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Title: Process for improving the energy density of feedstocks using formate salts

Patent ·
OSTI ID:1213458
; ;

Methods of forming liquid hydrocarbons through thermal deoxygenation of cellulosic compounds are disclosed. Aspects cover methods including the steps of mixing a levulinic acid salt-containing feedstock with a formic acid salt, exposing the mixture to a high temperature condition to form hydrocarbon vapor, and condensing the hydrocarbon vapor to form liquid hydrocarbons, where both the formic acid salt and the levulinic acid salt-containing feedstock decompose at the high temperature condition and wherein one or more of the mixing, exposing, and condensing steps is carried out a pressure between about vacuum and about 10 bar.

Research Organization:
University of Maine System Board of Trustees, Bangor, ME (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
FG36-08GO18165
Assignee:
University of Maine System Board of Trustees (Bangor, ME)
Patent Number(s):
9,120,712
Application Number:
13/331,210
OSTI ID:
1213458
Resource Relation:
Patent File Date: 2011 Dec 20
Country of Publication:
United States
Language:
English

References (14)

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Method for conversion of biomass to chemicals and fuels patent March 2000
Processes for catalytic conversion of lignin to liquid bio-fuels and novel bio-fuels patent June 2011
Hydrogenation Process for the Conversion of a Carboxylic Acid or an Ester Having a Carbonyl Group patent-application September 2007
Production of Levulinic Acid and Levulinate Esters from Biomass patent-application December 2010
Catalytic Conversion of Cellulose to Liquid Hydrocarbon Fuels by Progressive Removal of Oxygen to Facilitate Separation Processes and Achieve High Selectivities patent-application December 2010
Motor Fuels From Biomass Pyrolysis journal May 2008
Chemical Structures Present in Biofuel Obtained from Lignin journal November 2008
Phenols from Lignin journal May 2008
Towards a Lignincellulosic Biorefinery: Direct One-Step Conversion of Lignin to Hydrogen-Enriched Biofuel journal March 2008
Optimizing solvolysis conditions for integrated depolymerisation and hydrodeoxygenation of lignin to produce liquid biofuel journal May 2009
Transfer hydrogenation of levulinic acid under hydrothermal conditions catalyzed by sulfate as a temperature-switchable base journal January 2010
Energy densification of levulinic acid by thermal deoxygenation journal January 2010
Integration of Homogeneous and Heterogeneous Catalytic Processes for a Multi-step Conversion of Biomass: From Sucrose to Levulinic Acid, γ-Valerolactone, 1,4-Pentanediol, 2-Methyl-tetrahydrofuran, and Alkanes journal April 2008

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