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US 12,146,113 B2Granted
Production of bio-based liquefied petroleum gas
AssigneeLanzaTech, Inc.
InventorsRalph Gillespie, Michelle Kocal
Life of this patent
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Abstract
The disclosure provides methods for the production of liquefied petroleum gas from sustainable feedstocks, including methods comprising conversion of alcohols produced by gas fermentation for the production of propane and/or butane.
Claims10
A method of producing liquefied petroleum gas comprising:
- a) producing a dehydration feed stream comprising a C3 alcohol and/or a C4 alcohol by microbial fermentation of a gaseous substrate comprising CO, CO2, CH4, or any mixture thereof, wherein the dehydration feed stream has a water content of less than 30 wt %;
- b) contacting, in a dehydration reactor, the dehydration feed stream with a dehydration catalyst to produce a first reactor effluent stream comprising a C3 alkene and/or a C4 alkene;
- and
- c) contacting, in a hydrogenation reactor, the first reactor effluent stream comprising the C3 alkene and/or the C4 alkene with hydrogen and a hydrogenation catalyst to produce a product stream comprising propane and/or butane.
1 more element
Dependencies are inferred from the claim text.