Title:
A SEPARATING METHOD OF CRACKED METHANOL GAS TO PREPARE POLYMER GRADE LOW CARBON OLEFIN
Document Type and Number:
WIPO Patent Application WO/2009/015507
Kind Code:
A1
Abstract:
Disclosed is a separating method of cracked methanol gas to prepare polymer grade
low carbon olefin, which comprises compression step, edulcoration step and
absorptive separation step, wherein in the absorptive separation step first
feeding the cracked methanol gas into pre-deethylenizing tower, then passing
through absorptive separation by C4 absorbent agent to obtain polymer grade
ethylene product, polymer grade propylene product and C4 and C5 product.
Inventors:
ZHANG HUILING (CN)
CHENG LONGWU (CN)
SONG ZHIYUAN (CN)
MIN XIAOJIAN (CN)
CHENG LONGWU (CN)
SONG ZHIYUAN (CN)
MIN XIAOJIAN (CN)
Application Number:
PCT/CN2007/002279
Publication Date:
February 05, 2009
Filing Date:
July 27, 2007
Export Citation:
Assignee:
CHINA MTO LTD (CN)
DAQING PETROCHEMICAL ENGINEERI (CN)
ZHANG HUILING (CN)
CHENG LONGWU (CN)
SONG ZHIYUAN (CN)
MIN XIAOJIAN (CN)
DAQING PETROCHEMICAL ENGINEERI (CN)
ZHANG HUILING (CN)
CHENG LONGWU (CN)
SONG ZHIYUAN (CN)
MIN XIAOJIAN (CN)
International Classes:
C07C7/00; C07C7/04; C07C7/11; C07C1/20; C07C11/04; C07C11/06; C07C31/04
Domestic Patent References:
| WO2001025174A1 | 2001-04-12 |
Foreign References:
| CN1847203A | 2006-10-18 | |||
| CN1176244A | 1998-03-18 | |||
| CN1157280A | 1997-08-20 | |||
| EP1637577A2 | 2006-03-22 |
Other References:
See also references of EP 2174924A4
Attorney, Agent or Firm:
LIAN & LIEN IP ATTORNEYS (Tower A Huaxin Building,No.33 Anding Road, Chaoyang District, Beijing 9, CN)
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