BIOGAS PURIFICATION SYSTEM AND METHODS OF USE THEREOF

摘要

The present disclosure relates to a biogas purification system and method for removal of sulfur and halogenated compounds and acidic reaction products from biogas. A contaminant removal module is supplied containing a catalytic oxidation catalyst comprising vanadium oxide (V2O5) on a metal oxide support where the catalyst oxidizes 85% or more of the sulfur and halogenated compounds. This may be followed by a contaminant removal module containing alkali impregnated carbon which removes 85% or more of the acidic reaction products. If siloxane impurities are present in the biogas, one may utilize a contaminant removal module containing alumina oxide.

主权项

1. A biogas purification system for removal of sulfur and halogenated compounds and acidic reaction products from biogas, the system comprising:
a contaminant removal module containing a catalytic oxidation catalyst comprising vanadium oxide (V2O5) on a metal oxide support where said catalyst oxidizes 85% or more of said sulfur and halogenated compounds; a contaminant removal module containing alkali impregnated carbon wherein the alkali comprises an ionic salt of an alkali metal or alkaline earth metal and is present at a level of 5-15% by weight wherein said contaminant removal module removes 85% or more of said acidic reaction products.