کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10244618 | 47696 | 2005 | 10 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Catalytic activity of synthetic saponite clays: effects of tetrahedral and octahedral composition
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
کاتالیزور
پیش نمایش صفحه اول مقاله
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چکیده انگلیسی
This paper describes the catalytic characteristics of synthetic saponites with well-known chemical composition, thermal stability, and acidity in three catalytic reactions: (1) catalytic cracking of n-dodecane, (2) hydro-isomerisation of n-heptane, and (3) Friedel-Crafts alkylation of benzene. Saponites with Mg in the octahedral position were by far the best catalysts for the catalytic cracking of n-dodecane, which can be explained by the higher surface area of these saponites compared with saponites with other compositions. All saponites performed better in the hydro-isomerisation reaction of n-heptane and Friedel-Crafts alkylation compared with commercially available catalysts such as HZSM-5 and ASA. The shape selectivity in the Friedel-Crafts alkylation of benzene for p- and o-DIOPB was remarkably high for the synthetic saponites.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Catalysis - Volume 231, Issue 2, 25 April 2005, Pages 443-452
Journal: Journal of Catalysis - Volume 231, Issue 2, 25 April 2005, Pages 443-452
نویسندگان
R.J.M.J. Vogels, J.T. Kloprogge, J.W. Geus,