7 results about "Carbon dioxide absorbent" patented technology

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 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.

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 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.