The CO2 gasification kinetics of olive residue

被引:151
作者
Ollero, P [1 ]
Serrera, A [1 ]
Arjona, R [1 ]
Alcantarilla, S [1 ]
机构
[1] Univ Seville, Dept Environm Chem & Engn, Seville 41092, Spain
关键词
biomass; residue; gasification; kinetics; thermobalance;
D O I
10.1016/S0961-9534(02)00091-0
中图分类号
S2 [农业工程];
学科分类号
0828 ;
摘要
Orujillo, sometimes called wood matter from pressed oil-stone (WPOS) is a residue from the olive oil mill industry. The generation of this biomass residue is concentrated in small areas allowing its use as fuel for medium size gasification and combustion plants. Rates of gasification of WPOS char were measured in a TGA at various temperatures (800-850-875 -900-950degreesC), CO2 partial pressures (0.20-0.35-0.50 bar) and CO partial pressures (0.0-0.20 bar). The experiments were carried out with a monolayer bed of very fine particles well exposed to the gas so as to minimise mass and heat transfer resistances. Two kinetic models, the nth order model and Langmuir-Hinshelwood model, have been used to fit with the reactivity data. For pure CO2 experiments the kinetic parameters of nth order model were E = 133 kJ/mol and n = 0.43. The Langmuir-Hinshelwood kinetic model clearly describes the observed CO inhibition effect on the CO2 gasification. (C) 2002 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码:151 / 161
页数:11
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