Kinetic modelling of steam gasification of various woody biomass chars: Influence of inorganic elements

被引：166

作者：

Dupont, Capucine ^{[1
]}

Nocquet, Timothee ^{[1
]}

Da Costa, Jose Augusto, Jr. ^{[1
]}

Verne-Tournon, Christele ^{[1
]}

机构：

[1] Commissariat Energie Atom & Energies Alternat, F-38054 Grenoble 09, France

来源：

BIORESOURCE TECHNOLOGY | 2011年 / 102卷 / 20期

关键词：

Biomass; Steam gasification; Char; Inorganic elements; Kinetics; CO2; GASIFICATION; SOLID REACTIONS; FLUIDIZED-BED; COAL-CHAR; REACTIVITY; PYROLYSIS; GAS;

D O I：

10.1016/j.biortech.2011.07.016

中图分类号：

S2 [农业工程];

学科分类号：

0828 ;

摘要：

A study was performed on the influence of wood variability on char steam gasification kinetics. Isothermal experiments were carried out in a thermobalance in chemical regime on various wood chars produced under the same conditions. The samples exhibited large differences of average reaction rate. These differences were linked neither with the biomass species nor age and may be related to the biomass inorganic elements. A modelling approach was developed to give a quantitative insight to these observations. The grain model was used on one biomass of reference for temperatures between 750 and 900 degrees C and steam partial pressures between 0 and 0.27 bar. The model was applied to the other samples through the addition of an integral parameter specific to each sample. A satisfactory correlation was found between this parameter and the ratio pota ssium/silicium. This result highlighted the catalytic effect of potassium and inhibitor effect of silicium on the reaction. (C) 2011 Elsevier Ltd. All rights reserved.

引用

页码：9743 / 9748

页数：6

共 32 条

[1]

Barrio M., 2002, EXPT INVESTIGATION S

[2]

BHATIA SK, 1980, AICHE J, V26, P379, DOI 10.1002/aic.690260308

[3] Influence of pyrolysis conditions on the structure and gasification reactivity of biomass chars [J].

Cetin, E ;

Moghtaderi, B ;

Gupta, R ;

Wall, TF .

FUEL, 2004, 83 (16) :2139-2150

[4] KINETICS OF GASIFICATION OF DOUGLAS-FIR AND COTTONWOOD CHARS BY CARBON-DIOXIDE [J].

DEGROOT, WF ;

SHAFIZADEH, F .

FUEL, 1984, 63 (02) :210-216

[5] Combustion and gasification rates of lignocellulosic chars [J].

Di Blasi, Colomba .

PROGRESS IN ENERGY AND COMBUSTION SCIENCE, 2009, 35 (02) :121-140

[6]

Dupont C., 2010, INT J CHEM REACTOR E, P8

[7] Study about the kinetic processes of biomass steam gasification [J].

Dupont, Capucine ;

Boissonnet, Guillaume ;

Seller, Jean-Marie ;

Gauthier, Paola ;

Schweich, Daniel .

FUEL, 2007, 86 (1-2) :32-40

[8] PHYSICAL AND CHEMICAL CHARACTERISTICS OF WOOD ASH [J].

ETIEGNI, L ;

CAMPBELL, AG .

BIORESOURCE TECHNOLOGY, 1991, 37 (02) :173-178

[9] Properties of high ash coal-char particles derived from inertinite-rich coal: II. Gasification kinetics with carbon dioxide [J].

Everson, Raymond C. ;

Neomagus, Hein W. J. P. ;

Kaitano, Rufaro ;

Falcon, Rosemary ;

du Cann, Vivien M. .

FUEL, 2008, 87 (15-16) :3403-3408

[10] Kinetic models comparison for non-isothermal steam gasification of coal-biomass blend chars [J].

Fermoso, J. ;

Gil, M. V. ;

Pevida, C. ;

Pis, J. J. ;

Rubiera, F. .

CHEMICAL ENGINEERING JOURNAL, 2010, 161 (1-2) :276-284

← 1 2 3 4 →