No.22 ゲル骨格補強法による非晶質シリカ-アルミナの調製と接触分解特性の解析(研究発表)

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The gel skeletal reinforcement to prepare mesopore with large pore diameter and pore volume was developed by the reaction of silica aerogel with TEOS. The pore diameter and pore volume of silica calcined at 600℃ reached 30nm and 3.1 cm^3/g, respectively, in the N_2 adsorption measurement by the BJH method, indicating that most of pores for this silica consisted of mesopores. Silica-aluminas with the same pore size distribution were also prepared using ASB. The catalytic performance for catalytic cracking of n-dodecane was investigated at 500℃. The mixed catalyst derived from beta-zeolite and silica-alumina with large mesopore exhibited not only the comparable activity to that for single use zeolite but also the linear relationship between the formation of branched products and the pore size.
2011-10-27