Title:
A NON-CRYOGENIC SEPARATION METHOD FOR LOWER HYDROCARBON CONTAINING LIGHT GAS
Document Type and Number:
WIPO Patent Application WO/2009/012623
Kind Code:
A1
Abstract:
Disclosed is a non-cryogenic separation method for lower hydrocarbon containing light gas, which comprises the following steps: (1)cooling the pretreated gas from outlet of reactor to 10°C~-37°C, then feeding the gas into pre-cutting column; (2) feeding the cooled overhead product of pre-cutting column into absorption column, and absorbing C2 hydrocarbons of overhead product of pre-cutting column with the absorption agent comprising of C3, C4, C5 or its mixture of hydrocarbons; and (3) feeding the bottom product of pre-cutting column into deethanizer to make clearity cutting of C2 and C3, and obtaining C2-fraction from the overhead of deethanizer and C3 and its heavier component from the bottom of deethanizer.
Inventors:
NI JINFANG (CN)
LI LIXIN (CN)
LI LIXIN (CN)
Application Number:
PCT/CN2007/002884
Publication Date:
January 29, 2009
Filing Date:
October 08, 2007
Export Citation:
Assignee:
SHANGHAI WISON CHEMICAL ENGINE (CN)
NI JINFANG (CN)
LI LIXIN (CN)
NI JINFANG (CN)
LI LIXIN (CN)
International Classes:
C07C7/00; C07C7/04; C07C7/11; C07C9/02; C07C9/04; C07C9/06; C07C9/08; C07C11/00; C07C11/02; C07C11/04; C07C11/06; C07C11/24
Foreign References:
| CN1157280A | 1997-08-20 |
Attorney, Agent or Firm:
SHANGHAI KAIJI INTELLECTUAL PROPERTY AGENT CO., LTD. (129 West Yan'an Road, Shanghai 0, CN)
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