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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.
Inventors:
; ; ;
Issue Date:
OSTI Identifier:
1159956
Assignee:
Gas Technology Institute (Des Plaines, IL) DOEEE
Patent Number(s):
8,859,831
Application Number:
13/196,645
Contract Number:
EE0002873
Resource Relation:
Patent File Date: 2011 Aug 02
Research Org:
Gas Technology Institute, Des Plaines, IL (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY

Other works cited in this record:

Integrated oxygasification and hydropyrolysis process for producing liquid and gaseous hydrocarbons
patent, November 1983

Process for the simultaneous absorption of sulfur oxides and production of ammonium sulfate
patent, September 1987

Process for the selective removal of hydrogen sulphide and carbonyl sulfide from light hydrocarbon gases containing carbon dioxide
patent, June 1988

Treatment of an aqueous stream containing water-soluble inorganic sulfide compounds
patent, May 1993

Process for the conversion of carbonaceous feedstocks to particulate carbon and methanol
patent, June 1995

Production and purification of contaminated effluent streams containing ammonium sulfate and ammonia
patent, July 1996

Disposal of hydrogen sulfide gas by conversion to sulfate ions in an aqueous solution
patent, January 2000

Integrated gasification--pyrolysis process
patent, July 2012

Controlling the synthesis gas composition of a steam methane reformer
patent, September 2012

Flue gas scrubbing apparatus and process
patent, January 2013

Method of hydrogasification of biomass to methane with low depositable tars
patent, February 2013

Hydropyrolysis of biomass for producing high quality fuels
patent, July 2013

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