Effect of additives on gasification characteristics of char-CO<sub>2</sub> catalyzed by CaO

SUO Xinliang; ZHANG Gang; TAN Xiu; WANG Penghui

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Effect of additives on gasification characteristics of char-CO₂ catalyzed by CaO

更新时间：2025-09-28

- Effect of additives on gasification characteristics of char-CO₂ catalyzed by CaO
- Thermal Power Generation Vol. 46, Issue 5, Pages: 69-73(2017)
- 作者机构：
  
  华电电力科学研究院东北分院
- 作者简介：
- 基金信息：
- DOI：
  CLC： TQ546.4
- Published：2017
- 稿件说明：
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SUO Xinliang, ZHANG Gang, TAN Xiu, et al. Effect of additives on gasification characteristics of char-CO₂ catalyzed by CaO[J]. Thermal power generation, 2017, 46(5): 69-73.
DOI：

SUO Xinliang, ZHANG Gang, TAN Xiu, et al. Effect of additives on gasification characteristics of char-CO₂ catalyzed by CaO[J]. Thermal power generation, 2017, 46(5): 69-73. DOI：

摘要

在化学反应动力学控制实验条件下

研究了不同反应条件下分析纯氨水对CaO催化锦界煤焦-CO_2气化的影响。实验结果表明:添加氨水后

原煤焦的气化活性因子K和平均气化率R_m均出现不同程度的提高

气化温度越高

提高效果越显著

900℃分别提高了20.3%、9.3%;CaO催化煤焦气化的K值和R_m值在850℃提高幅度最大

分别提高了49.7%、35.9%;添加氨水后

原煤焦和CaO催化煤焦气化活化能出现一定程度增加

增加幅度分别为9.5%、14.8%。该结果为提高煤气化速率和效率提供了一种方法和研究方向。

Abstract

Under chemical reaction kinetics control conditions

the effects of analytically pure ammonia on gasification of Jinjie coal char in CO_2 atmosphere catalyzed by CaO were investigated. The experimental results show that

after adding the aqueous ammonia

both the gasification activation factor K and average gasification rate R_m of the raw coal char increased

but to different extents. The enhancement got obvious with the increasing gasification temperature. At 900 ℃

the K and R_m of the raw coal char increased by 20.3% and 9.3%

respectively. The increase of K and R_m of the CaO catalyzed coal char reached the maximum at 850 ℃

about 49.7% and 35.9%

respectively. After adding the aqueous ammonia

the gasifying activation energy of the raw coal char and the CaO catalyzed coal char increased to some extent

and the increasing ranges was 9.5% and 14.8% respectively. The result provides a method and research direction to improving the efficiency and rate of coal gasification.

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Effect of additives on gasification characteristics of char-CO2 catalyzed by CaO

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摘要

Abstract

关键词

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Effect of additives on gasification characteristics of char-CO₂ catalyzed by CaO