350 results about "Co2 removal" patented technology

A system for capturing carbon dioxide from flue gas produced by a coke oven includes a coke oven system and a capture system. The coke oven is configured to process coal to produce coke and a flue gas comprising carbon dioxide. The coke oven includes an induced draft fan positioned downstream of the coke oven. The induced draft fan is configured to provide a vacuum to the coke oven and move the flue gas away from the coke oven. The coke oven system also includes a stack open to atmosphere and downstream of the induced draft fan. The capture system is fluidically coupled to the coke oven system at a point between the coke oven and the stack. The capture system is configured to remove carbon dioxide from the flue gas.

Disclosed herein natural gas power generating systems comprising a post-combustion carbon capture (PCC) unit configured to remove carbon dioxide from a waste gas to create a flue gas, a direct air capture (DAC) unit configured to adsorb carbon dioxide from an atmospheric gas, and a compression unit configured to receive at least one of: (i) carbon dioxide gas from the first carbon dioxide rich outlet line and (ii) carbon dioxide gas from the second carbon dioxide rich outlet line to create a compressed carbon dioxide product. The DAC unit can further generate steam using a heat exchange with steam generated by a HRSG. The DAC unit can further comprise a sorbent module containing the sorbent bed. The sorbent module can have a carbon capture state configured to adsorb carbon dioxide and a regeneration state configured to contact steam with the sorbent bed.

A system for removing carbon dioxide from a gas includes: an eductor, a CO2-lean gas outlet fluidly coupled to the eductor, a fan fluidly coupled to the CO2-lean gas outlet, the fan being rotatable to discharge the CO2-lean gas from the CO2-lean gas outlet, and a capture solution tank. The eductor includes a capture solution inlet operable to receive a lean capture solution, a gas inlet operable to receive the gas that includes carbon dioxide, a mixing zone configured to react the lean capture solution and the gas that includes carbon dioxide; and, an eductor outlet operable to discharge a mixed fluid that includes a rich capture solution and a CO2-lean gas. The capture solution tank is fluidly coupled to the eductor outlet and to the CO2-lean gas outlet, and the capture solution tank configured to collect the rich capture solution.

The invention relates to the technical field of carbon dioxide trapping, in particular to a two-stage rotating wheel adsorption device and method for trapping carbon dioxide in flue gas, the two-stage rotating wheel adsorption device comprises a spray tower, a refrigerating unit, a dehumidification rotating wheel, a carbon trapping rotating wheel, a multi-stage compressor, a refrigerating and liquefying device, a CO2 storage tank and a flue gas fan, the implementation process of the carbon capture device comprises the steps that flue gas is introduced by a flue gas fan, firstly, the flue gas is cooled and dehumidified through a spray tower and a cooler, then the flue gas is dehumidified through a dehumidification rotating wheel, carbon capture is conducted through a carbon capture rotating wheel, and finally high-purity CO2 liquid is conveyed into a CO2 storage tank through a compressor and a refrigeration liquefaction device. The device has the characteristics of low desorption energy consumption, low gas circulation piezoresistance, continuous process and high heat recovery rate, the concentration of enriched CO2 is increased, the concentration of CO2 in flue gas after the carbon capture runner is relatively low, and the unit CO2 capture energy consumption can be greatly reduced while the CO2 removal rate and the enrichment concentration are ensured.

The invention provides a process method and system for directly capturing carbon dioxide from air and converting and utilizing the carbon dioxide. The process method comprises the following steps: adsorbing raw material gas through a carbon dioxide trapping device, and heating and desorbing to obtain purified carbon dioxide gas; the purified carbon dioxide gas and the electrolyte are subjected to electrocatalytic conversion to obtain synthesis gas, oxygen and condensate water, and the condensate water is recycled through water treatment operation to be used for supplementing the electrolyte; the method comprises the following steps: carrying out Fischer-Tropsch synthesis reaction, hydrocracking and isomerization reaction on synthesis gas to obtain an isomerized oil-gas mixture, wherein heat energy generated by the reaction provides heating desorption heat; and carrying out gas-liquid separation on the heterogeneous oil-gas mixture to obtain combustible gas and an upgraded oil product, carrying out rectification operation on the upgraded oil product to obtain an SAF component and a heavy oil product, and carrying out oxygen-enriched combustion reaction on the combustible gas and oxygen to provide heating desorption heat or supply required heat energy. An integrated and flexible industrial technology platform is developed, carbon capture and conversion processes are seamlessly connected, full-chain optimization from CO2 removal to high-added-value product generation is realized, and self heat energy requirements and wastewater utilization can be met.

The present application relates to the field of carbon capture. Embodiments of the present application provide systems, devices, and methods relating to metal hydroxide looping for capturing atmospheric carbon dioxide. Related systems for the electrolytic production of acids and bases for chemical processing and for materials handling are also described.

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.

The invention provides condensation and pre-concentration equipment for trace organic gas and a treatment method thereof, and the condensation and pre-concentration equipment comprises a water vapor removal device which is used for removing impurity gas mainly containing water in sample gas; the carbon dioxide removal device is used for removing carbon dioxide in the sample gas; the trapping trap device comprises a first trapping trap and a second trapping trap, and the second trapping trap is connected with the carbon dioxide removal device and is used for trapping the sample gas subjected to carbon dioxide removal; the temperature control device is used for controlling the temperature of the water vapor removal device and the trap device; the valve group device comprises a plurality of valves which are multi-channel switching valves and are at least used for introducing sample gas and dry gas; the carrier gas input device comprises a first path of carrier gas, a second path of carrier gas and a third path of carrier gas, the first path of carrier gas is used for driving a sample to transfer, the second path of carrier gas is used for driving sample gas to enter an analytical instrument for detection, and the third path of carrier gas is used for back-blowing carbon dioxide in the carbon dioxide device; and the analysis device is used for analyzing the sample gas.

A system for a multi-chambered electrochemical cell for carbon dioxide removal includes an electrochemical cell. The electrochemical cell includes an anodic chamber at a first end of the electrochemical cell, which includes an anode. The electrochemical cell includes an acid swing chamber adjacent to the anodic chamber and separated by a cation exchange membrane. The electrochemical cell includes a desalination chamber separated from the acid swing chamber by a anion exchange membrane. The electrochemical cell includes a base swing chamber in fluid communication with the acid swing chamber and the desalination chamber. The base swing chamber is adjacent to the desalination chamber and separated by a cation exchange membrane. The electrochemical cell includes a cathodic chamber at a second end of the electrochemical cell, the cathodic chamber comprising a cathode, wherein the cathodic chamber is adjacent to the base swing chamber and separated by a second anion exchange membrane.

Some embodiments are directed to a system for extracting carbon dioxide from a fluid. The system can include a fluid source and a reactor. The reactor can include one or more chambers, and each chamber can include one or more monoliths for adsorbing carbon dioxide from the fluid. The chambers can be alternatively unsealed for a contacting mode and sealed for a regeneration mode. A power source can provide an electric current to the monoliths to release carbon dioxide adsorbed by the monoliths. Each chamber can include an array of monoliths. Each monolith can include a sorbent that adsorbs carbon dioxide from fluid. The system can include modular components such that the number of reactors can be increased or decreased.

Adsorbent reactors for removing carbon dioxide (CO2) from the atmosphere with several types of sealing door valves, ranging from a single valve element to multiple valve elements, are provided. The sealing door valves are configured to open to allow gases into the reactor, such as allowing ambient air to enter during adsorption, and can close to seal the reactor, such as allowing vacuum conditions to be created inside the reactor and / or steam to be injected into the reactor during desorption. The valves are designed to create minimum resistance to valve motion, minimum obstruction to gas flow when open, minimum allowance of fluid passage when closed, and to minimize dead space within the reactor.

The invention provides a column [5] aryl solid adsorption material for adsorbing carbon dioxide with high selectivity, which is prepared by the following steps: by taking N, N-dimethylbiguanide and bromoalkylated column [5] aryl as reaction precursors and triethylamine as a catalyst, grafting the N, N-dimethylbiguanide to the bromoalkylated column [5] aryl in anhydrous acetone, and loading the N, N-dimethylbiguanide to porous silica gel, wherein ultra-microporous cavity, mesoporous and macroporous structures of column [5] arene exist at the same time, so that the adsorption performance of CO2 is obviously promoted; meanwhile, due to the introduction of N, N-dimethyl diguanide, more amine active sites exist in the adsorbent, and the adsorption performance of the adsorbent on CO2 is further improved. When the adsorption material is used for separating CO2 / CH4 and CO2 / N2 mixed atmosphere, the CO2 adsorption performance of the adsorption material is superior to that of CH4 and N2, and the adsorption material has high separation selectivity on CO2 / CH4 and CO2 / N2. Besides, the adsorption material has good stability and cyclic regeneration performance, is a novel solid amine adsorption material which is expected to have great saturated adsorption capacity on CO2, and can be widely applied to efficient capture of carbon dioxide in closed space or coal bed gas, combustible ice and other environments.

The invention belongs to the technical field of carbon dioxide trapping, and particularly relates to a carbon dioxide trapping system and a carbon dioxide trapping method. Compared with a traditional thermal desorption method, the carbon dioxide trapping system based on external microwave field assisted absorbent catalytic desorption has the advantage that the microwave desorption method has higher energy utilization efficiency. The random packing catalyst has an acid catalysis function, so that the desorption amount and the carbon removal rate of the absorbent can be further improved, and the random packing catalyst has a microwave absorption function, so that heat and mass transfer in the desorption process is enhanced in a hot spot form, and the utilization of microwaves is further improved. The desorption efficiency of 60-80% can be achieved below 102 DEG C, the CO2 desorption rate is far higher than that of a traditional thermal desorption method, and latent heat consumed by water evaporation in the desorption process is remarkably reduced. Meanwhile, the CO2 removal efficiency of the absorption tower is improved, and the cost of the whole carbon capture process can be remarkably reduced.

A dehumidifier comprising housing (10, fig. 1) featuring an air inlet (20, fig 1) and air outlet (21, fig. 1) coupled together via a channel, with one or more fans positioned within the channel to draw an airflow through the housing. Inside the housing, there are two systems; a dehumidifying system (10, fig. 1) configured to remove moisture from the airflow and a carbon capture system (40, fig.1 ) positioned in the channel downstream from the dehydration system and configured to remove carbon dioxide from the airflow. The carbon capture system may comprise a cartridge containing a porous, regenerative carbon dioxide sequestering material 46 such as a zeolite or melamine. The cartridge may comprise a weight sensor 47 and processor, configured to monitor the saturation of the carbon capture material by determining its weight. A hemi cylindrical dehumidifier cartridge is also described.

An apparatus for oxygenation and / or CO2 clearance of a patient. The apparatus 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. 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 at least two oscillating components. One oscillating component has a frequency based on the heart activity and / or trachea flow of the patient. One oscillating component has a frequency to: promote bulk gas flow movement, or promote mixing.

A carbon sorbent for removing carbon dioxide from a gaseous material includes a surface composition including carbon, nitrogen, and oxygen. The nitrogen atoms at the surface of the carbon sorbent may be present in pyridone, pyrrole, and pyridine. The surface of the carbon sorbent may include lactone groups and pyrone groups. The carbon sorbent may have a bulk density greater than about 0.40 grams per cubic centimeter. The carbon sorbent may be formed using amino acids to provide the nitrogen for the carbon sorbent. In addition, the use of processing aids during the formation of the carbon sorbent facilitates the formation of a denser carbon sorbent. Related methods of forming the carbon sorbent and pellets of the carbon sorbent are also disclosed.

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.

A carbon sorbent for removing carbon dioxide from a gaseous material includes a surface composition including carbon, nitrogen, and oxygen. The nitrogen atoms at the surface of the carbon sorbent may be present in pyridone, pyrrole, and pyridine. The surface of the carbon sorbent may include lactone groups and pyrone groups. The carbon sorbent may have a bulk density greater than about 0.40 grams per cubic centimeter and may exhibit a carbon dioxide capacity of at least 11.0 weight percent at 30° C. and 760 mmHg. The carbon sorbent may be formed using amino acids to provide the nitrogen for the carbon sorbent. In addition, the use of processing aids during the formation of the carbon sorbent facilitates the formation of a denser carbon sorbent. Related methods of forming the carbon sorbent and pellets of the carbon sorbent are also disclosed.

The invention relates to a calcium-based carbon capture system and method combining CO2 capture and energy storage for a power station boiler. The invention relates to the technical field of power station boiler calcium-based carbon capture, and relates to the technical field of power station boiler calcium-based carbon capture, the principle that CaCO3 is decomposed into CaO and CO2 for heat absorption is utilized to realize desorption and separation of CO2 and convert crest redundant electricity of new energy into chemical energy, and the principle that CaO and CO2 are combined for heat release is utilized to capture CO2 from exhaust smoke of a power station boiler and convert chemical energy into heat energy. And feeding into a downstream system for utilization. Therefore, the goal of combining CO2 capture and energy storage is achieved. Thermal power can be better coupled with new energy, the peak load shifting effect is achieved, the power supply pressure in the peak period of a power grid is relieved, the stability of the power grid is improved, meanwhile, low-cost CO2 removal is achieved, the advantage of low price of valley electricity is utilized, and the operation or heat supply cost is reduced.

A direct air capture (DAC) system configured to remove carbon dioxide directly from ambient air uses a stack of enclosures each containing DAC media such as activated carbon. The DAC media enclosures have doors that open to allow airflow through the enclosure in an adsorption cycle and close to seal the enclosures to enable captured carbon dioxide to be pumped from the enclosures in a desorption cycle. The DAC system interoperates with a dry cooler that is operatively coupled to a liquid-cooling system for cooling equipment in a data center. Dry cooler fans are configured for extra duty by flowing ambient air through the DAC media enclosures while also flowing air across dry cooler heat exchangers. The DAC system taps hot working fluid from the dry cooler to provide heat to the DAC media enclosures to facilitate the desorption cycle to release captured carbon dioxide into the sealed enclosures.

The utility model discloses a water and CO2 removal device which comprises a CO2 removal mechanism and a water removal mechanism which are sequentially connected through a sample conveying pipeline, the CO2 removal mechanism at least comprises a CO2 adsorption pipe with an inner cavity filled with CO2 adsorbents, and the water removal mechanism at least comprises a Nafion drying pipe. The utility model further discloses a volatile organic compound detection system which comprises an automatic sample injector, a pre-concentration device and a detector, and the water and CO2 removal device is arranged between the sample injector and the pre-concentration device. The device has the advantages that the structure is simple, the moisture and CO2 removal rate is improved, and the detection result of the detector is more accurate and reliable.

The power generation system comprises a fuel cell unit adapted to generate electric power using a hydrocarbon-containing gas. A water-gas shift reactor is adapted to receive flue gas from the fuel cell unit and convert carbon monoxide contained in the flue gas into carbon dioxide and hydrogen. A cryogenic carbon dioxide capture unit is adapted to receive flue gas from the water-gas shift reactor and remove carbon dioxide therefrom. A recycle line recycles carbon dioxide-depleted flue gas to the fuel cell unit.

A carbon sorbent for removing carbon dioxide from a gaseous material includes a surface composition including carbon, nitrogen, and oxygen. The nitrogen atoms at the surface of the carbon sorbent may be present in pyridone, pyrrole, and pyridine. The surface of the carbon sorbent may include lactone groups and pyrone groups. The carbon sorbent may have a bulk density greater than about 0.40 grams per cubic centimeter. The carbon sorbent may be formed using amino acids to provide the nitrogen for the carbon sorbent. In addition, the use of processing aids during the formation of the carbon sorbent facilitates the formation of a denser carbon sorbent. Related methods of forming the carbon sorbent and pellets of the carbon sorbent are also disclosed.

Methods, devices, and systems are disclosed that capture carbon dioxide from ambient air and / or point source emissions and produce carbon dioxide from the captured atmospheric and / or point source carbon dioxide using one or more products of the carbon capture processes. Implementations filter atmospheric and / or point source impurities during the carbon capture process and in steps for producing a CO2 stream via chemical synthesis and optionally thermal generation. The integration of CO2 removal processes and chemical synthesis of CO2 synergistically combine to reduce and / or eliminate waste streams, resulting in efficient processes with low carbon emissions and reduced waste.

Systems and methods for an atmospheric carbon dioxide removal system are disclosed herein. The system may include a carbon capture vessel including a container, one or more sorbent subcontainer, a sorbent material, and a heating element. The container may include a first outer sidewall and a first hollow interior. Each sorbent subcontainer may be disposed within the first hollow interior and may include a second outer sidewall defining a second hollow interior. The sorbent material may be disposed within the second hollow interior of each sorbent subcontainer. The heating element may be disposed within the container and around one or more sidewalls of a sorbent subcontainer. The heating element may be arranged to heat the sorbent material within the second hollow interior.

The invention provides an absorption tower, system and method for removing carbon dioxide and controlling escape of organic amine through an amine method. The absorption tower comprises an absorption section, a cooling amine condenser, a washing section and a first multi-layer demister. The system comprises the absorption tower, a regeneration tower, a heat exchanger, a primary condenser, a first gas-liquid separation tank, a secondary condenser and a second gas-liquid separation tank. The method comprises the following steps: enabling flue gas to enter an absorption tower, absorbing CO2 in the flue gas, and washing with water; the rich liquor enters a regeneration tower for regeneration and CO2 release after heat exchange, and the barren liquor enters an absorption tower after heat exchange; and the regenerated gas enters a condenser to be cooled and then is separated by a gas-liquid separation tank to obtain CO2 gas and condensed water, and the condensed water flows back to the regeneration tower. According to the invention, the escape of organic amine in the process of removing CO2 by using an amine method is reduced, the environmental pollution is effectively reduced, and the problem that the system operation cost is increased due to amine loss is reduced.

The present invention discloses a nitrogen isotope determination method for nitrogen in a gas sample, and relates to the technical field of isotope analysis, the method comprises: instrument performance pretreatment: before sample determination, determining that an instrument is in a stable working state by checking the vacuum degree, detecting the interference peak, tuning an ion source, and testing the stability and linearity of reference gas; according to the method, a glass sample bottle is adopted to collect a gas sample, and before collection, a bidirectional inert gas replacement-vacuumizing coupling sampling process is adopted to treat the sample bottle. Residual air in the sample bottle and air attached to the bottle wall are effectively removed, and the sample pollution risk is remarkably reduced; the CO2 adsorption trap adopts a gradient filling structure and is matched with a constant-temperature heating sleeve, so that the contact time of CO2 and an adsorption material is prolonged, meanwhile, the influence of adsorption heat release on the adsorption efficiency is avoided, and the CO2 removal rate is improved.

Various embodiments of an integrated system for capturing carbon dioxide and converting it into at least one useful product is described herein. Carbon dioxide, in some embodiments, can be captured via liquid mist, separated from a gas stream electrostatically, and converted into at least one product using any of myriad of conversion apparatuses. In some embodiments, the integrated system can remove carbon dioxide from a combustion exhaust stream.

To provide a technique capable of supplying ammonia mixed fuel gas without deposit.SOLUTION: A method includes processes of: removing CO2 from CO2 containing fuel gas; dehumidifying the fuel gas from which CO2 has been removed; and mixing ammonia in a piping system when the dehumidified fuel gas from which CO2 has been removed is transferred to a fuel gas use facility by using the piping system. In the method, the piping system from a position where ammonia is mixed to the fuel gas use facility is warmed to maintain a temperature of the fuel gas at 60°C or higher. A device includes: a mixer for mixing ammonia in the middle of the piping system for transferring the CO2 containing fuel gas; a heater for heating the piping system from the mixer to the fuel gas use facility to cause the temperature of the fuel gas to become 60°C or higher; a CO2 removal device that is installed in the piping system upstream of the mixer and removes CO2 from the CO2 containing fuel gas; and a dehumidification device installed between the CO2 removal device and the mixer.SELECTED DRAWING: Figure 1

Embodiments of the present disclosure are directed to systems and methods of removing carbon dioxide from a gaseous stream using magnesium hydroxide and then regenerating the magnesium hydroxide. In some embodiments, the systems and methods can further comprise using the waste heat from one or more gas streams to provide some or all of the heat needed to drive the reactions. In some embodiments, magnesium chloride is primarily in the form of magnesium chloride dihydrate and is fed to a decomposition reactor to generate magnesium hydroxychloride, which is in turn fed to a second decomposition reactor to generate magnesium hydroxide.