Patent ID: 6105391
Filing Date: 2000-08-22
Classification: F25J,Y10S

Abstract:
A process for liquefying a compound A from a mixture comprising at least compound A and at least one compound B, each one of the at least one compound B having a lower boiling point than the compound A and the mixture being at a pressure P1, the liquefaction process comprising:producing by expansion a gaseous effluent at a pressure P2 lower than P1 of a majority of the at least one compound B and a liquefied effluent at a pressure P3 lower than P2 of a majority of the compound A and substantially depleted of the at least one compound B; andseparating by distillation at least one of the at least one compound B and compound A at a pressure close to pressure P2 which produces at least a stream substantially comprising the compound A and a stream comprising a majority of the at least one compound B.