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Position: Home > Articles > Enhanced anaerobic digestion of corn stover by thermo-chemical pretreatment. International Journal of Agricultural and Biological Engineering 2015,8 (1)

Enhanced anaerobic digestion of corn stover by thermo-chemical pretreatment.

作  者:
Fang Wang;Weisheng Niu;Andong Zhang;Weiming Y
单  位:
School of Agricultural and Food Engineering, Shandong University of Technology, Shandong Research Center of Engineering and Technology for Clean Energ;School of Agricultural and Food Engineering, Shandong University of Technology, Shandong Research Center of Engineering and Technology for Clean Energy;Engineering Academy, Shenyang Agricultural University
关键词:
corn stover;thermo-chemical pretreatment;anaerobic digestion;biogas production;enhanced;chemica
摘  要:
In order to solve the problem of lignocellulose degraded speedily and efficiently in anaerobic digestion, the thermo-chemical pretreatment was applied to enhance biogas production from corn stover. Corn stover was thermo-chemical pretreated with a fluidized bed pyrolysis reactor at 180℃, 200℃ and 220℃, respectively. Lignin degradations during pretreatment were 15.07%, 32.57% and 33.31%, respectively. The Scanning Electron Microscope (SEM)images and Fourier Transform Infrared Spectroscopy (FTIR) spectra confirm that the thermo-chemical pretreatment can change the structure of corn stover and make lignin content decrease. The thermo-chemical pretreated corn stover was digested using a 2-L fermentation reactor. Experimental results showed thermo-chemical pretreatment could improve biodegradability and enhance biogas production. The highest total biogas production was 23 319 mL for 20 d which was 10.0% higher than that of the untreated corn stover. DOI: 10.3965/j.ijabe.20150801.011 Citation: Wang F, Niu W S, Zhang A D, Yi W M. Enhanced anaerobic digestion of corn stover by thermo-chemical pretreatment. Int J Agric & Biol Eng, 2015; 8(1): 84-90.

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