甘蔗渣在水与四氢萘混合溶剂中的液化工艺优化实验

doi:10.3969/j.issn.1673-5854.2014.06.001

Abstract

Abstract: The effects of five factors on conversion rate during the liquefaction of bagasse in water-tetralin (W-T) mixed solvents were investigated by orthogonal test.The optimal conditions were reaction temperature 270 ℃, reaction time 30 min,mass ratio of bagasse to solvent 1:6,NaOH dosage in alkali-soaking pretreatment 4%, and tetralin dosage 50%(mass fraction in the total solvent). The sequence of influence factors was NaOH dosage>reaction temperature>tetralin dosage>mass ratio of bagasse to solvent>reaction time.The conversion rate of bagasse was 97.9% under the optimal conditions.The results also showed that partial substitute for water with tetralin in liquefaction solvents could increase liquefaction efficiency,reduce reaction temperature and pressure,and improve experimental operating condition.

Key words: orthogonal test, bagasse, liquefaction, water-tetralin mixed solvents

CLC Number:

TQ35

CAO Jiang-fei, LI Cun-long, XIE Ning, ZHOU Xin-xin, HONG Ya-ming, LI Zhi-xia. Optimization of Liquefaction Technology of Bagasse in Water-tetralin Mixed Solvents[J]. bce, 2014, 48(6): 1-5.

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Optimization of Liquefaction Technology of Bagasse in Water-tetralin Mixed Solvents

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