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
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی کاتالیزور
پیش نمایش صفحه اول مقاله
Direct synthesis of a 9×109×10 member ring zeolite (Al-ITQ-13): A highly shape-selective catalyst for catalytic cracking
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
نویسندگان
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