The influence of torrefaction on pyrolysed biomass: The relationship of bio-oil composition with the torrefaction severity

被引：14

作者：

He, Zhen ^{[1
]}

Zhang, Fan ^{[1
]}

Tu, Ren ^{[1
]}

Jia, Zhiwen ^{[1
]}

Cheng, Shuchao ^{[1
]}

Sun, Yan ^{[1
]}

Wu, Yujian ^{[1
]}

Shen, Xiaowen ^{[1
]}

Jiang, Enchen ^{[1
]}

Xu, Xiwei ^{[1
]}

机构：

[1] South China Agr Univ, Coll Mat & Energy, Key Lab Biobased Mat & Energy, Minist Educ, 483 Wushan Rd, Guangzhou 510642, Peoples R China

来源：

BIORESOURCE TECHNOLOGY | 2020年 / 314卷

关键词：

Torrefaction; Carbon element index (CEI); Pyrolysis; Phenols; CELLULOSE; PHENOL; PRETREATMENT; DRY;

D O I：

10.1016/j.biortech.2020.123780

中图分类号：

S2 [农业工程];

学科分类号：

0828 ;

摘要：

In this study, three types of biomass were torrefied at different times (0.5, 1, 1.5 h) and temperature (200, 240, 280, 320 degrees C), which were further pyrolyzed at 550 degrees C after torrefaction. CEI (carbon element index), which was established based on the carbon content of the torrefied biomass, was chosen as an indicator for reflecting torrefaction severity. The results showed that there was a curvilinear relationship between CEI and the physicochemical characteristics, energy recovery of torrefied biomass, which obtained an average goodness of fit was higher than 0.93. Moreover, the goodness of fit between CEI and pyrolysis carbon and bio-oil yield was higher than 0.95 and 0.91, respectively. Especially, the bio-oil composition and CEI were fitted by a quadratic function (y = a + bx + cx(2)). Based on the function, the yield of phenols could be predicted based on the CEI value, which would benefit for the preparation of higher quality bio-oil directionally.

引用

页数：13

共 42 条

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