Method for extracting an antihydrate contained in condensed...

Details Method for extracting an antihydrate contained in condensed... Method for extracting an antihydrate contained in condensed...

2005-02-14

2008-12-30

Caldarola, Glenn (Department: 1797)

Mineral oils: processes and products

Fractionation

Distillation

C585S802000, C585S833000, C062S625000, C062S632000

Reexamination Certificate

active

07470359

ABSTRACT:
The method enables the antihydrate compounds contained in a condensed-hydrocarbon liquid feedstock arriving through pipe1to be extracted. The liquid feedstock is brought into contact, in zone ZA, with a non-aqueous ionic liquid having the general formula Q+A31, where Q+designates an ammonium, phosphonium, and/or sulfonium cation, and A31designates an anion able to form a liquid salt. The antihydrate compounds in the liquid hydrocarbon feedstock evacuated through pipe2are eliminated. The ionic liquid charged with antihydrate compounds is evacuated through pipe3, then introduced into evaporator DE to be heated in order to evaporate the antihydrate compounds. The regenerated ionic liquid is recycled through pipes8and9to zone ZA. The antihydrates are evacuated through pipe7a.

REFERENCES:
patent: 6339182 (2002-01-01), Munson et al.
patent: 2002/0189444 (2002-12-01), Brennecke et al.
patent: 2004/0133058 (2004-07-01), Arlt et al.
patent: 0 362 023 (1990-04-01), None
patent: WO 02074718 (2002-09-01), None
patent: 2003/086605 (2003-10-01), None
patent: 2003/086605 (2003-10-01), None

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