有机钙作用下褐煤SO<sub>2</sub>、NO析出及燃烧特性

周飞; 牛胜利; 邹鹏; 韩奎华; 路春美; 李刚

有机钙作用下褐煤SO₂、NO析出及燃烧特性

1.
山东大学燃煤污染物减排国家工程实验室, 山东济南 250061;
2.
华能济南黄台发电有限公司, 山东济南 250100

基金项目: 山东省自然科学基金(ZR2009FQ016, ZR2009FM001); 山东大学自主创新基金资助(IIFSDU, 2011GN048)。

详细信息

通讯作者:
路春美(1958-), 女, 教授, 博导, Tel: 0531-88392264, E-mail: cml@sdu.edu.cn。

中图分类号: X701.3
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- 被引次数: 0
出版历程
- 收稿日期: 2011-03-17
- 修回日期: 2011-06-27
- 刊出日期: 2012-02-29

Characteristics of the releasing of sulfur dioxide and nitric oxide and combustion by adding the calcium based organic compound to lignite

1.
National Engineering Laboratory for Coal-Burning Pollutants Emission Reduction, Shandong University, Jinan 250061, China;
2.
Huaneng Ji'nan Huangtai Power Plant CO, Ltd, Ji'nan 250100, China

摘要

摘要: 在管式炉上研究了醋酸调制白云石产物、醋酸钙、丙酸钙等有机钙作用下龙口褐煤燃烧时SO₂、NO的析出特性,并在热分析系统上考察了相应的燃烧特性。合适的工况条件下有机钙能有效抑制SO₂、NO的析出。在973~1 273 K下,有机钙均能有效抑制SO₂的析出,而当温度继续升高,除醋酸钙外,其他有机钙抑制效果下降。在973~1 173 K时,有机钙促进了NO的析出,而当温度高于1 173 K时,醋酸钙和丙酸钙的抑制效果明显。随着钙硫比的增加,有机钙对SO₂、NO抑制效果普遍增强,而醋酸调制白云石产物在钙硫比为2.0~2.5时却促进NO的析出。当钙硫比为2.0时,褐煤着火性能明显提高,着火点降低10~33 K,但其燃尽时间稍有延长。
- 有机钙 /
- 褐煤 /
- SO₂、NO析出特性 /
- 燃烧特性
Abstract: The effect of the calcium based organic compounds of the modified dolomite by acetate (MDA), calcium acetate (CA) and calcium propionate (CP) on the release of sulfur dioxide (SO₂) and nitric oxide (NO) during LK-lignite combustion has been investigated on a horizontal tuber furnace. And also, the combustion characteristics of them have been studied in a thermogravimetric analyzer. Calcium based organic compound can suppress the release of SO₂ and NO under the suitable conditions effectively. In the temperature range of 973~1 273 K, the calcium based organic can inhibit the release of SO₂. But when the temperature grows higher, the inhibition effect of the calcium based organic reduces except CA. In the lower temperature range of 973~1 173 K, the calcium based organic promotes the release of NO, but when the temperature is higher than 1 173 K, CA and CP show the inhibition of NO obviously. The inhibition effect of SO₂ and NO by calcium based organic generally increases with the increase of the mole ratio of calcium to sulfur (Ca/S). But when the Ca/S is between 2.0 and 2.5, MDA promotes the release of NO. With adding the calcium based organic to LK-lignite, when the Ca/S is 2.0, the ignition performance of LK-lignite improves, the ignition reduces 10~33 K, but its burn time is slightly lengthened.
- calcium based organic /
- lignite /
- release of sulfur dioxide and nitric oxide /
- combustion characteristic

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