Patent ID: 8668763
Filing Date: 2014-03-11
Classification: B01D

Abstract:
1. A liquid degassing apparatus, comprising: a plurality of degassing modules for degassing respective liquid compositions, each of said degassing modules including a chamber separated by a gas-permeable, liquid-impermeable membrane into a permeate side and a retentate side, wherein said retentate sides of said chambers are liquidly disconnected from one another; a manifold fluidly connecting said permeate sides of said chambers through outlet conduits individually extending between said manifold and respective vacuum ports in fluid communication with said permeate sides of said chambers, said manifold further fluidly connecting said outlet conduits with a main degassing line at a connection; a vacuum pump fluidly coupled to said main degassing line for evacuating said permeate sides of said chambers to a pressure set point; and an air vent permitting air flow into said apparatus between said connection and said chambers at an inflow rate that is equal to or greater than a combined average backflow rate of said plurality of degassing modules, but not exceeding a maximum capacity flow rate defining a maximum capacity of said vacuum pump for maintaining said pressure set point.