کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9617834 | 49172 | 2005 | 10 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Thin ZSM-5 film catalysts on quartz and alumina supports
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
کاتالیزور
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Thin ZSM-5 film catalysts on quartz and alumina supports Thin ZSM-5 film catalysts on quartz and alumina supports](/preview/png/9617834.png)
چکیده انگلیسی
Alumina beads, quartz and soda glass were coated with ZSM-5 films using a seeding method. Films with a thickness of 150, 350, 800 and 2300Â nm were prepared. The catalysts were tested by para-xylene (pX) isomerization and triisopropylbenzene (TiPB) cracking. Model parameters, i.e. rate constants and diffusivities, were fitted to experimental results. The films on quartz glass were much more active for pX isomerization and for cracking of TiPB, which was also reflected by the model parameters. Low and zero rate constants for alumina and soda glass supported catalysts, respectively, were attributed to poisoning of the ZSM-5 film due to impurities in these supports. Larger diffusivity in quartz supported catalysts and thick films was attributed to more defects in the film.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Microporous and Mesoporous Materials - Volume 78, Issues 2â3, 1 March 2005, Pages 199-208
Journal: Microporous and Mesoporous Materials - Volume 78, Issues 2â3, 1 March 2005, Pages 199-208
نویسندگان
Olov Ãhrman, Jonas Hedlund, Velaphi Msimang, Klaus Möller,