Method of purifying a natural gas by mercaptan adsorption

Details Method of purifying a natural gas by mercaptan adsorption Method of purifying a natural gas by mercaptan adsorption

2007-05-01

2007-05-01

Lawrence, Frank M. (Department: 1724)

Gas separation: processes

Solid sorption

Inorganic gas or liquid particle sorbed

C095S148000, C095S235000, C208S20800M

Reexamination Certificate

active

10973294

ABSTRACT:
The raw natural gas is pretreated in treating unit30.The treated gas is then purified by adsorption of the mercaptans in first enclosure31.The various cuts that make up the purified gas are separated in fractionating unit34.Part of the methane making up the purified gas is saturated with a C5+ hydrocarbon in contactor33,then it is fed into second enclosure32so as to regenerate the adsorbent material contained in this second enclosure. The gas from the second enclosure is washed in unit35,then recycled.

REFERENCES:
patent: 4830733 (1989-05-01), Nagji et al.
patent: 4957715 (1990-09-01), Grover et al.
patent: 5659109 (1997-08-01), Fernandez de la Vega et al.
patent: 5746807 (1998-05-01), Thelen et al.
patent: 6743405 (2004-06-01), Siriwardane

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