Brazed aluminum heat exchanger & cold box
Plate fin heat exchangers are essential part of cryogenic gas processing including air separation, LNG liquefaction, nitrogen rejection, natural gas liquids (NGL) recovery, propane dehydrogenation, hydrogen liquefaction and recovery and other low temperature natural gas and petrochemical processes, as a multi exchange place of heat transfer.
Cold box is a complete package of brazed aluminum heat exchanger contained in carbon steel casing with structural support, insulation containment, and protection for the internal equipment. Insulation work of heat exchanger and piping assembly can be easily done by perlite insulation and inside of cold box will be pressurized and purged by dry nitrogen gas.