The method enables the antihydrate compounds contained in a condensed-hydrocarbon liquid feedstock arriving through pipe
1
to be extracted. The liquid feedstock is brought into contact, in zone ZA, with a non-aqueous ionic liquid having the general formula Q
+
A
31
, where Q
+
designates an ammonium, phosphonium, and/or sulfonium cation, and A
31
designates an anion able to form a liquid salt. The antihydrate compounds in the liquid hydrocarbon feedstock evacuated through pipe
2
are eliminated. The ionic liquid charged with antihydrate compounds is evacuated through pipe
3
, then introduced into evaporator DE to be heated in order to evaporate the antihydrate compounds. The regenerated ionic liquid is recycled through pipes
8
and
9
to zone ZA. The antihydrates are evacuated through pipe
7
a.
该方法使得通过管道1到达的凝缩烃液体原料中所含的抗
水合物能够被提取。液体原料在区域ZA中与具有一般公式Q+A31的非
水离子液体接触,其中Q+代表
铵、
磷铵和/或磺
铵阳离子,A31代表能够形成液体盐的阴离子。通过管道2排出的液态烃原料中的抗
水合物被清除。带有抗
水合物的
离子液体通过管道3排出,然后被引入蒸发器DE中加热,以蒸发抗
水合物。再生的
离子液体通过管道8和9循环回到区域ZA。抗
水合物通过管道7a排出。