Zibo XiangRun Environment Engineering Co., Ltd.
It was used as an alumina catalyst and alumina catalyst carrier for its special structure and excellent performance, so that in many areas of catalysis, particularly catalytic conversion processes of petroleum choose alumina catalyst. In recent years, due to the development of heavy oil processing technology for processing, the alumina catalyst carrier also is proposed some new requirements. For example, slag demetallized oil hydrodesulfurization and dematalization demand the good surface area, a certain distribution of the large and small pore; Hydrodesulfurization catalyst requires a surface area of high & uniformly loading high metal, large pore volume and an appropriate proportion of the hole structure, and focus of the hole. But how to get such a good performance and practical value of the alumina support, few studies reported in this paper. The pore structure of alumina depends on its predecessor-boehmite, the size of the particle size and aggregation state. Therefore, to obtain the relative concentration of alumina carrier, the pore if intended boehmite particles must be uniform.
γ-Al2O3 is the most widely used industrial catalyst support/catalyst carrier. For Preparation of γ-Al2O3, the usual method is to take pre-emptive intended boehmite (or pseudoboehmite) and then at a certain temperature calcining is converted to γ-Al2O3
