Hydrocarbon gas processing

Details Hydrocarbon gas processing Hydrocarbon gas processing

1988-11-21

1989-12-26

Capossela, Ronald C.

Refrigeration

Processes

Circulating external gas

62 39, 62 43, F25J 302

Patent

active

048895458

ABSTRACT:
A process for the recovery of ethane, ethylene, propane, propylene and heavier hydrocarbon components from a hydrocarbon gas stream is disclosed. The stream is divided into first and second streams. The first stream is cooled to condense substantially all of it and is thereafter expanded to the fractionation tower pressure. After expansion, the cooled first stream is directed in heat exchange relation with a compressed recycle portion of the fractionation tower overhead. The warmed first stream is then supplied to the fractionation tower at a first mid-column feed position. The second stream is expanded to the tower pressure and is then supplied to the column at a second mid-column feed position. The recycle stream is cooled by the first stream sufficiently to substantially condense it. The substantially condensed recycle stream is then expanded to the pressure of the distillation column and supplied to the column at a top column feed position. The pressure of the recycle stream and the quantities and temperatures of the feeds to the column are effective to maintain the column overhead temperature at a temperature whereby the major portion of the desired components is recovered.

REFERENCES:
patent: 3516261 (1970-06-01), Hoffman
patent: 3656311 (1972-04-01), Kaiser
patent: 3902329 (1975-09-01), King, III et al.
patent: 4002042 (1977-01-01), Pryor et al.
patent: 4004430 (1977-01-01), Solomon et al.
patent: 4115086 (1978-09-01), Jordan et al.
patent: 4132604 (1979-01-01), Alexion et al.
patent: 4157904 (1979-06-01), Campbell et al.
patent: 4171964 (1979-10-01), Campbell et al.
patent: 4203741 (1980-05-01), Bellinger et al.
patent: 4251249 (1981-02-01), Gulsby
patent: 4278457 (1981-07-01), Campbell et al.
patent: 4356014 (1982-10-01), Higgins
patent: 4507133 (1985-03-01), Khan et al.
patent: 4592766 (1986-06-01), Kumman et al.
patent: 4596588 (1986-06-01), Cook
patent: 4617039 (1986-10-01), Buck
patent: 4657571 (1987-04-01), Gazzi
patent: 4687499 (1987-08-01), Aghili
patent: 4711651 (1987-12-01), Sharma et al.
patent: 4738699 (1988-04-01), Apffel et al.
patent: 4746342 (1988-05-01), DeLong et al.

Affiliated with

Also associated with

Rating

Hydrocarbon gas processing does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Hydrocarbon gas processing, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Hydrocarbon gas processing will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1575431