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用KVO3作活性组分,用不同载体采用浸渍法制备出一系列KVO3/载体催化剂.在连续性微反活性评价装置上,以正戊烷为原料,对空白载体和催化剂分别进行了活性考察.结果表明,催化剂均比相应的空白载体具有高得多的活性,这说明KVO3是比较理想的活性组分.活性数据和物相分析表明,载体中含有ZrO2和CaAl4O7对催化剂的活性比较有利.而含有La2O3的高铝水泥物相对催化裂解的活性有不利影响,董青石(MgO·Al2O3·SiO2)不宜作为该类催化剂的载体.
With KVO3 as the active component, a series of KVO3 / supported catalysts were prepared by impregnation with different supports. On the continuous micro-activity evaluation device, n-pentane was used as the raw material to investigate the activity of blank carrier and catalyst respectively. The results show that the catalyst has a much higher activity than the corresponding blank carrier, indicating that KVO3 is an ideal active component. Activity data and phase analysis showed that the carrier containing ZrO2 and CaAl4O7 catalyst activity is more favorable. However, the high alumina cement containing La2O3 has an adverse effect on the activity of catalytic cracking, and therefore, it is not appropriate for the titania to be used as a support for the catalyst.