Process for separating methane and nitrogen

Details Process for separating methane and nitrogen Process for separating methane and nitrogen

1985-05-29

1986-06-03

Sever, Frank

Refrigeration

Processes

Circulating external gas

62 34, 62 40, F25J 302

Patent

active

045927677

ABSTRACT:
A process for the separation of methane and nitrogen in a cryogenic distillation column driven by a closed loop recirculating fluid heat pump wherein additional column refrigeration is generated by rejecting process heat into a product stream thereby reducing the need for expansion of process streams and enabling recovery of product at relatively high pressure.

REFERENCES:
patent: 2823523 (1958-02-01), Eakin et al.
patent: 3797261 (1974-03-01), Juncker et al.
patent: 3818714 (1974-06-01), Etzbach et al.
patent: 4352685 (1982-10-01), Swallow
patent: 4411677 (1983-10-01), Pervier et al.
patent: 4415345 (1983-11-01), Swallow
patent: 4501600 (1985-02-01), Pahade

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