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Catalytic transesterification of glycerol with dimethyl carbonate to glycerol carbonate with Co3O4 nanoparticle incorporated MCM-41 derived from rice husk
The Canadian Journal of Chemical Engineering ( IF 1.6 ) Pub Date : 2021-08-04 , DOI: 10.1002/cjce.24284 Shivali Arora 1 , Vijayalakshmi Gosu 1 , Verraboina Subbaramaiah 1 , Tian C. Zhang 2
The Canadian Journal of Chemical Engineering ( IF 1.6 ) Pub Date : 2021-08-04 , DOI: 10.1002/cjce.24284 Shivali Arora 1 , Vijayalakshmi Gosu 1 , Verraboina Subbaramaiah 1 , Tian C. Zhang 2
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A rice husk-derived MCM-41 catalyst has been synthesized, and active metal Co3O4 nanoparticles were incorporated. The synthesized MCM-41 derived from rice husk exhibited highly ordered p6mm hexagonal symmetry. The catalytic activity of the prepared catalyst was investigated for glycerol carbonate (GLc) synthesis through transesterification of glycerol (GLy) with dimethyl carbonate (DMC). Experimentally, it was found that 5 wt.% cobalt incorporated MCM-41 activated at 400°C showed a higher yield of GLc, 60.2%, due to its optimum basicity. Approximately, 98.7 ± 1.2% GLy conversion and 94.1 ± 0.7% GLc yield was achieved with the batch reactor at adjusted conditions: a molar ratio of DMC-to-glycerol = 3, catalyst dosage = 6 wt.% (based on glycerol mass), reaction temperature = 90°C, and reaction time = 2 h. The transesterification reaction kinetics were also studied using the ODE 15s tool in MATLAB. The catalyst's activation energy was calculated as 58.2 ± 2.4 kJ/mol.
中文翻译：
丙三醇与碳酸二甲酯的催化酯交换反应生成含有 Co3O4 纳米颗粒的丙三醇碳酸酯，其中含有来自稻壳的 MCM-41
合成了稻壳衍生的MCM-41催化剂，活性金属Co 3 O 4纳米颗粒被掺入。来源于稻壳的合成MCM-41表现出高度有序的p6mm六角对称性。通过甘油（GLy）与碳酸二甲酯（DMC）的酯交换反应，研究了制备的催化剂对甘油碳酸酯（GLc）合成的催化活性。实验发现，在 400°C 活化的 5 wt.% 钴结合的 MCM-41 显示出更高的 GLc 产率，60.2%，这是由于其最佳碱度。在调节条件下使用间歇式反应器实现了大约 98.7 ± 1.2% 的 GLy 转化率和 94.1 ± 0.7% 的 GLc 产率：DMC 与甘油的摩尔比 = 3，催化剂用量 = 6 wt.%（基于甘油质量） , 反应温度 = 90°C, 反应时间 = 2 h。还使用 MATLAB 中的 ODE 15s 工具研究了酯交换反应动力学。催化剂'
更新日期：2021-08-04
中文翻译：
丙三醇与碳酸二甲酯的催化酯交换反应生成含有 Co3O4 纳米颗粒的丙三醇碳酸酯，其中含有来自稻壳的 MCM-41
合成了稻壳衍生的MCM-41催化剂，活性金属Co 3 O 4纳米颗粒被掺入。来源于稻壳的合成MCM-41表现出高度有序的p6mm六角对称性。通过甘油（GLy）与碳酸二甲酯（DMC）的酯交换反应，研究了制备的催化剂对甘油碳酸酯（GLc）合成的催化活性。实验发现，在 400°C 活化的 5 wt.% 钴结合的 MCM-41 显示出更高的 GLc 产率，60.2%，这是由于其最佳碱度。在调节条件下使用间歇式反应器实现了大约 98.7 ± 1.2% 的 GLy 转化率和 94.1 ± 0.7% 的 GLc 产率：DMC 与甘油的摩尔比 = 3，催化剂用量 = 6 wt.%（基于甘油质量） , 反应温度 = 90°C, 反应时间 = 2 h。还使用 MATLAB 中的 ODE 15s 工具研究了酯交换反应动力学。催化剂'
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