发明名称 |
Treatment of adsorbent to enhance adsorbent capacity for acetylenic compounds |
摘要 |
Processes using heterogeneous adsorbents are disclosed for purification of olefin streams, such as are produced by thermal cracking of hydrocarbons, to obtain a feedstock suitable for formation of olefin polymers. These purification processes comprises: providing an impure gaseous mixture; passing the impure mixture through a bed of regenerated adsorbent which is free of a substantial amount of carbon monoxide; effecting, in the presence of an essentially dihydrogen-free atmosphere within the bed, selective adsorption of the contained acetylenic impurities with the adsorbent until levels of the acetylenic impurities in the effluent mixture increase to a limiting level in a range downward from about 1 parts per million by volume; and thereafter regenerating the resulting bed of adsorbent in the presence of a reducing gas comprising dihydrogen which reducing gas is free of a substantial amount of carbon monoxide.
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申请公布号 |
US2003105379(A1) |
申请公布日期 |
2003.06.05 |
申请号 |
US20010997903 |
申请日期 |
2001.11.30 |
申请人 |
BAHR BRIAN C.;FORAL MICHAEL J.;KAMINSKY MARK P.;VENTURA DIADEMA N.;WAIREGI TOM |
发明人 |
BAHR BRIAN C.;FORAL MICHAEL J.;KAMINSKY MARK P.;VENTURA DIADEMA N.;WAIREGI TOM |
分类号 |
C07C7/12;(IPC1-7):C07C7/12;C07C7/00 |
主分类号 |
C07C7/12 |
代理机构 |
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