13 results about "Carbon dioxide absorbent" patented technology

The invention discloses a two-phase carbon dioxide absorbent based on ionic liquid and application of the two-phase carbon dioxide absorbent. The two-phase carbon dioxide absorbent based on the ionic liquid is prepared from 9 to 21 parts of tetramethyl ammonium hydroxide glutamate, 14 to 21 parts of diethylenetriamine, 50 to 65 parts of N, N-dimethylethanolamine and 9 to 11 parts of water. According to the absorbent, the CO2 loading capacity is improved through the synergistic effect of an alkaline site of the ionic liquid and amine in the absorption stage, and an acid site of the ionic liquid serves as a built-in proton donor in the regeneration stage to promote decomposition of an absorption product, so that high absorption capacity and low regeneration energy consumption are synergistically achieved. The absorbent is high in COO absorption capacity, low in regeneration energy consumption, low in regeneration temperature and good in cycling stability, and an innovative solution is provided for solving the high-energy-consumption bottleneck of a traditional amine method carbon capture technology.

The present invention relates to a method for producing a carbon dioxide absorbent and a desulfurization catalyst, the method comprising the steps of: (S10) introducing an illite powder into a reaction bath storing water heated to 40 to 100° C., followed by stirring; (S20) introducing sodium hydroxide into the reaction bath, followed by stirring; (S30) separating and filtering a supernatant from the reaction bath; and (S40) separating a precipitate from the reaction bath.

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

The application provides a polyurethane mortar floor paint, which comprises the following components: component A: high-functionality castor oil modified polyol, low-functionality castor oil modified polyol, surfactant, polyether polyol, water; component B: high-functionality castor oil modified polyol, low-functionality castor oil modified polyol, single-walled carbon nanotube, dispersant, surfactant, water; component C: isocyanate curing agent; component D: sand, cement, carbon dioxide absorbent; component E: color paste; the functionality of the high-functionality castor oil modified polyol is 2.0-3.5, and the viscosity of the high-functionality castor oil modified polyol at 25 DEG C is 200-1000 mPa.s; the functionality of the low-functionality castor oil modified polyol is 1-1.2, and the viscosity of the low-functionality castor oil modified polyol at 25 DEG C is lower than 40 mPa.s. The high-gloss long-acting anti-static polyurethane mortar floor paint has excellent and long-lasting conductive performance, can be thinned for construction, realizes high-gloss coating, and is suitable for more scenes.

The present invention aims to provide an indoor carbon dioxide recovery device that is installed indoors and recovers carbon dioxide contained in the air. [Solution] An indoor carbon dioxide recovery device 1 for recovering carbon dioxide contained in the air, installed indoors, comprises a hollow housing 2 and a carbon dioxide absorbent 3 disposed inside the housing 2. Furthermore, it is provided with a first opening 21 communicating with the lower side of the internal space of the housing 2 and a second opening 22 communicating with the upper side of the internal space inside the housing 2.

In this carbon dioxide immobilization method, a cured cement body (10) is impregnated with a carbon-dioxide-absorbing liquid containing a carbon dioxide absorbent (20) in order to support the carbon dioxide absorbent (20) on the cured cement body (10) and obtain a cured cement body (1) for carbon dioxide immobilization; and the cured cement body (1) for carbon dioxide immobilization is brought into contact with the atmosphere and the carbon dioxide contained in the atmosphere is immobilized in the cured cement body (1) for carbon dioxide immobilization.

A regenerable carbon dioxide scrubber includes at least a first housing compartment including an inlet, an outlet, and an interior region. A sorbent material is located within the interior region of the first housing compartment, in which the sorbent material (a) attracts and / or retains carbon dioxide from an air supply passing through the sorbent material at an operating temperature below about 100° C. and (b) releases carbon dioxide at a regenerating temperature above about 150° C. A rebreather including the regenerable carbon dioxide scrubber may be used to scrub carbon dioxide from a user's exhaled air.

A method for reusing a carbon dioxide absorbent material according to one embodiment of the present disclosure comprises supplying a structure that contains one or more carbon dioxide absorbent materials, which have absorbed carbon dioxide, to a supply-receiving object, and the carbon dioxide absorbent material is a metal or a metal compound.

This disclosure relates to a method for treating substances ranging from 1.0 to 1.2 kg / cm³. 2 A method for regenerating a carbon dioxide absorbent solution using vapor condensate generated by a high-pressure regenerator (57) operating under pressure. The method includes the steps of: a) capturing carbon dioxide in a carbon dioxide absorption (56) unit using the carbon dioxide absorbent solution; b) feeding the absorbed carbon dioxide and the carbon dioxide absorbent solution generated in step a) into the high-pressure regenerator (57); and c) applying a vapor condensate at a pressure ranging from 3.2 to 3.5 kg / cm³. 2 Low-pressure steam is supplied to a steam reboiler (58) under pressure to provide heat to the high-pressure regenerator (57), thereby producing steam condensate and regenerated carbon dioxide absorbent solution; and is characterized by further comprising the step of: d) supplying the steam condensate produced in step c) to a degasser (59) to produce an aqueous solution suitable for producing steam with an oxygen content ranging from 7 ppb to less than 20 ppb. This disclosure further relates to a system for performing the methods of this disclosure and to the use of the system in performing the methods of this disclosure. This disclosure further relates to a method for modifying a system further comprising a process condensate stripper and a water demineralization unit to a disclosed system.

This invention relates to the field of air carbon capture technology, and more particularly to a solar photovoltaic-driven temperature-dependent adsorption air carbon capture device; it includes a gas channel, a carbon dioxide absorbent carrier, an air supply unit, a waste heat recovery unit connected to the outlet of the gas channel, and a storage device connected to the outlet of the waste heat recovery unit. This application uses a conductive porous material (such as nickel foam) as the absorbent carrier. The carrier itself is directly heated by Joule heat generated by electricity, and almost all the heat is used for the heating and desorption of the absorbent, avoiding heat loss from indirect heating. The thermal efficiency can reach over 90%, significantly reducing energy consumption. This application includes a waste heat recovery unit that uses the high-temperature exhaust gas after desorption to heat the heat-conducting medium in the heat storage working fluid chamber. The heat medium is then circulated to the heating jacket around the gas channel by a pump, preheating or insulating the channel before the next adsorption cycle, further reducing heating power and achieving cascaded energy utilization.

This invention relates to the field of carbon dioxide capture technology, and discloses a method and system for regenerating carbon dioxide absorbent and capturing carbon, as well as their applications. The method includes: regenerating the carbon dioxide absorbent in a regeneration device; returning a portion of the regenerated gas to the regeneration device; and purifying the remaining portion. Specifically, based on the total weight of the regenerated gas, the content of the portion of regenerated gas is 20-90 wt%, and the content of the remaining portion is 10-80 wt%. This method significantly reduces the energy consumption for regenerating the carbon dioxide absorbent and significantly improves the regeneration efficiency. Furthermore, the system uses a heat exchanger instead of a traditional regeneration tower and reboiler, saving equipment space.

The utility model discloses an application system of a carbon dioxide absorbent, relates to the technical field of absorbents, and discloses a novel phase change type CO2 absorbent prepared by mixing ionic liquid hydroxyethyl ethylenediamine imidazole-amino acid serving as a main absorbent, ethanolamine / piperazine serving as an accelerant, n-butyl alcohol serving as a phase splitting agent and a certain amount of water. The absorption capacity is high, the regeneration energy consumption can be greatly reduced while the absorption efficiency is ensured, and the stability is good; meanwhile, the carbon capture performance testing device is designed into a movable skid-mounted type, and the two-phase separator which is wide at the upper part and narrow at the lower part is utilized, so that phase splitting can be quickly realized, the device can be easily connected with an industrial production side line, and the industrial performance of the absorbent can be quickly verified.

The ammonia production system comprises a syngas compressor upstream from the ammonia synthesis module includes an ammonia reactor. The ammonia reactor is fluidly coupled to the chiller which is in fluid communication with a carbon dioxide scrubber. The scrubber removes unreacted syngas. The unreacted syngas is recycled through a IGV controlled recycle compressor using a fixed speed driver. The delivery side of the recycle compressor is in fluid communication with the ammonia reactor. A portion of the recycle stream is delivery through an expander to the syngas make up compressor.