发明名称 |
Process for the selective preparation of dib from an I-butene-containing C4 stream |
摘要 |
The invention relates to a process for preparing diisobutylene (DIB) from an i-butene-containing C4 raffinate I, in which the C4 stream is passed through a first hydroisomerization reactor (A) and a fractionation column (B) and is thus largely freed of 1-butene and 2-butene. It is subsequently dimerized over an acidic catalyst installed in a reactive column (E). The feed stream to this reactive column contains not only i-butene but also butanes which make the reaction temperature in the fixed bed controllable by removal of the heat of reaction. In the fractionation column (B), a side stream can be subjected to a further hydroisomerization in a reactor (C). <IMAGE> |
申请公布号 |
AU6547301(A) |
申请公布日期 |
2002.03.07 |
申请号 |
AU20010065473 |
申请日期 |
2001.08.27 |
申请人 |
EC ERDOLCHEMIE GMBH |
发明人 |
ALEXANDER GAMMERSBACH;HANS-JOACHIM KRAMER;STEFAN KAMINSKY;JOACHIM GRUB;AXEL GOHRT |
分类号 |
C07C2/28;C07B61/00;C07C2/10;C07C2/12;C07C5/22;C07C7/04;C07C7/163;C07C11/02 |
主分类号 |
C07C2/28 |
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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