Separation process study of liquid phase catalytic exchange reaction based on the Pt/C/PTFE catalysts

doi:10.1016/j.cjche.2019.01.019

中国化学工程学报 ›› 2019, Vol. 27 ›› Issue (8): 1837-1845.DOI: 10.1016/j.cjche.2019.01.019

• Separation Science and Engineering • 上一篇下一篇

Separation process study of liquid phase catalytic exchange reaction based on the Pt/C/PTFE catalysts

Peilong Li, Li Guo, Renjin Xiong, Junhong Luo, Ming Wen, Yong Yao, Zhi Zhang, Jiangfeng Song, Yan Shi, Tao Tang

Institute of Materials, China Academy of Engineering Physics, Mianyang 621907, China

收稿日期:2018-11-16 修回日期:2018-12-30 出版日期:2019-08-28 发布日期:2019-11-16
通讯作者: Peilong Li
基金资助:
Supported by the National Key Research and Development Program of China (2017YFE0300302), the National Natural Science Foundation of China (21503199, 21406212), Key Project of Applied & Basic Research of Sichuan Province (18YYJC1594).

Separation process study of liquid phase catalytic exchange reaction based on the Pt/C/PTFE catalysts

Peilong Li, Li Guo, Renjin Xiong, Junhong Luo, Ming Wen, Yong Yao, Zhi Zhang, Jiangfeng Song, Yan Shi, Tao Tang

Institute of Materials, China Academy of Engineering Physics, Mianyang 621907, China

Received:2018-11-16 Revised:2018-12-30 Online:2019-08-28 Published:2019-11-16
Contact: Peilong Li
Supported by:
Supported by the National Key Research and Development Program of China (2017YFE0300302), the National Natural Science Foundation of China (21503199, 21406212), Key Project of Applied & Basic Research of Sichuan Province (18YYJC1594).

摘要/Abstract

摘要： The liquid phase catalytic exchange (LPCE) reaction is an effective process for heavy water detritiation and production of deuterium-depleted potable water. In the current study, hydrophobic carbon-supported platinum catalysts (Pt/C/PTFE) with high efficiency as reported previously for LPCE were prepared and comprehensive performance evaluation method is applied to evaluate the separation behaviors of LPCE systematically. Experimental results indicate that the optimum reaction temperature of 60-80℃ and the molar feed ratio G/L of 1.5-2.5 would lead to higher separation efficiencies. As to the packing method, a random packing mode with a packing ratio of hydrophobic catalysts 0.25 is recommended. In addition, thermodynamic analysis corresponds well with experimental results under lower temperature and G/L, while the suppression of kinetic factors should not be neglected when T > 80℃ and G/L > 1.5.

关键词: Liquid phase catalytic exchange (LPCE), Hydrophobic carbon-supported platinum, catalysts, Separation behaviors, Optimal operating condition, Water detritiation

Abstract: The liquid phase catalytic exchange (LPCE) reaction is an effective process for heavy water detritiation and production of deuterium-depleted potable water. In the current study, hydrophobic carbon-supported platinum catalysts (Pt/C/PTFE) with high efficiency as reported previously for LPCE were prepared and comprehensive performance evaluation method is applied to evaluate the separation behaviors of LPCE systematically. Experimental results indicate that the optimum reaction temperature of 60-80℃ and the molar feed ratio G/L of 1.5-2.5 would lead to higher separation efficiencies. As to the packing method, a random packing mode with a packing ratio of hydrophobic catalysts 0.25 is recommended. In addition, thermodynamic analysis corresponds well with experimental results under lower temperature and G/L, while the suppression of kinetic factors should not be neglected when T > 80℃ and G/L > 1.5.

Key words: Liquid phase catalytic exchange (LPCE), Hydrophobic carbon-supported platinum, catalysts, Separation behaviors, Optimal operating condition, Water detritiation

Peilong Li, Li Guo, Renjin Xiong, Junhong Luo, Ming Wen, Yong Yao, Zhi Zhang, Jiangfeng Song, Yan Shi, Tao Tang. Separation process study of liquid phase catalytic exchange reaction based on the Pt/C/PTFE catalysts[J]. 中国化学工程学报, 2019, 27(8): 1837-1845.

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Separation process study of liquid phase catalytic exchange reaction based on the Pt/C/PTFE catalysts

Separation process study of liquid phase catalytic exchange reaction based on the Pt/C/PTFE catalysts

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