CHARACTERISTICS OF COAL CHAR GASIFICATION AT HIGH TEMPERATURE (Ⅰ) THE EFFECT OF ASH FUSION ON COAL CHAR GASIFICATION

Zhu zibin and Ma Zhihua Lin Shiying; Mitsuho Hirato and(.East China University of Science and Technology; Yoshihiko NinomiyaShanghai 200237) (Tokyo University of Agriculture and Industry; Tokyo 184; Japan)

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CHARACTERISTICS OF COAL CHAR GASIFICATION AT HIGH TEMPERATURE (Ⅰ) THE EFFECT OF ASH FUSION ON COAL CHAR GASIFICATION

更新时间：2025-12-16

- CHARACTERISTICS OF COAL CHAR GASIFICATION AT HIGH TEMPERATURE (Ⅰ) THE EFFECT OF ASH FUSION ON COAL CHAR GASIFICATION
- CIESC Journal Issue 2, (1994)
- 作者机构：
  
  华东理工大学化工系,华东理工大学化工系,日本东京农工大学,日本东京农工大学,日本东京农工大学上海 200237,上海 200237,东京 184,东京 184,东京,184
- 作者简介：
- 基金信息：
- DOI：
  CLC： Q546
- Online First：25 April 1994，
  
  Published：25 April 1994
- 稿件说明：
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Zhu zibin and Ma Zhihua Lin Shiying, Mitsuho Hirato and(.East China University of Science and Technology, Yoshihiko NinomiyaShanghai 200237) (Tokyo University of Agriculture and Industry, et al. CHARACTERISTICS OF COAL CHAR GASIFICATION AT HIGH TEMPERATURE (Ⅰ) THE EFFECT OF ASH FUSION ON COAL CHAR GASIFICATION[J]. CIESC Journal, 1994, (2).
DOI：

Zhu zibin and Ma Zhihua Lin Shiying, Mitsuho Hirato and(.East China University of Science and Technology, Yoshihiko NinomiyaShanghai 200237) (Tokyo University of Agriculture and Industry, et al. CHARACTERISTICS OF COAL CHAR GASIFICATION AT HIGH TEMPERATURE (Ⅰ) THE EFFECT OF ASH FUSION ON COAL CHAR GASIFICATION[J]. CIESC Journal, 1994, (2). DOI：

摘要

在900～1500℃灰分的熔融温度范围内和常压下

研究了煤焦与二氧化碳的气化反应。实验研究发现

活化能随气化过程而变化

除反应初期外

气化反应严重受内扩散过程的影响。高温下的煤焦气化存在一个特性温度

在该温度下

反应中、后期气化速率显著降低

其影响范围在特性温度上下约200～300℃。特性温度与煤种及灰分性质等因素有关

一般低于其相应灰分的软化点温度。

Abstract

Coal char gasification with CO2 was studied in the 900-1500℃ temperature range of ash fusion under normal pressure. It was found that the activation energy changed with the gasification process. Except for the initial stage of reaction

gasification was affected seriously by internal diffusion. There was a characteristic temperature in coal char gasification at a high temperature

where the gasification rate was significantly reduced in the intermediate and final stages of reaction. Its effect covered about 200-300℃ around the characteristic temperature

its value was related to many factors

such as the kind of coal

the properties of ash etc.

generally lower than the ash softening temperature.

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