Liquid-Phase Dehydration of Glycerol to Acrolein with ZSM-5-Based Catalysts in the Presence of a Dispersing Agent.

ABSTRACT: Liquid-phase dehydration of glycerol to acrolein was investigated with solid acid catalysts, including H-ZSM-5, H₃PO₄-modified H-ZSM-5, H₃PW₁₂O₄₀·14H₂O and Cs_2.5H_0.5PW₁₂O₄₀, in the presence of sulfolane ((CH₂)₄SO₂) as a dispersing agent under atmospheric pressure N₂ in a batch reactor. High weak-acidity H-ZSM-5, high temperatures and high-boiling-point sulfolane improved the activity and selectivity for the production of acrolein through suppressing the formation of polymers and coke and promoting the diffusion of glycerol and products. Brønsted acid sites were soundly demonstrated to be responsible for dehydration of glycerol to acrolein

SUBMITTER: Huang L 

PROVIDER: S-EPMC10143559 | biostudies-literature | 2023 Apr

REPOSITORIES: biostudies-literature