Cu/H–ZSM-5: A highly active and selective catalyst for the production of γ-valerolactone from biomass-derived levulinic acid

IF 1.7 4区化学 Q3 CHEMISTRY, MULTIDISCIPLINARY

Journal of Chemical Sciences Pub Date : 2024-11-08 DOI:10.1007/s12039-024-02317-y

Vijayanand Perupogu, Suresh Babu Gadamani, Rajendiran Rajesh, Putra Kumar Balla, Shyamala Pulipaka, Srinivasa Rao Pinapati, Lingaiah Nakka

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Abstract

Investigating alternative energy sources is now crucial since the topic of climate action is growing in significance. One of the most promising renewable biomass feedstocks is levulinic acid (LA), which can be converted via an intermediary called γ-valerolactone (GVL) into value-added products. This study examined the hydrogenation of levulinic acid to γ-valerolactone using various copper-supported H–ZSM-5 catalysts with different Cu loadings (2–30 wt%) that were synthesized using a simple impregnation technique. The synthesized catalyst's morphological and chemical structure was examined using a variety of techniques, including XRD, N₂ adsorption-desorption, TPR, TPD–NH₃, and N₂O titration. Overall, at 265°C and 30 hours of time on stream (TOS), 5 Cu/H–ZSM-5 showed the best conversion (87%) and selectivity (83%).

Graphical Abstract

One of the most promising renewable biomass feedstocks is levulinic acid (LA), which can be converted via an intermediary called γ-valerolactone (GVL) into value-added products. This study examined the hydrogenation of levulinic acid to γ-valerolactone using copper-supported H–ZSM-5 catalysts with different Cu loadings.

Abstract Image

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Cu/H-ZSM-5：一种高活性、高选择性催化剂，用于从生物质衍生的白桦脂酸中生产γ-戊内酯

由于气候行动这一主题日益重要，研究替代能源现在变得至关重要。最有前景的可再生生物质原料之一是乙酰丙酸（LA），它可以通过一种名为γ-戊内酯（GVL）的中间体转化为高附加值产品。本研究采用简单的浸渍技术合成了不同铜负载量（2-30 wt%）的铜支撑 H-ZSM-5 催化剂，考察了将乙酰丙酸氢化为 γ-戊内酯的过程。采用 XRD、N2 吸附-解吸、TPR、TPD-NH3 和 N2O 滴定等多种技术对合成催化剂的形态和化学结构进行了检测。总的来说，在 265°C 和 30 小时的流动时间（TOS）条件下，5 Cu/H-ZSM-5 的转化率（87%）和选择性（83%）最好。图解摘要最有前景的可再生生物质原料之一是乙酰丙酸（LA），它可以通过一种名为γ-戊内酯（GVL）的中间体转化为高附加值产品。本研究考察了使用不同铜负载的铜支撑 H-ZSM-5 催化剂将乙酰丙酸氢化为 γ-戊内酯的过程。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of Chemical Sciences CHEMISTRY, MULTIDISCIPLINARY-

CiteScore

3.10

自引率

5.90%

发文量

107

审稿时长

1 months

期刊介绍： Journal of Chemical Sciences is a monthly journal published by the Indian Academy of Sciences. It formed part of the original Proceedings of the Indian Academy of Sciences – Part A, started by the Nobel Laureate Prof C V Raman in 1934, that was split in 1978 into three separate journals. It was renamed as Journal of Chemical Sciences in 2004. The journal publishes original research articles and rapid communications, covering all areas of chemical sciences. A significant feature of the journal is its special issues, brought out from time to time, devoted to conference symposia/proceedings in frontier areas of the subject, held not only in India but also in other countries.