Process and system for preparing low-carbon olefin from methanol or dimethylether
Title：
Process and system for preparing low-carbon olefin from methanol or dimethylether
Application Number：
 01144188
Application Date：
 2001/12/14
Announcement Date：
 2002/07/03
Pub. Date：
Publication Number：
 1356299
Announcement Number：
 1156416
Grant Date：
 2004-7-7
Granted Pub. Date：
 2004-7-7
ApplicationType：
 Invention
State/Country：
 11[China|beijing]
IPC：
 C07C 1/20, C07C 11/02
Applicant(s)：
 Qinghua Univ
Inventor(s)：
 Wei Fei, Gao Lei, Luo Guohua
Key Words：
 prepare, low-carbon olefin, methanol, dimethylether
Abstract：
 A process for preparing low-carbon olefin from methanol or dimethyl ether includes loading its raw material and silicon aluminium phosphate (SAPO34) molecular sieve as catalyst into gas-solid parallel down-flowing fluidized bed reactor, super-short contact, reaction, fast gas-solid separation to separating resultant from catalyst to prevent secondary reaction, and regerating catalyst for cyclic use. Its advantages include high output rate (93%), high conversion rate of raw material, and less by-product.
Claim：
Priority：
PCT：
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