用于柴油机尾气脱硫捕集器的干式脱硫材料研究进展  

A Review on Development of Dry Desulfurization Materials for DeSO_x Filter in Diesel Exhaust

作　　者：刘学成[1] 黄宏宇[1] 大阪侑吾 何兆红[1] 杨希贤[1] 王智辉[1] 王南南[1] 

机构地区：[1]中国科学院广州能源研究所,广州510640 [2]日本金泽大学,金泽9201192

出　　处：《新能源进展》2015年第4期299-304,共6页Advances in New and Renewable Energy

基　　金：自然科学基金外国青年学者研究基金项目(21450110061)

摘　　要：柴油机尾气处理系统中脱除氮氧化合物(NOx)的催化剂易受硫的侵蚀而中毒。为避免SOx对净化NOx催化剂的毒害作用,一种有效的解决办法是将脱硫捕集器置于脱除NOx催化剂的系统之前来捕获柴油机尾气中的氧化硫(SOx)。本文针对贵金属催化剂、金属碳酸盐、金属氧化物等几种主要应用于柴油机脱硫捕集器的干式脱硫材料,主要阐述了各自的脱硫原理及性能,并分析了各种脱硫材料的研究现状和工业化应用前景,并指出了高性能且价格低廉的金属氧化物是未来应用于柴油机脱硫捕集器的主要方向。NOx removal catalysts in the diesel engine exhaust system are sulfur-sensitive. The DeSOx filter upstream of NOx removal system can capture SOx to prevent NOx removal catalysts from SOx poisoning in diesel engine exhaust. This paper is oriented toward some main dry desulfurization materials for DeSOx filter in diesel exhaust system, such as precious metal catalyst, metal carbonate and metal oxide. We laid emphasis on the desulfurization mechanism and performance of each material. The research status and industrial application prospect of those materials were also analyzed. It is pointed out that the cheap metal oxides with good desulfurization performance are appropriate for applications in the diesel DeSOx filters.

关 键 词：柴油机尾气 脱硫捕集器 干式脱硫材料 脱硫机理 

分 类 号：TK421[动力工程及工程热物理—动力机械及工程] X5[环境科学与工程—环境工程]