liquéfaction

CONT: ... liquefaction, was historically linked to hydrogenation and other high-pressure (10-30 MPa) thermal decomposition processes which employed reactive hydrogen or carbon monoxide carrier gases to produce a liquid fuel from organics at moderate temperatures (300-400°C). However, over the past decade, liquefaction has often been used in the literature to encompass any thermochemical conversion process which primarily yields a liquid tar/oil product (pyrolysis is therefore included with hydrogenation as being ""liquefaction"").

CONT: Para licuar el aire, primero hay que comprimirlo con una bomba y hacerlo pasar por un tanque de enfriamiento. [...] el aire se enfría a -194°C, en que se licúa, y puede guardarse. [...] El mejor método de separar los gases del aire es la licuación del mismo.