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Biodiesel synthesis over Sr/MgO solid base catalyst

机译：Sr / MgO固体碱催化剂合成生物柴油

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摘要

Sr/MgO catalysts for biodiesel production were synthesized by the wet impregnation method. The formation of basic sites on the catalysts was investigated by thermal analysis, XRD, and Hammett indicator method. The calcination temperature and Sr/MgO molar ratio affect the structure as well as the catalytic activities. Among the catalysts tested, the best performance catalyst was prepared with a 0.10 Sr/MgO molar ratio and a calcination temperature of 600 ℃. This catalyst had a base strength in the range of 15.0-18.4 and was also active for biodiesel synthesis at room temperature. The catalytic activities under various reaction variables were also evaluated. The biodiesel yield of 93% was achieved within 30 min from the transesterification of soybean oil with methanol at 65 ℃ using 5 wt.% loading of the synthesized catalyst and methanol to oil molar ratio of 12:1.
机译：采用湿法浸渍法合成了生物柴油生产中的Sr / MgO催化剂。通过热分析，XRD和Hammett指示剂方法研究了催化剂上碱性位点的形成。煅烧温度和Sr / MgO摩尔比影响结构以及催化活性。在所测试的催化剂中，以0.10 Sr / MgO的摩尔比和600℃的煅烧温度制备了性能最佳的催化剂。该催化剂的基本强度为15.0-18.4，并且在室温下对生物柴油合成也有活性。还评估了各种反应变量下的催化活性。大豆油与甲醇在65℃进行酯交换反应后30分钟内，使用5重量％的合成催化剂和甲醇与油的摩尔比为12：1，可实现93％的生物柴油收率。

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  • 来源
    《Fuel》 |2013年第4期|279-284|共6页
  • 作者

    Jonggol Tantirungrotechai; Sukanya Thepwatee; Boonyawan Yoosuk;

  • 作者单位

    Center for Catalysis, Department of Chemistry and Center of Excellence for Innovation in Chemistry, Faculty of Science, Mahidol University, Rama 6 Road, Bangkok 10400, Thailand;

    Center for Catalysis, Department of Chemistry and Center of Excellence for Innovation in Chemistry, Faculty of Science, Mahidol University, Rama 6 Road, Bangkok 10400, Thailand;

    National Metal and Materials Technology Center (MTEC), National Science and Technology Development Agency, Thailand Science Park, Phahonyothin Road, Pathumthani 12120, Thailand;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    biodiesel; heterogeneous catalysis; solid base; Sr/MgO; alkali earth oxide;

    机译：生物柴油非均相催化坚实的基础锶/镁碱土金属氧化物;

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