Gas processing method using a filtered glycol solution

Details Gas processing method using a filtered glycol solution Gas processing method using a filtered glycol solution

2007-09-11

2007-09-11

Fortuna, Ana (Department: 1723)

Liquid purification or separation

Processes

Liquid/liquid solvent or colloidal extraction or diffusing...

C210S651000, C095S200000, C095S205000, C095S206000, C203S047000

Reexamination Certificate

active

10901971

ABSTRACT:
The invention relates to a method and to a plant for processing a gas by means of a glycol solution wherein a feed comprising a gas, a glycol, water and salts is subjected to a first stage (5) of separating the gas from a liquid effluent and said liquid effluent is subjected to a dehydration stage (14) to recover a dehydrated liquid effluent, characterized in that the salts contained in the liquid effluent, dehydrated or not, are eliminated in a membrane separation stage (10) by means of a driving force generated by mechanical pressure difference on either side of a membrane of pore size ranging between 5 and 100 Angstrom. The invention also relates to the use of the method and of the plant for regeneration of a liquid compound of the glycol family used for hydrate formation prevention when using a natural gas.

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Database WPI, Section CH Week 200013, Derwent Publications, London, GB; Class H01, AN 2000-146107 and RU 2 121 392 Nov. 10, 1998.

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