Hydrolysis Kinetics of Cornstalk in Formic Acid Solution

Abstract:

Cornstalk, among the agricultural residues and other non-wood fiber, is a more promising source of lignocellulosic materials for bioethanol production. Pretreatment is an essential step in the enzymatic hydrolysis of biomass and subsequent production of bioethanol. Kinetic models can have practical applications for the optimization of the process and performance analysis, or economic estimations, so investigate the cornstalk hydrolysis kinetics is necessary. In this paper, effects of temperature and time on cornstalk hydrolysis in saturated formic acid with 4% hydrochloric acid solution reaction kinetics have been investigated. The results showed that the hydrolysis velocities of cornstalk were 0.021 h−1 at 60 °C, 0.0302 h−1 at 65 °C and 0.060 h−1 at 70 °C, the degradation velocities of glucose were 0.061 h−1 at 60 °C, 0.0845 h−1 at 65 °C, and 0.24 h−1 at 70 °C, the activation energy of cornstalk hydrolysis was 99.60 kJ/mol, and the activation energy of glucose degradation was130.94 kJ/mol.

• Periodical: Advanced Materials Research (Volumes 535-537)
• Pages: 2438-2441
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.535-537.2438
• Online since: June 2012
• Authors: Jun Ping Zhuang, Xue Ping Li
• Keywords: Corn Stalk, Fermentable Sugars, Formic Acid Solution, Hydrolysis Kinetics

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