工业催化
工業催化
공업최화
INDUSTRIAL CATALYSIS
2015年
8期
637-640
,共4页
催化剂工程%拟薄水铝石%黏温活化能%黏结性能
催化劑工程%擬薄水鋁石%黏溫活化能%黏結性能
최화제공정%의박수려석%점온활화능%점결성능
catalyst engineering%pseUdo bohemite%viscosity-temperatUre activation energy%bonding performance
拟薄水铝石溶胶是 FCC 催化剂双铝基黏结剂的重要组成部分，影响催化剂强度，然而按照目前质量指标生产的双铝基黏结剂存在黏结性能不稳定的问题。结合现有指标，认为缺少对拟薄水铝石胶溶过程的考察。而且 FCC 催化剂在制备过程中，从浆液到最终喷雾干燥升温过程明显，因此，通过新的表征方式对拟薄水铝石在胶溶过程和升温过程中的黏度变化，定义了新的参数黏温活化能。结果表明，黏温活化能可以较好反映拟薄水铝的胶溶状态。
擬薄水鋁石溶膠是 FCC 催化劑雙鋁基黏結劑的重要組成部分，影響催化劑彊度，然而按照目前質量指標生產的雙鋁基黏結劑存在黏結性能不穩定的問題。結閤現有指標，認為缺少對擬薄水鋁石膠溶過程的攷察。而且 FCC 催化劑在製備過程中，從漿液到最終噴霧榦燥升溫過程明顯，因此，通過新的錶徵方式對擬薄水鋁石在膠溶過程和升溫過程中的黏度變化，定義瞭新的參數黏溫活化能。結果錶明，黏溫活化能可以較好反映擬薄水鋁的膠溶狀態。
의박수려석용효시 FCC 최화제쌍려기점결제적중요조성부분，영향최화제강도，연이안조목전질량지표생산적쌍려기점결제존재점결성능불은정적문제。결합현유지표，인위결소대의박수려석효용과정적고찰。이차 FCC 최화제재제비과정중，종장액도최종분무간조승온과정명현，인차，통과신적표정방식대의박수려석재효용과정화승온과정중적점도변화，정의료신적삼수점온활화능。결과표명，점온활화능가이교호반영의박수려적효용상태。
The colloidal sol of pseUdo bohemite is an important part of the doUble alUminUm adhesive of FCC catalyst and affects the catalyst strength. According to the cUrrent qUality indicators,the properties of the doUble alUminUm adhesive performed instability. Combined with the existing indicators,it was consid-ered that the researches on the formation process of the colloidal sol of pseUdo bohemite was lack. DUring the preparation of FCC catalyst,there was a significant heating process from the slUrry to final spray drying process. Therefore,a new parameter viscosity-temperatUre activation energy was defined by Using the new techniqUes to characterize viscosity changes of pseUdo bohemite in colloidal sol formation process and the heating process. The experimental resUlts showed that the viscosity-temperatUre activation energy coUld reflect well the state of the colloidal sol of pseUdo bohemite.
