Process for recovering c.sub.4 hydrocarbons using a...

Details Process for recovering c.sub.4 hydrocarbons using a... Process for recovering c.sub.4 hydrocarbons using a...

C - Chemistry, Metallurgy

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C

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C07C 7/09 (2006.01) C07C 7/04 (2006.01) C07C 9/12 (2006.01) C07C 9/14 (2006.01) F25J 3/02 (2006.01) F25J 3/08 (2006.01)

Patent

CA 1248007

ABSTRACT A process is described for separating C4+ hydro- carbons in high recovery and high purity from a feed gas comprising about 0-5% C5 and heavier hydrocarbons, 1-10% C4 hydrocarbons, 0-10% C3 hydrocarbons, 0-10% C2 hydrocarbons and the balance CH4 and light inerts. Efficient separation is effected by using a dephlegmator cycle employing only internal refrigeration.

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