化工进展2017，Vol.36Issue(z1)：235-240,6.DOI:10.16085/j.issn.1000-6613.2017-0858
制备方法对含硅氧化铝载体性质的影响
Influence of preparation methods on the physical and chemical properties of silicon-containingγ-Al2O3 support
王敏朵 1曾双亲 1贾燕子 1杨清河1
作者信息
- 1. 中国石化石油化工科学研究院,北京100083
- 折叠
摘要
Abstract
The silicon-containing alumina support has been widely used in the field of hydrogenation catalysts because it possess the mutual advantage of SiO2 and Al2 O3.In other words,it exhibits better structural properties,mechanical properties and suitable surface acidity.In this paper,the preparation of silicon-containing γ-Al2 O3 catalyst support were introduced in detail, including sol-gel method, NaAlO2-Al2 (SO4 )3 method,kneading method,impregnation and chemical vapor deposition.The effect of preparation method on the pore structure and acidity are discussed.γ-Al2 O3 catalyst support synthesized by sol-gel method has high chemical purity and exhibits excellent physicochemical properties.The influence mechanism of physicochemical properties of silicon-containing alumina synthesized by different methods is analyzed.It is conducive to turn the pore structure by instructing silicon into alumina in bulk,whereas silicon exposure to the sub-surface or surface facilitates turning the acidity of support.The problems in the current research and the development trend of silicon-containing alumina are proposed.关键词
含硅氧化铝/载体/制备方法/孔结构/酸性Key words
silicon-containingγ-Al2O3/support/preparation/pore structure/acidity分类
化学化工引用本文复制引用
王敏朵,曾双亲,贾燕子,杨清河..制备方法对含硅氧化铝载体性质的影响[J].化工进展,2017,36(z1):235-240,6.
