| 煤粉炉内喷射吸收剂脱硫技术研究 |
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| 引用本文： | 杜 渐,高金和,城户伸夫.煤粉炉内喷射吸收剂脱硫技术研究[J].环境科学研究,1996,9(2):22-25. |
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| 作者姓名： | 杜 渐 高金和 城户伸夫 |
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| 作者单位： | 1.中国环境科学研究院大气所,北京 100012 |
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| 摘 要： | 在一小型热态煤粉炉煤燃烧试验装置上,进行了炉内直接喷射吸收剂脱硫和二段燃烧降低NOx研究。试验显示脱硫效率与脱硫剂种类、喷入量和喷入位置有关,二段燃烧可降低NOx排放。以石灰石、白云石和消石灰比较,消石灰脱硫效果最佳;以CaCO3为脱硫剂,当Ca/S为4时,脱硫效率为80%;当喷入温度为1050℃,脱硫效果最好。合理的二段燃烧有利于降低NOx排放,但对SO2排放有一定的影响。
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| 关 键 词： | 煤粉炉 脱硫 吸收剂 喷射 |
| 收稿时间： | 1995/10/9 0:00:00 |
Study on the Desulfurization Technology of Injecting Absorbent in Pulverized Coal Combustor |
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| DU Jian,GAO Jinhe and KIDO Nobuo.Study on the Desulfurization Technology of Injecting Absorbent in Pulverized Coal Combustor[J].Research of Environmental Sciences,1996,9(2):22-25. |
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| Authors: | DU Jian GAO Jinhe and KIDO Nobuo |
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| Institution: | 1.Chinese Research Academy of Environmental Sciences, Beijing 1000122.Thermal Energy and Combustion Engineering Department, Tsukuba, Japan |
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| Abstract: | On a small-scale pulverized coal combustion apparatus, the following two techniques were researched, desulfurizing by directly injecting absorbent to pulverized coal and reducing of NOx emission by two stage combustion. The result showed that SO2 removal rate is related with the variety, quantity and position of injecting absorbent, and two-stage combustion can reduce NOx emission. Compared with limestone and dolomite, when used as the absorbent for desulfurizing, calcium hydroxide has the best effect; When the absorbent is the limestone and Ca/S=4, the SO2 removal rate is about 80%; The SO2 removal rate is the highest when the injecting temperature is 1050℃. Suitable two-stage combustion can reduce NOx emission, but has some negative effect on SO2 removal at the same time. |
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