Auto-Catalytic Ethanol Pulping of Corncob Acid Hydrolyzed Residua

Abstract:

The effects of ethanol concentration, reaction time, solid-liquid ratio and temperature on auto-catalytic ethanol pulping reaction of corncob acid hydrolyzed residua were investigated. The relationships of those four factors and pulping selectivity(Y/K ratio) were also discussed. The optimal pulping conditions were determined, which were ethanol concentration 55%, reaction time 2.0h, solid-liquid ratio 1:10, temperature 175°C. The temperature has the most influential effect. Structures of corncob acid hydrolyzed residua and dry pulp were observed by electronic microscope. The process of pulping reaction and the delignification were also verified.

• Periodical: Advanced Materials Research (Volumes 560-561)
• Pages: 428-433
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.560-561.428
• Online since: August 2012
• Authors: Jie Li, Lian Xiong, Hai Rong Zhang, Fei Ding, Xin De Chen
• Keywords: Autocatalysis, Corn Cob, Ethanol, Lignin, Pulping

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