USE OF CO2-CONTAINING GASEOUS EFFLUENT

    公开(公告)号:US20230077286A1

    公开(公告)日:2023-03-09

    申请号:US17799401

    申请日:2021-01-26

    发明人: Luc JARRY

    摘要: A method for the use of a gaseous effluent containing a CO2 gas fraction and a non-CO2 gas fraction, including at a first location: providing liquid nitrogen at a temperature less than −196° C., and causing the gaseous effluent to contact the liquid nitrogen to as to capture at least part of the CO2 present in the CO2 gas fraction as a mixture of CO2 particles and liquid nitrogen. Conveying at least part of the mixture to a second location, and at the second location, bringing the mixture into contact with one or more ingredients of a wet concrete before and/or during and/or after the wet concrete is prepared by blending the ingredients of the wet concrete in a blender, so that the mixture extracts heat from said one or more ingredients of the wet concrete, and CO2 from the mixture partially carbonates Ca-compounds present in the wet concrete.

    FLEXIBLE PROCESS AND APPARATUS FOR THE LIQUEFACTION OF OXYGEN

    公开(公告)号:US20230068126A1

    公开(公告)日:2023-03-02

    申请号:US17713710

    申请日:2022-04-05

    IPC分类号: F25J1/00 F28D7/00 F01D15/00

    摘要: A system and method for cooling an oxygen stream by heat exchange with a warming supply nitrogen stream having of a heat exchanger having at least a Zone A and a Zone B, the system having indirect heat exchange between a gaseous oxygen stream, and a high-pressure liquid nitrogen stream split into at least a first portion which passes through a Zone A, and a second portion which passes through a Zone B during a first phase of operation. And a high-pressure liquid nitrogen stream passing through Zone A, thereby producing a high-pressure nitrogen vapor stream, which passes through an expansion turbine, thereby producing an expansion turbine outlet stream which then passes through Zone B, during a second phase of operation, thereby producing a liquid oxygen stream.