Using our self-designed facility for lignocellulosic biomass hydrolysis under extremely low acid, and under the optimal reaction conditions of hemicellulose and cellulose determined by xylan and quantitative filter paper as the model, two-step dilute acid hydrolysis was carried out in detail on pine, fast-growing poplar and maize straw. The corresponding conversion ratio is 41.78%, 57.84% and 53.44% and the total reducing sugar conversion ratio is 39.28%, 42.83% and 23.82% respectively. Simultaneously, sugar component analysis of the products was performed by high performance liquid chromatography (HPLC) and monosaccharide and oligosaccharide content were compared. Finally, poplar hydrolysis residues were analyzed by proximate and ultimate analysis.
WANG Shurong, LUO Zhongyang, CEN Kefa, ZHUANG Xinshu
. Experimental study and product analysis of lignocellulosic
biomass hydrolysis under extremely low acids[J]. Frontiers in Energy, 2008
, 2(3)
: 268
-272
.
DOI: 10.1007/s11708-008-0046-x
1. Laser M . Hydrothermalpretreatment of cellulosic biomass for bioconversion to ethanol. Dissertation for the Doctoral Degree. Dartmouth: Thayer School of Engineering, Dartmouth College, 2001
2. Pettersson P O, Yorget R W, Eklund R . Simplistic modeling approach to heterogeneous diluteacid hydrolysis of cellulose microcrystallites. Applied Biochemistry and Biotechnology, 2003, 106(1–3): 451–455. doi:10.1385/ABAB:106:1‐3:451
3. Zhuang X S, Wang S R, Luo Z Y, et al.. Experiment and products analysis research oncellulose hydrolysis under extremely low acids. Acta Energiae Solaris Sinica, 2006, 27(5): 515–519 (in Chinese)
4. Dong X Y . Biochemical Experiments (for engineering specialty). Beijing: Chemical EngineeringPublishing Company, 2003 : 34–37 (in Chinese)
5. Sasaki M, Kabyemela B, Malaluan R, et al.. Cellulose hydrolysis in subcritical and supercriticalwater. Journal of Supercritical Fluids, 1998, 13(2): 261–268
6. Lv X Y, Potian Z Y, Lingmu J Z . Discompose kenetics and products distribution of cellulosein near-critical water. Transactions ofChemical Engineering, 2001, 52(6): 556–559 (in Chinese)
7. Saeman J F . Kinetics of wood saccharification hydrolysis of cellulose and decompositionof sugars in dilute acid at high temperature. Industrial and Engineering Chemistry, 1945, 37(1): 43–52. doi:10.1021/ie50421a009
