrogen sulfide and at least 20% carbon dioxide. Operation in an anhydrous mode with the addition of nitrogen aids in solvent recovery for recycling.

Abstract: The disclosure relates to a process for treating a gas mixture containing carbon dioxide and hydrogen sulphide, including the following steps: deacidificating the gas mixture by bringing the gas mixture into contact with a first lean absorbent solution stream, delivering a deacidified gas mixture, and a first rich absorbent solution stream; regenerating the first rich absorbent solution stream, delivering the first lean absorbent solution stream and a sour gas stream; distillating the sour gas stream, delivering a first carbon-dioxide-rich stream and a hydrogen-sulphide-rich stream; purifying the first carbon-dioxide-rich stream by bringing the first carbon-dioxide-rich stream into contact with a second lean absorbent solution stream, delivering a second carbon-dioxide-rich stream and a second rich absorbent solution stream, the molar concentration of carbon dioxide in the second carbon-dioxide-rich stream being greater than the molar concentration of carbon dioxide in the first carbon-dioxide-rich stream.

Abstract: A seawater oxidation basin system (42) for treating effluent seawater is described. The effluent seawater is generated in the removal of sulfur dioxide from a process gas by contacting the process gas containing sulfur dioxide with seawater. The oxidation basin system (42) includes: —a first supply pipe (64) for distributing oxidation enhancing sub stance in the effluent seawater (75), —a second supply pipe (66) for distributing oxidation enhancing sub stance in the effluent seawater (75), and —a control device (76, 78) for controlling a first amount of oxidation enhancing substance supplied by one of the first and second supply pipes (64, 66) independently from a second amount of oxidation enhancing substance supplied by the other one of the first and second supply pipes (64, 66).

Abstract: A carbon dioxide recovery device can perform a carbon dioxide adsorption treatment, a carbon dioxide separation treatment, a carbon dioxide adsorbing material repair treatment, and a carbon dioxide adsorbing material manufacture treatment. The carbon dioxide recovery device includes: a casing including a fluid treatment passage, a gas supply port through which a fluid is supplied to the fluid treatment passage, and a gas exhaust port through which the gas supplied to the fluid treatment passage is discharged; a plurality of housing tanks provided in a fluid treatment passage and each configured to house carbon dioxide adsorbing materials K; and an adsorbing liquid supplying portion configured to supply an adsorbing liquid to the housing tanks. Passage opening-closing mechanisms configured to store the adsorbing liquid in or discharge the adsorbing liquid from the housing tanks are respectively provided at bottom portions of the housing tanks.

Abstract: A process for removing carbon dioxide from a fluid comprises the steps of: (a) treating the fluid by bringing it into countercurrent contact with a liquid absorbent in a first absorption zone and thereafter in a second absorption zone to absorb at least part of the carbon dioxide contained in the fluid into the absorbent; (b) depressurizing the loaded absorbent to release a first stream of carbon dioxide and yield a partially regenerated absorbent; (c) recycling a first stream of the partially regenerated absorbent into the first absorption zone; (d) heating a second stream of the partially regenerated absorbent to release a second stream of carbon dioxide and yield a regenerated absorbent; (e) recycling the regenerated absorbent into the second absorption zone; (f) condensing water vapor entrained in the second stream of carbon dioxide by cooling the second stream of carbon dioxide and transferring at least part of the heat recovered to the partially regenerated absorbent by indirect heat exchange.

Abstract: CO2 is absorbed from a gas mixture by contacting the gas mixture with an absorption medium which comprises at least water as solvent and at least one amine of formula (I) where R1 is an aliphatic radical, having 2 to 6 carbon atoms and at least one amino group, and R2 is hydrogen, a C1-4 alkyl radical or a radical R1.

Abstract: The present invention provides a system for capturing CO2 and/or SO2, comprising: (a) a CO2 and/or SO2 absorber comprising an amine and/or amino acid salt capable of absorbing the CO2 and/or SO2 to produce a CO2- and/or SO2-containing solution; (b) an amine regenerator to regenerate the amine and/or amino acid salt; and, when the system captures CO2, (c) an alkali metal carbonate regenerator comprising an ammonium catalyst capable catalyzing the aqueous alkali metal bicarbonate into the alkali metal carbonate and CO2 gas. The present invention also provides for a system for capturing SO2, comprising: (a) a SO2 absorber comprising aqueous alkali metal carbonate, wherein the alkali metal carbonate is capable of absorbing the SO2 to produce an alkali metal sulfite/sulfate precipitate and CO2.

Abstract: A process for removing carbon dioxide from a fluid comprises the steps of: (a) treating the fluid by bringing it into countercurrent contact with a liquid absorbent in a first absorption zone and thereafter in a second absorption zone to absorb at least part of the carbon dioxide contained in the fluid into the absorbent; (b) depressurizing the loaded absorbent to release a first stream of carbon dioxide and yield a partially regenerated absorbent; (c) recycling a first stream of the partially regenerated absorbent into the first absorption zone; (d) heating a second stream of the partially regenerated absorbent to release a second stream of carbon dioxide and yield a regenerated absorbent; (e) recycling the regenerated absorbent into the second absorption zone; (f) condensing water vapor entrained in the second stream of carbon dioxide by cooling the second stream of carbon dioxide and transferring at least part of the heat recovered to the partially regenerated absorbent by indirect heat exchange.

Abstract: A process includes contacting a feed stream of light hydrocarbons and an acid gas with a first solvent stream to produce a first methane-enriched overhead gas stream and a first stage solvent effluent bottoms stream including absorbed methane and absorbed acid gas. The process further includes flash separating the first stage solvent effluent bottoms stream to produce a vapor fraction including the acid gas and methane a gas-depleted liquid fraction of the first stage solvent effluent bottoms stream. The process further includes contacting the first methane-enriched overhead gas stream with a second solvent stream to produce a second methane-enriched overhead gas stream and a second stage solvent effluent bottoms stream including absorbed methane CO2. Still further, the process includes regenerating the second stage solvent effluent bottoms stream to produce a vapor fraction comprising the acid gas and a regenerated liquid fraction of the second stage solvent effluent bottoms stream.

Abstract: The CO2 recovery apparatus is provided with a CO2 absorption portion for absorbing CO2 in a CO2-containing exhaust gas by a CO2 absorbing liquid, a water washing portion provided on the upper portion side of the CO2 absorption portion so as to cool a CO2-removed exhaust gas and also recover the accompanying CO2 absorbing liquid, a washing liquid circulation line for directly circulating a washing liquid containing the CO2 absorbing liquid recovered in the water washing portion, an extraction line for extracting part of the washing liquid containing the CO2 absorbing liquid as an extracted liquid from the washing liquid circulation line, a concentration portion for separating a gas component (water vapor) from the extracted liquid while concentrating the CO2 absorbing liquid, and a concentrated liquid feed line for feeding a concentrated liquid concentrated in the concentration portion to the side of an absorbing liquid regeneration tower.