SCR催化剂再生中去除中毒物质的实验研究  

A research of wiping off the poison substance on catalyst in the regeneration of SCR

作　　者：邱坤赞[1] 宋晋[1] 柳东海 崔力文[1] 高翔[1] 

机构地区：[1]浙江大学能源清洁利用国家重点实验室,浙江杭州310027

出　　处：《能源工程》2014年第4期28-32,共5页Energy Engineering

基　　金：国家"863"发展计划资助项目(2013AA065401);浙江省科技计划项目(2011C13020)

摘　　要：针对传统钒系SCR催化剂的再生方式,分别研究了水洗、酸洗处理对催化剂性能的影响。结果表明,水洗可以去除14%的中毒元素Na,酸洗几乎能去除全部的Na,但与此同时也洗去大约22.6%的V。Na中毒使催化剂的氧化能力与表面酸位对NH3的吸附能力大幅下降,水洗、酸洗工艺处理后可以使中毒催化剂的氧化能力与NH3吸附能力提高。此外中毒和再生处理过程对催化剂的物理结构影响较小。A research on the regeneration process of SCR catalyst was applied to study the effect of water and acid wash -ing on the performance of catalyst .The results showed that water washing could wipe off 14% poison element of sodium （Na） on the catalyst, and acid washing could wipe off almost all of the Na , but the washing steps also wiped off 22. 6% vanadium （V） on the catalyst.The poison element Na made the oxidize ability and the ammonia adsorption capac -ity of catalyst declined sharply .After the water and acid washing , the oxidize ability and the ammonia adsorption ca -pacity of deactivated catalyst can be enhanced .In addition, both the poisoning and washing procedure had almost no effect on the physical structure .

关 键 词：SCR催化剂 再生 水洗 酸洗 

分 类 号：X511[环境科学与工程—环境工程]