The present disclosure relates to a process and apparatus for capturing carbon dioxide in flue gas, and the present disclosure performs a carbon dioxide recovery separation membrane process using cold heat in a carbon dioxide liquefaction process through a separation tower, thereby reducing energy consumption and remarkably improving separation efficiency.

A method/system for sequestering carbon dioxide from cement and lime production facilities wherein carbon dioxide from flue gases originating from cement or lime production facilities is recovered and transported to a building materials production facility where it is sequestered.

A method/system for sequestering carbon dioxide from cement and lime production facilities wherein carbon dioxide from flue gases originating from cement or lime production facilities is recovered and transported to a building materials production facility where it is sequestered.

The present invention relates to an apparatus and method for manufacturing a dry ice nugget using liquid carbon dioxide and a dry ice nugget manufactured by the method, wherein the method includes injecting liquid carbon dioxide into a cylinder having a predetermined internal space formed therein, accumulating the liquid carbon dioxide, which is solidified in the internal space, at a lower end of the cylinder, pressurizing the predetermined internal space by lowering a piston located above the cylinder, and compression-molding the liquid carbon dioxide in a solid state pressurized by the piston.

The present invention relates to an apparatus and method for manufacturing a dry ice nugget using liquid carbon dioxide and a dry ice nugget manufactured by the method, wherein the method includes injecting liquid carbon dioxide into a cylinder having a predetermined internal space formed therein, accumulating the liquid carbon dioxide, which is solidified in the internal space, at a lower end of the cylinder, pressurizing the predetermined internal space by lowering a piston located above the cylinder, and compression-molding the liquid carbon dioxide in a solid state pressurized by the piston.

A system for capturing carbon dioxide from an industrial gas as a solidified carbon dioxide. The system is facilitated by a heated work-extraction mechanism which is employed to maintain surfaces of a work extraction mechanism at a temperature sufficient to avoid surface accretion of solidified carbon dioxide thereat. Heat for the work-extraction mechanism may be drawn from circulation of the industrial gas to the work-extraction mechanism through a separate hydraulic network in advance of processing through the work extraction mechanism. Alternatively, a dedicated circulation of a warming fluid may be employed.

A system for capturing carbon dioxide from an industrial gas as a solidified carbon dioxide. The system is facilitated by a heated work-extraction mechanism which is employed to maintain surfaces of a work extraction mechanism at a temperature sufficient to avoid surface accretion of solidified carbon dioxide thereat. Heat for the work-extraction mechanism may be drawn from circulation of the industrial gas to the work-extraction mechanism through a separate hydraulic network in advance of processing through the work extraction mechanism. Alternatively, a dedicated circulation of a warming fluid may be employed.

The invention relates to a method for capturing carbon dioxide in whichat least one jet (2) of cooling fluid having a temperature below or equal to 78.5 C. is formed, said cooling fluid being chosen from the group formed of nitrogen, oxygen, air and mixtures thereof, at least one jet (1a, 1b) of gas, referred to as gas to be treated, containing at least in part carbon dioxide, is formeda step of solidifying the carbon dioxide is carried out in which said jet of cooling fluid and said jet of gas to be treated are sprayed in contact with one another, inside a chamber, said gas to be treated having a pressure greater than the pressure of said cooling fluid, after said step of solidifying the carbon dioxide, carbon dioxide is recovered in the solid state. The invention also relates to a carbon dioxide capturing system suitable for implementing such a method.

The invention relates to a method for capturing carbon dioxide in whichat least one jet (2) of cooling fluid having a temperature below or equal to 78.5 C. is formed, said cooling fluid being chosen from the group formed of nitrogen, oxygen, air and mixtures thereof, at least one jet (1a, 1b) of gas, referred to as gas to be treated, containing at least in part carbon dioxide, is formeda step of solidifying the carbon dioxide is carried out in which said jet of cooling fluid and said jet of gas to be treated are sprayed in contact with one another, inside a chamber, said gas to be treated having a pressure greater than the pressure of said cooling fluid, after said step of solidifying the carbon dioxide, carbon dioxide is recovered in the solid state. The invention also relates to a carbon dioxide capturing system suitable for implementing such a method.

A system can be used to capture carbon dioxide using cryogenic techniques. The system can include a compression subsystem, a dehydration subsystem, a desublimation subsystem, and a refrigeration subsystem. The compression subsystem can be positioned to receive a gaseous mixture, which can include carbon dioxide, and to compress the gaseous mixture. The dehydration subsystem can be coupled with the compression subsystem to remove water from the received gaseous mixture to generate a compressed dry gaseous mixture. The desublimation subsystem can be coupled with the compression subsystem and the dehydration subsystem to receive the compressed dry gaseous mixture and to cause the carbon dioxide to desublimate from the compressed gaseous mixture. The refrigeration subsystem can be coupled with the desublimation subsystem to provide cooling to the desublimation subsystem using dry air as a refrigerant.