title: Impact of lignin structure on oil production via hydroprocessing with a copper-doped porous metal oxide catalyst.
abstract: A copper-catalyzed depolymerization strategy was employed to investigate the impact of lignin structure on the distribution of hydroprocessing products. Specifically, lignin was extracted from beech wood and miscanthus grass. The extracted lignins, as well as a commercial lignin (P1000), were then fractionated using ethyl acetate to provide three different portions for each source of lignin [total of 9 fractions]. Each fraction was structurally characterized and treated with a copper-doped porous metal oxide (Cu-PMO) catalyst under 4MPa H2and at 180°C for 12h. The reaction conditions provided notable yields of oil for each fraction of lignin. Analysis of the oils indicated phenolic monomers of commercial interest. The structure of these monomers and the yield of monomer-containing oil was dependent on the origin of the lignin. Our results indicate that hydroprocessing with a Cu-PMO catalyst can selectively provide monomers of commercial interest by careful choice of lignin starting material.
authors.affiliation: Center for Green Chemistry and Green Engineering, School of Forestry and Environmental Studies, Yale University, New Haven, CT, USA.
authors.forename: Sebastien
authors.initials: S
authors.lastname: Gillet
authors.affiliation: Center for Green Chemistry and Green Engineering, School of Forestry and Environmental Studies, Yale University, New Haven, CT, USA.
authors.forename: Laurene
authors.initials: L
authors.lastname: Petitjean
authors.affiliation: University of Liège - Gembloux Agro-Bio Tech, Unit of Biological and Industrial Chemistry (CBI), 2, Passage des déportés, 5030 Gembloux, Belgium.
authors.forename: Mario
authors.initials: M
authors.lastname: Aguedo
authors.affiliation: Center for Green Chemistry and Green Engineering, School of Forestry and Environmental Studies, Yale University, New Haven, CT, USA.
authors.forename: Chun-Ho
authors.initials: CH
authors.lastname: Lam
authors.affiliation: University of Liège - Gembloux Agro-Bio Tech, Food Science and Formulation Department (SAF), 2, Passage des déportés, 5030 Gembloux, Belgium.
authors.forename: Christophe
authors.initials: C
authors.lastname: Blecker
authors.affiliation: Center for Green Chemistry and Green Engineering, School of Forestry and Environmental Studies, Yale University, New Haven, CT, USA. Electronic address: paul.anastas@yale.edu.
authors.forename: Paul T
authors.initials: PT
authors.lastname: Anastas
mesh_terms: D002384:Catalysis; D003300:Copper / Q000737:chemistry*; D008031:Lignin / Q000737:chemistry*; D010087:Oxides; D014934:Wood / Q000737:chemistry
chemical_list: D010087:Oxides; D003300:Copper; D008031:Lignin
keywords: Catalysis; Copper; Hydrogenolysis; Lignin; Renewable