磷酸丙酮法木质纤维素预处理中木质素的分离与表征

应用化学, 2014, 31(5): 570-576. doi: 10.3724/SP.J.1095.2014.30374

磷酸丙酮法木质纤维素预处理中木质素的分离与表征

康鹏 ^1, , 郑宗明 ^2, , 覃吴 ^3, , 杨勇平 ^4, , 董长青 ^5,

1.华北电力大学可再生能源学院生物质发电成套设备国家工程实验室北京102206

2.华北电力大学可再生能源学院生物质发电成套设备国家工程实验室北京102206

3.华北电力大学可再生能源学院生物质发电成套设备国家工程实验室北京102206

4.华北电力大学可再生能源学院生物质发电成套设备国家工程实验室北京102206

5.华北电力大学可再生能源学院生物质发电成套设备国家工程实验室北京102206

基金项目: 高等学校学科创新引智计划资助(B12034) 教育部新世纪优秀人才计划(NCET-10-0374) 北京市哲学社会科学规划项目(11JGA010) 中国华能集团公司科学技术项目(HNKJ11-H25) The National Key Basic Research and Development Plan(2009CB219801) National Basic Research Program of China(2012BAA09B01,2012BAD30B01) Fundamental Research Funds for the Central Universities(09ZG03,11ZG08,12MS15) Natural Science Foundation of Beijing(3101001) 中央高校基本科研业务费专项资金(09ZG03,11ZG08,12MS15) 国家自然科学基金(51106051,51206044,51276062) Project of Beijing Municipal Philosophy and Social Science Planning(11JGA010) the National Natural Science Foundation of China(51106051,51206044,51276062) The Science and Technology Project Chinese Huaneng Group(HNKJ11-H25) 北京市自然科学基金(3101001) 国家重点基础研究发展计划(2009CB219801) New Century Excellent Talents in University(NCET-10-0374) New Teachers in Universities and Colleges Doctoral Program Foundation of Ministry of Education(2011003612001) 教育部高等学校博士点新教师基金项目(2011003612001) 国家科技支撑计划(2012BAA09B01,2012BAD30B01) The Discipline Innovative Engineering Project Grants(B12034)

关键词：纤维乙醇 , 木质素 , 磷酸丙酮 , 红外吸收光谱 , 核磁共振氢谱

Separation and Characterization of Lignin in Phosphoric Acid-acetone Pretreating Process

Keywords： cellulosic ethanol , lignin , phosphoric acid-acetone pretreatment , FT-IR , 1H NMR

在木质纤维素制取乙醇过程中,合理高效地分离出木质素并加以利用,可以提升纤维乙醇整体工艺的经济性.以杨木粉为原料,从木质素产率和改性程度的角度出发,分析对比了3种预处理方法所提取的木质素.结果表明,磷酸丙酮法所得木质素产率达到15％～25％,碱法蒸煮法和有机溶剂所得木质素仅占到9.58％和13.47％.红外吸收光谱结果表明,磷酸丙酮木质素在1608、1507和1463 cm-1等处具有相对最强的吸收信号,在1650 cm-1处也有共轭羰基吸收峰,因此磷酸丙酮木质素的改性程度相对较小,核磁共振氢谱表征也同时验证了这一结果,这种木质素适于进一步的开发利用.低压常温下的磷酸丙酮预处理方法可以有效提升纤维乙醇工艺的经济性.

参考文献

[1]	KANG Peng,ZHENG Zongming,DONG Changqing,et al.Review of Steam Explosion of Lignocellulose for Pretreating[J].Renew Energy Resour,2010,28 (3):112-116 (in Chinese).康鹏,郑宗明,董长青,等.木质纤维素蒸汽爆破预处理技术的研究进展[J].可再生能源,2010,28(3):112-116.
[2]	International Energy Agency.Technology Roadmap Biofuels for Transport[EB/OL].2011.
[3]	YU Qiang,ZHUANG Xinshu,YUAN Zhenhong,et al.Research Progress on Fuel and Chemicals Production from Lignocellulose Biomass[J].Chem Ind Egg Prog,2012,31(4):784-791 (in Chinese).余强,庄新姝,袁振宏,等.木质纤维素类生物质制取燃料及化学品的研究进展[J].化工进展,2012,31(4):784-791.
[4]	LI Zhongzheng.Research on Renewable Biomass Resource-Lignin[J].J Nanjigg Forestry Univ (Nat Sci Edn),2012,35 (1):1-7 (in Chinese).李忠正.可再生生物质资源-木质素的研究[J].南京林业大学学报(自然科学版),2012,35(1):1-7.
[5]	JIANG Tingda.Lignin[M].Beijing:Published Center of Environmental Science and Engineering,2009:50-99 (in Chinese).蒋挺大.木质素[M].北京:环境科学与工程出版中心,2009:50-99.
[6]	LIAO Junhe,LUO Xuegang.Technology of High-efficient Separating Lignin from Fiber[J].J Cellulose Sci Technol,2003,11(4):60-64(in Chinese).廖俊和,罗学刚.木质素、纤维素高效分离技术[J].纤维素科学与技术,2003,11(4):60-64.
[7]	Kang P,Qin W,Zheng Z M,et al.Theoretical Study on the Mechanisms of Cellulose Dissolution and Precipitation in the Phosphoric Acid-Acetone Process[J].Carbohyclr Polym,2012,90 (4,6):1771-1778.
[8]	Gomalez Alriols M,Tejado A,Blanco M,et al.Agricultural Palm Oil Tree Residues as Raw Material for Cellulose,Lignin and Hemicelluloses Production by Ethylene Glycol Pulping Process[J].Chem Eng J,2009,148(1):106-114.
[9]	Kang P,Zheng Z M,Qin W,et al.Efficient Fractionation of Chinese Poplar Biomass with Enhanced Enzymatic Digestibility and Modified Acetone-soluble Lignin[J].Bioresources,2011,6(4):4705-4720.
[10]	LI Qiang,WANG Haisong,GAO Yang,et aL Improving Alkaline Pretreatment of Corn Stover to Enhance Enzymatic Saccharification[J].China Pulp Paper Ind,2012,33(10):51-55(in Chinese).李强,王海松,高扬,等.改进玉米秸秆化学预处理提高后续生物酶解糖化效率的研究[J].中华纸业,2012,33(10):51-55.
[11]	LIU Zhong,QI Hongsheng.Configuration Transformation of Lignin in Wheat Straw Acid-Catalytic Ethanol Pulping Process[J].J Tianjing Univ Sci Technol,2008,23(2):10-13(in Chinese).刘忠,齐宏升.麦草酸催化乙醇法制浆过程中木质素结构的变化[J].天津科技大学学报,2008,23(2):10-13.
[12]	China Light Industry Association.GB/T 2677.8-94,Determination of Acid Insoluble Lignin in Fibrous Material[S].Beijing:China Standard Press,1981 (in Chinese).中国轻工总会.GB/T 2677.8-94,造纸原料酸不溶木素含量的测定[S].北京:中国标准出版社,1981.
[13]	Lundquist K,Ohlsson B,Simonson R.Isolation of Lignin by Means of Liquid-liquid Extraction[J].Svensk Papperstidnigg,1977,80(5):143-144.
[14]	Zhang Y H,Ding S Y,Mielenz J R,et al.Fractionating Recalcitrant Lignocellulose at Modest Reaction Conditions[J].Biotechnol Bioeng,2007,97:214-223.
[15]	LIU Zhong.Review of Pulp and Paper[M].Beijing:China Light Industry Press,2007:32-68(in Chinese).刘忠.制浆造纸概论[M].北京:中国轻工业出版社,2007:32-68.
[16]	WANG Qingliu.Forest Chemistry Technology[M].Beijing:China Forestry Press,1995:97-137(in Chinese).王庆六.林产化学工艺学[M].北京:中国林业出版社,1995:97-137.
[17]	ZHOU Xuefei.Application of Ethanol in Pulping Industry[J].J Cellulose Sci Technol,2005,13 (1):56-60 (in Chinese).周学飞.乙醇在制浆工艺中的应用[J].纤维素科学与技术,2005,13(1):56-60.
[18]	WANG Shuai,DOU Sen,LIU Yanli,et al.Characterization of Soil by FTIR Spectroscopic Analyses after Being Inoculated with Different Microorganisms Plus Wheat Straw[J].Spectrosc Spectr Anal,2012,32(9):2409-2413 (in Chinese).王帅,窦森,刘艳丽,等.微生物对黑土添加麦秸后腐殖质结构特征影响的红外光谱研究[J].光谱学与光谱分析,2012,32(9):2409-2413.
[19]	WANG Haiyang.Research on Synthesis of Epoxy Resins Based on Bagasse Lignin from Alkali-oxygen Pulping Waste Liquor[D].Kunming University of Science and Technology,2004:40-42(in Chinese).王海洋.蔗渣氧碱木质素基环氧树脂的合成研究[D].昆明理工大学,2004:40-42.
[20]	HU Lihong,ZHOU Yonghong,PAN Hui,et al.Study on Lignin Demethylation and Structural Characterization of Its Products[J].Chinese Polym Bull,2012,(3):77-84(in Chinese).胡立红,周永红,潘晖,等.木质素脱甲基化改性及产物结构表征[J].高分子通报,2012,(3):77-84.
[21]	ZHENG Zhifeng,ZOU Juchun,CHEN Lang,et al.Analysis of Walnut Shell Lignin by 1 H NMR[J].J Northwest Forestry Univ,2007,22(2):131-133 (in Chinese).郑志锋,邹局春,陈浪,等.核桃壳木质素的1H NMR分析[J].西北林学院学报,2007,22(2):131-133.
[22]	CHEN Xiaoxu.Studies on Pretreatment of Wheat Straw by Glycerol[D].Jiangnan University,2010:25-28(in Chinese).陈晓旭.麦草甘油预处理的研究[D].江南大学,2010:25-28.

上一张下一张

计量

下载量()
访问量()

作者相关

文章评分

您的评分：
1

0%
2

0%
3

0%
4

0%
5

0%

材料期刊网