Abstract: LPG and gasoline are recovered from catalytic reformer plant treat gas and net gas by refrigeration-induced condensation and separation, using reformer plant waste heat to produce the refrigeration in an ammonia absorption refrigeration unit. Referring to FIG. 2, reformer waste heat from exchanger 21 powers absorption refrigeration unit 22, which supplies refrigeration to chiller 25. Net gas and treat gas is recuperatively cooled in recuperator 24, chilled in chiller 25, and separated in separator 26. Absorption refrigeration may also be supplied to cool FCC compressor inlet vapor to below ambient, either in conjunction with treat gas chilling or independently. Other waste heat streams may also be used.