Efficient production of lactic acid from biomass-derived carbohydrates under synergistic effects of indium and tin in In–Sn-Beta zeolites

Meng Xia; Wenjie Dong; Zheng Shen; Shaoze Xiao; Wenbo Chen; Minyan Gu; Yalei Zhang

doi:10.1039/D0SE00798F

Efficient production of lactic acid from biomass-derived carbohydrates under synergistic effects of indium and tin in In–Sn-Beta zeolites†

Meng Xia,

‡^a Wenjie Dong,‡^b Zheng Shen,

*^ac Shaoze Xiao,^a Wenbo Chen,^c Minyan Gu^a and Yalei Zhang

*^a

Author affiliations

* Corresponding authors

^a State Key Laboratory of Pollution Control and Resources Reuse, Key Laboratory of Yangtze River Water Environment of Ministry of Education, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China
E-mail: shenzheng@tongji.edu.cn, zhangyalei@tongji.edu.cn

^b College of Quality and Safety Engineering, China Jiliang University, Hangzhou 310018, China

^c National Engineering Research Center of Protected Agriculture, Tongji University, Shanghai 200092, China

Abstract

In the catalytic transformation of biomass into valuable chemicals, it is extremely important to inhibit undesirable reactions to increase the yield of target products. In this study, the introduction of indium and tin into Beta zeolites promoted the transformation of glucose into lactic acid with a high yield of 53%. Selective experiments and a developed kinetic model confirmed the sensitivity of the main reaction rate to the action of tin, including those of the isomerization and retro-aldol condensation reactions, and shielding of the side reactions by indium. An in-depth analysis of the catalyst acidity showed that weak Lewis acidity in the indium and tin species promoted the main reaction steps, whereas the decreased amount of strong Lewis acidity by introduction of indium into the Sn-Beta catalyst suppressed the side reactions. The coupling of multifunctional active sites provides a new strategy for addressing challenges in commercial lactic acid production.

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DOI: https://doi.org/10.1039/D0SE00798F
Article type: Paper
Submitted: 26 May 2020
Accepted: 20 Aug 2020
First published: 08 Sep 2020

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Sustainable Energy Fuels, 2020,4, 5327-5338

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Efficient production of lactic acid from biomass-derived carbohydrates under synergistic effects of indium and tin in In–Sn-Beta zeolites

M. Xia, W. Dong, Z. Shen, S. Xiao, W. Chen, M. Gu and Y. Zhang, Sustainable Energy Fuels, 2020, 4, 5327 DOI: 10.1039/D0SE00798F

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Sustainable Energy & Fuels

Efficient production of lactic acid from biomass-derived carbohydrates under synergistic effects of indium and tin in In–Sn-Beta zeolites†

Abstract

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Efficient production of lactic acid from biomass-derived carbohydrates under synergistic effects of indium and tin in In–Sn-Beta zeolites

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