发明名称 |
SORPTION FRACTIONATION PROCESS FOR OLEFIN SEPARATION |
摘要 |
<p>A continuous fractionation technique is provided for recovering ethylene from an olefinic feedstock comprising C3+ higher olefins. This technique provides methods and means for contacting the olefinic feedstock in a counter current sorption tower with a liquid sorbent stream comprising C6+ gasoline range hydrocarbons under process conditions to selectively sorb substantially the entire C3+ olefin components from the feedstock, withdrawing an ethylene-rich vapor stream from the sorption tower and further contacting the ethylene-rich stream with a distillate range liquid hydrocarbon stream in a sponge absorber to purify the ethylene stream. Typically, the olefinic feedstock consists essentially of volatile hydrocarbons, and preferably comprises about 10 to 50 mole % ethylene and 10 to 50 mole % propene. Purified ethylene product may be recovered having an average molecular weight not greater than 28.5 under non-cryogenic conditions.</p> |
申请公布号 |
DE3476795(D1) |
申请公布日期 |
1989.03.30 |
申请号 |
DE19843476795 |
申请日期 |
1984.05.01 |
申请人 |
MOBIL OIL CORPORATION |
发明人 |
HSIA, CHUNG HWENG;OWEN, HARTLEY;WRIGHT, BERNARD STANLEY |
分类号 |
C07C1/00;C07C7/11;C07C7/12;C07C11/04;C07C67/00;(IPC1-7):C07C11/04 |
主分类号 |
C07C1/00 |
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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