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公开(公告)号:US4519825A
公开(公告)日:1985-05-28
申请号:US488328
申请日:1983-04-25
CPC分类号: C07C7/09 , F25J3/0219 , F25J3/0247 , F25J2200/80 , F25J2270/04
摘要: A process is described for separating C.sub.4 + hydrocarbons in high recovery and high purity from a feed gas comprising about 0-5% C.sub.5 and heavier hydrocarbons, 1-10% C.sub.4 hydrocarbons, 0-10% C.sub.3 hydrocarbons, 0-10% C.sub.2 hydrocarbons and the balance CH.sub.4 and light inerts. Efficient separation is effected by using a dephlegmator cycle employing only internal refrigeration.
摘要翻译: 描述了一种从高回收率和高纯度分离含有约0-5%C5和较重烃,1-10%C 4烃,0-10%C 3烃,0-10%C 2烃的进料气体的C4 +烃的方法, 平衡CH4和光惰性物质。 通过使用仅使用内部制冷的分凝器循环来实现有效的分离。