Assessing the potential of biofuel (biochar) production from food wastes through thermal treatment

被引：55
作者：
Rago, Yogeshwari Pooja [1 ]
Surroop, Dinesh [1 ]
Mohee, Romeela [1 ]
机构：
[1] Univ Mauritius, Fac Engn, Dept Chem & Environm Engn, Reduit 80837, Mauritius
来源：
BIORESOURCE TECHNOLOGY | 2018年 / 248卷
关键词：
Torrefaction; Food waste; Mass loss; Energy yield; FTIR of bio-oil; LOW-TEMPERATURE CARBONIZATION; OIL PALM BIOMASS; FUEL CHARACTERISTICS; HYDROTHERMAL CARBONIZATION; TORREFACTION CONDITIONS; ENERGY PROPERTIES; HEATING RATE; MASS-LOSS; PYROLYSIS; PRETREATMENT;
D O I：
10.1016/j.biortech.2017.06.108
中图分类号：
S2 [农业工程];
学科分类号：
0828 ;
摘要：
This work primarily investigated the feasibility of generating high quality biochar from food wastes (FW) torrefaction. The thermal behavior of FW torrefaction was studied between 225 and 300 degrees C for 1 and 3 h at a fixed heating rate of 15 degrees C/min. Torrefaction upgraded the energy density, calorific value and carbon content of FW compared to the untreated feedstock. Mass loss constituted a good measure of the reactivity and ease of degradation of FW based on the cumulative effect of time and temperature. The fuel properties of torrefied FW approached those of coal whilst their high energy yields confirmed their use as potential coal substitutes in thermal conversion systems. Torrefaction at 275 degrees C at both residence times were optimal while severe torrefaction at 300 degrees C for 3 h was energetically inefficient. FTIR analysis and the increased HHV of bio-oil fractions revealed that bio-oil could be used to produce value-added chemicals and biofuels upon upgrading. (C) 2017 Elsevier Ltd. All rights reserved.
引用
收藏
页码：258 / 264
页数：7
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