Pyrolysis of cashew nutshells: Characterization of products and energy balance

被引：65

作者：

Abrego, Javier ^{[1
]}

Plaza, Daniel ^{[1
]}

Luno, Francisco ^{[1
]}

Atienza-Martinez, Maria ^{[1
]}

Gea, Gloria ^{[1
]}

机构：

[1] Univ Zaragoza, Aragon Inst Engn Res I3A, Thermochem Proc Grp GPT, Edificio I D,C Mariano Esquillor S-N, Zaragoza 50018, Spain

来源：

ENERGY | 2018年 / 158卷

关键词：

Cashew nutshell; Pyrolysis; Carbonization; Charcoal; CNSL; BIO-OIL; SLOW PYROLYSIS; NUT SHELL; BIOMASS; LIGNIN; ENTHALPY; WOOD;

D O I：

10.1016/j.energy.2018.06.011

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

Cashew cultivation leads to the generation of large amounts of nutshells. In order to determine whether pyrolysis could be a suitable method for the valorization of this agricultural residue, cashew nutshells (CNS) from Burkina Faso were pyrolyzed in the temperature range between 400 and 600 degrees C in a laboratory-scale fixed bed reactor. The solid, liquid and gaseous fractions were quantified and characterized, with special focus on the solid product. Recovery of the cashew nutshell liquid (CNSL) was accomplished during pyrolysis separately from the pyrolysis liquid. Results suggest that, except for the aqueous fraction, all the products obtained from pyrolysis are suitable for fuel purposes, and that part of the CNSL can be recovered below 200 degrees C during the heating process. A preliminary energy balance of the process shows that burning the gases can provide the energy necessary for the process at a pyrolysis temperature of 500 degrees C. (C) 2018 Elsevier Ltd. All rights reserved.

引用

页码：72 / 80

页数：9

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