刘 鹏 范明明 张萍波 谢文艳.Zr-SBA-15-SO3H固体酸催化剂的制备、表征及催化酯交换制备生物柴油[J].中国油脂,2020,45(1):82~87.[LIU Peng FAN Mingming ZHANG Pingbo XIE Wenyan.Preparation and characterization of Zr-SBA-15-SO3H solid acid catalyst and its catalytic transesterification to prepare biodiesel[J].China Oils and Fats,2020,45(1):82~87.]
Zr-SBA-15-SO3H固体酸催化剂的制备、表征及催化酯交换制备生物柴油
Preparation and characterization of Zr-SBA-15-SO3H solid acid catalyst and its catalytic transesterification to prepare biodiesel
  
DOI:10.12166/j.zgyz.1003-7969/2020.01.018
中文关键词:  磺酸官能化;SBA-15;固体酸催化剂;酯交换反应;生物柴油
英文关键词:sulfonic acid functionalization; SBA-15; solid acid catalyst; transesterification; biodiesel
基金项目:国家自然科学基金资助项目(21306063)
作者单位
刘 鹏 范明明 张萍波 谢文艳 江南大学 化学与材料工程学院,江苏 无锡 214122 
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中文摘要:
      以SBA-15为载体,采用共缩合-水热法制备Zr-SBA-15,通过化学接枝法引入磺酸基团进行改性,得到Zr-SBA-15-SO3H固体酸催化剂。采用X射线衍射、傅里叶红外光谱、N2吸附-脱附、热重分析、扫描电镜和透射电镜对催化剂的结构进行表征。以棕榈油和甲醇的酯交换反应为探针,测试Zr-SBA-15-SO3H的催化性能。结果表明:掺杂Zr的SBA-15磺酸官能化后得到的Zr-SBA-15-SO3H固体酸催化剂具有较强的酸性,且保持了SBA-15的原有形貌及介孔结构;在反应温度130 ℃、反应时间4 h、催化剂用量8%、醇油摩尔比35∶ 1的反应条件下,生物柴油收率超过93%,且制备的催化剂循环使用4次后仍具有较高的催化性能,生物柴油收率仍保持在75%以上。
英文摘要:
      Zr-SBA-15 was prepared by co-condensation-hydrothermal method with SBA-15 as supporter, then sulfonic acid group was introduced for modification by chemical grafting to obtain Zr-SBA-15-SO3H solid acid catalyst. The structure of the catalyst was characterized by XRD, FT-IR, N2 adsorption-desorption measurement, thermogravimetric analysis, SEM and TEM. The catalytic performance of Zr-SBA-15-SO3H was tested by transesterification of palm oil and methanol. The results showed that Zr doped SBA-15 had strong acidity after sulfonic acid functionalization and maintained the original morphology and mesoporous structure of SBA-15. The biodiesel yield exceeded 93% under the conditions of reaction temperature 130 ℃, reaction time 4 h, catalyst dosage 8% and molar ratio of methanol to palm oil 35∶ 1.The catalyst prepared still had higher catalytic activity with the biodiesel yield above 75% after four cycles of recycling.
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