发明名称 |
Method for vapor phase catalytic oxidation |
摘要 |
An object of the present invention is to provide a method for vapor phase catalytic oxidation which is almost free of variations in reaction states in respective reaction tubes of the fixed bed multi-tube heat-exchanger type reactor. Provided is a method for vapor phase catalytic oxidation for obtaining a reaction product gas by using a fixed bed multi-tube heat-exchanger type reactor provided with a plurality of reaction tubes and by feeding a raw material gas inside the reaction tubes packed with a catalyst, wherein the method comprises: adjusting pressure losses of the respective reaction tubes so that the pressure losses of the respective reaction tubes after catalyst packing is within ±20% of an average pressure loss of the reaction tubes by: packing an inert substance at a raw material gas inlet portion of the reaction tubes or removing and re-packing the catalyst packed, for a reaction tube having a pressure loss lower than the average pressure loss of the reaction tubes; and removing and re-packing the catalyst packed, for a reaction tube having a pressure loss higher than the average pressure loss of the reaction tubes.
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申请公布号 |
US7667072(B2) |
申请公布日期 |
2010.02.23 |
申请号 |
US20080081916 |
申请日期 |
2008.04.23 |
申请人 |
MITSUBISHI CHEMICAL CORPORATION |
发明人 |
YADA SHUHEI;HOSAKA HIROCHIKA;SAITO TERUO;SUZUKI YOSHIRO |
分类号 |
C07C27/14;C07C51/16;B01J8/00;B01J8/06;B01J23/28;B01J23/31;B01J23/887;B01J35/02;C07C45/33;C07C45/35;C07C51/25 |
主分类号 |
C07C27/14 |
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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