发明名称 |
Purification of styrene monomer by multi-point injection of hydrogen over reduction catalyst. |
摘要 |
<p>Processes and apparatus are disclosed for the catalytic purification of styrene monomer by hydrogenating the phenylacetylene contaminant therein to styrene in a catalytic bed using multiple hydrogen injection; dilution of the hydrogen by a diluent such as nitrogen; mixing the hydrogen with a catalyst-selectivity improver such as carbon monoxide; using ethylbenzene dehydrogenation ventgas to supply hydrogen; and, using a multiple-catalyst-bed-reactor, or multiple reactors, each with a single catalyst bed. One preferred phenylacetylene reduction catalyst used is palladium on an alumina carrier. <IMAGE></p> |
申请公布号 |
EP0479753(A1) |
申请公布日期 |
1992.04.08 |
申请号 |
EP19910870151 |
申请日期 |
1991.10.03 |
申请人 |
FINA TECHNOLOGY, INC. |
发明人 |
BUTLER, JAMES R.;KELLY, KEVIN P. |
分类号 |
B01J23/44;C07B61/00;C07C5/09;C07C7/167;C07C15/46 |
主分类号 |
B01J23/44 |
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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