| 基于脱硫产物化学组成的脱硫剂利用率研究 |
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| 引用本文： | 王文龙,马春元,胡明强,董勇,徐夕仁.基于脱硫产物化学组成的脱硫剂利用率研究[J].动力工程,2009(12). |
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| 作者姓名： | 王文龙 马春元 胡明强 董勇 徐夕仁 |
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| 作者单位： | 山东大学能源与动力工程学院; |
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| 基金项目： | 国家863计划资助项目(2009AA05Z303); 山东省自然科学基金资助项目(Q2008F10) |
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| 摘 要： | 通过对取自5个不同电厂半干法脱硫装置的脱硫灰进行化学组成分析,发现半干法脱硫产物中存在很大比例的CaCO3,其质量份额与CaSO3相当,是造成半干法烟气脱硫工艺中脱硫剂利用率低的重要原因.针对SO2和CO2的竞争反应进行了试验,结果表明:确实存在SO2和CO2与Ca(OH)2反应的竞争,说明在脱硫反应过程中CO2的影响不可忽视,应该从强化脱硫反应、抑制CO2与脱硫剂反应入手,提高脱硫剂的利用率,以进行半干法脱硫技术的工艺改进.
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| 关 键 词： | 半干法烟气脱硫 脱硫灰 脱硫剂利用率 化学组成 竞争反应 CO2 |
Study on Utilization Ratio of Desulfurizing Agent Based on Composition Analysis of By-products |
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| WANG Wen-long,MA Chun-yuan,HU Ming-qiang,DONG Yong,XU Xi-ren.Study on Utilization Ratio of Desulfurizing Agent Based on Composition Analysis of By-products[J].Power Engineering,2009(12). |
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| Authors: | WANG Wen-long MA Chun-yuan HU Ming-qiang DONG Yong XU Xi-ren |
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| Affiliation: | WANG Wen-long,MA Chun-yuan,HU Ming-qiang,DONG Yong,XU Xi-ren(School of Energy and Power Engineering,Shandong University,Jinan 250061,China) |
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| Abstract: | By analyzing the chemical composition of desulfurization residues taken from five different power plants produced during semi-dry flue gas desulfurization(FGD) process,the problem of low utilization ratio of desulfurizing agent in FGD was found to be caused by existence of large volume of CaCO_3 in the by-products,of which the mass share was equivalent to that of CaSO_3.Experiments were carried out to study the competitive reactions between CO_2 and SO_2 with Ca(OH)_2.Results show that there really exist su... |
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| Keywords: | semi-dry FGD desulfurization residue utilization ratio of desulfurizing agent chemical composition competitive reaction CO_2 |
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