碱土金属Mg和Ca中毒催化剂的再生研究

陆良樑; 李伟; 郭士义; 郭瑞堂; 潘卫国

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DOI:10.3969/j.issn.1006-4729.2016.04.008

Journal of ShangHai University of Electric Power :2016,32(4):344-348

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碱土金属Mg和Ca中毒催化剂的再生研究

陆良樑^1,2, 李伟^3,2, 郭士义^1,2, 郭瑞堂^3,2, 潘卫国^3,2

(1.上海电气电站环保工程有限公司;2.上海发电环保工程技术研究中心;3.上海电力学院)

Regeneration of Catalysts Poisoned by the Alkaline Earth Metals Mg and Ca

LU Liangliang^1,2, LI Wei^3,2, GUO Shiyi^1,2, GUO Ruitang^3,2, PAN Weiguo^3,2

(1.Environmental Engineering Co., Ltd, Shanghai Electric Power, Shanghai 200090, China;2.Engineering Research Center of Shanghai Power Generation Environment Protection, Shanghai 200090, China;3.Shanghai University of Electric Power, Shanghai 200090, China)

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Received:June 17, 2016

中文摘要: 为研究碱土金属Mg和Ca中毒催化剂的再生，采用共沉淀法制备了MnO_x/Ce-ZrO_x催化剂，并用浸渍法制备了Mg和Ca负载量为0.2的中毒催化剂，最后对其进行再生实验的研究.结果表明：酸洗后，中毒催化剂的脱硝活性有了很大程度的恢复，且在180℃和200℃之后超过了新鲜催化剂的效率.BET，NH₃-TPD，XPS结果显示：酸洗之后，中毒催化剂的比表面积、表面酸度和表面吸附氧浓度基本恢复到新鲜催化剂的水平，这是催化剂活性恢复的主要原因.

中文关键词: 碱土金属催化剂酸洗脱硝中毒

Abstract:In order to study the regeneration of alkaline earth metals Mg,Ca poisoned catalyst,a MnO_x/Ce-ZrO_x catalyst is prepared by the co-precipitation method.The poisoning effects of alkaline-earth metals on catalyst are studied in the method of impregnation in the laboratory.Regeneration experiments of deactivated catalyst whose load ratio is 0.2 shows that NO conversion is recovered greatly by washing with sulfuric acid solution,even exceeds fresh catalyst after 180℃ and 200℃ respectively.Characterization of BET,NH₃-TPD,XPS indicates that surface area,surface acidity and concentration of chemisorbed oxygen of deactivated catalyst basically recover to the fresh catalyst,which is the main reason for recovery of activity.

keywords: alkaline earth metals catalyst pickling denitration poisoning

文章编号：20160408 中图分类号： 文献标志码：

基金项目:国家自然科学基金（21546014）；上海市自然科学基金（14ZR1417800）.

Author Name	Affiliation	E-mail
LU Liangliang	Environmental Engineering Co., Ltd, Shanghai Electric Power, Shanghai 200090, China Engineering Research Center of Shanghai Power Generation Environment Protection, Shanghai 200090, China
LI Wei	Shanghai University of Electric Power, Shanghai 200090, China Engineering Research Center of Shanghai Power Generation Environment Protection, Shanghai 200090, China	15121152365@163.com
GUO Shiyi	Environmental Engineering Co., Ltd, Shanghai Electric Power, Shanghai 200090, China Engineering Research Center of Shanghai Power Generation Environment Protection, Shanghai 200090, China
GUO Ruitang	Shanghai University of Electric Power, Shanghai 200090, China Engineering Research Center of Shanghai Power Generation Environment Protection, Shanghai 200090, China
PAN Weiguo	Shanghai University of Electric Power, Shanghai 200090, China Engineering Research Center of Shanghai Power Generation Environment Protection, Shanghai 200090, China

Author Name	Affiliation	E-mail
LU Liangliang	Environmental Engineering Co., Ltd, Shanghai Electric Power, Shanghai 200090, China Engineering Research Center of Shanghai Power Generation Environment Protection, Shanghai 200090, China
LI Wei	Shanghai University of Electric Power, Shanghai 200090, China Engineering Research Center of Shanghai Power Generation Environment Protection, Shanghai 200090, China	15121152365@163.com
GUO Shiyi	Environmental Engineering Co., Ltd, Shanghai Electric Power, Shanghai 200090, China Engineering Research Center of Shanghai Power Generation Environment Protection, Shanghai 200090, China
GUO Ruitang	Shanghai University of Electric Power, Shanghai 200090, China Engineering Research Center of Shanghai Power Generation Environment Protection, Shanghai 200090, China
PAN Weiguo	Shanghai University of Electric Power, Shanghai 200090, China Engineering Research Center of Shanghai Power Generation Environment Protection, Shanghai 200090, China

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