Title:
A METHOD FOR INCREASING YIELDS OF ETHYLENE AND PROPENE IN MTO PROCESS
Document Type and Number:
WIPO Patent Application WO/2008/101403
Kind Code:
A1
Abstract:
The present invention discloses a method for increasing yields of ethylene and
propene in MTO process, which comprises: i) feeding a raw material containing
at least one of methanol and dimethylether, and C4 hydrocarbon, from
a bottom distributor of the reactor and optionally from at least one position
upper the distributor into a reaction region comprising molecular sieve catalysts;
ii) reacting the raw material in the presence of the molecular sieve catalysts
to produce a product flow containing ethylene, propene and C4 hydrocarbon;
iii) taking out the product flow from the top of the reactor and feeding them into
a separate system to separate ethylene, propene and C4 hydrocarbon;
and iv) recycling the C4 hydrocarbon separated in the step iii) back
into the step i).
Inventors:
QI GUOZHEN (CN)
ZHONG SIQING (CN)
YANG YUANFEI (CN)
WANG HUAWEN (CN)
ZHONG SIQING (CN)
YANG YUANFEI (CN)
WANG HUAWEN (CN)
Application Number:
PCT/CN2008/000328
Publication Date:
August 28, 2008
Filing Date:
February 05, 2008
Export Citation:
Assignee:
CHINA PETROLEUM & CHEMICAL (CN)
SHANGAI RES INST OF PETROCHEMI (CN)
QI GUOZHEN (CN)
ZHONG SIQING (CN)
YANG YUANFEI (CN)
WANG HUAWEN (CN)
SHANGAI RES INST OF PETROCHEMI (CN)
QI GUOZHEN (CN)
ZHONG SIQING (CN)
YANG YUANFEI (CN)
WANG HUAWEN (CN)
International Classes:
C07C1/20; C07C4/06; C07C11/04; C07C11/06
Domestic Patent References:
| WO2004037950A1 | 2004-05-06 |
Foreign References:
| US6166282A | 2000-12-26 | |||
| EP1508555A1 | 2005-02-23 |
Attorney, Agent or Firm:
CCPIT PATENT AND TRADEMARK LAW OFFICE (Vantone New World Plaza2 Fuchengmenwai Street, Beijing 7, CN)
Download PDF:
Previous Patent: METHOD, SYSTEM AND DEVICE FOR DOMAIN SWITCHING
Next Patent: TEA, FOOD ADDITIVE AND HEALTHY FOOD MADE FROM MYRICA RUBRA
Next Patent: TEA, FOOD ADDITIVE AND HEALTHY FOOD MADE FROM MYRICA RUBRA