Natural gas deacidizing and dehydration method

Details Natural gas deacidizing and dehydration method Natural gas deacidizing and dehydration method

2007-02-13

2007-02-13

Johnson, Edward M. (Department: 1754)

Chemistry of inorganic compounds

Modifying or removing component of normally gaseous mixture

Carbon dioxide or hydrogen sulfide component

Reexamination Certificate

active

10729965

ABSTRACT:
The natural gas is deacidized by contacting in zone3with a solvent containing amine in aqueous solution. The gas is then dehydrated by contacting in zone4with a solvent very rich in amine. After the contacting operations, the solvent containing H2S. and water is expanded in drum9, then regenerated in column11. Part of the regenerated solvent is sent to zone3. Another part of the regenerated solvent is vacuum distilled in column18so as to produce an amine-rich solvent that is sent to zone4.

REFERENCES:
patent: 4997630 (1991-03-01), Wagner
patent: 5462721 (1995-10-01), Pounds et al.
patent: 5622681 (1997-04-01), Grierson et al.
patent: 5693297 (1997-12-01), Turner et al.
patent: 2191419 (1987-12-01), None
patent: 9804337 (1998-02-01), None

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