Research progress in preparation and kinetics of γ-valerolactone synthesis from hemicellulose and its derivatives

doi:10.16085/j.issn.1000-6613.2021-1632

Abstract

Abstract:

Hemicellulose is one of the three main components of wood biomass resources, which can be converted into high value-added compounds such as furfural (FAL), furfuryl alcohol (FOL), levulinic acid (LA), γ?-valerolacton (GVL) by chemical or biological methods. This route can realize the high-value utilization of carbon containing renewable resources, and is of great significance for the development of renewable bioenergy. In this paper, the domestic and international research progress of direct conversion of hemicellulose, FAL and FOL to GVL are reviewed from the aspects of catalysts, hydrogen sources and solvents. Moreover, the typical kinetic models of the processes of xylose to FAL and FAL to GVL are summarized. Bifunctional acid catalysts with adjustable Br?nsted/Lewis acid sites, such as metal modified molecular sieves, are highly efficient catalysts for the transfer hydrogenation of hemicellulose and its derivatives to GVL, and the strategy and mechanism of acid site regulation are the key issues. The development of multi-metal coordination or acid-base coordination catalysts is the direction of catalytic system innovation.

Key words: biomass, hemicellulose, furfural, γ-valerolacton, hydrogenation, solvents, reaction kinetics

摘要：

半纤维素是木质生物质资源的三大主要组分之一，经化学、生物的方法转化为糠醛（FAL）、糠醇（FOL）、乙酰丙酸（LA）和γ-戊内酯（GVL）等高附加值化合物可实现含碳可再生资源高值化利用，对发展可再生生物能源具有重要意义。本文从催化剂、氢源和溶剂的角度综述了国内外半纤维素、FAL和FOL直接转化为GVL的研究进展，归纳了串联反应中木糖合成FAL及FAL合成GVL的典型动力学模型。Br?nsted/Lewis酸位点可调的双功能酸催化剂如金属改性的分子筛，是催化半纤维素及其衍生物转移加氢合成GVL的高效催化剂，文中指出酸性位点调控的策略和机制是催化剂研究的关键问题；开发多金属协同、酸碱协同的多功能催化剂是创新催化体系的方向。

关键词: 生物质, 半纤维素, 糠醛, γ-戊内酯, 加氢, 溶剂, 反应动力学

CLC Number:

O643.3

ZHUANG Yuting, WANG Jianhua, XIANG Zhiyan, ZHAO Juan, XU Qiong, LIU Xianxiang, YIN Dulin. Research progress in preparation and kinetics of γ-valerolactone synthesis from hemicellulose and its derivatives[J]. Chemical Industry and Engineering Progress, 2022, 41(7): 3519-3533.

庄雨婷, 王建华, 向智艳, 赵娟, 徐琼, 刘贤响, 尹笃林. 半纤维素及其衍生物转化为γ-戊内酯及其动力学研究进展[J]. 化工进展, 2022, 41(7): 3519-3533.

Figures/Tables 6

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