小苏打,生活垃圾焚烧烟气,干法脱酸,脱酸效率 ," /> 小苏打,生活垃圾焚烧烟气,干法脱酸,脱酸效率 ,"/> NaHCO3, Municipal Solid Waste Incineration Flue Gas, Dry Deacidification, ,Efficiency of deacidification ,"/> <p class="MsoNormal"> 小苏打干法脱除生活垃圾焚烧烟气中SO<sub><span>2</span></sub><span>和</span><span>HC</span>l试验研究

环境卫生工程

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小苏打干法脱除生活垃圾焚烧烟气中SO2和HCl试验研究

  

  1. 上海康恒环境股份有限公司

Experimental Study on the Dry Removal of SO2 and HCl from Municipal Solid Waste Incineration Flue Gas Using Sodium Bicarbonate

  1. Shanghai SUS Environment Co., Ltd.

摘要：

在生活垃圾焚烧发电厂建立了中试试验平台，探究145~205℃的反应温度下，小苏打烟道停留时间、过量系数和除尘器压差对烟气中细粉小苏打脱HCl、SO2的影响，并与普通消石灰、高比消石灰的脱酸效果进行对比分析。结果表明：小苏打脱氯效率整体高于脱硫效率，其中脱氯和脱硫效率分别在86.27%~99.54%、11.30%~97.30%。反应温度、停留时间以及除尘器压差的提高均可在一定程度上降低过量系数、提高脱酸效率，尤其对SO2去除效果影响较大，但是需要考虑工况的提升带来的经济损失。

关键词: 小苏打')">

小苏打, 生活垃圾焚烧烟气, 干法脱酸, 脱酸效率

Abstract:

a pilot test platform was established in the municipal solid waste incineration power plant, and the effects of sodium bicarbonate flue residence time, excess coefficient and dust collector pressure difference on the removal of HCl and SO2 from flue gas were investigated at the reaction temperature of 145-205℃, and the deacidification effect of sodium bicarbonate was compared with that of ordinary slaked lime and high-specific surface area slaked lime. The results showed that the overall efficiency of chlorine removal by Sodium bicarbonate was higher than that of desulfurization, with chlorine and sulfur removal efficiencies ranging from 86.27% to 99.54% and 11.30% to 97.30%, respectively. Increasing the reaction temperature, residence time, and dust collector pressure difference can reduce the excess coefficient and improve the acid removal efficiency to some extent, especially for SO2 removal, but it is necessary to consider the economic losses brought about by improving the working conditions. 

Key words: NaHCO3')">

NaHCO3, Municipal Solid Waste Incineration Flue Gas, Dry Deacidification,  , Efficiency of deacidification

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