Open loop mixed refrigerant cycle for ethylene recovery

Details Open loop mixed refrigerant cycle for ethylene recovery Open loop mixed refrigerant cycle for ethylene recovery

1994-08-12

1996-03-12

Capossela, Ronald C.

Refrigeration

Processes

Circulating external gas

62 40, F25J 306

Patent

active

054976260

ABSTRACT:
Refrigeration is provided in an ethylene recovery plant by an open-loop mixed refrigeration cycle which utilizes components present in the ethylene-containing feed gas as the mixed refrigerant. Refrigeration is provided by subcooled mixed refrigerant at -175.degree. to -225.degree. F. for the demethanizer overhead condenser and for initial cooling and condensation of the ethylene-containing feed gas. Overall ethylene recoveries of up to 99.9% can be achieved at reduced power consumption compared with conventional ethylene recovery cycles. In addition, significant capital savings can be realized due to the simplification of equipment with the open-loop mixed refrigerant cycle, which can be operated advantageously at pressures between 150 and 400 psia.

REFERENCES:
patent: 3675435 (1972-07-01), Jackson et al.
patent: 3932156 (1976-01-01), Stern
patent: 4002042 (1977-01-01), Pryor et al.
patent: 4072485 (1978-02-01), Becdelievre et al.
patent: 4163652 (1979-08-01), Gazzi et al.
patent: 4629484 (1986-11-01), Kister
patent: 4720293 (1988-01-01), Rowles et al.
patent: 4900347 (1990-02-01), McCue, Jr. et al.
patent: 5035732 (1991-07-01), McCue, Jr.
patent: 5157925 (1992-10-01), Denton
Kaiser, V. et al. "Mixed Refrigerent for Ethylene." Hydrocarbon Processing Oct. 1976: 129-31.

Affiliated with

Also associated with

Rating

Open loop mixed refrigerant cycle for ethylene recovery does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Open loop mixed refrigerant cycle for ethylene recovery, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Open loop mixed refrigerant cycle for ethylene recovery will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2093471