Title:
SEPARATION OF HYDROGEN AND METHANE FROM GASEOUS HYDROCARBON
Document Type and Number:
Japanese Patent JP3730362
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To remarkably decrease the power of a refrigerator by dimishing the refigerant energy for separating hydrogen and methane as compared with the conventional method and to increase the output by eliminating the problem that an existing demethanton tower control the production rate.
SOLUTION: Gaseous hydrogen is recovered from a high-pressure current of gaseous hydrocarbons contg. hydrogen in a hydrogen separator S-1. The gaseous hydrocarbons are successively cooled in at least two temp. zones arranged in series and separated into into gas and liq., the condensate is supplied to a methane separation stage (predemethanation tower T-1 or demethanation tower T-2), the uncondensed gas is supplied to the succeeding temp. zone, gaseous methane is recovered in the methane separation stage, and a condensate substantially free of methane is recovered.
Inventors:
Huiyang hot
Nishiiri Takeshi
Nishiiri Takeshi
Application Number:
JP12502997A
Publication Date:
January 05, 2006
Filing Date:
April 28, 1997
Export Citation:
Assignee:
Mitsubishi Chemical Corporation
International Classes:
C01B3/50; C07C7/09; C07C9/04; C10G5/06; C10G31/06; C10G53/02; F25J3/02; (IPC1-7): C01B3/50; C07C7/09; C07C9/04; C10G5/06; C10G31/06; C10G53/02; F25J3/02; F25J3/02
Domestic Patent References:
| JP58166917A | ||||
| JP7196537A | ||||
| JP7258119A | ||||
| JP61100531A |
Attorney, Agent or Firm:
Kazuhiko Okada
Previous Patent: BLOW SPIN DIE APPARATUS, AND METHOD FOR FORMING SINGLE CURTAIN OF FIBER
Next Patent: SINGLE CYLINDER WATER-COOLED ENGINE
Next Patent: SINGLE CYLINDER WATER-COOLED ENGINE