Pretreatment of raw natural gas prior to liquefaction

Details Pretreatment of raw natural gas prior to liquefaction Pretreatment of raw natural gas prior to liquefaction

1975-12-15

1978-01-24

Bernstein, Hiram H.

Gas separation

Means within gas stream for conducting concentrate to collector

55 74, 55 89, 62 17, 62 18, 62 23, B01D 5314, F25J 308

Patent

active

040701654

ABSTRACT:
High pressure raw natural gas is prepared for liquefaction by first removing water and acid gases and then expanding the gas from the wellhead pressure to remove shaft horsepower. The expanded gas is scrubbed with a C.sub.4 rich liquid previously separated from the gas to remove heavy hydrocarbons and then further dried and passed to the liquefaction zone.

REFERENCES:
patent: 2557171 (1951-06-01), Bodle et al.
patent: 2744394 (1956-05-01), Newton
patent: 2777305 (1957-01-01), Davison
patent: 2849371 (1958-08-01), Gilmore
patent: 2973834 (1961-03-01), Cicalese
patent: 3664091 (1972-05-01), Hegwer

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