Thrombin activatable fibrinolysis inhibitor (TAFI) at the interface between coagulation and fibrinolysis.

A membrane separation process combined with a cryogenic separation process for treating a gas stream containing methane, nitrogen and at least one other component. The membrane separation process works by preferentially permeating methane and the other component and rejecting nitrogen. The process is particularly useful in removing components such as water, carbon dioxide or C3+ hydrocarbons that might otherwise freeze and plug the cryogenic equipment.