کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10239043 | 46021 | 2005 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Fischer-Tropsch synthesis: Water effects on Co supported on narrow and wide-pore silica
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
کاتالیزور
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چکیده انگلیسی
The effect of water on the performance of narrow and wide-pore silica-supported cobalt catalysts was investigated during Fischer-Tropsch synthesis in a continuously stirred tank reactor (CSTR). In these studies the added water replaced an equivalent amount of inert gas so that all other reaction conditions remained the same before, during and after water addition. A low cobalt loading of 12.4Â wt.% on wide-pore silica exhibited a beneficial effect on CO conversion with the addition of water up to 25Â vol.% of the total feed. In contrast, the addition of up to 20Â vol.% water to a 20Â wt.% Co on narrow- or wide-pore silica did not significantly alter the CO conversion. It appears that the CO conversion mainly increases when cobalt clusters are small enough to fit inside the silica pores.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Catalysis A: General - Volume 289, Issue 2, 10 August 2005, Pages 135-142
Journal: Applied Catalysis A: General - Volume 289, Issue 2, 10 August 2005, Pages 135-142
نویسندگان
Ajay K. Dalai, Tapan K. Das, Karuna V. Chaudhari, Gary Jacobs, Burtron H. Davis,