title: Catalytic ethanolysis and gasification of kraft lignin into aromatic alcohols and H2-rich gas over Rh supported on La2O3/CeO2-ZrO2.
abstract: Efficient catalytic ethanolysis and gasification of kraft lignin were conducted over a versatile supported catalyst Rh/La2O3/CeO2-ZrO2 to give high-value aromatic alcohols and H2-rich gas. The removal of phenolic hydroxyl group was the most prevalent reaction, and importantly, almost no phenols, undesired char and saturating the aromatic ring were detected. Meanwhile, the feedstock and solvent both played key roles in H2 generation that contributed to the hydrodeoxygenation of liquid components and made the whole catalytic process out of H2 supply. Reusability tests of catalyst indicated that the crystalline phase transition and agglomeration of support, the loss of noble metal Rh and carbon deposition were the possible reasons for its deactivation in supercritical ethanol. Comparing with water, methanol and isopropanol system, ethanol was the only effective solvent for the depolymerization process.
authors.affiliation: Shanghai Key Laboratory of Green Chemistry and Chemical Processes, College of Chemistry and Molecular Engineering, East China Normal University, 500 Dongchuan Road, Shanghai 200241, China.
authors.forename: Jing
authors.initials: J
authors.lastname: Yang
authors.affiliation: Shanghai Key Laboratory of Green Chemistry and Chemical Processes, College of Chemistry and Molecular Engineering, East China Normal University, 500 Dongchuan Road, Shanghai 200241, China.
authors.forename: Liang
authors.initials: L
authors.lastname: Zhao
authors.affiliation: Shanghai Key Laboratory of Green Chemistry and Chemical Processes, College of Chemistry and Molecular Engineering, East China Normal University, 500 Dongchuan Road, Shanghai 200241, China.
authors.forename: Chunze
authors.initials: C
authors.lastname: Liu
authors.affiliation: Shanghai Key Laboratory of Green Chemistry and Chemical Processes, College of Chemistry and Molecular Engineering, East China Normal University, 500 Dongchuan Road, Shanghai 200241, China. Electronic address: ecnu_yywang@163.com.
authors.forename: Yuanyuan
authors.initials: Y
authors.lastname: Wang
authors.affiliation: Shanghai Key Laboratory of Green Chemistry and Chemical Processes, College of Chemistry and Molecular Engineering, East China Normal University, 500 Dongchuan Road, Shanghai 200241, China.
authors.forename: Liyi
authors.initials: L
authors.lastname: Dai
mesh_terms: D000438:Alcohols / Q000737:chemistry; D002384:Catalysis; D008031:Lignin / Q000737:chemistry*; D058105:Polymerization; D012037:Refuse Disposal / Q000379:methods*
chemical_list: D000438:Alcohols; C076151:Kraft lignin; D008031:Lignin
keywords: Aromatic alcohol; Hydrogen production; Kraft lignin; Rh/La(2)O(3)/CeO(2)–ZrO(2); Supercritical ethanol