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OALib Journal期刊
ISSN: 2333-9721
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bi-pt催化剂在h-mordenite载体上的甘油选择性氧化
, PP. 1323-1327
Keywords: 甘油,选择性氧化,bi-pt/h-mordenite,二羟基丙酮
Abstract:
？以bi-pt/h-mordenite为催化剂,对甘油(gly,glycerol)选择性氧化制备二羟基丙酮(dha,dihydroxyacetone)进行了研究。采用bet对催化剂进行表征,结果表明,催化剂的比表面积对催化剂的反应性能影响较小。甘油的裂解是主要的副反应,而h-mordenite可以抑制甘油的裂解,提高dha的选择性。最佳反应条件为温度353k,反应时间2~4h,空气流量20ml/min,甘油(水-乙醇1:1混合溶液的质量分数为10%),催化剂为1%bi-5%pt/h-mordenite时,甘油的转化率为70.6%,dha的选择性为61.0%。
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