A catalytic biofuel production strategy involving separate conversion of hemicellulose and cellulose using 2-sec-butylphenol (SBP) and lignin-derived (LD) alkylphenol solvents

Bioresource Technology
Sunghoon Kim, Jeehoon Han

Abstract

A strategy in which the hemicellulose and cellulose fractions of lignocellulosic biomass are converted separately to jet fuel-range liquid hydrocarbon fuels (butene oligomers) through catalytic processes is developed. Dilute sulfuric acid (SA)-catalyzed pretreatment fractionates the first biomass into cellulose and hemicellulose-derived xylose, and these are then converted separately to levulinic acid (LA) using 2-sec-butylphenol (SBP) and lignin-derived (LD) alkylphenol solvents, respectively. LA is upgraded catalytically to butene oligomers via γ-valerolactone (GVL) and butene intermediates. Separation subsystems are designed to recover the alkylphenol solvents and biomass-derived intermediates (LA and GVL) for combination with the catalytic conversion subsystems of hemicellulose, cellulose, and lignin. In addition, a heat exchanger network (HEN) design is presented to satisfy the energy requirements of the integrated process from combustion of biomass residues (degradation products). Finally, a technoeconomic analysis shows that the proposed process ($3.37/gallon of gasoline) is an economically competitive alternative to current biofuel production approaches.

References

Dec 14, 2004·Bioresource Technology·Nathan MosierMichael Ladisch
Aug 23, 2005·Bioresource Technology·Tim Eggeman, Richard T Elander
Sep 14, 2006·Chemical Reviews·George W HuberAvelino Corma
Mar 9, 2010·Bioresource Technology·Edgard Gnansounou, Arnaud Dauriat
Jul 2, 2011·ChemSusChem·David Martin AlonsoJames A Dumesic
Feb 24, 2015·Bioresource Technology·Jeehoon HanChristos T Maravelias

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