Simulation of coal pyrolysis in plasma jet by CPD model

被引：25

作者：

Tian, YJ ^{[1
]}

Xie, KC ^{[1
]}

Zhu, SY ^{[1
]}

Fletcher, TH ^{[1
]}

机构：

[1] Taiyuan Univ Technol, State Key Lab Chem & Technol C1, Taiyuan 030024, Peoples R China

来源：

ENERGY & FUELS | 2001年 / 15卷 / 06期

关键词：

D O I：

10.1021/ef0002142

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：

Reaction of coal in a plasma jet is complex and extremely rapid, and acetylene and carbon monoxide are the main products in the pyrolysis gas. Coal pyrolysis is assumed as the first step reaction when coal is injected into hot plasma jet with initial average temperature of 3700 K. Chemical percolation devolatilization (CPD) is employed first to simulate this procedure in mechanism. The calculation results indicate coal pyrolysis rate in plasma jet is very fast and the retention time of coal staying in reactor is only several milliseconds. Comparing the calculation with experiment result, it was concluded that the CPD agree with the experiment well when the coal feed rate is larger than about 2.0 g s(-1). As the coal feed rate was increased, the average temperature of coal particle during staying in reactor was reduced and the residual time became long, but it was not found that the residual time influenced the coal conversion evidently.

引用

页码：1354 / 1358

页数：5

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