368 results about "Co2 storage" patented technology

The invention discloses a goaf CO2 sealed storage warehouse construction and grouting filling fire preventing and extinguishing method, and belongs to the technical field of goaf filling. The goaf CO2 sealed storage depot comprises a CO2 storage depot unit, a solid waste filling column and inflation-grouting equipment, an inflation bag is arranged in the CO2 storage depot unit, the inflation bag is movably connected in the CO2 storage depot unit, the CO2 sealed storage depot is constructed in the goaf through the inflation bag, alkaline solid waste and mineralized slurry, and the storage depot is used for supporting a roof rock stratum and storing CO2. Large-scale recycling of the alkaline solid waste can be achieved through the sealed storage warehouse, the storage warehouse is used for supporting the goaf roof rock stratum and storing CO2, the roof rock stratum is prevented from collapsing and endangering mine production safety, CO2 emission is reduced, the greenhouse effect is improved, and cooperative treatment of goaf fire and CO2 storage is achieved.

The invention provides a CO2 sequestration simulation method based on transfer learning and a physical information neural network, which aims at a geological carbon dioxide sequestration process by combining the transfer learning and the physical information neural network, and comprises the following steps of: simulating and generating data by using a Matlab oil reservoir simulation tool box, and constructing a neural network basic model; the physical law of carbon dioxide migration in the porous medium is trained and learned through coarse resolution, then fine tuning is performed on the generated actual geological model data by adopting a migration learning strategy to adapt to different geological structures and injection conditions, and a neural network loss function is embedded in combination with a Darwest equation and a mass conservation equation to obtain a carbon dioxide migration model. Compared with a traditional numerical simulation method, the method has the advantages that the calculation efficiency is remarkably improved while the prediction precision is kept, and the method is suitable for carbon dioxide sequestration optimization and environmental risk assessment under complex geological conditions and has good industrial popularization value and environmental benefits.

The invention is applicable to the technical field of coal bed gas development and geological sequestration, and provides a THMC multi-field coupling simulation method and system for a process of displacing CH4 by coal bed CO2, and the method comprises the following steps: collecting multi-source parameter information of a target coal bed; according to the multi-source parameter information, constructing a coal seam structure model comprising a matrix and a crack system; constructing a control equation system based on the coal seam structure model, and introducing a multi-field coupling mechanism to obtain a fully-coupled mathematical model; performing numerical solution on the fully-coupled mathematical model to obtain a spatio-temporal evolution result of the key field variables; and according to the spatio-temporal evolution result of the key field variable, evaluating the index of the target coal seam. According to the invention, a heat-force-gas-chemical multi-physical field full-coupling simulation system is constructed, so that the CH4 recovery rate and the CO2 storage stability can be accurately predicted. The method is suitable for gas injection-storage coupling optimization of a multi-coal-rank and low-permeability coal seam, and has high precision, high adaptability and remarkable engineering guidance value.

The invention discloses a deep coal seam CO2 storage potential calculation method based on coal seam geological characteristics, and belongs to the technical field of CO2 geological storage. The method comprises the following steps: firstly, acquiring excess adsorption quantity of CO2 adsorbed by a coal seam under different time actions, and constructing an adsorption quantity calculation model under different time parameters by utilizing a relationship between the excess adsorption quantity and absolute adsorption quantity; then fitting porosity data under different adsorption times, and constructing a coal quality unit mass CO2 free quantity model; then, according to the CO2 solubility calculation model and the characteristic parameters of the target coal seam, a unit mass CO2 dissolved amount model is constructed; then, data of the relation between the migration distance of CO2 in the coal seam and time is taken, and a time-migration distance formula is fitted; and finally, establishing a unit mass coal sample supercritical CO2 storage capacity calculation model, and constructing a theoretical storage amount and actual storage amount equation of CO2 geological storage. By adopting the calculation method, a theoretical reference can be provided for shut-down coal mine CO2 sequestration development and utilization strategy research and sequestration address selection.

The invention belongs to the technical field of carbon dioxide capture and utilization and geological sequestration, and discloses a numerical simulation method for migration of CO2 in stratum.The method comprises the steps that an actual stratum complex geological model is constructed, and then a numerical simulation model is obtained; finely adjusting the numerical simulation model to limit fluid channeling and external substance and energy exchange, and ensuring rapid convergence of operation; the injection of CO2 in different layers is simulated, and the influence of the injection layers on the migration law is analyzed; cO2 injection at different injection speeds and temperatures is simulated to analyze the influence of the injection speeds and temperatures on the migration law; cO2 is simulated to be injected at different injection temperatures under the condition of consistent initial salt concentration, and the influence of dissolved salt on migration and dissolution rules is analyzed; the injection of CO2 at different positions of the reservoir is simulated, and the influence of the injection well position on CO2 storage is analyzed; and optimizing well position arrangement to obtain an optimal well pattern scheme. According to the method, the results of various influence factors are comprehensively analyzed, and then the migration rule of CO2 in the stratum is accurately obtained.

The invention provides a ship LNG fuel supply and tail gas carbon dioxide capture system. The ship LNG fuel supply and tail gas carbon dioxide capture system comprises an LNG storage tank, a CO2 separation device, a CO2 compressor, an ejector, an LNG vaporization heater, a mixed gas heat exchanger, a flash tank, a liquid CO2 storage tank, a flue gas heat exchanger and an engine. According to the system, LNG cold energy and engine tail gas heat energy can be effectively utilized, and the energy consumption of the system is reduced.

The invention relates to compressed carbon dioxide energy storage equipment, a carbon dioxide storage device and a control method, a plurality of independent carbon dioxide storage air bags are detachably installed on a supporting frame, and the carbon dioxide storage air bags can serve as floating assisting air bags of water equipment after storing air; each carbon dioxide storage air bag is independently monitored and controlled through an inflation and deflation control component, the pressure of air stored in each air bag can be monitored in real time, and the storage and release amount of carbon dioxide can be quickly and flexibly adjusted; the displacement sensor monitors the posture change of the supporting frame in real time, the controller adjusts the inflation and deflation strategy or the system operation state in time according to the current air pressure state of each carbon dioxide storage air bag and the posture change of the supporting frame, and air bag damage or system faults caused by structural instability are effectively prevented. A plurality of independent carbon dioxide storage air bags in the air bag type storage device can be flexibly arranged on a supporting frame to adapt to different terrains and space constraints.

The invention discloses a method for simulating and calculating the CO2 burying rate of an exhausted gas reservoir, which comprises the following steps: S1, acquiring rock core, formation water, methane and CO2 samples, and measuring the basic physical properties of each sample; s2, under the formation condition, the rock core is saturated with formation water and subjected to methane displacement till no water is discharged; s3, CO2 displacement is conducted on the rock core, and CO2 injection and extraction data in the process are recorded till the depletion state is achieved; s4, under the constant pressure condition, the rock core is subjected to standing treatment, and the basic physical property of the rock core subjected to standing treatment is measured; and S5, establishing a CO2 burying rate calculation model, and calculating the CO2 burying rate in combination with the parameters obtained in the steps. According to the method, the CO2 burying rate can be accurately calculated, and evaluation indexes and references are provided for the safety of CO2 geological storage.

The invention discloses a device and a method for preparing a negative carbon cementing material by a wind power suspension semi-dry method, and belongs to the technical field of comprehensive utilization of solid waste resources. The method for preparing the negative carbon cementing material comprises the following steps: keeping the humidity and CO2 concentration of a reaction system, and carbonizing the wet steel slag micro-powder in the reaction system while the wet steel slag micro-powder is in a suspended state under the action of wind power, so as to obtain the negative carbon cementing material. The CO2 storage rate of the prepared negative carbon cementing material is equivalent to that of wet carbonization, the CO2 storage rate of the negative carbon cementing material is 8-12%, and the bulk density is 1.05-1.2 g / cm < 3 >. In the preparation process, the water resource consumption is extremely low, no wastewater is discharged, and water resource waste and wastewater discharge pollution are avoided.

The invention discloses a CCUS experimental device and method for carbon dioxide flooding and storage, and relates to the technical field of petroleum engineering. The device comprises a three-dimensional oil reservoir physical model, a fluid injection system, a fluid collecting and metering system, a resistivity monitoring system and a fluid migration observation system. The three-dimensional oil reservoir physical model is used for constructing a simulated stratum, and a development well pattern system is installed on the simulated stratum; the fluid injection system is connected with the injection well; the fluid collecting and metering system is connected with the production well; the resistivity monitoring system is provided with a plurality of monitoring points on the simulated stratum; the fluid migration observation system is used for observing a migration path of supercritical carbon dioxide in the three-dimensional oil reservoir physical model; and the distributed optical fiber monitoring system is arranged in the simulated stratum. According to the device and the method, oil reservoir water injection exploitation and CO2 injection oil displacement and CO2 storage stability simulation experiments in the later development period can be realized.

The invention relates to the technical field of methanol resource utilization, and discloses a system for preparing methanol based on SOEC-CH4 electrolysis, which is characterized in that a cathode subsystem main body reacts to generate water vapor and H2 mixed gas, the water vapor and H2 mixed gas are condensed and separated to obtain H2, and most of H2 is conveyed to an H2 storage buffer tank and stored; the anode subsystem for preparing CO2 comprises a CH4 tank, an anode subsystem main body and an electrolytic bath anode of an SOEC electrolytic bath which are communicated in sequence, and the anode subsystem main body reacts to generate water vapor, CH4 and CO2 mixed gas; the mixed gas of the water vapor, CH4 and CO2 is subjected to condensation and adsorption separation to obtain CO2, and most of CO2 is conveyed to a CO2 storage buffer tank to be stored; and the methanol preparation subsystem reacts to obtain methanol. According to the system for preparing methanol through electrolysis, methane is introduced to prepare carbon dioxide, the technical problems of high energy consumption and low comprehensive utilization rate of waste heat and wastewater are solved, and cost is greatly reduced to prepare methanol.

The invention discloses a storage medium and a CO2 storage site escape emission calculation method, device and equipment. The method comprises the steps that after a target monitoring area is gridded, the emission amount of carbon dioxide escaping from a storage bottom layer to the ground surface in each grid is obtained; accumulating the carbon dioxide emissions of the grids to generate CO2 geological dissipation emissions of the target monitoring area in a preset statistical period; acquiring monitoring data of each preset point location; according to the monitoring data, the emission amount of carbon dioxide escaping in the conveying process of the carbon dioxide separated from the produced gas is calculated through a preset algorithm; according to the CO2 geological dissipation emission and the emission of the carbon dioxide dissipated in the conveying process of the carbon dioxide separated from the produced gas, the dissipation emission of the CO2 storage site is calculated. According to the method, the CO2 geological dissipation emission amount and the carbon dioxide emission amount dissipated in the conveying process are added, and the CO2 storage site dissipation emission amount of the whole target monitoring area in the statistical period is comprehensively and accurately obtained.

The invention discloses a three-dimensional multi-source data fusion CO2 burying monitoring system construction method. The method comprises the following steps: S1screening CO2 burying leakage high-risk parts; s2, identifying and monitoring a CO2 leakage mode in a key risk area; the method is suitable for the technical field of carbon capture, utilization and storage, a CO2 burying monitoring system based on multi-source data fusion is established, a CO2 monitoring method wide in adaptability is formed, the problems that a single monitoring method is poor in adaptability and small in monitoring range are solved, and support is provided for safe implementation of CCUS engineering.

The invention discloses a coal-fired unit energy storage coupling carbon capture system and method based on calcium circulation, and aims to realize efficient and cheap capture of CO2 in flue gas while performing energy storage peak regulation of a coal-fired unit. The system comprises main equipment such as a calcination / heat absorption reactor, a pressurized carbonation / heat release reactor, a CaCO3 storage tank, a CaO storage tank and a CO2 storage tank, and auxiliary equipment such as a gas booster compressor, residual pressure power generation equipment, an electric heating module, a dust remover, a gas cooler, a solar gas heater and a smoke-CO2 heat exchanger. According to the method, electric energy of green electricity or valley electricity and heat energy of high-temperature flue gas of a boiler are converted into chemical energy by adopting the cyclic calcination characteristic of CaCO3-based particles and stored in the CaCO3-based particles, and the chemical energy is released again in the form of heat energy when a unit supplies heat to the outside or a power grid uses electricity at the peak. The system has high operation flexibility and economical efficiency.

The invention discloses a land-sea integrated full-process CO2 geological utilization and storage project technical economic evaluation method and tool. The method comprises the following steps: S1, evaluating and delimiting a full-process CO2 geological utilization and storage range; step S2, an evaluation process; s3, selecting a full-process CCUS technical scheme; and S4, carrying out full-process CCUS technical economic evaluation. The invention relates to the technical field of environmental science and engineering. According to the land-sea integrated full-process CO2 geological utilization and storage project technical economic evaluation method and tool, the problem of how to obtain information such as a technical scheme, cost budget, project layout and planning of a full-process CO2 geological utilization and storage project suitable for an enterprise or a technical and economic environment under the condition of lacking CO2 storage project experience and data is solved; and the feasibility of project development is provided.

The invention provides a high-efficiency and low-energy-consumption carbon capture system used before combustion of an LNG (Liquefied Natural Gas) or methanol fuel ship, which comprises an air separation device, a gas generator, a shift reactor, an on-board boiler, an absorption tower, a heat exchange system, a desorption tower, a CO2 storage tank, a hydrogen fuel cell, a waste heat recovery device, a steam turbine and a condenser, a membrane separation module is arranged at the top or the upper half part of the absorption tower, is connected with the absorption tower body through a pipeline and is used for realizing separation and purification of hydrogen. According to the system, on one hand, energy consumption can be reduced through effective waste heat management, and on the other hand, CO2 and H2 are effectively separated through a separation and purification technology, so that high-purity CO2 and H2 are obtained and are conveniently stored and supplied to a hydrogen fuel cell.

The invention belongs to the technical field of carbon dioxide storage and utilization, and particularly relates to a stainless steel oil casing for carbon dioxide flooding enhanced oil extraction and a manufacturing method thereof. The stainless steel oil casing comprises the following chemical components in percentage by weight: less than or equal to 0.03% of C, 0.15%-0.3% of Si, less than or equal to 0.010% of P, less than or equal to 0.005% of S, 14.0%-18.0% of Cr, 0.5%-2% of Mn, 2.0%-3% of Ni, 1.0%-3.0% of Mo, 0.20%-0.30% of N, 0.5%-1.0% of Cu, 0.025%-0.1% of Nb, 0.015%-0.025% of V, 0.001%-0.003% of Ca, 0.01%-0.03% of Re and the balance of Fe and inevitable impurities. The yield strength of the stainless steel oil casing ranges from 758 MPa to 931 MPa, the tensile strength is larger than 862 MPa, the ductility is larger than or equal to 30%, the stainless steel oil casing has good obdurability matching and excellent corrosion resistance and low-temperature impact toughness, the applicable service temperature range is-50 DEG C to 180 DEG C, the stainless steel oil casing can be applied to the low-temperature environment caused by injection-production yield increase after carbon dioxide capture, and the service life of the stainless steel oil casing is prolonged. And two or three of carbon dioxide, hydrogen sulfide and chloride ions coexist in the corrosive medium working condition.

The invention discloses a zero-carbon method for strengthening coal seam gas recovery and CO2 storage by using flue gas residual heat in the technical field of residual heat utilization, gas extraction and carbon emission reduction. The zero-carbon method comprises the following steps: step 1, collecting high-temperature flue gas in a power plant; step 2, performing high-temperature CO2 concentration-compression; step 3, reservoir evaluation and area selection; 4, designing and constructing a horizontal well; 5, high-temperature CO2 injection and joint control energy increasing are conducted, specifically, high-temperature CO2 is injected into a preset section through a pump, the injection pressure and the injection speed are adjusted through the joint control energy increasing technology, and the diffusion range and the diffusion speed of CO2 are controlled; 4, gas recovery and CO2 storage: high-temperature CO2 is used for providing energy to promote gas desorption on one hand, and the high-temperature CO2 and CH4 in the adsorption state are subjected to competitive adsorption on the other hand. The method is simple and easy to operate, the coal seam gas partial pressure is reduced through CO2 injection, the recovery efficiency is improved, CO2 can be adsorbed by a coal seam and stored in a reservoir, and geological storage of CO2 is achieved.

A method for predicting CH4 production and CO2 sequestration in a CO2-ECBM process belongs to the field of natural hydrogen resource exploration, and is technically characterized by comprising the following steps: constructing a multiphase and multicomponent coupling model for describing the migration process of water, methane and carbon dioxide of a stratum coal bed gas reservoir; the method comprises the following steps: constructing a geologic model of a stratum coalbed methane reservoir, performing grid division on the geologic model to obtain a plurality of grid units reflecting different spatial distribution positions of the coalbed methane reservoir, and setting initial conditions and boundary conditions of the geologic model; and according to the multiphase and multicomponent coupling model, solving spatio-temporal evolution characteristics of pressure and concentration of water, methane and carbon dioxide of each grid unit of the geologic model to obtain distribution in time and space. According to the method, the influence of the underground water in the coal bed gas on the migration behavior of methane and carbon dioxide is fully considered, the limitation of prediction result deviation caused by neglecting the effect of the underground water in the existing research is overcome, and the accurate prediction of the methane yield and the carbon sequestration amount in the CO2-ECBM process is realized.

The invention discloses a fuel gas supply and carbon capture system, which covers the whole process flows of fuel gas supply, CO2 capture, CO2 compression, CO2 liquefaction, CO2 storage and the like, and fully utilizes the cold energy of BOG (Boil Off Gas) from an LNG (Liquefied Natural Gas) cabin for cooling the BOG compressed by a BOG compressor, so that an additional intercooler, an aftercooler and a fresh water cooling system are not needed; the heat energy of the compressed BOG and the compressed CO2 is fully utilized to heat the BOG from the LNG cabin, so that the temperature of the BOG entering the BOG compressor meets the air inlet temperature requirement of a normal-temperature compressor, and therefore, the BOG compressor can adopt the normal-temperature compressor; heat energy of waste gas of the dual-fuel engine is fully utilized to heat rich liquid, so that additional heating media and heat sources are not needed; the cold energy of BOG from the LNG cabin is fully utilized and used for liquefying CO2, and therefore extra cooling media and cold sources are not needed.

The invention belongs to the technical field of ships, and provides a large bulk cargo ship high-pressure CO2 storage system based on seawater cold insulation, which comprises a high-pressure storage tank, a storage tank cavity, a temperature sensor, a control unit, a supercharging device, a pressure sensor, a cooling device, an electromagnetic valve, a safety valve, a seawater valve, a seawater pump, an inlet valve, a release valve, a return valve, a drain valve and a void chamber. CO2 is pressurized, seawater is utilized for sufficient heat exchange, the pressure of the high-pressure storage tank is at the lowest pressure corresponding to the temperature of the seawater, power consumption of the pressurizing device is greatly reduced, and compared with a low-temperature CO2 liquefaction mode which needs large low-temperature refrigeration power consumption, the high-pressure storage tank does not need to consume power for refrigeration and heat preservation, the power consumption is lower. And meanwhile, liquefied CO2 is stored in the high-pressure storage tank, and seawater is utilized to fully exchange heat with the liquid CO2 in the high-pressure storage tank, so that the CO2 in the high-pressure storage tank is always kept in a liquid state, and the condition that the weight of the CO2 loaded in a single high-pressure storage tank is reduced due to the fact that the CO2 is in a gaseous state is avoided.

The present invention relates to an apparatus for supercritical processing of a substrate and a method for processing a substrate, the apparatus for supercritical processing of a substrate comprising two or more CO2 storage chambers, one or more carbon dioxide supply devices, one or more supercritical processing chambers, and a CO2 recovery device, one carbon dioxide supply device can be connected with one or more than two CO2 storage chambers through a liquid CO2 supply pipeline, and the CO2 storage chambers are connected with the supercritical treatment chamber through a supercritical CO2 supply pipeline; according to the processing device, more than two parallel CO2 storage chambers are arranged, liquid CO2 can be converted into a supercritical CO2 state, in the substrate processing process, CO2 fluid in the supercritical state can be continuously supplied to the subsequent supercritical processing chambers through repeated switching between the CO2 storage chambers, and the CO2 fluid in the supercritical state can be continuously supplied to the subsequent supercritical processing chambers. Therefore, continuous processing of the substrate in the supercritical processing chamber is realized.

The invention relates to the technical field of coal mine gas control and CO2 geological storage, and particularly discloses a soft coal seam dynamic fracture self-adaptive CO2 displacement-anti-reflection integrated system which comprises a dynamic fracture monitoring unit, a CO2 collaborative anti-reflection unit, a self-adaptive regulation and control unit and a safety protection unit. The dynamic fracture monitoring unit is used for capturing coal seam fracture development dynamics and gas injection process parameters in real time; the self-adaptive regulation and control unit is in communication connection with the dynamic fracture monitoring unit, and the CO2 synergistic anti-reflection unit is in control connection with the self-adaptive regulation and control unit and is used for realizing CO2 enhanced anti-reflection displacement; the safety protection unit is used for guaranteeing system operation safety. According to the method, real-time adaptation of the coal seam fracture state and the injection-production parameters is achieved, the problems that in a traditional fixed parameter mode, the displacement efficiency attenuation is fast, and the coal body stability is poor are solved, the CH4 recovery rate and the CO2 storage rate are increased, and the safety and high efficiency of soft coal seam gas control operation are guaranteed.

The utility model provides a flue gas carbon dioxide trapping device which solves the problems that a flue gas carbon dioxide trapping device is complex, high in energy consumption and low in concentration of trapped carbon dioxide. The device comprises a dust settling chamber, an absorption regeneration tower, a liquid storage tank and a CO2 storage tank, a flue gas inlet and a flue gas outlet are formed in the dust settling chamber; a plurality of absorption units are arranged in the absorption regeneration tower from bottom to top, and each absorption unit comprises a filler assembly and a spraying assembly from bottom to top; the filler assembly is filled with a solid adsorbent and is provided with a heating assembly, and the spraying assembly sprays water into the filler assembly; a liquid outlet, a gas outlet and an absorption gas inlet are formed in the absorption regeneration tower; the flue gas outlet is communicated with the absorption gas inlet; the gas outlet is communicated with the CO2 storage tank and the atmosphere at the same time; a water inlet, a reflux inlet and a water outlet are formed in the liquid storage tank; the liquid outlet is communicated with the reflux inlet, and the water outlet is communicated with the spraying assembly.

To provide a technique for improving the utilization rate of carbon dioxide in a fuel gas production system.SOLUTION: The fuel gas production system includes a storage device including a recovery device configured to recover carbon dioxide, a recovery unit configured to recover carbon dioxide separately from the recovery device, and a storage unit configured to store the carbon dioxide recovered by the recovery unit, a fuelization device configured to supply hydrogen and at least one of the carbon dioxide recovered by the recovery device and the carbon dioxide stored by the storage device to a reactor to generate fuel gas, and a control unit configured to control the storage device to supply the carbon dioxide recovered by the recovery unit to the storage unit when a differential pressure becomes smaller than a differential pressure threshold.SELECTED DRAWING: Figure 4

A gas supply and carbon capture system, comprising an LNG tank, a BOG compressor set, a dual-fuel engine, a CO2 capture unit, a CO2 compressor, a heat exchanger, and a CO2 storage tank, wherein the LNG tank is used for storing liquid LNG, BOG formed at the inner top of the LNG tank is fed to a cold side of the heat exchanger; the heat exchanger is used for heat exchange between pressurized CO2 and the BOG, cold energy of the BOG is utilized to liquefy the CO2, the obtained liquid CO2 is stored in the CO2 storage tank, and the BOG having a higher temperature after the heat exchange is sent to the BOG compressor set; and the BOG compressor set is used for pressurizing the BOG having a higher temperature and then delivering the BOG to the dual-fuel engine for combustion, and the BOG compressor set employs normal-temperature compressors. By means of the system, the cold energy of the BOG from the LNG tank is fully utilized, and the temperatures of the BOG entering the BOG compressors are caused to meet an inlet temperature requirement of the normal-temperature compressors.

The invention discloses a supercritical CO2 centrifugal compressor and turbine performance test combined test bench system and method. The device is mainly composed of a compressor, a turbine, an electric heater, a cooler, a surge tank, a CO2 storage tank, valves and pipelines, a motor drives the compressor through a gearbox and is connected with a rotating shaft of the turbine through a clutch, and a main circulation loop is sequentially connected with the compressor, the turbine, the cooler, the surge tank and the electric heater in series. Through cooperation of bypass valve switching, clutch separation and reunion and a system control strategy, seamless switching of five test modes can be achieved without shutdown or pipeline disassembly and assembly, and the five test modes comprise a turbine connection and independent compressor performance test, a turbine performance test and a key component performance test. And a complete supercritical CO2 Brayton cycle system stable operation and control strategy verification test is carried out. The system has the characteristics of high efficiency and high test continuity, and provides a multifunctional and low-cost comprehensive test platform for research and development of a supercritical CO2 power device.

This invention discloses a CO2 direct air capture system and method for increasing CO2 partial pressure. The system includes a first air pump, a second air pump, a microbial fuel cell device, a CO2 capture device, a rich liquid desorption unit, and a CO2 storage unit. The microbial fuel cell device includes a reactor housing, a proton exchange membrane, wires, and external circuitry. The first air pump is located outside the microbial fuel cell device and pumps ambient air into the cathode chamber. A jacket is provided outside the reactor housing to enclose the reactor housing. The CO2 capture device is a sealed housing with a liquid inlet, a liquid outlet, an air inlet, and an air outlet. The air outlet of the cathode chamber of the microbial fuel cell device is connected to the air inlet of the CO2 capture device via a pipe, and a second air pump is installed on the pipe. The rich liquid desorption unit includes a battery waste heat heating device and an electrically heated desorber. The CO2 storage unit includes a CO2 compressor and a CO2 storage container.

The invention discloses a carbon dioxide sequestration monitoring method and device based on InSAR and distributed optical fibers. The method comprises the following steps: acquiring first earth surface deformation data of a CO2 sequestration field and a target area by using a satellite time sequence InSAR; the method comprises the following steps: acquiring temperature field data of a target area in real time by using a distributed optical fiber sensing system arranged in a CO2 storage field; performing reverse correction on the earth surface deformation data by taking the temperature field data as a calibration reference to obtain corrected second earth surface deformation data; and determining a potential CO2 leakage abnormal area in the target area based on the temperature field data and the second earth surface deformation data. According to the invention, the problem of insufficient monitoring precision of single satellite remote sensing in a complex terrain area is solved, and high-precision and omnibearing monitoring of a CO2 storage field is realized.

A supercritical carbon dioxide cycle power generation system and method based on spectral modulation is described. The system consists of a solar heating section, a carbon dioxide storage section, a compression section, and a power generation section. The solar heating section includes a radiant heater and a field of mirrors; the carbon dioxide storage section includes an energy balancer (2); the compression section includes a drive motor, a compressor, a cooler, and a regenerator; and the power generation section includes a turbine and a generator. The present invention utilizes a spectral modulation coating to adjust the solar visible spectrum to the infrared band absorbable by carbon dioxide, and exploits the rapid temperature rise properties of solid particles absorbing solar energy. This allows the carbon dioxide to be rapidly heated to a high temperature through radiation-coupled convection before participating in the power generation cycle. A supercritical energy balancer is also provided to balance the intermittent nature of solar energy and to reuse abandoned electricity at night.