废钒钛基SCR催化剂的处置方法研究进展  

Research on disposal methods of spent vanadium-titanium-based catalysts

作　　者：侯学军[1,2] 章小明 程文博 王馨 王春霞[1,2] 徐盛明 黄国勇[1,2] HOU Xuejun;ZHANG Xiaoming;CHENG Wenbo;WANG Xin;WANG Chunxia;XU Shengming;HUANG Guoyong(College of New Energy and Materials,China University of Petroleum,Beijing 102249,China;State Key Laboratory of Heavy Oil Processing,China University of Petroleum,Beijing 102249,China;Institute of Nuclear and New Energy Technology,Tsinghua University,Beijing 100084,China)

机构地区：[1]中国石油大学(北京)新能源与材料学院,北京102249 [2]中国石油大学(北京)重质油国家重点实验室,北京102249 [3]清华大学核能与新能源技术研究院,北京100084

出　　处：《化工进展》2021年第10期5313-5324,共12页Chemical Industry and Engineering Progress

基　　金：国家自然科学基金(52022109,51834008);北京市自然科学基金(2202047);中国石油大学(北京)科研基金(2462018YJRC041,2462020YXZZ016)。

摘　　要：当前中国燃煤发电量仍占总发电量很大比重,燃煤电厂会产生大量的氮氧化物,其会对人体和环境造成危害。因此,处理好燃煤电厂产生的氮氧化物十分重要。选择性催化还原(SCR)技术是控制氮氧化物排放的重要手段。而作为该技术的核心,大量的钒钛基SCR催化剂被应用到燃煤电厂氮氧化物的处理工艺中,对废弃的SCR催化剂进行妥善处理也成为了急需解决的问题。本文对相应背景下的文献进行了系统整理,介绍了催化剂再生处理工艺以及有价金属回收技术的最新研究,分析了与再生处理工艺以及有价金属回收技术优化相关的挑战,提出了有关如何开发高效催化剂再生处理工艺以及有价金属回收技术的建议,以推动该方向的进一步研究。At present,coal-fired power generation still accounts for a large proportion of the total power generation in China.Coal-fired power plants will produce a large amount of NOx which can cause harm to the human body and the environment.Therefore,it is essential to properly handle the NOx produced by coal-fired power plants.It is very important to control NOx emissions through using the selective catalytic reduction(SCR)technology.As the core of SCR system,a large number of vanadium-titanium-based SCR catalysts has been applied to remove NOx in coal-fired power plants.It has been an urgent problem to dispose the spent SCR catalysts.In order to motivate further research in the regeneration process of catalyst and the recovery of valuable metals,this paper systematically collated the literature in the corresponding background.The latest research on the catalyst regeneration process and the valuable metals recovery technology were introduced.The challenges related to the regeneration processes and the technologies of valuable metals recovery were analyzed.In addition,the guidelines on how to develop effective regeneration processes and recovery techniques for spent vanadium-titanium-based catalyst were proposed.

关 键 词：钒钛基催化剂 选择催化还原 危险废弃物 再生 有价金属回收 资源循环 

分 类 号：X705[环境科学与工程—环境工程]