Bi-Pt催化剂在H-mordenite载体上的甘油选择性氧化

周洁; 赵宁; 肖福魁; 魏伟; 孙予罕

Bi-Pt催化剂在H-mordenite载体上的甘油选择性氧化

周洁^1,2,
赵宁¹,
肖福魁¹,
魏伟^1,,
孙予罕^1,3

1.
中国科学院山西煤炭化学研究所, 山西太原 030001;
2.
中国科学院研究生院, 北京 100049;
3.
中国科学院上海高等研究院低碳能源转化中心, 上海 201203

详细信息

通讯作者:
魏伟,Tel:0351-4049612,E-mail:weiwei@sxicc.ac.cn

中图分类号: TQ032.41
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- 被引次数: 0
出版历程
- 收稿日期: 2012-03-31
- 修回日期: 2012-06-01
- 刊出日期: 2012-11-30

Selective oxidation of glycerol over Bi-Pt catalyst on H-mordenite

1.
Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, China;
2.
Graduate University of Chinese Academy of Sciences, Beijing 100049, China;
3.
Low Carbon Energy Conversion Center, Shanghai Advanced Research Institute of Chinese Academy of Sciences, Shanghai 201203, China

摘要

摘要: 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353 K,反应时间2~4 h,空气流量20 mL/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%。
- 甘油 /
- 选择性氧化 /
- Bi-Pt/H-mordenite /
- 二羟基丙酮
Abstract: Selective oxidation of glycerol (GLY) to dihydroxyacetone (DHA) was studied over Bi-Pt/H-mordenite catalyst. The results indicated that the surface area has little effect on the performance of the supported catalysts. H-mordenite as support inhibits the cracking of GLY and thus promotes the selectivity to DHA. Protic solvents such as ethanol and water favor the formation of DNA from GLY. Over the Bi-Pt/H-mordenite catalyst of optimum composition (1% Bi and 5% Pt by weight) and under the optimum reaction conditions (353 K, reaction time of 2~4 h, air flow rate of 20 mL/min, and GLY concentration of 10%), the conversion of GLY and selectivity to DHA reach 70.6% and 61.0%, respectively.
- glycerol /
- selective oxidation /
- Bi-Pt/H-mordenite /
- dihydroxyacetone

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