发明名称 |
Process for producing (meth)acrolein or (meth)acrylic acid |
摘要 |
In the process for producing (meth)acrolein or (meth)acrylic acid, which comprises feeding a raw material of the (meth)acrolein or (meth)acrylic acid, and a molecular oxygen-containing gas mixed with a diluting gas and compressed by a compressor, to an oxidation reactor to conduct a catalytic gas-phase oxidation reaction therebetween; feeding the obtained reaction gas to an absorption column to contact with water; recovering an aqueous solution of the (meth)acrolein or (meth)acrylic acid from a bottom of the absorption column and an exhaust gas from a top of the absorption column; and recycling a part or whole of the thus recovered exhaust gas to use as the diluting gas, the temperature of the mixed gas at a suction inlet of the compressor is controlled to a temperature higher than a dew point thereof. According to the process of the present invention, the compressor is prevented from suffering from clogging or damage thereto.
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申请公布号 |
US7067696(B2) |
申请公布日期 |
2006.06.27 |
申请号 |
US20040863511 |
申请日期 |
2004.06.09 |
申请人 |
MITSUBISHI CHEMICAL CORPORATION |
发明人 |
SAKAKURA YASUYUKI;YADA SHUHEI;HOSAKA HIROCHIKA;OGAWA YASUSHI;SUZUKI YOSHIRO |
分类号 |
C07C51/16;C07B61/00;C07C45/35;C07C51/235;C07C51/25;C07C57/05 |
主分类号 |
C07C51/16 |
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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