B - Operations – Transporting – 01 – D
Patent
B - Operations, Transporting
01
D
182/11
B01D 15/00 (2006.01) B01D 17/02 (2006.01)
Patent
CA 1108999
ABSTRACT OF THE DISCLOSURE An improved process for removing oil from oily waste water streams, particularly from aqueous refinery streams wherein the oil is present as a stable oil-in-water emulsion, which comprises passing the stream through a filter bed of particulate, unprocessed PVC or its copolymers mixed with a granular, inert and preferably porous filler material such as particles of coke or carbon. The improve- ment substantially increases bed life and has unexpectedly resulted in higher oil- absorption capacity of the filter bed.
297398
Borden Ladner Gervais Llp
Exxon Research And Engineering Company
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