کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
52778 | 46886 | 2009 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Liquid-phase dehydration of 1-phenylethanol over HZSM-5: Kinetic modeling
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
کاتالیزور
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
The liquid-phase dehydration of 1-phenylethanol over HZSM-5 zeolite (Si/Al = 20), at 353–373 K and using cyclohexane as solvent, was studied. Varying initial reactant concentration, a negative order respect to 1-phenylethanol was determined. In all cases, HZSM-5 resulted highly selective to styrene. Experimental data were fitted using LHHW-like kinetic models. Both physical and statistical criteria were applied to discriminate the best heterogeneous kinetic model. The most satisfactory fitting was obtained assuming that styrene is formed from 1-phenylethanol interacting simultaneously with two active sites. This mechanism explains the negative order respect to 1-phenylethanol.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Catalysis Communications - Volume 10, Issue 9, 25 April 2009, Pages 1339–1344
Journal: Catalysis Communications - Volume 10, Issue 9, 25 April 2009, Pages 1339–1344
نویسندگان
Nicolás M. Bertero, Carlos R. Apesteguía, Alberto J. Marchi,