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.
Claims17
1-15. (canceled)
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;
- 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;
- and
- c) separating remaining hydrate inhibitor from the slurry thereby obtaining a concentrated rest comprising the heavy metal salt particles.
Rich hydrate inhibitor heavy metal ions removal system, wherein the system comprises a reaction tank with a rich hydrate inhibitor inlet, at least one heavy metal ions reactant inlet, and a reacted rich hydrate inhibitor outlet in fluid communication with a three phase disc stack centrifuge comprising a hydrocarbon outlet, a recovered hydrate inhibitor outlet and a slurry outlet.
Dependencies are inferred from the claim text.