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Title: Removal of hydrogen sulfide as ammonium sulfate from hydropyrolysis product vapors

A system and method for processing biomass into hydrocarbon fuels that includes processing a biomass in a hydropyrolysis reactor resulting in hydrocarbon fuels and a process vapor stream and cooling the process vapor stream to a condensation temperature resulting in an aqueous stream. The aqueous stream is sent to a catalytic reactor where it is oxidized to obtain a product stream containing ammonia and ammonium sulfate. A resulting cooled product vapor stream includes non-condensable process vapors comprising H.sub.2, CH.sub.4, CO, CO.sub.2, ammonia and hydrogen sulfide.
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Issue Date:
OSTI Identifier:
Gas Technology Institute DOEEE
Patent Number(s):
Application Number:
Contract Number:
Resource Relation:
Patent File Date: 2014 Oct 13
Research Org:
Gas Technology Institute, Des Plaines, IL (United States)
Sponsoring Org:
Country of Publication:
United States

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patent, July 2013

Removal of hydrogen sulfide as ammonium sulfate from hydropyrolysis product vapors
patent, October 2014

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