CO2 gasification of charcoals produced at various pressures

被引：28

作者：

Hau-Huu Bui ^{[1
]}

Wang, Liang ^{[2
]}

Khanh-Quang Tran ^{[3
]}

Skreiberg, Oyvind ^{[2
]}

机构：

[1] Chulalongkorn Univ, Petr & Petrochem Coll, Bangkok 10330, Thailand

[2] SINTEF Energy Res, POB 4761, NO-7465 Trondheim, Norway

[3] Norwegian Univ Sci & Technol, Dept Energy & Proc Engn, NO-7491 Trondheim, Norway

来源：

FUEL PROCESSING TECHNOLOGY | 2016年 / 152卷

关键词：

Flash carbonization; Charcoals; CO2; gasification; High-pressure pyrolysis; Kinetic modelling; BIOMASS CHAR GASIFICATION; ENTRAINED-FLOW GASIFIER; FIXED-CARBON YIELD; STEAM GASIFICATION; REACTION-KINETICS; HEATING-RATE; PART; WOOD; REACTIVITY; DIOXIDE;

D O I：

10.1016/j.fuproc.2016.06.033

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

In this work, stem wood and branches and tops of Norwegian spruce and birch were carbonized at different pressures, producing charcoals of which the CO2 gasification reactivity was studied by means of a thermogravimetric analyzer operated isothermally at 850 degrees C. The results reveal that the gasification reaction rates of charcoals produced under higher pressures was lower than those produced at the atmospheric pressure. Clear correlations between the CO2 gasification reactivity of the charcoals and their fuel and chemical properties, including the catalytic effect of the inorganic matter, were observed. The semi-empirical power law kinetic model described well the gasification behavior with high fit quality. The activation energy was found to be within 140-160 kJ/mol, whereas the reaction order varied in the range of 0.4-0.6. (C) 2016 Elsevier B.V. All rights reserved.

引用

页码：207 / 214

页数：8