System and method for removal of heavy metal ions from a rich hydrate inhibitor stream
AssigneeFjords Processing AS
InventorKristian Jensen
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Abstract
Method and system for removal of heavy metal ions from a rich hydrate inhibitor stream, wherein the method comprises a) adding a selective heavy metal reactant to the rich hydrate inhibitor stream, forming a fluid stream comprising heavy metal salt particles, b) separating the obtained fluid stream in three streams a hydrocarbon stream, a recovered rich hydrate inhibitor stream, and a slurry comprising the heavy metal salt particles, c) separating remaining hydrate inhibitor from the slurry thereby obtaining a concentrated rest comprising the heavy metal salt particles.
Claims10
A method for removal of heavy metal ions from a rich hydrate inhibitor stream, wherein the method comprises:
- a) adding a selective heavy metal reactant to the rich hydrate inhibitor stream, forming a fluid stream comprising heavy metal salt particles,
- wherein the selective heavy metal reactant is a sulphide;
- b) separating the obtained fluid stream into three streams:
- a hydrocarbon stream, a recovered rich hydrate inhibitor stream, and a slurry comprising the heavy metal salt particles;
- and
- c) separating remaining hydrate inhibitor from the slurry thereby obtaining a concentrated rest comprising the heavy metal salt particles.
Dependencies are inferred from the claim text.