Delbecq Frederic, Wang Yantao, Muralidhara Anitha, El Ouardi Karim, Marlair Guy, Len Christophe
Ecole Superieure de Chimie Organique et Minerale, Compiègne, France.
Sorbonne Universités, Universite de Technologie de Compiegne, Compiègne, France.
Front Chem. 2018 May 8;6:146. doi: 10.3389/fchem.2018.00146. eCollection 2018.
Biobased production of furfural has been known for decades. Nevertheless, bioeconomy and circular economy concepts is much more recent and has motivated a regain of interest of dedicated research to improve production modes and expand potential uses. Accordingly, this review paper aims essentially at outlining recent breakthroughs obtained in the field of furfural production from sugars and polysaccharides feedstocks. The review discusses advances obtained in major production pathways recently explored splitting in the following categories: (i) non-catalytic routes like use of critical solvents or hot water pretreatment, (ii) use of various homogeneous catalysts like mineral or organic acids, metal salts or ionic liquids, (iii) feedstock dehydration making use of various solid acid catalysts; (iv) feedstock dehydration making use of supported catalysts, (v) other heterogeneous catalytic routes. The paper also briefly overviews current understanding of furfural chemical synthesis and its underpinning mechanism as well as safety issues pertaining to the substance. Eventually, some remaining research topics are put in perspective for further optimization of biobased furfural production.
基于生物基生产糠醛已为人所知数十年。然而，生物经济和循环经济概念则是最近才出现的，这激发了人们重新关注专门研究，以改进生产方式并扩大潜在用途。因此，本综述论文主要旨在概述从糖和多糖原料生产糠醛领域最近取得的突破。该综述讨论了最近探索的主要生产途径中取得的进展，这些途径分为以下几类：（i）非催化路线，如使用临界溶剂或热水预处理；（ii）使用各种均相催化剂，如无机酸或有机酸、金属盐或离子液体；（iii）利用各种固体酸催化剂进行原料脱水；（iv）利用负载型催化剂进行原料脱水；（v）其他多相催化路线。本文还简要概述了目前对糠醛化学合成及其基础机制的理解以及与该物质相关的安全问题。最后，提出了一些剩余的研究课题，以便对基于生物基的糠醛生产进行进一步优化。
