SULPHUR RETENTION CHARACTERISTIC OF CALCIUM-BASED SULPHUR-FIXING AGENT MODIFIED BY PROPIONIC ACID DURING COAL COMBUSTION

ZHOU Fei; NIU Shengli; HAN Kuihua; ZOU Peng; LU Chunmei National Engineering Laboratory for Coal-Buring Pollutants Emission Reduction

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SULPHUR RETENTION CHARACTERISTIC OF CALCIUM-BASED SULPHUR-FIXING AGENT MODIFIED BY PROPIONIC ACID DURING COAL COMBUSTION

Thermal Power Generation Vol. 41, Issue 8, Pages: 24-27(2012)

更新时间：2025-09-28

- SULPHUR RETENTION CHARACTERISTIC OF CALCIUM-BASED SULPHUR-FIXING AGENT MODIFIED BY PROPIONIC ACID DURING COAL COMBUSTION
- 作者机构：
  
  山东大学燃煤污染物减排国家工程实验室
- 作者简介：
- 基金信息：
- DOI：
  CLC： TQ534.9
- Published：2012
- 稿件说明：
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ZHOU Fei, NIU Shengli, HAN Kuihua, et al. SULPHUR RETENTION CHARACTERISTIC OF CALCIUM-BASED SULPHUR-FIXING AGENT MODIFIED BY PROPIONIC ACID DURING COAL COMBUSTION[J]. Thermal Power Generation, 2012, 41(8): 24-27.
DOI：

ZHOU Fei, NIU Shengli, HAN Kuihua, et al. SULPHUR RETENTION CHARACTERISTIC OF CALCIUM-BASED SULPHUR-FIXING AGENT MODIFIED BY PROPIONIC ACID DURING COAL COMBUSTION[J]. Thermal Power Generation, 2012, 41(8): 24-27. DOI：

摘要

采用丙酸改性氢氧化钙制成1种新型钙基固硫剂。以龙口褐煤和聊城贫煤为试验煤种

研究了该钙基固硫剂在煤粉燃烧过程中的固硫特性以及对煤粉燃烧特性的影响。结果表明

新型钙基固硫剂的固硫性能明显优于石灰石

1 323K时

对龙口褐煤的固硫效率高达62%

较石灰石高28个百分点;钙基固硫剂的固硫效率随着钙硫摩尔比的提高先上升后趋于平缓

最佳钙硫摩尔比为1.5～2.0;加入新型钙基固硫剂后

龙口褐煤燃烧反应活化能明显降低。

Abstract

A new kind of calcium-based de-sulphur agent has been prepared by using propionic acid to modify calcium hydroxide.Taking Longkou lignite and Liaocheng lean coal as the test sample

the de-sulphur performance of said agent and its influence on coal combustion characteristic was studied.Results show that

the new agent's de-sulphur behavior is obviously superior to that of the limestone.At 1 323 K

the sulphur-capture rate of the new agent on Longkou lignite reaches 62%

about 28 percent point higher than that of the limestone.As the Ca/S mole ratio increasing

the sulphur retention rate first increases then becomes gentle

the optimum Ca/S mole ratio is from 1.5 to 2.0.After adding the new calcium-based sulphur-fixing agent

the activation energy of Longkou lignite combustion reduces dramatically.

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