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Effects of Reaction Conditions on Synthesis of Butadiene from Formaldehyde and Propylene
https://orcid.org/https://orcid.org/0000-0001-5634-6690
https://orcid.org/https://orcid.org/0000-0003-4931-9568
https://orcid.org/https://orcid.org/0000-0001-8646-3679
https://orcid.org/https://orcid.org/0000-0002-8763-2232
https://orcid.org/https://orcid.org/0000-0002-4800-1657
https://orcid.org/https://orcid.org/0000-0002-8742-2892
This study investigated the effects of reaction conditions in a one-step gas-phase synthesis of butadiene from formaldehyde and propylene over a SiO2-supported silicotungstic heteropoly acid catalyst. The physicochemical properties of the catalyst were examined by X-ray fluorescence spectroscopy, low-temperature nitrogen adsorption, XRD, SEM, and NH3–TPD. It was found that, with increase in reaction temperature, the yield of butadiene passes through its maximum. Increasing the WHSV of the reactant feed lowers the formaldehyde conversion and enhances the butadiene selectivity. Raising the propylene to formaldehyde molar ratio increases the formaldehyde conversion, with the butadiene selectivity passing through its maximum. Finally, diluting the reactants with an inert gas barely affects the process performance.
Effects of Reaction Conditions on Synthesis of Butadiene from Formaldehyde and Propylene
https://orcid.org/https://orcid.org/0000-0001-5634-6690
https://orcid.org/https://orcid.org/0000-0003-4931-9568
https://orcid.org/https://orcid.org/0000-0001-8646-3679
https://orcid.org/https://orcid.org/0000-0002-8763-2232
https://orcid.org/https://orcid.org/0000-0002-4800-1657
https://orcid.org/https://orcid.org/0000-0002-8742-2892
This study investigated the effects of reaction conditions in a one-step gas-phase synthesis of butadiene from formaldehyde and propylene over a SiO2-supported silicotungstic heteropoly acid catalyst. The physicochemical properties of the catalyst were examined by X-ray fluorescence spectroscopy, low-temperature nitrogen adsorption, XRD, SEM, and NH3–TPD. It was found that, with increase in reaction temperature, the yield of butadiene passes through its maximum. Increasing the WHSV of the reactant feed lowers the formaldehyde conversion and enhances the butadiene selectivity. Raising the propylene to formaldehyde molar ratio increases the formaldehyde conversion, with the butadiene selectivity passing through its maximum. Finally, diluting the reactants with an inert gas barely affects the process performance.
Effects of Reaction Conditions on Synthesis of Butadiene from Formaldehyde and Propylene
https://orcid.org/https://orcid.org/0000-0001-5634-6690
https://orcid.org/https://orcid.org/0000-0003-4931-9568
https://orcid.org/https://orcid.org/0000-0001-8646-3679
https://orcid.org/https://orcid.org/0000-0002-8763-2232
https://orcid.org/https://orcid.org/0000-0002-4800-1657
https://orcid.org/https://orcid.org/0000-0002-8742-2892
This study investigated the effects of reaction conditions in a one-step gas-phase synthesis of butadiene from formaldehyde and propylene over a SiO2-supported silicotungstic heteropoly acid catalyst. The physicochemical properties of the catalyst were examined by X-ray fluorescence spectroscopy, low-temperature nitrogen adsorption, XRD, SEM, and NH3–TPD. It was found that, with increase in reaction temperature, the yield of butadiene passes through its maximum. Increasing the WHSV of the reactant feed lowers the formaldehyde conversion and enhances the butadiene selectivity. Raising the propylene to formaldehyde molar ratio increases the formaldehyde conversion, with the butadiene selectivity passing through its maximum. Finally, diluting the reactants with an inert gas barely affects the process performance.
Effects of Reaction Conditions on Synthesis of Butadiene from Formaldehyde and Propylene
Pet. Chem.
Ponomareva, O. A. (author) / Artsiusheuski, M. A. (author) / Dobryakova, I. V. (author) / Maerle, A. A. (author) / Efimov, A. V. (author) / Ivanova, I. I. (author)
Petroleum Chemistry ; 62 ; 972-979
2022-08-01
8 pages
Article (Journal)
Electronic Resource
English
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