FIELD: chemistry.
SUBSTANCE: invention relates to a method of producing a lean liquid hydrate inhibitor composition from a rich liquid hydrate inhibitor composition in which the liquid hydrate inhibitor is characterised by a boiling point above that of water. According to the invention, two lean inhibitors are obtained, one free of salt and the other containing salt.
EFFECT: dividing into two the extracted inhibitors, which are mixed in different combinations to obtain different lean products, enables to add the inhibitor to different vessels or pipes where different concentrations of the pH stabiliser are required; the need for hydrate inhibitors in separation systems can be lowered to a minimum or eliminated, and the method of using the hydrate inhibitor can be simplified.
5 cl, 1 dwg
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