期刊
BIORESOURCE TECHNOLOGY
卷 101, 期 19, 页码 7635-7640出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.biortech.2010.04.059
关键词
Tagasaste; Chamaecytisus proliferus; Autohydrolysis; Ethanol delignification; Heating value
资金
- Grupo Empresarial ENCE, S.A. (San Juan del Puerto factory, Huelva, Spain)
- CICYT-FEDER (Science and Technology Inter Ministerial Commission, Spanish Government) [CTQ2006-10329/PPQ, AGL2009-13113]
Tagasaste wood (Chamaecytisus proliferus L.F. ssp palmensis) was characterized, chemical and energy terms, and assessed its potential as a lignocellulosic raw material, and its integral fractionation by auto-hydrolysis and delignification with ethanol. The hydrothermal treatment of the raw material at 175-185 degrees C provided a liquor containing a substantially increased amount of oligomers (between 16.6% and 47.4% as percentages with respect to the content of the raw material in each polymer fraction). A cellulose pulp with autohydrolysis treatment increased yields (53-60%), reduced Kappa number (28.8-34.6) but also viscosity (755-857 mL/g), and decreased paper strength (2.97-5.22 kN m/kg). However, beating ethanol cellulose from tagasaste was found to improve its strength-related properties more markedly than in soda pulp from the same material (tensile index of 44 kN m/kg). (C) 2010 Elsevier Ltd. All rights reserved.
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