title: Depolymerization of steam-treated lignin for the production of green chemicals.
abstract: In this short communication, lignin produced by steam processing of agricultural (hemp) and forestry (softwood) was depolymerised via a base catalysis to produce a combination of monomers, dimers, trimers and residual char. The lignin broth produced directly after the base-catalysed steam treatment was treated under pressure (from 1300 to 1900 psi) at temperatures varying from 300 to 330 °C in a custom-made batch reactor. The lignin concentration in the aqueous base solution was 10 wt% whilst the NaOH concentration was 5 wt%. Identification of 26 compounds has been done: 17 compounds were common to the two feedstocks while the remaining 9 were specific to each feedstock used.
authors.affiliation: Departement of Chemical Engineering, Université de Sherbrooke, Sherbrooke, Québec, Canada J1K 2R1. jean-michel.lavoie2@usherbrooke.ca
authors.forename: Jean-Michel
authors.initials: JM
authors.lastname: Lavoie
authors.forename: Wadou
authors.initials: W
authors.lastname: Baré
authors.forename: Mathieu
authors.initials: M
authors.lastname: Bilodeau
mesh_terms: D001709:Biotechnology / Q000379:methods*; D002188:Cannabis / Q000737:chemistry*; D002384:Catalysis; D005591:Chemical Fractionation / Q000379:methods*; D008031:Lignin / Q000032:analysis / Q000737:chemistry*; D011312:Pressure; D012972:Sodium Hydroxide; D013227:Steam
chemical_list: D013227:Steam; D012972:Sodium Hydroxide; D008031:Lignin