Refrigeration – Cryogenic treatment of gas or gas mixture – Separation of gas mixture
Patent
1995-03-03
1996-08-20
Kilner, Christopher B.
Refrigeration
Cryogenic treatment of gas or gas mixture
Separation of gas mixture
62938, F25J 300, C07C 700
Patent
active
055467644
ABSTRACT:
An absorption process for recovering hydrogen, ethylene, methane and heavy hydrocarbons from refinery and petrochemical off-gas streams wherein the absorption solvent is comprised of heavy hydrocarbons derived from the off-gas feed stream; no external solvent is used. The process comprises the steps of absorbing ethylene out of the feed off-gas in an absorber stripper using the absorption solvent, and fractionating the rich absorption solvent in a distillation column to produce an ethylene product stream as the overhead stream and the heavy hydrocarbon absorption solvent as the bottoms stream.
REFERENCES:
patent: 4035167 (1977-07-01), Starks
patent: 4740222 (1988-04-01), Mehra
patent: 4743282 (1988-05-01), Mehra
patent: 4832718 (1989-05-01), Mehra
patent: 5019143 (1991-05-01), Mehra
patent: 5220097 (1993-06-01), Lam et al.
patent: 5326929 (1994-07-01), Mehra et al.
patent: 5462583 (1995-10-01), Wood et al.
Bauer, "Safe Ethylene Recovery from FCC Off-Gas Streams," Prepared for Presentation at AIChE 1994 Spring National Meeting, Atlanta, Georgia (Apr. 17-21, 1994).
Mehra, "Can We Really Afford to Keep Burning Light Olefins and Hydrogen in our Refineries?," CMAI Seminar, Houston, Texas (Mar. 24-25, 1993), pp. 1-10.
Mehra, "Processing Hydrocarbon Gases with the Mehra Process.SM. Technology," Chemical Engineering (Oct. 27, 1986), Houston, Texas.
Fair et al., "Ethylene Purification--Demethanization," Chemical Eng. Progress, vol. 54, No. 12 (Dec. 1958), pp. 39-47.
Advanced Extraction Technologies, Inc.
Kilner Christopher B.
LandOfFree
Absorption process for recovering ethylene and hydrogen from ref does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Absorption process for recovering ethylene and hydrogen from ref, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Absorption process for recovering ethylene and hydrogen from ref will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2322116