发明名称 |
OLEFIN POLYMERIZATION REACTION UNIT AND POLYOLEFIN PRODUCTION PROCESS |
摘要 |
<p>An olefin polymerization reaction unit includes a multistage gas phase polymerization reactor which is divided into two or more polymerization stages, in which polyolefin particles move from an initial stage to a final stage, and in which an olefin monomer- containing gas is fed from the final stage toward the initial stage. The reaction unit also includes first circulating means for feeding to the final stage a gas that is discharged from the initial stage and then cooled with a first heat exchanger, and second circulating means for feeding to one of the polymerization stages a condensate formed by condensing, with a second heat exchanger different from the first heat exchanger, a gas removed from one of the polymerization stages.</p> |
申请公布号 |
SG153758(A1) |
申请公布日期 |
2009.07.29 |
申请号 |
SG20080091589 |
申请日期 |
2008.12.11 |
申请人 |
SUMITOMO CHEMICAL COMPANY, LIMITED |
发明人 |
OGAWA HIROYUKI;SATO HIDEKI |
分类号 |
(IPC1-7):C08F10/00;C08F2/34;C08F2/01 |
主分类号 |
(IPC1-7):C08F10/00 |
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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