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Peking U, SINOPEC workforce develops methodology for direct conversion of isopropanol to C6+ high-octane blendstock

Peking U, SINOPEC workforce develops methodology for direct conversion of isopropanol to C6+ high-octane blendstock

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Researchers from Peking College and SINOPEC have developed a one-post methodology for the synthesis of C6+ branched compounds from isopropanol condenstation on Ni/MoC catalysts. The branched-chain selectivity in C6+ and nonnecessity of H2 give this route benefit in high-octane gasoline blendstock manufacturing. Isopropanol may be derived from lignocellulose, making it a possible biomass platform molecule.

An open-access paper on their work seems within the RSC journal Inexperienced Chemistry.

The best C6+ manufacturing charge reaches 7.5g ∙ gcat-1∙ h-1 over 1.2Ni/MoC with a 100% selectivity of branched carbon chain.

Isopropanol condensation over Ni/MoC catalysts with totally different Ni loadings. Response situations: isopropanol 1 g, cyclohexane 39 g, catalyst 50 mg (catalyst/isopropanol mass ratio: 0.05), N2 1 MPa, 250 °C, 500 rpm, 6 h. Zhou et al.


Extra hydrogen sources or noble metallic catalysts will not be wanted, which reveals benefit over the reported ethanol, I/ABE, or acetone condensation routes.

The response follows the standard Guerbet coupling mechanism with the steps of aldol condensation and switch hydrogenation. The excessive effectivity of 1.2Ni/MoC catalyst derives from the synergistic impact of Ni metallic website and acid website on MoC floor. This research additionally proposes a method to the manufacturing of branched carbon chain compounds through the condensation of biomass platform substrates.

—Zhou et al.

Sources

  • Wei Zhou, Zirui Gao, Meng Wang, Genghuang Wu, Junfeng Rong and Ding Ma (2022) “Direct conversion of isopropanol to C6+ branched compounds as high-octane gasoline blendstock” Inexperienced Chemistry doi: 10.1039/D2GC01200F

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