Closed loop gas dehydration process and apparatus

Details Closed loop gas dehydration process and apparatus Closed loop gas dehydration process and apparatus

B - Operations, Transporting

01

D

183/2

B01D 53/22 (2006.01) B01D 53/26 (2006.01) B01D 61/28 (2006.01) B01D 63/02 (2006.01)

Patent

CA 2007917

P-312 CLOSED LOOP GAS DEHYDRATION PROCESS AND APPARATUS ABSTRACT An apparatus (10) for drying a wet stream of hydrocarbon gas includes a plurality of hollow fiber membranes (403 for osmotically imbibing water from a wet gas stream flowing on one side (48) of the membranes and forming a dried retentate stream and diffusing a water permeate to the second side (46) thereof and preventing imbibing an diffusion of hydrocarbon and halogenated hydrocarbons therethrough. The water permeate is removed from the cores (44) of the membranes (40) and the dried hydrocarbon and halogenated hydrocarbon retentate stream is removed from the second side (48) of the membranes (40). A portion of the dried retentate stream is recirculated as the sweep stream through cores (44) of the membranes in a closed fluid flow circuit.

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