Effect of base catalysts on hydrothermal conversion of glycerin

摘要：

Hydrothermal treatment of glycerin was carried out at 300 ℃ by using eight base catalysts, including hydroxides of alkali metals, alkaline-earth metals and aluminum. All selected catalysts promoted the conversion of glycerin into lactic acid, except for Al(OH)3. The alkali-metal hydroxides were found to be more effective than alkaline-earth-metal hydroxides on hydrothermal conversion of glycerin. In the case of NaOH or KOH, a lactic acid yield of approximate 90％ can be approached. Moreover, KOH was superior to NaOH on promoting the hydrothermal conversion of glycerin. Ba(OH)2 and Sr(OH)2 was found to convert glycerin further into formic and acetic acids. A decomposition mechanism of lactic acid with Ba(OH)2 was proposed.

关键词： Glycerin Lactic acid Hydrothermal reaction Base

作者: Zheng Shen Fangming Jin Yalei Zhang Ashushi Kishita Kazuyuki Tohji

作者单位: College of Environmental Science and Engineering Tongji University Shanghai,China Graduate School of Environmental Studies Tohoku University Sendai,Japan

会议类型: 国际会议

会议名称: The 3rd International Conference on Bioinformatics and Biomedical Engineering(iCBBE 2009)(第三届生物信息与生物医学工程国际会议)

会议地点: 北京

会议语种:英文

页码: 1-4

在线出版日期: 2009-06-11（万方平台首次上网日期，不代表论文的发表时间）