Comparative study of bio-oil production from sugarcane bagasse and palm empty fruit bunch: Yield optimization and bio-oil characterization

被引:56
|
作者
Vecino Mantilla, Sebastian [1 ]
Gauthier-Maradei, Paola [1 ]
Alvarez Gil, Pedro [1 ]
Tarazona Cardenas, Sindy [1 ]
机构
[1] Univ Ind Santander, CEIAM, Bucaramanga, Colombia
关键词
Intermediate pyrolysis; Simplex methodology; Bio-oil maximization; FIXED-BED PYROLYSIS; VACUUM PYROLYSIS;
D O I
10.1016/j.jaap.2014.04.003
中图分类号
O65 [分析化学];
学科分类号
070302 ; 081704 ;
摘要
This research focused primarily on the process optimization for bio-oil production in a pilot-scale batch reactor operating in a fixed bed and using two important agricultural residues from Santander Department in Colombia: sugarcane bagasse (SB) and palm empty fruit bunch (EFB). The Simplex method was applied to develop experimental tests in which three main variables were studied: temperature, gas residence time and particle size. The choice of such variables was based on literature review suggesting that they have a major influence on bio-oil yield. The ranges of the operating conditions were: temperature 460-600 degrees C, gas residence time 16-80s and particle size 0.5-1.4mm. The analysis of variance (ANOVA) shows the temperature being the most influential variable on the bio-oil yield. The other variables were not significant for bio-oil production from intermediate pyrolysis. In the case of SB, the best operating conditions (temperature 560 degrees C, gas residence time 77s and particle size 0.5-0.85 mm) resulted in a bio-oil yield of 53.4 wt%, whereas in the case of EFB, the best operating conditions (temperature 540 degrees C, gas residence time 31 s and particle size <0.5 mm) resulted in a bio-oil yield of 48.4 wt%. However, the physical-chemical properties of bio-oil stemming from the two studied biomasses are completely different, where the bio-oil from EFB presents the best HHV of 34.91 MJ/kg, the highest pH (3.9) and the lowest density (approximately 958 kg/m(3)). (C) 2014 Elsevier B.V. All rights reserved.
引用
收藏
页码:284 / 294
页数:11
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