发明名称 |
Process for producing propylene and hexene from C4 olefin streams |
摘要 |
<p>A C3 to C6 hydrogen cut from a cracking unit is processed for the conversion of olefins to propylene and hexene via autometathesis. The autometathesis (16) of a mixed normal butenes feed (10) in the presence of a metathesis catalyst operates without any ethylene in the feed mix to the metathesis reactor. Some fraction of the 2-butene feed may be isomerized to 1-butene and the 1-butene formed plus the 1-butene in the feed react rapidly with the 2-butene to form propylene and 2-pentene. The feed to the reactor also includes the recycle of the 2-pentene (14) formed in the reactor with unreacted butenes to simultaneously form additional propylene and hexene. Some or all (34) of the 3-hexene (26) formed in the reaction is isomerized to 1-hexene (46). In one embodiment, some portion (72) of the 3-hexene (26) produced in the main metathesis reaction is reacted with ethylene to produce 1-butene (96) without the need for superfractionation.
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申请公布号 |
EP2157071(A3) |
申请公布日期 |
2010.03.31 |
申请号 |
EP20090014595 |
申请日期 |
2003.03.07 |
申请人 |
LUMMUS TECHNOLOGY INC. |
发明人 |
GARTSIDE, ROBERT, J.;GREENE, MARVIN, I.;JONES, QUINCY, J. |
分类号 |
C07C4/06;C07C6/04;C07B61/00;C07C4/04;C07C5/25;C07C11/06;C07C11/08;C07C11/107 |
主分类号 |
C07C4/06 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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