Separation of ethane and higher hydrocarbons from natural gas

Details Separation of ethane and higher hydrocarbons from natural gas Separation of ethane and higher hydrocarbons from natural gas

1984-05-23

1986-04-15

Bashore, S. Leon

Refrigeration

Processes

Circulating external gas

62 26, 62 28, 62 30, 62 31, F25J 302

Patent

active

045825173

ABSTRACT:
Ethane and higher hydrocarbons are separated by rectification from natural gas under elevated pressure. To obtain higher ethane yields, even for gases poor in ethane, an open mixture cycle with multistage fractional condensation is employed for the production of cold. One part of the thus-obtained condensates are introduced into the rectifying column to obtain the C.sub.2+ hydrocarbons and the other part is recirculated to provide the required cold.

REFERENCES:
patent: 3292380 (1966-12-01), Bucklin
patent: 3407613 (1968-10-01), Muller et al.
patent: 3596473 (1971-08-01), Streich
patent: 4128410 (1978-12-01), Bacon
patent: 4257794 (1981-03-01), Shirokov et al.
patent: 4312652 (1982-01-01), Mikulla

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