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Effects of water and alcohols on the polymerization of furan during its acid-catalyzed conversion into benzofuran

机译：水和醇对酸催化转化生呋喃聚合的影响

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摘要

Furan, an important product from catalytic pyrolysis of biomass, has the potential to be further converted into value-added chemicals or biofuels. This study investigated the conversion of furan into benzofuran over a Bronsted acid catalyst (Amberlyst 70) at 140-190 degrees C in various solvents. With water as the solvent, furan could barely make its way to benzofuran as its polymerization dominated. With methanol as the solvent, the polymerization of furan was suppressed and benzofuran formation was enhanced substantially. This is because in methanol, the reactive intermediates (i.e., aldehydes) were stabilized and their involvement in polymerization reactions was suppressed. Other alcohols showed similar effects on suppressing polymerization. In dimethyl sulfoxide (DMSO), the polymerization of furan was also effectively suppressed. However, furan was not converted to benzofuran but to levulinic acid via a distinct reaction route.
机译：来自生物质催化热解的重要产品，呋喃具有进一步转化为增值化学品或生物燃料的潜力。 本研究研究了在各种溶剂中在140-190℃下将Furan转化为苯并呋喃（Amberlyst 70）。 用水作为溶剂，呋喃几乎可以通过其聚合占主导地位，使其进入苯并呋喃。 用甲醇作为溶剂，抑制呋喃的聚合，并大大提高了苯并呋喃形成。 这是因为在甲醇中，稳定反应性中间体（即醛）并抑制它们对聚合反应的参与。 其他醇表现出对抑制聚合的类似效果。 在二甲基亚砜（DMSO）中，还有效地抑制了呋喃的聚合。 然而，呋喃未转化为Benzofuran，而是通过不同的反应途径转化为苯并呋喃。

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  • 来源
    《RSC Advances》 |2016年第46期|共13页
  • 作者

    Hu Xun; Jiang Shengjuan; Kadarwati Sri; Dong Dehua; Li Chun-Zhu;

  • 作者单位

    Curtin Univ Technol Fuels &

    Energy Technol Inst GPO Box U1987 Perth WA 6845 Australia;

    Curtin Univ Technol Fuels &

    Energy Technol Inst GPO Box U1987 Perth WA 6845 Australia;

    Curtin Univ Technol Fuels &

    Energy Technol Inst GPO Box U1987 Perth WA 6845 Australia;

    Curtin Univ Technol Fuels &

    Energy Technol Inst GPO Box U1987 Perth WA 6845 Australia;

    Curtin Univ Technol Fuels &

    Energy Technol Inst GPO Box U1987 Perth WA 6845 Australia;

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  • 正文语种 eng
  • 中图分类 化学;
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