Kinetics of the Xylo-oligosaccharides Preparation Through the Propionic Acid Hydrolysis Method

  • Xuehui Li, Long Tian, Yi Wang, Xinyu Luo, Xinxin Yu, Tianyue Zhu, Ying Wang

Abstract

This paper studied the effect of reaction time, reaction temperature and propionic acid concentration on the preparation of xylo-oligosaccharides through wheat straw. When wheat straw was used to prepare xylo-oligosaccharides through acidolysis, the kinetic model was first established and then tested through the experiment. The optimum technical parameters for preparing xylo-oligosaccharides were as follows:reaction temperature 80°C, propionic acid concentration 850 g/L, and reaction time 120 min. Within the experiment scope, the apparent activation energy of the prepared xylo-oligosaccharides throughout the acidolysis of the wheat straw was 30.381 kJ/mol. The relationship of reaction rate constant k1, reaction temperatureT, propionic acid concentrationCwas as follows: lnk1= 6.5034+0.0393 lnC-3.654/T.

Published
2021-06-11
How to Cite
Xuehui Li, Long Tian, Yi Wang, Xinyu Luo, Xinxin Yu, Tianyue Zhu, Ying Wang. (2021). Kinetics of the Xylo-oligosaccharides Preparation Through the Propionic Acid Hydrolysis Method. Design Engineering, 2236 - 2246. Retrieved from http://www.thedesignengineering.com/index.php/DE/article/view/1965
Section
Articles