Effect of pretreatment on physicochemicla characteristics changes and biogas production of Pennisetum hybrid

The effect of microwave,sodium hydroxide (NaOH) and thermal pretreatment on biogas production of Pennisetum hybrid was studied under mesophilic conditions.The changes on physicochemical characteristics of pretreated samples were also investigated by conducting composition and FTIR analysis.The analysis of composition showed that hemicellulose and lignin can be selectively removed with NaOH pretreatment.The microwave and thermal pretreatment had no significant effect on the chemical composition of biomass.The slight increase in specific biogas yield was obtained from the NaOH (8%) and microwave (6%) treated Pennisetum hybrid.The average methane content varied from 46% to 57 %.The specific methane yields of 202.86±22.81 mL/g VSadded(34.39% increased) and 194.05±7.14 mL/g VSadded(28.56% increased) were obtained for NaOH and microwave treatedPennisetum hybrid,respectively.The results showed that NaOH and microwave pretreatment had positive impact on the specificmethane yields of Pennisetum hybrid.
Anaerobic fermentation Biogas production Pennisetum hybrid Pretreatment
Lianhua Li Yongming Sun Xiaoying Kong Zhenhong Yuan Zhen Feng Wang Yao Yang Gaixiu
Guangzhou Institute of Energy Conversion,Key Laboratory of Renewable Energy and Gas Hydrate,Chinese Academy of Sciences,Guangzhou 510640,China
国内会议
南宁
英文
157-167
2014-10-29(万方平台首次上网日期,不代表论文的发表时间)