Synthesis of 2-methylpyrazine from cyclocondensation of ethylene diamine and propylene glycol over promoted copper catalyst |
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| Authors: | Fang Li Jing Wei Chu Yuan Yuan Zhang Ye Qiang Chen Shi Zhong Luo |
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| Institution: | a Department of Chemical Engineering, Sichuan University, Chengdu 610065, China;b College of Materials Science and Chemical Engineering, Zhejiang University, Hangzhou 310027, China |
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| Abstract: | The 2-methylpyrazine was synthesized by catalytic reaction of ethylene diamine and propylene glycol at 380℃. The alumina supported copper catalysts with promoter were prepared by impregnation method, characterized by ICP-AES, BET and TPR. The results demonstrated that the dehydrogenation was improved by addition of chromium promoter. The selectivity of 2-methylpyrazine reached 84.75%, while the conversions of reactants were also enhanced. |
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| Keywords: | 2-Methylpyrazine Copper catalyst Dehydrogenation Ethylene diamine Propylene glycol Promoter |
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