321 results about "Co2 storage" patented technology

Devices and methods are described for converting a carbon source and a hydrogen source into hydrocarbons, such as alcohols, for alternative energy sources. The influents may comprise carbon dioxide gas and hydrogen gas or water, obtainable from the atmosphere for through methods described herein, such as plasma generation or electrolysis. One method to produce hydrocarbons comprises the use of an electrolytic device, comprising an anode, a cathode and an electrolyte. Another method comprises the use of ultrasonic energy to drive the reaction. The devices and methods and related devices and methods are useful, for example, to provide a fossil fuel alternative energy source, store renewable energy, sequester carbon dioxide from the atmosphere, counteract global warming, and store carbon dioxide in a liquid fuel.

A carbon dioxide storage system includes a container and a conduit attached to the container for introducing or removing a carbon dioxide-containing composition from the container. A carbon dioxide storage material is positioned within the container. The carbon dioxide-storage material includes a metal-organic framework, which has a sufficient surface area to store at least 10 carbon dioxide molecules per formula unit of the metal-organic framework at a temperature of about 25° C.

The invention provides geopolymeric compositions intended for use in carbon dioxide injection or production wells or storage reservoirs and preferably in a supercritical carbon dioxide conditions. The geopolymeric composition is formed from a suspension comprising an aluminosilicate source, a metal silicate, an alkali activator, a retarder and / or an accelerator and a carrier fluid wherein the oxide molar ratio M2O / SiO2 is greater than 0.20 with M an alkali metal.

The invention discloses a supercritical carbon dioxide dyeing device, which comprises mainly a CO2 storage tank (H01), a dye kettle (H06), and a dyeing kettle (H07). Wherein, the dyeing technique comprises: cooling the CO2 from HO1 into liquid to send into preheater (HO5) connected to HO6 with carbon-dioxide high-pressure pump (HO4); sending supercritical carbon dioxide to HO7 by HO6; driving the dyed carbon dioxide to pass separator (HO8) and second condenser (HO9) and return to said storage tank (HO1). This invention can recycle 100% residual dye and carbon dioxide as dyeing medium, saves water and dye resource, and reduces pollution.

The invention relates to the technical field of shale gas exploitation, in particular to a liquid CO2 fracturing technology for a shale gas well. When the liquid CO2 fracturing technology is constructed, a fracturing pump truck, a sealed fracturing blender truck, a CO2 boosting pump truck, a measuring truck, a fracturing pipeline truck, a CO2 tank vehicle and a CO2 storage tank need to be arranged; the fracturing pipeline truck is provided with a pressure manifold and a high pressure manifold; and the measuring truck is provided with a monitoring instrument. The liquid CO2 fracturing technology is characterized in that the liquid CO2 fracturing technology is executed according to six steps of placing fracturing equipment and construction vehicles, testing the pressure, processing pre-acid, constructing liquid CO2 fracturing, closing the well after carrying out fracturing and opening the well for gushing and carrying out flowback after carrying out fracturing. The liquid CO2 fracturing technology for the shale gas well implements high flowback speed and short operation period and basically has harmlessness to a shale gas reservoir stratum.

The present invention provides a system for treating carbon dioxide, and a method by which such treated carbon dioxide can be stored underground at low cost and with high efficiency. The present invention' method for storing carbon dioxide underground includes: a step for pumping up to the ground groundwater from a pumping well in a deep aquifer, and then producing injection water. Carbon dioxide that has been separated and recovered from exhaust gas from a plant facility is changed into the bubbles. The bubbles are mixed with the injection water, and hereby produces a gas-liquid mixture a step for injecting into. The deep aquifer is injected into the gas-liquid mixture from the injection well. The method preferably further includes a step for dissolving a cation-forming material in the injection water, and a step for injecting the injection water, in which the cation-forming material is dissolved, into the deep acquifer at its top and above the place at which injection water has already been injected.

The invention discloses a method for evaluating the sealing capacity of an oil and gas field reservoir serving as a CO2 storage body at the middle and later periods of oil and gas field exploitation. According to the method, to overcome the defects of the prior art and solve the problems existing in the prior art, based on deep geological research of the storage body, the difference between the reservoir and an overlying strata is considered, a geology evaluating mark set is established and corresponds to log response characteristics, and then the problems existing in CO2 storage evaluation are solved within the oil field spreading range. The method for evaluating the CO2 geological storage body is based on geology evaluating marks and the log response characteristics and comprises the steps of (1) researching various geology evaluating mark parameters of the reservoir and the overlying strata of the geological storage body, (2) establishing the corresponding relation between the geology evaluating marks and the log response characteristics, (3) analyzing the main difference between the reservoir and the overlying strata on lithology and physical property and the cause of the difference, and (4) establishing the technological standard and method for evaluating the CO2 geological storage body of a certain oil field.

The present invention relates to solid delivery systems for storage, distribution, and delivery of carbon dioxide into beverages. More specifically, this invention is directed to methods and preparations for providing a powdered beverage formulation capable of sustained carbonation in aqueous solution and to methods for carbonating a beverage that sustainably releases carbon dioxide into the beverage.

The invention provides an unconventional CO2 fracturing site operation technology. The technology comprises the steps of (1) preparation of a fracturing truck; (2) the connection between a CO2 booster pump truck and a CO2 storage tank and a main fracturing truck; (3) the connection of high pressure lines; (4) pressure testing; (5) high pressure line sweeping; (6) circulatory pump cooling; (7) CO2 fracturing; (8) pressure release. By means of the technology, the risk of dry icing can be eliminated, the expansion explosion risk is eliminated, and the unconventional CO2 fracturing can be completed safely.

The invention relates to a mine liquid-CO2 fire preventing and extinguishing process and device for preventing and extinguishing fire by conveying liquid CO2 to an underground fire zone and injecting a fire zone by using the liquid CO2 and utilizing the liquid CO2 to asphyxiate oxygen in the fire zone, cool, decrease temperature and inertly suppress explosion. A mine liquid-CO2 fire preventing and extinguishing system comprises a liquid CO2 tank car (1), a liquid CO2 storage tank (2), a carburetor (10), a self-pressurization pipeline, a liquid inlet and outlet pipeline, and the like; and the fire preventing and extinguishing device comprises the liquid CO2 storage tank (2), the carburetor (10), the self-pressurization pipeline, the liquid inlet and outlet pipeline, and the like, wherein the self-pressurization pipeline comprises a self-pressurization liquid outlet pipeline and a self-pressurization gas intake pipeline and is combined with the carburetor (10) to form a self-pressurization system so as to realize the self comprehension of pressure in the tank. The invention solves the technical problem of the gasification and icing in the liquid CO2 tank and the pipeline conveying process, realizes safe transfer, storage, transmission and injection and has the advantages of high extinguishment speed, simpleness of operation, low cost, operation stability, remarkable fire extinguishment and prevention effects, wide practicability and the like.

The invention discloses a method and a device for preparing liquid CO2 (carbon diode) by cold energy of LNG (liquefied natural gas). The method comprises the following steps of pumping the LNG into a tube of a shell-and-tube heat exchanger, releasing the potential heat of the LNG in the tube of the shell-and-tube heat exchanger, cooling and liquefying the lower-temperature gaseous CO2, sending the gasifying byproduct of the LNG as a cold source into a multi-strand flow plate fin type heat exchanger, cooling the raw CO2, then sending into a CO2 compressor, cooling the outputted high-pressure and high-temperature CO2, raising the temperature of the LNG, and gasifying the LNG into the normal-temperature natural gas with the temperature of 10-20 DEG C; sending the cooled CO2 into a shell of the shell-and-tube heat exchanger, dividing the liquid CO2 flowing from an outlet of the shell of the shell-and-tube heat exchanger into two branches, sending one branch into a liquid CO2 storage tank, and sending the other branch into a dry ice machine to prepare carbon dioxide ice. The method has the advantages that the gradient utilization of the cold energy of the LNG is realized, and the utilization rate of the cold energy of the LNG is high; the preparation pressure of the liquid CO2 and the carbon dioxide ice is decreased to 0.6-1.0MPa by the cold energy of the LNG, the gaseous CO2 at the inlet of the compressor is cooled to the temperature of -40 to -30 DEG C, and finally the effect of saving the energy by more than 58% is realized in comparison with the effect of the common low pressure method.

The invention relates to a sea-area natural gas hydrate exploiting technology, in particular to a method and system for exploiting natural gas hydrates in sea area by combining geotherm with CO2 replacement. The method includes the steps: preparing injection wells and producing wells, exploiting the sea-area natural gas hydrate, and separating natural gas. The system includes an ocean exploiting platform, one or more producing wells and one or more injection wells, lower well mouths of the injection wells penetrate into the positions where fractured crack zones of the geothermal layer are located, and the lower well mouths of the injection wells are communicated with fractured cracks on the fractured crack zones of the geothermal layer; upper well mouths of the injection wells are communicated with a high-pressure injection pump, the high-pressure injection pump is communicated with a CO2 storage device through pipelines; lower well mouths of the producing wells penetrate into the positions where the fractured crack zones of the geothermal layer are located, and the lower well mouths of the injection wells are communicated with the fractured cracks on the fractured crack zones of the geothermal layer. Because of the structure, the method and system have the advantages that emission of greenhouse gas CO2 is reduced, the integrality of the sediment layer is maintained, and the geomechanics stability of the sediment layer is maintained.

The invention discloses a system for cycling power generation by means of a supercritical CO2 working medium. The system comprises a waste heat boiler system, an absorption refrigerating system and a liquid CO2 working medium supplementation system, wherein a CO2 circulating system comprises a first turbine, a second turbine, an electric generator and a first circulating pump; the outlet of a waste heat boiler is connected with the first turbine and the second turbine; the first turbine drives the electric generator to operate; the second turbine drives the first circulating pump to operate; the liquid CO2 working medium supplementation system comprises a liquid CO2 storage tank and a pressure pump; the outlet of the first turbine and the outlet of the second turbine are connected with a tube side inlet of a generator in the absorption refrigerating system; a second outlet of an evaporator is connected with the first circulating pump; the liquid CO2 storage tank is conveyed in a pipeline between a second outlet of the evaporator and the first circulating pump through the pressure pump; an outlet of the first circulating pump is connected with the waste heat boiler. The cycling power generation system is combined with the absorption refrigerating system to further reduce the condensing temperature and pressure of the CO2 working mediums and improve the acting capability of the working mediums in the turbines.

Methods for estimating the volume of the carbon dioxide stores of an individual's respiratory tract include determining a carbon dioxide store volume at which a correlation between corresponding signals of carbon dioxide elimination and an indicator of the content of carbon dioxide in blood of the individual is optimized. The estimate of the volume of carbon dioxide stores, which comprises a model of the respiratory tract, or lungs, of the individual, may be used as a transformation to improve the accuracy of one or both of the carbon dioxide elimination and carbon dioxide content signals. Transformation, or filtering, algorithms are also disclosed, as are systems in which the methods and algorithms may be used. The methods, algorithms, and systems may be used to accurately and noninvasively determine one or both of the pulmonary capillary blood flow and cardiac output of the individual.

The invention discloses a method and apparatus for producing a foamed product based on 3D printing. The apparatus mainly comprises a molding unit, a supercritical infiltration unit and a foaming unit, wherein the molding unit is a 3D printer and mainly comprises a three-dimensional ball screw sliding table, a molding platform, a 3D printer case, a plasticizing screw, a heating ring and a nozzle; the supercritical infiltration unit is mainly composed of a preheater, a booster pump, a CO2 storage tank and an infiltration vessel; and the foaming unit is mainly composed of a steam generator, a foaming case and a cover plate. The method comprises the following steps: printing a three-dimensional model via the molding unit according to product needs; then putting the three-dimensional model into the infiltration vessel in the supercritical infiltration unit and carrying out infiltration by using supercritical CO2; and carrying out steam foaming in the foaming case so as to obtain the foamed product. According to the method and apparatus provided by the invention, production stages are simplified to three production stages, so production cost and process complexity are reduced, and simplified production of foamed products with any complex structures can be realized.

The invention discloses a method for storing CO2 by using a goaf of an abandoned coal mine, and belongs to the technical field of geological storage of the CO2. The method is specifically as follows:CO2 gas obtained after separation and enrichment from a fixed emission source is compressed to a supercritical state, is then injected into the goaf of the abandoned coal mine, and is permanently stored by using the goaf, a downhole abandoned laneway and a chamber space; through arrangement of pressure measuring wells, the CO2 storage condition is monitored; by performing rock movement control, retaining and reinforcing separating coal columns, arranging separating walls, and grouting for blocking gaps, the safety of CO2 storage is guaranteed. By the method, the storage mechanism is simple, the CO2 injection resistance is small, the injection cost is low, the geological exploration engineering quantity is small, management is easy, future reuse of the CO2 is facilitated, high-pressure injection in the earlier stage can relieve surface subsidence, the existing drilled holes, wellbores and other engineering in a mine field can be reused to reduce the engineering quantity, and associationof centralized CO2 emission sources in large thermal power plants and the like with the coal mine facilitates local CO2 storage.

The invention concerns a method and a system for extracting and storing carbon dioxide of fumes derived from combustion of hydrocarbons in an apparatus designed in particular to produce mechanical energy. The system comprises: extracting means, in particular exchangers (11, 25) and a dehydrator (56), for extracting water from said fumes in liquid form at a pressure substantially equal to atmospheric pressure; cooling means, in particular an integrated cascaded refrigerating apparatus (18, 22, 25, 26, 28, 32, 33, 34, 39, 40), for cooling said fumes at a pressure substantially equal to atmospheric pressure and at a temperature such that the carbon dioxide passes directly from vapour state to solid state, through an anti-sublimation process; storage means, in particular a fixed (49) and / or removable (51) reservoir and suction means, in particular a pneumatic pump (48) for storing carbon dioxide in liquid form after defrosting.

Disclosed is a method of transporting CO2 by ship for the purpose of storage in the ocean. The CO2 is transported at a temperature between −25° C. and +25° C., and under a pressure that is sufficiently high for the CO2 to be in a liquid or supercritical state. The choice of temperature / pressure conditions for the CO2 enables the transport of CO2 one way to be effectively combined with transport of compressed natural gas (CNG) the other way. Ships can be used that have relatively cheap tubular containment equipment similar to the type normally used for CNG but with lower pressure and not subject to cyclic thermal and mechanical effects of pressurizing and depressurizing.

The invention relates to a system for testing sand carrying capacity of fracturing fluid. The system is characterized in that firstly a first gas cylinder and a second gas cylinder are respectively connected with the inlet of a gas purifier through a first valve and a second valve, the outlet of the gas purifier is sequentially connected with a volumetric flowmeter, a refrigeration system and a liquid CO2 storage tank, a third valve is connected between the refrigeration system and the liquid CO2 storage tank, the outlet of the liquid CO2 storage tank is connected with a fourth valve, a first pressure gauge, a fifth valve and a CO2 pump and then converges with a branch connected with a reagent tank and a reagent pump, a safety valve is connected at a junction between two branches, then a one-way valve, a preheater, a first thermometer and a second thermometer are sequentially connected, and then a horizontal sand carrying transport branch is entered to test the transport performance of the fracturing fluid or a vertical sand suspending transport branch is entered to test the sand suspending performance of the fracturing fluid. The invention further discloses a corresponding testing method, which is specially used for simulating and testing the sand carrying capacity of carbon dioxide anhydrous fracturing fluid at different additive proportions under different situations of temperature, pressure and displacement.

The present invention discloses a method for optimizing sensor network node location in a geological CO2 storage area. In the method, by analyzing data in a monitoring area, such as geological data, geographical data, and meteorological data, analyzing influence factors of a CO2 leakage event and determining a sensitivity partition, designing different coverage control schemes of monitoring sensor network nodes, or intensively or sparsely arranging sensor monitoring nodes, a coverage network is described and optimally expressed on the basis of Delaunay triangulation. In the method for optimizing sensor network node location in a geological carbon dioxide storage area, the arrangement density of wireless sensor network nodes can be dynamically adjusted according to geological and geographical features of a detection area, and the arrangement optimization of a dynamic monitoring sensor network for coal seam carbon dioxide injection area leakage can be realized. The method reduces node redundancy and communication overheads as much as possible, and has strong network coverage and network connectivity.

The invention relates to a regeneration system for a carbon-rich amine solution produced in carbon dioxide capture from a mixed gas and a method for using the same. This regeneration system is composed of a bipolar membrane electrodialysis apparatus and a carbon dioxide removal apparatus, wherein the bipolar membrane electrodialysis apparatus is composed of a bipolar membrane electrodialysis membrane stack fixed between an anode plate and a cathode plate, the carbon dioxide removal apparatus is composed of one or more hollow fiber membrane contactors, the inlet of the carbon dioxide removal apparatus is fluidly connected with the outlet of the acid chamber of the bipolar membrane electrodialysis apparatus, the outlet of the carbon dioxide removal apparatus is fluidly connected with the acid solution storage tank, and carbon dioxide gas removed by the carbon dioxide removal apparatus is collected in a carbon dioxide storage tank. In the invention, by treating a carbon-rich amine solution having heat stable salts with a combined apparatus of bipolar membrane electrodialysis and carbon dioxide removal, individual operation for conventional heat stripping and organic amine regeneration is avoided, the energy consumption of carbon capture is reduced, the process flow is simplified, and the overall net capture efficiency of carbon dioxide is improved.

A Capture Carbon Storage (CCS) Process for the economical capture of carbon dioxide from coal fuel gas, and the storage of the carbon dioxide as lipid oil or the use of the environmentally begin oil for transportation. The lipid oil may be refined into gasoline, biodiesel fuel, jet fuel, ethanol, and methane which provide a renewable energy resource for the United State's future energy needs. It is a new fuel form which has been both chemically and physically altered to reduce the emissions of carbon dioxide. It is a coal cleaning / upgrading process which produces a refined fuel, Hydrogen, that may be used to produce electricity and an environmentally begin biofuel for transportation. The renewable fuel will produce no carbon foot print at the internal combustion engine's exhaust pipe. The CCS Process will produce a 100% reduction in carbon dioxide (CO2) emissions into the atmosphere and thereby, stop the Global Warming.

The invention relates to a system for producing a clean energy. The system comprises a gasification device, a coking device, a shift reaction and hydrogen purification device, a gas purification device, hydrogen transporting equipment, a carbon dioxide storage device, an oxynitride treatment and water vapour recycling device, oxygen and oxygen-enriched air supplying equipment, heavy metal treatment equipment, slag separation equipment, a cement plant, a coal material plant and a water vapor storage tank. Due to the arrangement of the gas purification device, the shift reaction and hydrogen purification device, a coal tar separation device, a cracking device and a coal gas purification device, the coal gas generated by coal gasification and coking is purified and converted into the hydrogen, thereby providing the valuable clean energy. The hydrogen serves as a heating fuel for the whole system, so that the carbon dioxide is not generated during the combustion process in the heating manner; and the fuel gas generated by the combustion is discharged after oxynitrides in the fuel gas are removed. Therefore, pollutants are reduced and avoided being generated and diffused. By utilizing a wall-dividing-type rotary kiln, the fuel gas generated by the combustion is prevented from polluting, coking and gasifying products.

The invention belongs to the technical field of environmental protection and pollution control, and in particular relates to a device for remediation of organic contaminated soil by using supercritical CO2 fluid and a remediation method. The device of the invention is composed of a CO2 storage tank, a pressure pump, an inlet valve, a pressure monitoring device, a soil pretreatment device, a stirring extraction vessel, a temperature control device, a pressure reducing valve, a gas-liquid separator, an organic pollutants storage tank and an organic pollutants filtering device. The method of the invention has the characteristics such as short extraction time, less solvent consumption, easy operation, high extraction efficiency, no pollution, and highly selective extraction realized through changing extraction conditions. Compared with traditional extraction techniques such as Soxhlet extraction, ultrasonic extraction, and accelerated solvent extraction, the method of the invention has the advantages such as short extraction time, no need of pre-concentration and purification, and no secondary pollution generated.