Welcome to Biomass Chemical Engineering,

Biomass Chemical Engineering ›› 2023, Vol. 57 ›› Issue (5): 61-70.doi: 10.3969/j.issn.1673-5854.2023.05.008

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Progress on Platform Chemicals Synthesis of Levulinates

Hongyan BI, Tianya LI, Zhibo WANG, Qidong WANG, Hongyun CAO, Qinqin ZHANG()   

  1. College of Marine Science and Biological Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
  • Received:2022-05-25 Online:2023-09-30 Published:2023-10-07
  • Contact: Qinqin ZHANG E-mail:qqzhang@qust.edu.cn

Abstract:

Biomass is considered to be the richest renewable resource in the world, and its high-value utilization would promote the development of green energy. Biomass can be efficiently converted into the bio-based platform compounds levulinates, and further prepared into high value-added chemicals. In this paper, the latest research progress on the preparation of levulinates via the methods of traditional levulinic acid esterification, direct catalytic alcoholysis of biomass and furfuryl alcoholysis were introduced in detail. It was also pointed out that the performance of the catalyst, the reaction raw material, the reaction molar ratio, the reaction time and temperature were all important parameters affecting the reaction. The latest research progress on the preparation of levulinates using different catalytic systems, such as liquid acid catalysts, mixed acid catalysts, solid acid catalyst and metal salt catalysts, was reviewed in detail. The advantages and disadvantages of the three preparation methods were summarized and compared. Based on the problems existed in the current conversion methods, such as the selection and pretreatment of raw materials, complex reaction process and difficult control of by-products, high catalyst cost, low catalytic efficiency, corrosion of equipment and difficult of recovery, the future research direction was prospected.

Key words: biomass, levulinates, catalyst, levulinic acid esterification, direct catalytic alcoholysis, furfuryl alcoholysis

CLC Number: