کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
75754 | 49122 | 2008 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Dealumination of mordenites with acetic acid and their catalytic activity in the alkylation of cumene
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
کاتالیزور
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چکیده انگلیسی
A mordenite (MOR) zeolite (Si/Al = 5) was treated with acetic acid to reduce acid site concentration without a significant change in its pore structure. The acid-treated MOR zeolites employed in the alkylation of cumene with 2-propanol showed longer catalyst life with retaining similar level of para-selectivity. The slight enlargement of micropores of MOR zeolite due to the acid treatment did not lower the para-selectivity, while the reduction of acid site concentration improved the stability of MOR zeolite by suppressing carbon deposit. The catalytic performance of the acid-treated MOR zeolites was discussed relating to their pore size distributions and acidities.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Microporous and Mesoporous Materials - Volume 111, Issues 1–3, 15 April 2008, Pages 544–550
Journal: Microporous and Mesoporous Materials - Volume 111, Issues 1–3, 15 April 2008, Pages 544–550
نویسندگان
Kyong-Hwan Chung,