کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
229279 | 464865 | 2009 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Effect of Cu content on the bifunctional Fischer–Tropsch Fe–Cu–K/ZSM5 catalyst
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Effect of Cu content on the bifunctional Fischer–Tropsch Fe–Cu–K/ZSM5 catalyst Effect of Cu content on the bifunctional Fischer–Tropsch Fe–Cu–K/ZSM5 catalyst](/preview/png/229279.png)
چکیده انگلیسی
A series of bifunctional 20Fe–Cu(x)–4K/ZSM5 (x = 0, 2, 4 and 6 wt.%) catalysts were prepared to elucidate the effect of Cu promoter on F–T synthesis functionality. The catalysts were characterized by nitrogen adsorption, X-ray diffraction, temperature-programmed reduction, thermal analysis and temperature-programmed desorption of NH3. Although addition of Cu essentially increases the initial activity, its effect is not significant at steady-state reaction. At 2 wt.%Cu loading, the homogeneous mixing of Fe and Cu oxides results in iron carbide formation, however, beyond this loading phase segregation occurs and eventually decreases the reducibility and acid site density, as reflected in the activity and selectivity.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Industrial and Engineering Chemistry - Volume 15, Issue 6, 25 November 2009, Pages 798–802
Journal: Journal of Industrial and Engineering Chemistry - Volume 15, Issue 6, 25 November 2009, Pages 798–802
نویسندگان
Jong Wook Bae, Seon-Ju Park, Suk-Hwan Kang, Yun-Jo Lee, Ki-Won Jun, Young-Woo Rhee,