STUDY OF THE DEVOLATILIZATION KINETICS OF KENAF BY ISOCONVERSIONAL METHODS. INFLUENCE OF VARIABLES

被引：0
|
作者：
Roman, Silvia [1 ]
Ledesma, Beatriz [1 ]
Alvarez-Murillo, Andres [1 ]
Al-Kassir, Awf [2 ]
Felix Gonzalez, Juan [1 ]
机构：
[1] Univ Extremadura, Dept Appl Phys, Ave Elvas S-N, Badajoz 06006, Spain
[2] Univ Extremadura, Dept Mech Energet & Mat, Ave Elvas S-N, Badajoz 06006, Spain
来源：
ENVIRONMENTAL ENGINEERING AND MANAGEMENT JOURNAL | 2018年 / 17卷 / 06期
关键词：
kenaf; pyrolysis; kinetics; model-free methods; PYROLYSIS; BIOMASS;
D O I：
10.30638/eemj.2018.140
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
The thermal degradation of kenaf (Hibiscus cannabinus) under the effect of several variables (particle size, Ar flow rate, sample initial mass and heating rate) was investigated. From experimental data and by application of various model-free methods (Friedman, Kissinger-Akahira-Sunose and Flynn-Wall-Ozawa), the activation energies (E-A) were calculated as a function of conversion. The results obtained allowed to conclude that kenaf follows a multi-stage degradation mechanism, with E-A values ranging 170-225 kJ mol(-1). Despite the slight differences showed by the three methods on the E-A values, they agreed about the pattern of E-A with conversion.
引用
收藏
页码：1417 / 1424
页数：8
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