Liquefying gaseous carbon dioxide, useful for treating combustion gases for carbon dioxide disposal, uses an intermediate liquid for heat exchange and liquefied natural gas for reliquefaction of the intermediate

摘要

Process for liquefying gaseous carbon dioxide by (i) liquefying CO2 by indirect heat exchange with an intermediate liquid (IL), which is vaporized during heat exchange and (ii) liquefying the vaporized IL by indirect heat exchange with liquid natural gas (LNG), which is vaporized during heat exchange, and liquid IL is recycled to step (i).