کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10676995 | 1011925 | 2005 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Isomerization of cis-2-butene and trans-2-butene catalyzed by acid- and ion-exchanged smectite-type clays
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
علوم زمین و سیارات
ژئوشیمی و پترولوژی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Isomerization of cis-2-butene and trans-2-butene catalyzed by acid- and ion-exchanged smectite-type clays Isomerization of cis-2-butene and trans-2-butene catalyzed by acid- and ion-exchanged smectite-type clays](/preview/png/10676995.png)
چکیده انگلیسی
Two commercial acid-activated montmorillonites (F24 and F124) were exchanged with different cations (Al3+, Cr3+, Fe3+, and Ni2+). The catalytic activity of the acid- and the ion-exchanged clays was measured using the isomerization of cis- and trans-2-butene at 300 °C to yield the corresponding isomers. The order of activity for the acid- and the different cation-exchanged forms was: acid clays >Al3+âNi2+>Cr3+>Fe3+, which slightly correlated with the acidity values determined by cyclohexylamine desorption and the d001 spacing obtained from integral series of reflections. The maximum conversion for the isomerization of cis-2-butene was â75% for F24 and F124, while the maximum conversion for the isomerization of trans-2-butene was â53% for F24 and F124. Cracking produced propylene and methane and their amounts increased with the acidity.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Clay Science - Volume 29, Issue 2, April 2005, Pages 117-123
Journal: Applied Clay Science - Volume 29, Issue 2, April 2005, Pages 117-123
نویسندگان
Alexander Moronta, José Luengo, Yorge RamÃrez, Jackeline Quiñónez, Eduardo González, Jorge Sánchez,