کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
63313 | 47680 | 2006 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Direct synthesis of a 9×109×10 member ring zeolite (Al-ITQ-13): A highly shape-selective catalyst for catalytic cracking
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
کاتالیزور
پیش نمایش صفحه اول مقاله

چکیده انگلیسی
A synthesis route for preparing ITQ-13, a tridirectional medium-pore zeolite containing 9- and 10-member ring pores, has been found that allows the introduction of framework Al by direct synthesis. It has been shown that ITQ-13 can also be prepared in a fluoride-free media. The directly synthesized Al containing ITQ-13 sample presents acid sites as strong or even stronger than ZSM-5. The strong electric field gradient in ITQ-13 and the smaller pore dimensions are responsible for the strong acidity and shape selectivity that increases the production of propylene during the cracking of vacuum gasoil compared with ZSM-5.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Catalysis - Volume 238, Issue 1, 15 February 2006, Pages 79–87
Journal: Journal of Catalysis - Volume 238, Issue 1, 15 February 2006, Pages 79–87
نویسندگان
R. Castañeda, A. Corma, V. Fornés, J. Martínez-Triguero, S. Valencia,