发明名称 |
Catalytic gas-phase oxidation of acrolein to acrylic acid |
摘要 |
A process for the catalytic gas-phase oxidation of acrolein to acrylic acid in a multiple contact tube fixed-bed reactor through whose space surrounding the contact tubes only one heat-exchange medium circuit is passed, at elevated temperature on catalytically active multimetal oxides with an acrolein conversion for a single pass of >/=95 mol % and an acrylic acid formation selectivity of >/=90 mol %, which comprises firstly passing the heat-exchange medium through the multiple contact tube fixed-bed reactor longitudinally, considered over the reaction container as a whole, to the contact tubes in cocurrent to the reaction-gas mixture and secondly superposing a transverse flow within the reaction container by means of an arrangement of successive baffles along the contact tubes which leaves passage cross sections free, so as to give a meandrous flow of the heat-exchange medium, seen in longitudinal section through the contact tube bundle, and setting the flow rate of the circulated heat-exchange medium so that its temperature rises by from 2 DEG to 10 DEG C. between the point of entry into the reactor and the point of exit out of the reactor.
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申请公布号 |
US5739391(A) |
申请公布日期 |
1998.04.14 |
申请号 |
US19950525118 |
申请日期 |
1995.09.08 |
申请人 |
BASF AKTIENGESELLSCHAFT |
发明人 |
RUPPEL, WILHELM;WEGERLE, ULRIKE;TENTEN, ANDREAS;HAMMON, ULRICH |
分类号 |
B01J23/28;B01J8/06;B01J21/02;B01J23/16;C07B61/00;C07C51/25;C07C57/055;(IPC1-7):C07C51/16 |
主分类号 |
B01J23/28 |
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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