Process for cleaning of waste materials by refining and/or...

Details Process for cleaning of waste materials by refining and/or... Process for cleaning of waste materials by refining and/or...

C - Chemistry, Metallurgy

10

G

23/338

C10G 67/06 (2006.01) C10M 175/00 (2006.01) C10M 175/02 (2006.01) A62D 3/00 (2006.01)

Patent

CA 1286087

A B S T R A C T LIQUID WASTE MATERIALS CONTAMINATED WITH BIOLOGICALLY DIFFICULT TO DEGRADE HALOGEN, NITROGEN AND/OR SULFUR CONTAINING COMPOUNDS AND CONTAINING 0.1-60 WT.% HALOGEN UP TO 10 WT% SULFUR AND/OR SMALL AMOUNTS OF NITROGEN, ARE CLEANED OR PURIFIED BY CONDITIONING THESE MATERIALS AND PASSING THEM TOGETHER WITH HYFROGEN OVER A GUARD COLUMN FILLED WITH ABSORBENT, PREFERABLY GRANULAR ALUMINA, UNDER A HYDROGEN PRESSURE OF 30-80 BAR AND WITH AN LHSV 0.5-2.5 H-1: AND SUBSEQUENTLY PASSING THE STREAM OVER A HYDROGENATING CATALYST, PREFERABLY A CATALYST COMPRISING NICKEL OR COBALT PLUS MOLYBDENUM SUPPORTED ON AN INERT CARRIER. THE CATALYST IS PREFERABLY A SULFIDED CATALYST.

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