化工进展Issue(2)：506-512,7.DOI:10.16085/j.issn.1000-6613.2016.02.024
负载Pt的分子筛催化剂研究进展
Advances in Pt-loading zeolite catalysts
摘要
Abstract
Advances of Pt/zeolite catalysts were reviewed,mainly on the influence of Pt loading, additives,Pt precursors and pretreating conditions on catalysts’ performance. The dispersion of Pt has a significant impact on the catalytic properties of zeolite and can be improved by the following methods. First,introducing Ce,Cr,Re,Sn and other metals by co-impregnation method can effectively improve the particle size distribution of Pt. Adding citric acid or ethylenediamine tetraacetic acid as a competitive adsorbent in the impregnating solution may also improve the Pt dispersion and reducing the heating rate during the calcination process can effectively reduce Pt particle aggregation. In addition,multiple impregnation of Pt with low concentration and calcination under oxygen atmosphere can also improve the Pt dispersion. Catalysts impregnated with different Pt precursors also have different Pt particle size distribution. The requirements of Pt/zeolite catalysts for different reactions are different,which needs further researches for specific reactions.关键词
分子筛/加氢/粒度分布Key words
zeolite/hydrogenation/particle size distribution分类
资源环境引用本文复制引用
高娜,张成喜,李永祥..负载Pt的分子筛催化剂研究进展[J].化工进展,2016,(2):506-512,7.基金项目
中国石油化工股份有限公司项目（114026，114039）。 （）
