Reaction Route Selection for Cellulose Hydrogenolysis into C₂/C₃ Glycols by ZnO-Modified Ni-W/β-zeolite Catalysts.

ABSTRACT: A β-zeolite-supported nickel and tungsten catalyst (Ni-W/β) was employed to generate C₂/C₃ glycols (ethylene and propylene glycols) in a satisfactory yield from cellulose. After optimizing the acidity of the support, the Ni-W synergy and the co-catalyst, the yield of C₂/C₃ glycols reached 70.1% (C %), with propylene glycol accounting for 51.1% of the product. This performance was attributed to the effective control of the major reaction steps, namely, hydrolysis, isomerization, retro-aldol condensation and hydrogenation, by the tailored Ni-W-ZnO/β catalyst. The characterization and reaction results indicated that the cellulose hydrolysis step was promoted by the appropriate acidic sites of the β-zeolite, and the reaction routes to C₂/C

SUBMITTER: Gu M 

PROVIDER: S-EPMC6697703 | biostudies-literature | 2019 Aug

REPOSITORIES: biostudies-literature