文献类型：期刊文献

中文题名：改性USY型FCC催化剂对硫转移性能的影响

英文题名：Influence of Modification of FCC Catalyst on the Performance of Sulfur Transfer

作者：陈清[1];沈本贤[1];凌昊[1]

机构：[1]华东理工大学化工学院,上海200237

年份：2004

卷号：30

期号：6

起止页码：623

中文期刊名：华东理工大学学报（自然科学版）

外文期刊名：Journal of East China University of Science and Technology

收录：CSTPCD;;EI(收录号：2005068830073);Scopus;北大核心:【北大核心2000】；CSCD:【CSCD2011_2012】；

基金：中国石油化工集团公司资助项目(No.103139)

语种：中文

中文关键词：硫转移;表层尖晶石;氧化镁;催化裂化

外文关键词：sulfur transfer; out-layer Mg-Al spinel; MgO; catalytic cracking

摘要：通过考察MgO对USY型催化裂化(FCC)催化剂改性所引起的基质结构的变化,研究了不同反应条件及引入铈、镧、磷对硫转移活性的影响。结果表明:改性导致基质表面形成了表层镁铝尖晶石结构,使催化剂具有一定的硫转移活性。铈和镧的引入可有效提高活性,而磷的引入对活性无明显影响,温度升高可显著提高二氧化硫的氧化速率,氧含量为零时硫转移活性很低。
The ultrastable zeolite Y fluid catalytic cracking catalyst was modified by MgO for changing the matrix structure to improve the performance of sulfur transfer. The effect of different conditions and introduction of cerium, lanthanum, phosphor on sulfur transfer was investigated. The result showed that the out-layer Mg-Al spinel was formed on the matrix by modification to bring the catalyst the activity of sulfur transfer. The sulfur transfer activity wasn't efficiently improved by introduction of phosphor but by introduction of cerium and lanthanum. As the reaction temperature raised, SO_2 oxidation greatly (increased.) When there is no oxygen existed, the sulfur transfer activity is very low.