کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1197227 | 1492965 | 2015 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Synthesis of zirconium and cerium over HZSM-5 catalysts for light olefins production from naphtha
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آنالیزی یا شیمی تجزیه
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Synthesis of zirconium and cerium over HZSM-5 catalysts for light olefins production from naphtha Synthesis of zirconium and cerium over HZSM-5 catalysts for light olefins production from naphtha](/preview/png/1197227.png)
چکیده انگلیسی
HZSM-5 samples modified with Ce and Zr, separately and simultaneously, were prepared for naphtha catalytic cracking at 650 °C and 700 °C. The physicochemical features of parent and modified catalysts were characterized by SEM, XRD, BET, and NH3-TPD. Separate loading of Ce and Zr increased the number of acid sites which was favorable for light olefins production. The maximum yields of ethylene (19.62 wt.%) and propylene (36.64 wt.%) were achieved over 8% Zr/HZSM-5 and 2% Zr/HZSM-5, respectively. Loading Ce and Zr, simultaneously, decreased the number of acid sites which caused a reduction of ethylene and propylene production.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Analytical and Applied Pyrolysis - Volume 112, March 2015, Pages 135–140
Journal: Journal of Analytical and Applied Pyrolysis - Volume 112, March 2015, Pages 135–140
نویسندگان
Forough Momayez, Jafar Towfighi Darian, Seyedeh Mahboobeh Teimouri Sendesi,