Enhanced anaerobic digestion of corn stover by thermo-chemical pretreatment
Keywords:
biogas production, corn stover, anaerobic digestion, fast pyrolysis, thermo-chemical, pretreatmentAbstract
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.References
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[2] Haibo Z, Ja H K, Z. Zhang C, Heather M, B, Bruce W, A, Johnathan E. H.. Studying cellulose fiber structure by SEM, XRD, NMR and acid hydrolysis. Carbohydrate Polymers, 2007; 68(2): 235–241.
[3] Hendriks A T W M, Zeeman G. Pretreatment to enhance the digestibility of lignocellulosic biomass. Bioresource Technology, 2009; 100(1): 10–18.
[4] Biswas A K, Yang W H, Blasiak W. Steam pretreatment of Salix to upgrade biomass fuel for wood pellet production. Fuel Processing Technology, 2011; 92(9): 1711–1717.
[5] Cui Q J, Zhu H G, Wang D Y, Xiong F L. Effect on biogas yield of straw with twin-screw extruder physical-chemical combination pretreatment. Transactions of the CSAE, 2011; 27(1): 280–285. (in Chinese with English abstract)
[6] Zhong W H, Zhang Z Z, Qiao W, Fu P C, Liu M. Comparison of chemical and biological pretreatment of corn straw for biogas production by anaerobic digestion. Renewable Energy, 2011; 36(6): 1875–1879.
[7] Jiao X X, Jin H Y, Wang M M. Research progress of straw pretreatment for anaerobic fermentation producing biogas in China. China Biogas, 2011; 29 (1): 29–33. (in Chinese with English abstract)
[8] Yang H P, Yan R, Chen H P, Lee D H, Zheng C Z.. Characteristics of hemicellulose, cellulose and lignin pyrolysis. Fuel, 2007; 86(12): 1781–1788.
[9] Wu Y M, Zhao Z L, Li H B, He F. Low temperature pyrolysis characteristics of major components of biomass. Journal of Fuel Chemistry and Technology, 2009; 37(4): 427–432.
[10] Li L H, Ma L L, Yuan Z H. Study on anaerobic digestion of straw stalk. Journal of Agro— Environment Science, 2007, 26(1): 335–338.
[11] Zheng M X, Li X J, Li L Q. Enhancing anaerobic biogasfication of corn stover through wet state NaOH pretreatment. Bioresource Technolygy, 2009; 100: 5140– 5145.
[12] Zhang R H, Zhang Z Q. Biogasifieation of rice straw with an anaerobic-phased solids digester system. Bioresource Technology, 1999; 68(3): 235–245.
[13] Goering H K, Van Soest P S. Forage Fiber Analysis USDA-ARS Agric. Handbook. Washington: Gov. Print, 1971, 387–598
[14] Yao M Y, Liu X F, Yuan Y X. Isolation of a fungus with selective delignification and its degradation of corn stalk. Chinese J Appl Environ Biol., 2009; 15(3): 427–431. (in Chinese with English abstract)
[15] Chen H Z. Biotechnology of Lignocellulose. Beijing: Chemical Industry Press, 2005.
[16] Miao Y W, Zhang G L. Study about characteristics of FTIR and XRD for corn stalk surface with KH-560 treatment. Energy Procedia, 2012; 16: 1135–1140.
[17] Yang X W, Ma F Y, Zeng Y L, Yu H, Xu C, Zhang X . Structure alteration of lignin in corn stover degraded by white-rot fungus Irpex lacteus CD2. Intl. Biodeterioration & Biodegradation, 2010; 64(2): 119–123.
[18] Du F Y, Zhang X Y, Wang H X, Yin Y L. The Law of lignocellullose following decay by white-rot fungi. Journal of Cellulose Science and Technology, 2005; 13(1): 17–25.
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Published
2015-02-28
How to Cite
Fang, W., Weisheng, N., Andong, Z., & Weiming, Y. (2015). Enhanced anaerobic digestion of corn stover by thermo-chemical pretreatment. International Journal of Agricultural and Biological Engineering, 8(1), 84–90. Retrieved from https://ijabe.migration.pkpps03.publicknowledgeproject.org/index.php/ijabe/article/view/1483
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Renewable Energy and Material Systems
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