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碱液预处理玉米秸秆的条件优化及添加剂的选择

Keywords: 碱预处理,玉米秸秆,响应曲面法,优化,添加剂

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Abstract:

利用稀NaOH溶液预处理玉米秸秆,以去除木质素,减少半纤维素、纤维素的损失为目的,采用响应曲面法对预处理条件进行优化,得到的最佳预处理条件为:NaOH溶液浓度0.77%(w/w),预处理时间16h,温度45.6℃。并且,进一步研究了不同添加剂(聚乙二醇、吐温-80和尿素)与NaOH溶液协同作用下秸秆中木质素的去除效果,结果表明尿素与NaOH的混合溶液对木质素去除效果最显著。秸秆在45.6℃,0.77%NaOH和0.2%尿素混合溶液中浸泡16h后,纤维素回收率为86.33%,半纤维素回收率为69.89%,木质素去除率为64.93%;与原秸秆相比,纤维素含量提高了31.70%,半纤维素含量提高了6.62%,木质素含量减少了46.48%。

References

[1]  崔凤杰, 李向菲, 周宇光, 等.NaOH预处理对玉米秸秆固态厌氧消化的影响.环境工程学报, 2013, 7(5):1919-1924 Cui F.J., Li X.F., Zhou Y.G., et al.Enhancing soildstate anaerobic digestion of corn stover by using alkaline pretreatment.Chinese Journal of Environmental Engineering, 2013, 7(5):1919-1924(in Chinese)
[2]  蒋建国, 赵振振, 杜雪娟, 等.秸秆高固体厌氧消化预处理实验研究.环境科学, 2007, 28(4):876-890 Jiang J.G., Zhao Z.Z., Du X.J., et al.Experimental investigation of the straw pretreatment to enhance its high solid anaerobic digestion.Environmental Science, 2007, 28(4):876-890(in Chinese)
[3]  Hendriks A.T.W.M., Zeeman G.Pretreatments to enh-ance the digestibility of lignocellulosic biomass.Bioresource Technology, 2009, 100(1):10-18
[4]  Sun Y., Cheng J.Hydrolysis of lignocellulosic materials for ethanol production:A review.Bioresource Technolgy, 2002, 83(1):1-11
[5]  Alvira P., Tomás-Pejó E., Ballesteros M., et al.Pretreatment technologies for an efficient bioethanol production process based on enzymatic hydrolysis:A review.Bioresource Technology, 2010, 101(13):4851-4861
[6]  Zhang R., Lu X.B., Liu Y., et al.Kinetic study of d-ilute nitric acid treatment of corn stover at relatively high temperature.Chemical Engineering Technology, 2011, 34(3):409-414
[7]  Viola E., Cardinale M., Santarcangelo R., et al.Ethanol from eel grass via steam explosion and enzymetichydrolysis.Biomass Bioenergy, 2008, 32(7):613-618
[8]  秦伟军, 陈叶福, 赵换英, 等.玉米芯碱液预处理条件优化.农业工程学报, 2010, 26(4):248-253 Qin W.J., Chen Y.F., Zhao H.Y., et al.Optimization of pretreatment conditions for corn cob with alkali liquor.Transaction of the Chinese Society of Agricultural Engineering, 2010, 26(4):248-253(in Chinese)
[9]  王洋, 王振斌, 王世清, 等.超声波辅助温和碱/氧化法进行小麦秸秆预处理的方法.江苏农业学报, 2010, 26(2):308-314 Wang Y., Wang Z.B., Wang S.Q., et al.Ultrasound assisted mild alkaline/oxidative pretreatment of wheat straw.Jiangshu Journal of Agricultural Science, 2010, 26(2):308-314(in Chinese)
[10]  王佳堃, 朱素丽, 刘建新, 等.预处理改变稻草亚细胞结构的化学基础.浙江大学学报(理学版), 2006, 33(4):424-428 Wang J.K., Zhu S.L., Liu J.X., et al.Study on the chemical basis of chemical pretreatment to change the ultrastructure of rice straw.Journal of Zhejiang University (Science Edition), 2006, 33(4):424-428 (in Chinese)
[11]  闫贵龙, 孟庆翔, 曹春梅.氢氧化钙与2% 尿素复合处理提高小麦秸营养价值的研究.动物生产, 2007, 43(9):51-53 Yan G.L., Meng Q.X., Cao C.M.Effecs of combination of calcium hydroxide and 2% urea on nutritional value of wheat straw.Animal Production, 2007, 43(9):51-53(in Chinese)
[12]  Qing Q., Yang B., Wyman C., et al.Impact of surfactants on pretreatment of corn stover.Bioresource Technology, 2010, 101(15):5941-5951
[13]  马兴元, 马君, 刘琪.小麦秸秆的氨化厌氧发酵工艺及影响因素研究.农业环境科学学报, 2012, 31(11):2265-2271 Ma X.Y., Ma J., Liu Q.Process and influence factors of ammoniation anaerobic fermentation with the wheat straw.Journal of Agro-Environment Science, 2012, 31(11):2265-2271(in Chinese)
[14]  韩颖, 翟华敏.机械浆碱性过氧化氢漂白的研究进展.中国造纸, 2008, 27(1):50-55 Han Y., Zhai H.M.Research progress of alkaline hydrogen peroxide bleaching of mechanical pulp.China Pulp and Paper, 2008, 27(1):50-55(in Chinese)
[15]  欧阳嘉, 李鑫, 董郑伟, 等.碱法-酶法处理玉米秸秆的制糖工艺研究.南京林业大学学报(自然科学版), 2010, 34(3):1-5 Ouyang J., Li X., Dong Z.W., et al.Study on preparation of sugar by alkali pretreatment and enzymatic hydrolysis of corn stalk.Journal of Nanjing Forestry University (Natural Science Edition), 2010, 34(3):1-5(in Chinese)
[16]  Chen Y., Stevens M.A., Zhu Y.M., et al.Understanding of alkaline pretreatment parameters for corn stoverenzymatic saccharification.Biotechnology for Biofuels, 2013, 6(1):1-10
[17]  NREL.Biomass analysis technology team laboratory analytical procedures:determination of sugars, byproducts, and degradation products in liquid fraction process samples, Golden, CO, 2006.http://www.eere.energy.gov/biomass/analytical_procedures.html
[18]  Escalante M., Rodriguez-Malaver A.J., Araujo, E., et al.Effect of surfactants on Fenton\'s reagentmediated degradation of Kraft black liquor.Journal of Environmental Biology, 2005, 26(4):709-718
[19]  黄涛, 程康华, 王传槐.吐温-80及碱预处理对饲用稻草木质素含量和纤维素酶解产糖的影响.纤维素科学与技术, 2011, 19(2):52-58 Huang T., Cheng K.H., Wang C.H.Effects of Tween80 and alkali pretreatment on the content of lignin of straw and enzymatic hydrolysis.Journal of Cellulose Science and Technology, 2011, 19(2):52-58(in Chinese)

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