Microwave heating and hydrolysis of rubber wood biomass in ionic liquids

被引:21
作者
Darji, Dazylah [1 ]
Alias, Yatimah [1 ]
Som, Fauzi Mohd [2 ]
Abd Razak, Nurul Hainiza [2 ]
机构
[1] Univ Malaya, Dept Chem, Ctr Ion Liquids, Kuala Lumpur 50603, Malaysia
[2] Rubber Res Inst Malaysia, Malaysian Rubber Board, RRIM Sg Buloh, Sungai Buloh 47000, Selangor, Malaysia
关键词
biomass; characterisation; dissolution; pretreatment; wood; CELLULOSE CRYSTALLINE-STRUCTURE; LIGNOCELLULOSIC BIOMASS; PRETREATMENT; DISSOLUTION; ENERGY;
D O I
10.1002/jctb.4516
中图分类号
Q81 [生物工程学(生物技术)]; Q93 [微生物学];
学科分类号
071005 ; 0836 ; 090102 ; 100705 ;
摘要
BACKGROUNDBiomass from rubber wood has been gaining interest due to its availability and relative economic value. However it is difficult to separate the biomass using common solvents due to its complicated structure. The recent application of ionic liquids as reaction solvents has offered a new platform for its efficient utilization. The dissolution of biomass in ionic liquid via microwave has been investigated to reduce the dissolution time. RESULTSThe pretreatment involves dissolving the biomass in various ionic liquids under domestic microwave radiation. The dissolution rate is dependent on the type of ionic liquid and biomass was found to be easily dissolved in acetate based imidazolium ionic liquid. The highest (up to 85%) substantial dissolution of rubber biomass was reached in 1-ethyl-3-methylimidazolium acetate [C(2)mim][OAc] and 1-butyl-3-methylimidazolium acetate [C(4)mim][OAc]. Furthermore, the amount of glucose resulting from pretreatment with [C(2)mim] [OAc] and [C(4)mim][OAc] was also higher than that from pretreatment with cloride anion. This is due to changes in physico chemical properties such as decreasing crystallinity in biomass as confirmed by XRD, TGA and FTIR analyses. CONCLUSIONAnion acetate based imidazolium ionic liquid was discovered to be a good solvent for the dissolution of rubber biomass under microwave irradiation for converting cellulose to glucose. (c) 2014 Society of Chemical Industry
引用
收藏
页码:2050 / 2056
页数:7
相关论文
共 36 条
[1]  
Adney B., 2008, TECHNICAL REPORT
[2]  
Argyropolous D. S., 2008, US Patent, Patent No. [US20080190013, 20080190013, 2008/0190013 A1]
[3]   Soaking of pine wood chips with ionic liquids for reduced energy input during grinding [J].
Brandt, Agnieszka ;
Erickson, James K. ;
Hallett, Jason P. ;
Murphy, Richard J. ;
Potthast, Antje ;
Ray, Michael J. ;
Rosenau, Thomas ;
Schrems, Michael ;
Welton, Tom .
GREEN CHEMISTRY, 2012, 14 (04) :1079-1085
[4]   Dissolution of Pinus radiata and Eucalyptus globulus woods in ionic liquids under microwave radiation: Lignin regeneration and characterization [J].
Casas, A. ;
Oliet, M. ;
Alonso, M. V. ;
Rodriguez, F. .
SEPARATION AND PURIFICATION TECHNOLOGY, 2012, 97 :115-122
[5]   Substrate pretreatment: The key to effective enzymatic hydrolysis of lignocellulosics? [J].
Chandra, R. P. ;
Bura, R. ;
Mabee, W. E. ;
Berlin, A. ;
Pan, X. ;
Saddler, J. N. .
BIOFUELS, 2007, 108 :67-93
[6]   Transition of Cellulose Crystalline Structure and Surface Morphology of Biomass as a Function of Ionic Liquid Pretreatment and Its Relation to Enzymatic Hydrolysis [J].
Cheng, Gang ;
Varanasi, Patanjali ;
Li, Chenlin ;
Liu, Hanbin ;
Menichenko, Yuri B. ;
Simmons, Blake A. ;
Kent, Michael S. ;
Singh, Seema .
BIOMACROMOLECULES, 2011, 12 (04) :933-941
[7]  
Darji D, 2013, J RUBBER RES, V16, P169
[8]  
Focher B, 2011, IND CROP PROD, V13, P193
[9]  
Fort DA, 2007, GREEN CHEM, V9, P63, DOI [10.1039/b607614a, 10.1039/B607614A]
[10]  
Keshwani D R., 2007, Conference Presentations and White Papers: Biological Systems Engineering