4.7 Article

Kinetic study of levulinic acid production from corn stalk at mild temperature using FeCl3 as catalyst

期刊

FUEL
卷 187, 期 -, 页码 261-267

出版社

ELSEVIER SCI LTD
DOI: 10.1016/j.fuel.2016.09.019

关键词

Corn stalk; Levulinic acid; FeCl3; Kinetics; Mild temperature

资金

  1. National High Technology Research and Development Program of China [2014BAL02B04]
  2. International Sci-Tec Cooperation Program of China [SQ2013ZOA100002]
  3. Seed Foundation of Tianjin University

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In this study, FeCl3 was proven to be an efficient catalyst for glucan hydrolysis to produce levulinic acid (LA) with corn stalk as substrate. The use of a well evaluated and detailed model to study the kinetics, and the use of corn stalk instead of cellulose as raw material to produce LA, make our work original. Through the experiment, a maximum LA concentration of 16.14 gfi. was obtained under 180 degrees C with 0.5 mol/L FeCl3 and that equates to an LA yield of 48.89%. A mechanistic kinetic model was developed to predict the yields of glucose, HMF and LA that are consistent with the experimental results. The analysis of related kinetic parameters and the response surface plots of LA yield with respect to temperature and catalyst concentration helped to provide a deep insight into the whole reaction process. (C) 2016 Elsevier Ltd. All rights reserved.

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