31 results about "Carbon dioxide removal" patented technology

A carbon dioxide removal system includes: a flow path through which a target gas flows; a treatment unit including adsorption towers connected in series in the flow path; and a control device that switches between paths of the target gas. The flow path includes: a first main path that supplies the target gas to the treatment unit; a first recovery path that discharges, to a target space, the target gas passed through the first main path; a desorption path connected to the adsorption towers; a first branch path that connects a path between the adsorption towers on upstream and downstream sides to the first recovery path; and a switching mechanism that switches a path through which the target gas flows. The desorption path is connectable in parallel to the adsorption towers.

This invention proposes a deep-sea seabed observation device based on bidirectional concentration gradient gas exchange for dissolved oxygen compensation, belonging to the field of deep-sea exploration and marine instrumentation technology. It solves the problems of existing deep-sea seabed in-situ observation devices, such as the inability to achieve low-disturbance dissolved oxygen compensation and carbon dioxide removal during long-term closed observations, and the difficulty in adapting to extreme high pressures in the deep sea to achieve pressure stabilization, leading to deterioration of the observation environment, data distortion, and insufficient equipment reliability. It includes an observation unit, a power and chemistry unit, and a fixed lifting system. The observation unit comprises an observation cabin, a membrane module installed on the bottom of the observation cabin's hatch, and a circulation hose connected to the membrane module. The membrane module includes a membrane module frame and a PTFE tube fixed to the membrane module frame in a spiral configuration. The PTFE tube is a microporous hose that enables bidirectional concentration gradient gas exchange. The power and chemistry unit is installed at the front panel of the observation cabin via a power and chemistry unit mounting component. It is mainly used for deep-sea seabed observation.

The application discloses a kind of without heating regeneration carbon dioxide normal temperature removal process and system, belong to natural gas decarburization field;A kind of without heating regeneration carbon dioxide normal temperature removal process, comprising the following steps:S1, raw material gas pretreatment;S2, CO2 absorption;S3, rich liquid flash evaporation;S4, lean liquid regeneration;S5, material circulation;The application is effectively solved by the absorption part of being set, the pain point that edge filler reaction is not sufficient, the low life of central filler;Can shake and scatter adhesion filler ball, clean filter hole impurity, avoid filter hole blockage, further improve gas-liquid mass transfer efficiency;Can buffer knock impact force, prevent that filler plate is damaged;Can effectively protect electric telescopic rod, and maintenance is convenient, need not to disassemble whole tower body, shorten maintenance cycle, guarantee production continuity;Can avoid liquid flooding, channeling phenomenon.

The invention discloses a chamber interior air conditioning system which comprises a chamber, a first air inlet mechanism, a first air inlet pipeline, a carbon dioxide removing mechanism, a second air inlet pipeline, an exhaust pipeline, a first communicating valve and a second communicating valve. The carbon dioxide removal mechanism comprises a first carbon dioxide adsorption and desorption tower and a second carbon dioxide adsorption and desorption tower which are used for alternately adsorbing and desorbing carbon dioxide, and the chamber is communicated with a gas outlet pipeline and a gas return pipeline; the first communicating valve is used for selectively communicating the second gas inlet pipeline and the gas outlet pipeline with the first carbon dioxide adsorption and desorption tower and the second carbon dioxide adsorption and desorption tower in pairs; and the second communicating valve is used for selectively communicating the gas exhaust pipeline and the gas return pipeline with the first carbon dioxide adsorption and desorption tower and the second carbon dioxide adsorption and desorption tower in pairs. The air conditioning system in the chamber not only can meet the requirement for maintaining the qualified carbon dioxide content in the chamber, but also can meet the requirement for maintaining the qualified pressure in the chamber.

Methods and systems for carbon dioxide removal are disclosed herein. In some embodiments, a representative carbon dioxide removal apparatus includes a web with a sorbent configured to absorb carbon dioxide and a drive system operably coupled to the web. The drive system can transport the web from a first zone, in which the web is exposed to gas, to a second zone, where the first zone is at a first temperature and the second zone is at a second temperature greater than the first temperature. The apparatus can further include a heating mechanism configured to increase a temperature of the second zone at least to the second temperature. This causes the removal of fluid including carbon dioxide from the web within the second zone.

The invention discloses an artificial intelligence self-adaptive temperature and humidity regulation and control system for agricultural products, and relates to the technical field of intelligent environment control and agricultural intellectualization, the artificial intelligence self-adaptive temperature and humidity regulation and control system comprises a culture bin shell and an isolation plate arranged in the culture bin shell, and the two sides of the isolation plate are provided with a pipeline system and a control system respectively; the control system comprises a temperature adjusting fan, an atomizing sprayer, an electric control box, a frequency conversion type temperature control equipment outdoor unit, a carbon dioxide removal device, an external circulation water curtain device, an intelligent airflow adjusting valve and an air purification pipeline. The system can realize automatic monitoring and accurate control of a cultivation environment, has the advantages of energy conservation, high efficiency, good environment balance, high intelligent degree and the like, and is suitable for intelligent storage and cultivation scenes of multiple crops such as sweet potatoes, fruits and vegetables, edible mushrooms, flowers and the like; the problems of environment control lag, energy waste and uneven climate distribution in an existing storage and cultivation system can be effectively solved.

The invention relates to the technical field of natural gas ethane recovery and light hydrocarbon recovery, in particular to a system and method for removing carbon dioxide during natural gas ethane recovery. Comprising a dehydration device, a first flow divider connected with the dehydration device, a first heat exchanger connected with the first flow divider, a second heat exchanger connected with the first heat exchanger, a first low-temperature separator connected with the first heat exchanger, a second low-temperature separator connected with the first heat exchanger and the second heat exchanger, a first rectifying tower and a first reboiler, the decarbonization device is connected with the first flow divider; the other end of the decarburization device is connected with the first heat exchanger; the first heat exchanger is further connected with a pressurizing and cooling unit, the pressurizing and cooling unit is externally connected with an LNG / helium extraction device, and the first rectifying tower and the second heat exchanger are externally connected with a denitrification / helium extraction / LNG liquefaction device. Carbon dioxide removal treatment does not need to be conducted on all natural gas, and the power of a regeneration gas compressor and the heat loads of a heater and a cooler are reduced.

The utility model discloses a kind of carbon dioxide removal devices, the first flange of carbon dioxide removal cylinder bottom is fastened and connected with the second flange of cylindrical water tank top end connecting port, first flange upper surface is provided with several first reinforcing plates, second flange lower surface and between cylindrical water tank are provided with several second reinforcing plates, the periphery in cylindrical water tank inside and along axial direction are provided with several support columns, the bottom of carbon dioxide removal cylinder is equipped with conical bottom plate, the outlet at the center position of conical bottom plate is provided with annular plate with filter screen, outlet bottom is connected with U-shaped water seal, the utility model structure is reasonable, up-down structure greatly reduces site occupancy rate, and by the strengthening of reinforcing plate and support column, it has good connection strength and structural stability as a whole, the outlet of conical bottom plate is installed with U-shaped water seal, avoid the stench generated in cylindrical water tank into carbon dioxide removal cylinder, and the filter screen at the outlet of conical bottom plate can intercept impurities in waste water, realize the function of filtration.

In a general aspect, a carbon dioxide (CO2) removal system uses geothermal energy. In some implementations, a method to remove CO2 gas from a gaseous feed includes directing a gaseous feed to interact with an alkaline capture solution in a first gas-liquid contactor. A first portion of CO2 from the gaseous feed dissolves into the alkaline capture solution to form a CO2-rich alkaline capture solution. Steam is generated using heat from a geothermal heat source, and the steam heats the CO2-rich alkaline capture solution in a second gas-liquid contactor. A second portion of the CO2 is separated from the CO2-rich alkaline capture solution in the second gas-liquid contactor to form a CO2-lean alkaline capture solution. The CO2-lean alkaline capture solution is directed to the first gas-liquid contactor.

Systems and methods for an atmospheric carbon dioxide removal system that includes a plurality of carbon capture containers, a plurality of fans, an air diverter, and a velocity stack. Each of the carbon capture containers has an outwardly facing side and an inwardly facing side with the inwardly facing side facing an enclosed space. The fans are disposed adjacent to the carbon capture containers. The fans are arranged to move air through the carbon capture containers in a first direction from the outwardly facing side into the enclosed space. The air diverter is disposed within the enclosed space and receives the air flowing in the first direction and redirects the air to flow in a second direction that is angled upwardly from the first direction. The velocity stack is disposed on top of the enclosed space and is configured to accelerate the flow of the air in the second direction.

Technologies for modeling carbon dioxide removal include a compute device with circuitry configured to obtain parameter data for use in modeling carbon dioxide removal from the atmosphere through enhanced rock weathering. The circuitry may also be configured to produce, using one or more models from a library of models, at least one prediction indicative of an amount of carbon dioxide that will be removed through enhanced rock weathering, including simulating co-precipitation of iron with one or more toxic metals. Further, the circuitry may be configured to present a visual representation of the at least one prediction in a user interface. Other embodiments are also described and claimed.

A method of measuring captured carbon from an atmosphere includes modeling a mining-influenced water body, measuring a carbon content of the mining-influenced water body, contacting the mining-influenced water with an alkaline material to form a mining- influenced water and alkaline mixture, measuring a parameter of the mining-influenced water and alkaline mixture over time, measuring the carbon content of the mining-influenced water body, and calculating the amount of carbon captured from the atmosphere.

According to one aspect, a system for electrochemical power storage may include a plurality of instances of a metal-air battery, each instance of the metal-air battery including an air electrode, a metal electrode, and a liquid electrolyte separating the air electrode from the metal electrode with the air electrode and the metal electrode ionically coupled to one another via the liquid electrolyte; and a carbon dioxide removal system into which ambient air is directable, carbon dioxide from the ambient air removable in the carbon dioxide removal system to generate purified air, and the carbon dioxide removal system in fluid communication with the plurality of instances of the metal-air batteries such that the purified air is movable from the carbon dioxide removal system to the plurality of instances of the metal-air battery.

This invention discloses an indoor air conditioning system, comprising a chamber, a first air intake mechanism, a first air intake pipe, a carbon dioxide removal mechanism, a second air intake pipe, an exhaust pipe, a first connecting valve, and a second connecting valve. The first air intake mechanism is connected to the chamber via the first air intake pipe. The carbon dioxide removal mechanism includes a first carbon dioxide removal tower and a second carbon dioxide removal tower for alternating carbon dioxide removal. The chamber is connected to an exhaust pipe and a return pipe. The first connecting valve selectively connects the second air intake pipe and the exhaust pipe to each of the first and second carbon dioxide removal towers. The second connecting valve selectively connects the exhaust pipe and the return pipe to each of the first and second carbon dioxide removal towers. This indoor air conditioning system can meet both the requirements for maintaining a qualified carbon dioxide content and a qualified pressure within the chamber.

The adsorption and desorption of carbon dioxide can be controlled depending on the situation. [Solution] The system comprises a gas acquisition unit for acquiring gas to be treated from a target space, a distribution path for circulating the acquired gas to be treated, a processing unit in which two or more adsorption towers are connected in series to the distribution path along the flow of the gas to be treated, and a control device for switching the path of the gas to be treated. The distribution path includes a first main path for supplying the gas to be treated to the processing unit, a first recovery path for discharging the gas that has passed through the first main path back into the target space, a desorption path connected to a depressurized adsorption tower, a path between the upstream and downstream adsorption towers of the first processing unit, a first branch path connecting to the first recovery path, and a switching mechanism for switching the path through which the gas flows. The desorption path can be connected in parallel to multiple adsorption towers.

The present disclosure relates to systems and methods for carbon dioxide removal are provided. A system for carbon dioxide removal comprises a liquid distribution system, a liquid collector system, a fill media. The fill media is disposed between the liquid collector system and the liquid distribution system. The liquid distribution system distributes a first aqueous solution to the fill media. The first aqueous solution comprises solid hydroxide particles. A gas flow system flows a gas through the fill media such that the gas contacts the first aqueous solution. The gas comprises a gaseous source of carbon dioxide.

The invention discloses a method for automatically controlling the removal amount of a hydrogen-based shaft furnace carbon dioxide removal system. The method comprises the following steps: 1) constructing feed-forward control logic and feed-back control logic; according to the method, feedforward and feedback automatic adjustment of the carbon dioxide content of the outlet gas of the carbon dioxide removal system is achieved, manual intervention is reduced, and linkage control over the barren liquor injection amount of the absorption tower through the barren liquor pump frequency and barren liquor pump outlet pipeline adjusting valve is achieved.

A method of operating an emitter system includes receiving measured data inputs and operating an emitter assembly based, at least in part, on the control signals to enhance a rate of carbon dioxide removal. An emitter assembly includes a plurality of distributor elements with nozzles for emitting a reactant. The emitter assembly is configured to release one or more emitted materials into an incident airflow. A method of operating an emitter assembly includes conveying a reactant to a plurality of nozzles and emitting the reactant from the plurality of nozzles along nozzle dispersal directions that are elevated relative to an emitter rotational axis. An emitter system includes a wind turbine generator and an emitter assembly positioned and configured to emit a reactant into a rotor wake of the emitter system to react the reactant with carbon dioxide in the rotor wake.

The utility model discloses a trickling filter device with both carbon dioxide removal and biological filtration functions. The trickling filter device comprises a trickling filter cartridge, wherein a filter bed disc is fixedly arranged at the top end in the trickling filter cartridge; a connecting frame and an L-shaped frame plate are fixedly arranged on the filter bed disc, a connecting column is fixedly arranged in the middle of the top end of the filter bed disc, a sleeve shaft is rotationally arranged at the top end of the connecting column, and a first bevel gear is fixedly arranged on the outer wall of the sleeve shaft. Due to the fact that a first bevel gear arranged on the outer wall of a fixing shaft in a sleeving mode is meshed with a second bevel gear at one end of a rotating shaft, a lead screw is driven to rotate, and the lead screw is in threaded connection with a main frame plate, the water inlet pipe can transversely move along a connecting frame in the rotating process, water is rotationally distributed, and the service life of the water inlet pipe is prolonged. The whole filter bed disc can be dynamically covered in a spiral, fan-shaped or partitioned manner, so that the problems of water accumulation, dryness and the like in a local region are effectively avoided, and water can more uniformly permeate into the filter bed.

A process and system are provided for the preparation of syngas and methanol with reduced carbon dioxide emissions. The method comprises dividing a hydrocarbon and steam feed into two streams, one subjected to fuel fired reforming and the other to electrical reforming. At least a portion of the synthesis gas from the electrical reforming is processed in a shift section and a carbon dioxide removal section, producing a hydrogen rich gas and a carbon dioxide rich gas. The hydrogen rich gas is used as fuel in the fuel fired reforming process, reducing the need for hydrocarbon fuel. The system allows for flexible adjustment of process streams and integration with methanol synthesis, enabling significant reductions in natural gas and oxygen consumption and overall carbon dioxide emissions.

Provided is a carbon dioxide removal apparatus that enables determination of whether or not carbon dioxide has desorbed from an adsorbent without using a carbon dioxide sensor. A carbon dioxide removal apparatus includes a carbon dioxide adsorption module, a first valve provided in an intake part of the carbon dioxide adsorption module, a second valve provided in a discharge part of the carbon dioxide adsorption module, a third valve connected to the discharge part, a vacuum pump connected to the carbon dioxide adsorption module via the third valve, and a controller. The carbon dioxide adsorption module includes a pressure meter and an adsorbent, and the controller is configured to perform, based on a pressure measured by the pressure meter, at least one of determining whether carbon dioxide has desorbed from the adsorbent or detecting an abnormality.

The invention relates to the technical field of greenhouse gas utilization, in particular to a novel system for preparing methanol from greenhouse gas by utilizing solar energy, which comprises a light condensation assembly for condensing sunlight, a frequency division assembly for performing frequency division on a condensed light beam, and a control module for controlling the frequency division assembly to perform frequency division on the condensed light beam. The dry reforming reactor is further provided with an oxygen inlet, the electrolyzed water reactor is connected with the dry reforming reactor to supply oxygen, the biogas pressurizing unit is connected with the input end of the desulfurization unit, the output end of the desulfurization unit is connected with the input end of the dry reforming reactor, and the discharging end of the dry reforming reactor is connected with the input end of the first flash tank. The output end of the first flash tank is connected with the carbon dioxide removal device, and the discharge end of the carbon dioxide removal device is connected with the methanol synthesis unit. According to the novel system for preparing methanol from greenhouse gas by using solar energy, a solar spectrum frequency division utilization technology, a photo-assisted thermocatalytic methane dry reforming reactor and methanol synthesis are organically combined, so that the cost of preparing methanol from biogas is reduced.

The present invention relates to a self-assembled carbon dioxide removal structure, in particular a carbon dioxide removal structure useful for direct air carbon capture (DAC), and methods of its manufacture and regeneration. The carbon dioxide removal structure comprises a support having at least one attachment surface with a negative triboelectric surface charge density of less than -150 µC m ‑2 ; and a plurality of amine-containing sorbent particles capable of adsorbing or binding carbon dioxide and self-assembling on the support.

A method for producing direct reduced iron is provided. The method includes circulating a first stream of spent reducing gas exiting a reactor in a reducing gas circuit through at least one carbon dioxide removal unit and a reducing gas heater and the reactor. The method also includes mixing the first stream with reducing gas containing heavier hydrocarbons than methane.

The invention is a method for removing carbon dioxide gas from ambient air using water and solid barium hydroxide in a reaction vessel. Incoming and outgoing water is supplied by freshwater and wastewater treatment plants through underground piping. The reaction vessel has an upper part and a jacket, which is heated by hydrogen gas. The vessel has a series of discharge ports on the upper part, and a conversion facility is located in an area of high greenhouse gas concentration. The barium hydroxide reacts with carbon dioxide to produce barium carbonate, which is sold along with the discharge water to generate revenue. The method provides a promising solution for mitigating the effects of climate change by reducing carbon emissions from the atmosphere.

The utility model discloses a carbon dioxide removal device for ammonia synthesis, and belongs to the technical field of ammonia production from natural gas. Comprising an absorption tower body, a first liquid outlet pipe arranged at the bottom end of the absorption tower body and a filtering assembly arranged at the liquid outlet end of the first liquid outlet pipe, the filtering assembly comprises a filtering box, a filtering barrel arranged in the filtering box, a liquid distribution disc arranged on the filtering barrel, a plurality of liquid distribution holes formed in the bottom wall and the side wall of the liquid distribution disc, and a rotating pipe arranged on the top wall of the liquid distribution disc, wherein the top end of the rotating pipe sequentially and rotationally penetrates through the top wall of the filtering barrel and the top wall of the filtering box, and the rotating pipe is connected with a rotating assembly arranged outside the filtering box; the second liquid outlet pipe is arranged on the side wall of the filter box; and the liquid outlet end of the first liquid outlet pipe is arranged in the rotating pipe and is rotationally connected with the rotating pipe. According to the utility model, sulfur powder, rust and other solid impurities in the rich liquor can be removed before the rich liquor is regenerated, so that the purity of barren liquor or semi-barren liquor obtained after regeneration is effectively improved, and the decarburization efficiency of the barren liquor or semi-barren liquor is improved.

This utility model discloses a carbon dioxide removal system, relating to the technical field of gas treatment systems. It includes a first adsorption tower, a second adsorption tower, a refrigeration compressor, a dryer filter, a condenser, a heat exchanger, an evaporator, and a base. The first and second adsorption towers are mounted on the base. The first outlet of the heat exchanger is connected to the evaporator via a first pipe. The evaporator is connected to both the first and second adsorption towers via a second pipe. The refrigeration compressor is connected to the condenser via a third pipe. The condenser is connected to the dryer filter via a fourth pipe. The dryer filter is connected to the evaporator via a fifth pipe. A humid air inlet is provided on the heat exchanger and connected to the compressor. By rationally combining the condenser, dryer filter, and condenser and adsorption towers via compressed air pipelines and skid-mounting them onto a single base, the advantages of both refrigerated dryers and desiccant dryers are integrated.

This utility model relates to a fixing kit and a carbon dioxide removal system. The fixing kit includes a base, a pedestal, and a vacuum device. The base has a mounting cavity and is used to support consumables. The pedestal is mounted on the base and encloses the mounting cavity. The vacuum device has an inlet and an outlet. The inlet is located inside the mounting cavity, and the outlet is located outside the mounting cavity, so as to create a negative pressure inside the mounting cavity. This fixing kit uses negative pressure to adsorb the pedestal, connecting the pedestal, consumables, and base. This ensures the secure installation of the consumables and the base, guaranteeing the stable operation of the carbon dioxide removal system. Furthermore, after the negative pressure is released, the pedestal and the base can be easily detached, facilitating the disassembly and replacement of consumables and avoiding the problems of loosening and detachment of the base and pedestal in related technologies.

One aspect of the atmospheric carbon dioxide separation and recovery apparatus disclosed herein includes: a plurality of adsorption treatment chambers for adsorption treatment of carbon dioxide contained in the atmosphere by contacting the atmosphere with particulate adsorbent material housed therein; and a regeneration treatment chamber for regeneration treatment of carbon dioxide removal from the adsorbent material by contacting vapor with the particulate adsorbent material housed therein, wherein the plurality of adsorption treatment chambers take in the adsorbent material that has been regenerated in the regeneration treatment chamber and use the taken-in adsorbent material for adsorption treatment, and the regeneration treatment chamber takes in the adsorbent material used for adsorption treatment in the plurality of adsorption treatment chambers and regenerates the taken-in adsorbent material.

A carbon dioxide capture system for a motor-vehicle is arranged to remove carbon dioxide from the atmosphere when the vehicle is in motion. The system has a carbon dioxide capture module mounted on a wheel arch of the vehicle, wherein the capture module includes an adsorbent cartridge made of adsorbent material suitable for retaining carbon dioxide, and a hollow casing containing the cartridge. The hollow casing has at least one inlet opening for the entry of an airflow into the casing, to be treated with the cartridge, and at least one outlet opening for releasing carbon dioxide-free air.