147 results about "Co2 removal" patented technology

An exchange fluid having one or more amino acid for removing carbon dioxide from a solid sorbent and systems containing the same are disclosed. The exchange fluid may further include a neutralizing base for neutralizing the amino acid. The system may further employ an electrochemical cell to regenerate the exchange fluid by removing carbon dioxide from the exchange fluid without employing degrading temperatures and pressures.

Technologies and techniques for producing a sorption element for removing carbon dioxide from ambient air. The method includes providing a carbon dioxide-binding starting material and a binder, mixing them to form a homogeneous mixture, and either molding the mixture into a sorption structure or coating a support structure with the mixture. The sorption structure or coated support structure is then thermally treated to solidify and / or chemically activate the sorbent material. The disclosed method enables the production of highly efficient sorption elements with enhanced thermal and electrical conductivity, which improve adsorption and desorption processes. The disclosure also includes systems and apparatus configured to perform this method, offering reduced material usage, improved energy efficiency, and customizable geometries for diverse applications.

This disclosure relates to systems and methods for removing CO2 from flue gas. The system includes a first heat exchanger for receiving and cooling the flue gas, a compressor for increasing the pressure of the cooled gas, a second heat exchanger to further cool the compressed gas, and a drying unit for removing water from the cooled compressed gas. The system further includes a pressure swing adsorption unit for adsorbing CO2 from the dried, cooled compressed gas using an adsorption media, the adsorption unit comprising a vacuum compressor for pulling the CO2 off the adsorption media. A compressor may be used for extracting the CO2 from the tank and boosting the pressure of the CO2 gas.

A process for the production of hydrogen comprises: a first steam reforming step of a feedstock containing hydrocarbons to obtain a first synthesis gas; a first synthesis gas shift and cooling step on the first synthesis gas; a separation step for separating the first synthesis gas into a high concentration hydrogen stream and a tail gas stream; a second low pressure steam reforming step performed on the tail gas to obtain a second synthesis gas; a second synthesis gas shift and cooling step on the second synthesis gas; a CO2 removal step performed on the stream of hydrogen and carbon dioxide exiting the second synthesis gas shift and cooling step in order to separate a CO2 stream from a fuel grade hydrogen stream; a step of feeding at least a part of the fuel grade hydrogen stream to the first steam reforming step.

The invention discloses a furnace top gas cyclic reforming process and system, and the reforming process comprises the following steps: S1, heating furnace top gas generated by a blast furnace to 1000-1200 DEG C to obtain high-temperature gas; s2, mixing the high-temperature coal gas with coal, and carrying out electromagnetic induction heating coal gas reforming reaction to generate reduced coal gas which is 900-1000 DEG C and contains CO and H2; s3, performing plasma heating on the reduced gas to 1400-1800 DEG C to obtain high-temperature reduced gas; s4, recycling the high-temperature reduction coal gas to the lower part of the blast furnace for circular treatment; according to the method, a carbon capture device of a conventional oxygen blast furnace and a top combustion type gas heating furnace and a CO2 removal device of a carbon circulation blast furnace are replaced by circular reforming of the furnace top gas, so that the energy consumption and the equipment investment of the technological process are reduced.

A sorbent reactor system for removing carbon dioxide from air is provided. The sorbent reactor system facilitates improved energy and thermal efficiency and includes a cascading heat pump. The cascading heat pump includes a plurality of heat exchangers fluidly connected to each other via a pipe network. The plurality of the heat exchangers are microchannels coated with sorbent material capable of adsorbing carbon dioxide from ambient air, with sorbent heat exchangers then disposed in vacuum chamber reactors fluidly connected to each other. A first heat transfer fluid flows and recirculates through the pipe network and heat exchangers of a first heat pump, transferring heat away from hot sorbent undergoing a cooldown process under vacuum and towards cool sorbent undergoing a desorption process under vacuum. A second heat transfer fluid flows and recirculates through a second heat pump to transfer energy from ambient air to the first heat transfer fluid.

The present disclosure provides a method for removing carbon dioxide from a gas comprising carbon dioxide, the method comprising contacting the gas comprising carbon dioxide with a fluidized solid adsorbent, thereby removing carbon dioxide from the gas and forming a carbon dioxide depleted gas.

The present disclosure provides systems and methods for performing amine capture on a heated flue gas using multiple rotating packed beds. The equipment footprint and overall equipment volume required for CO2 capture can be significantly reduced by integrating a series of rotating packed beds to perform cooling of the flue gas, removing CO2 from the flue gas by contacting with an aqueous amine solution, and scrubbing the gaseous effluent from the CO2 removal step to remove any entrained amine. The integration of cooling, CO2 removal, and scrubbing may be partially integrated into a series of packed beds by using different packing materials in various packed beds.

The invention provides an apparatus and method for producing a hydrogen rich gas, the method comprising the steps of reforming a hydrocarbon feed in an autothermal reformer to obtain a synthesis gas; shifting the synthesis gas in a shift configuration comprising a high temperature shift step; removing CO2 in a CO2 removal section by amine washing to form a hydrogen rich stream, wherein a portion is used as a low carbon hydrogen fuel; and forming a CO2 rich gas stream and a high pressure flash gas stream. The high pressure flash gas stream is advantageously integrated into the apparatus and method to further improve carbon capture.

Described is an apparatus for oxygenation and / or CO2 clearance of a patient, comprising: a flow source or a connection for a flow source for providing a gas flow, a gas flow modulator, a controller to control the gas flow, wherein the controller is operable to: receive input relating to heart activity and / or trachea gas flow of the patient, and control the gas flow modulator to provide a varying gas flow with one or more oscillating components with a frequency or frequencies based on the heart activity and / or trachea flow of the patient.

The present invention relates to a process for removing carbon dioxide from a synthesis gas having at least hydrogen and carbon dioxide in which the synthesis gas is at least partially freed of carbon dioxide in an absorption apparatus by physical absorption at elevated absorption pressure. The carbon dioxide is subsequently desorbed by pressure reduction relative to the absorption pressure in a plurality of serially arranged flash stages and an at least partially regenerated absorption medium is withdrawn from the last of the plurality of serially arranged flash stages, recompressed to absorption pressure and recycled into the absorption apparatus for use as absorption medium. It is also provided according to the invention that a partially regenerated absorption medium from a flash stage upstream of the last of the plurality of serially arranged flash stages is recompressed to absorption pressure and recycled into the absorption apparatus for use as absorption medium.

The disclosure relates to a carbon dioxide catcher (100) comprising: two reactors (110a, 110b), each reactor comprising at least one cassette (120a, 120b) with a carbon capture material; and a process air circuit (S1) configured to conduct process through each reactor (110a, 110b), wherein the carbon dioxide catcher (100) further comprises a pair of valves (150a, 150b) configured to conduct process air through one reactor (110a, 110b) at a time, wherein the carbon dioxide catcher (100) further comprises a control unit (160) configured to control the valves (150a, 150b) such that the process air is switched from being conducted through one of the reactors (110a, 110b) to the other based on a carbon dioxide level in the process air downstream of the reactors (110a, 110b). The disclosure further relates to a method (200) for removing carbon dioxide from process air conducted through a carbon dioxide catcher (100) and a computer program.

This CO2 removal device for removing CO2 from a gas is provided with: a cylindrical housing; a plate-shaped first carrier for supporting, on the surface thereof, an adsorbent that adsorbs CO2, the first carrier being disposed inside the housing; and a plate-shaped second carrier for supporting, on the surface thereof, an adsorbent that adsorbs CO2, the second carrier being disposed inside the housing such that a gas flow path for circulating the gas is formed between the first carrier and the second carrier. The first carrier includes at least one first ridge portion that protrudes toward the second carrier and extends inside the gas flow path so as to be inclined at a first angle with respect to the extending direction of the housing. The second carrier includes at least one second ridge portion that protrudes toward the first carrier so as to be in contact with the first ridge portion and extends inside the gas flow path so as to be inclined at a second angle that intersects a direction in which the first ridge portion extends and is different from the first angle with respect to the extending direction.

A device, method, and system for CO2 capture is disclosed. The method includes receiving a process vapor including water and CO2 into a vessel at an intake pressure, the vessel having a desiccant and a CO2 sorbent material. The method includes passing the process vapor through the desiccant and sorbent, the desiccant absorbing the water resulting in a dry vapor, the sorbent absorbing CO2 from the dry vapor resulting in a CO2-lean dry vapor. The method includes discontinuing the process vapor, desorbing the water from the desiccant by at least one of reducing pressure downstream from the desiccant to below the intake pressure and increasing a temperature of the desiccant, desorbing the CO2 from the sorbent by placing the desorbed water in contact with the sorbent, removing the desorbed CO2 through the product outlet as a product stream, and desorbing a remaining water from the desiccant and the sorbent.

The purpose of the present invention is to provide a cell culturing device and a cell culturing method that enable simultaneous removal of carbon dioxide in a liquid phase and a gas phase, sufficient removal of carbon dioxide in the liquid phase, preferential degassing of carbon dioxide in the gas phase over oxygen to facilitate retention of oxygen in a system, and that have high culture efficiency. The present invention provides a cell culturing device comprising: a culture vessel in which a liquid phase, which is a culture solution containing cells, and a gas phase are encapsulated; and at least one gas separation membrane module disposed in the culture vessel. The gas separation membrane module includes a gas separation membrane capable of separating carbon dioxide, and a housing case to which the gas separation membrane is fixed. The gas separation membrane in the culture vessel is installed such that a part of the gas separation membrane is exposed to the gas phase and the remainder is immersed in the liquid phase.

The invention provides a coal mine gas fine extraction system and a using method, and relates to the technical field of gas extraction treatment. The problems that the extraction rate of low-concentration gas is low, the impurity content is high, and the mixing precision is poor are solved. The system comprises a tree-shaped extraction pipe network, a spiral separation pipe, a washing device, a condenser, an adsorption tower, a membrane separation device and a dynamic and static coupling mixing system which are communicated in sequence. Directional drilling-hydraulic fracturing permeability increasing is adopted, and the low-concentration gas recovery rate is larger than or equal to 70%; multistage centrifugation, water washing, adsorption and membrane separation are combined, the removal rate of dust, H2S and CO2 is larger than or equal to 90%, and methane is purified to be larger than or equal to 95%; the static and dynamic mixing cavity is controlled by fuzzy PID closed loop, and the mixing proportion error is less than or equal to + / -1.5%. The system is modularized, explosion-proof, low in consumption and intelligent, and safe and efficient extraction and high-quality utilization of coal mine gas are achieved.

We provide a CO2 and oil removal device that can effectively separate and remove CO2 and oil by bringing drainage discharged from a compressed air circuit into contact with calcium hydroxide and an oil adsorbent in that order. [Solution] The device is comprised of a cylindrical body having a hollow section and openings at the top and bottom, the hollow section of which is filled with granular calcium hydroxide capable of adsorbing CO2 and an oil adsorbent capable of separating and removing oil; a bottom body having an inlet at a predetermined location and capable of closing the lower open end of the hollow cylinder body via a fastening means; and a lid body having an outlet at a predetermined location and capable of closing the upper open end of the hollow cylinder body via a fastening means, and a means is adopted in which the drain flowing in from the inlet comes into contact with the calcium hydroxide and then the oil adsorbent.

A mesoporous carbon sorbent for removal of carbon dioxide from a gaseous material includes a BJH average pore width greater than about 3 nm, and a selectivity of carbon dioxide to nitrogen greater than about 20.00 at about 30° C., a partial pressure of carbon dioxide of about 114 mmHg, and a partial pressure of nitrogen of about 646 mmHg. Related mesoporous carbon sorbents, and methods of forming the carbon sorbents are also disclosure.

The plant (1; 301; 401) comprises a heat exchanger (37; 337; 437) adapted to receive compressed flue gas containing carbon dioxide, and condense at least part of the carbon dioxide contained therein. A a carbon dioxide removal unit (39;39; 439) of the plant is adapted to remove liquefied carbon dioxide from the flue gas exiting the heat exchanger (37;337; 437). A carbon dioxide outlet duct (61; 391; 479) extends through the heat exchanger (37; 337; 437). The plant further includes a distillation section (6; 306; 406). The distillation section includes a distillation column (201; 360, 501), a reboiler (203; 363; 505) at the bottom of the distillation column (201; 360; 501) and an overhead condenser (205; 361; 503) at the top of the distillation column (201; 360; 501). Also disclosed herein is a method for removing carbon dioxide form a flue gas.

A unit for removing CO2 from a syngas comprises means to remove acid gas from a syngas containing CO, H2S and carbonyl sulphide (COS) to eliminate at least most of H2S, means for heating purified syngas, a saturator for moisturizing the heated syngas to produce heated and moisturized syngas, means for injecting steam into the heated and moisturized syngas to form a mixture of steam and syngas, at least one shift reactor for subjecting the mixture to water gas shift reaction means for cooling the shifted syngas to form cooled shifted syngas, an adsorption unit for removing H2O and H2S from the cooled shifted syngas by adsorption in any order to produce dehydrated syngas, means for separating the dehydrated syngas by partial condensation and / or distillation to form a H2 rich gaseous stream and CO2 rich liquid stream and means for sending the H2 rich gaseous stream as fuel to a gas turbine.

Hydrogen production processes with solvent-based CO2 removal units having decreased carbon emissions in the fuel gas and reduced buildup of inert gases are described. The processes incorporate a hydrogen pressure swing adsorption (PSA) unit and a second separation unit, which can be a membrane separation unit, or a PSA unit. The membrane separation unit can be combined with a second PSA unit.

The utility model discloses a carbon dioxide production technology in methanol removal device, including the casing, the top fixedly connected with the shell cover of casing, the both sides of casing are linked with the air inlet pipe and exhaust pipe respectively, the inside of casing is provided with filter screen and guide pipe, be provided with connecting structure between guide pipe and air inlet pipe, the connecting mechanism includes connecting seat, handle, sliding slot, sliding block, clamping block and spring. The utility model relates to the technical field of carbon dioxide production, and this carbon dioxide production technology in methanol removal device, through the cooperation between sliding slot, sliding block, clamping block, spring, first deflector and second deflector, realizes and removes methanol fully, solves the phenomenon that methanol cannot fully contact between active carbon filter screen due to the flow rate of carbon dioxide in the casing is relatively fast, causes methanol removal thoroughly, thereby reduce the removal device's removal carbon dioxide internal methanol effect problem.

A CO2 removal system (1) has a CO2 removal device (11) for removing CO2, and a computing device (100). The computing device (100) has a memory (102) for storing a program and a processor (101) for executing the program. The processor (101): receives first information necessary for calculating the overall cost and the substantial CO2 reduction amount and second information related to a plurality of power plant packages (31-33); calculates the overall cost based on the cost associated with the operation of the CO2 removal device (11) and the carbon credit revenue resulting from the removal by the CO2 removal device (11); calculates the maximum CO2 removal amount and the substantial CO2 reduction amount; selects one power plant package from the plurality of power plant packages (31-33) on the basis of the overall cost and substantial CO2 reduction amount that have been calculated; and performs control such that the CO2 removal device (11) is operated using the power from said power plant package.

To provide a carbon dioxide fixation method that eliminates the need for artificial injection of carbon dioxide, and allows for the removal of carbon dioxide that has naturally dissolved into seawater from the atmosphere, etc., through vapor-liquid equilibrium, by fixing it as carbonate. [Solution] A method for fixing carbon dioxide, characterized by fixing and removing carbon dioxide from seawater as carbonate, comprising the steps of: (A) forming a cyanobacteria mat on the surface of a solid; (B) placing the cyanobacteria mat in seawater; and (C) irradiating the cyanobacteria mat in seawater with light to form carbonate.

Proposed is a method for manufacturing a catalyst for capture and conversion of carbon dioxide capable of removing carbon dioxide and converting carbon dioxide into other useful materials at the same time by capturing and converting carbon dioxide in flue gas generated during fossil fuel combustion into a carbon resource and a catalyst for capture and conversion of carbon dioxide manufactured by the method of the same. The catalyst for capture and conversion of carbon dioxide according to the present disclosure can reduce carbon dioxide by capturing carbon dioxide in flue gas generated during fossil fuel combustion. It is possible to convert the captured carbon dioxide into other useful materials by converting the collected carbon dioxide into sodium carbonate or sodium hydrogen carbonate as carbon resources.

A direct reduction apparatus for the direct reduction of iron oxides includes a gas circulation loop comprising: - a reactor (1) having a reduction zone (2) suitable for loading the iron oxides; - an external source (20) for supplemental gas; - a recovery and treatment pipeline (10) arranged downstream of the reactor (1) for recovering and treating waste gas discharged from the reactor (1); - A treatment and feed line (11) arranged upstream of the reactor (1) is used to treat the process gas obtained by mixing the supplementary gas with the waste gas treated in the recovery and treatment line (10) and to supply the process gas to the reduction zone (2) of the reactor (1); wherein the recovery and treatment line (10) is connected downstream to the treatment and feed line (11); wherein, in its end extension near the end of the treatment and feed line (11), the recovery and treatment line (10) includes a carbon dioxide removal device (50) to remove carbon dioxide from the waste gas, the carbon dioxide removal device being arranged upstream of a compressor (42) for compressing the waste gas and sending it to the treatment and feed line (11).

Systems and methods for removing carbon dioxide from a combustion flue gas and / or air by using a high-pressure aqueous ammonia solvent and a plurality of liquid driven ejectors to absorb and remove the carbon dioxide for carbon capture utilization or storage. The aqueous ammonia solvent is regenerated at a high pressure to save potential compression energy required for the absorption and removal of carbon dioxide.

A method and system are described for removing carbon dioxide from the atmosphere by adding a CO2-reactive chemical base to a body of water in contact with the atmosphere and determining the amount of carbon dioxide removed from the atmosphere or prevented from reaching the atmosphere. The addition of alkali to the body of water is controlled by an injection device capable of determining the amount of CO2-reactive alkali needed to achieve an acceptable target carbon dioxide removal. The rate of alkali flow is affected by input from sensors monitoring conditions in the body of water.

A contaminant removal system for removing contaminants from an environment includes a water management system and a carbon dioxide removal system. The water management system is configured to remove water from a cabin air stream using a first liquid sorbent to produce a dehumidified cabin air stream, and includes a water scrubber and a water stripper. The carbon dioxide removal system is configured to remove carbon dioxide from the dehumidified cabin air stream using a second liquid sorbent, and includes a carbon dioxide scrubber and a carbon dioxide stripper.