Modelling and measurements of the pyrolysis of large wood particles

被引：111

作者：

Larfeldt, J ^{[1
]}

Leckner, B

Melaaen, MC

机构：

[1] Chalmers Univ Technol, Dept Energy Convers, S-41296 Gothenburg, Sweden

[2] Telemark Inst Technol, Porsgrunn, Norway

来源：

FUEL | 2000年 / 79卷 / 13期

关键词：

pyrolysis; wood; modelling;

D O I：

10.1016/S0016-2361(00)00007-7

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

The influence from structural changes, heat transfer properties of dry wood and pyrolysis mechanism on the pyrolysis of large wood particles were studied. Measurements of temperature distribution and mass loss were performed on cylindrical samples of dry birch wood during pyrolysis in an inert atmosphere at 700 degrees C. A model of wood pyrolysis was modified to include structural changes. Comparisons of measurements and model simulations show that the inclusion of a shrinking model reduces the time of pyrolysis substantially. The varying interior heating rate was found to influence the choice of pyrolysis mechanism. Of four pyrolysis mechanisms found in literature, only one was found to be in agreement with the measurements. (C) 2000 Elsevier Science Ltd. All rights reserved.

引用

页码：1637 / 1643

页数：7

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