A method and apparatus for purifying gas where gas is treated in a multistage treatment having at least two ejector stages, a motive medium including liquid, steam or gaseous agent at high pressure injected by an ejector of the ejector stage, and the gas is sucked into the same ejector and mixed with the motive medium for forming a mixture, at least a part of gas and/or liquid phase of the mixture is supplied to a second ejector stage having so that a second motive medium which includes liquid, steam or gaseous agent is injected to the ejector and the gas and/or the liquid phase is sucked into the same ejector in which the gas and/or liquid phase is mixed with the second motive medium for forming a second mixture, at least one of the mixtures includes an additive for removing impurities of the gas, and a purified gas is formed.

The embodiments of the present disclosure provide a method and an Internet of Things (IoT) system for gas purification management in a storage and distribution station for smart gas. The method is implemented based on the IoT system for gas purification management in the storage and distribution station for smart gas. The IoT system includes a smart gas user platform, a smart gas service platform, a smart gas device management platform, a smart gas sensor network platform, and a smart gas object platform. The method is executed by the smart gas device management platform. The method includes: obtaining a gas quality condition parameter of a raw gas, and the gas quality condition parameter being obtained based on the storage and distribution station; determining, based on the gas quality condition parameter, an operation parameter in a purification process, the operation parameter being used for a purification operation of the raw gas.

An article of manufacture for providing an O.sub.2 Tree for removing CO.sub.2 gas from the atmosphere according to the present invention is disclosed.

A process for producing a deacidified fluid stream from a fluid stream comprising methanol and at least one acid gas and an apparatus for carrying out the process. The process comprising a) an absorption step in which the fluid stream is contacted with an absorbent in an absorber to obtain an absorbent laden with methanol and acid gases and an least partly deacidified fluid stream; b) a regeneration step in which at least a portion of the laden absorbent obtained from step a) is regenerated in a regenerator to obtain an at least partly regenerated absorbent and a gaseous stream comprising methanol, water and at least one acid gas; c) a recycling step in which at least a substream of the regenerated absorbent from step b) is recycled into the absorption step a); d) a condensation step in which a condensate comprising methanol and water is condensed out of the gaseous stream from step b); e) a distillation step in which at least a portion of the condensate from step d) is guided into a distillation column to obtain a top stream comprising methanol and a bottom stream comprising water; which comprises recycling at least a portion of the bottom stream from step e) into the regenerator.

The present disclosure relates to a porous liquid or a porous liquid enzyme system that includes a high surface area solid and a liquid film substantially covering the high surface area solid. The porous liquid or porous liquid enzyme may be contacted with a fluid that is immiscible with the liquid film such that a liquid-fluid interface is formed. The liquid film may facilitate mass transfer of a substance or substrate across the liquid-fluid interface. The present disclosure also provides methods of performing liquid-based extractions and enzymatic reactions utilizing the porous liquid or porous liquid enzyme of the present disclosure. The present disclosure also provides methods for selecting the components of the porous liquid or a porous liquid enzyme system and methods of self-replenishing the used liquid coating.

Provided herein are amine-functionalized cellulose polymers useful for carbon dioxide capture and methods of preparation and use thereof.

A method for separating carbon dioxide from a flue gas stream wherein the flue gas stream is fed to an absorber column thereby producing a carbon dioxide depleted flue gas stream and wherein carbon dioxide absorbed from the carbon dioxide rich flue gas stream in the solvent is fed from the absorber column to a stripper column as a carbon dioxide rich solvent blend. The method is an improvement over prior carbon dioxide separation process by feeding the flue gas stream to a gas pre-treatment device prior to feeding into the absorber column preferably for decreasing the oxygen content in the flue gas and recycling a carbon dioxide product from the stripper column to the absorber column to increase the carbon dioxide content in the flue gas.

Disclosed are processes, apparatuses, and systems for Direct Air Carbon Capture (DACC). An example process involves using a stream of exhaust air flowing from an air cooled heat exchanger to drive a DACC unit. Another example process involves conveying waste heat recovered from an industrial source to the DACC unit. The waste heat may be used to remove captured CO2 from a capture device of the DACC unit and/or for regeneration of the capture device.

Devices, systems, and methods for carbon capture optimization in industrial facilities are disclosed herein. An example carbon capture process involves cooling a flue gas stream using at least one gas-to-air heat exchanger disposed upstream of a carbon dioxide (CO2) absorber. Another example carbon capture process involves heating a heat medium for solvent regeneration and CO2 stripping using a fired heater and/or using at least one waste heat recovery unit.

A method of treating a switchable polarity material comprises introducing a first feed stream comprising a solvent and a non-polar form of the switchable polarity material to a first side of a gas diffusion membrane. A second feed stream comprising an acid gas is introduced to a second side of the gas diffusion membrane opposing the first side of the gas diffusion membrane. Molecules of the acid gas of the second feed stream are diffused across the gas diffusion membrane and into the first feed stream to form a product stream comprising a polar form of the switchable polarity material. A treatment system for a switchable polarity material, and a method of liquid treatment are also described.