کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6657217 | 461677 | 2014 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Cobalt and iron supported on carbon nanofibers as catalysts for Fischer-Tropsch synthesis
ترجمه فارسی عنوان
کبالت و آهن بر روی نانوبلورهای کربن به عنوان کاتالیزورهای سنتز فیشر-تروپش حمایت می شوند
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کلمات کلیدی
فیشر تروپس، نانو فیبر کربن، کبالت، اهن، کاتالیزورهای دو فلزی،
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
مهندسی شیمی (عمومی)
چکیده انگلیسی
Cobalt and/or iron supported on carbon nanofibers were prepared and used as monometallic or bimetallic catalysts for Fischer-Tropsch synthesis at 523Â K and 20Â bar. Catalysts were characterized by ICP, N2 adsorption-desorption, TPR, XRD and XPS. Characterization results revealed that cobalt and iron had a synergetic effect: cobalt particles were better dispersed in presence of iron, and the latter was reduced to Fe0 in a higher extent due to the presence of the former. Catalytic results revealed that cobalt content played an important role in the catalytic conversion of CO. This way, the higher the content in cobalt, the higher the CO conversions were observed. Thus, sample 15Co/CNF presented the highest CO conversion. However, the presence of iron in bimetallic catalysts avoided an excessive production of CH4. The bimetallic sample with the highest Co loading (10Co5Fe/CNF) was the most active catalyst for the FTS reaction, because it led to the highest yield of long-chained hydrocarbons.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Fuel Processing Technology - Volume 128, December 2014, Pages 417-424
Journal: Fuel Processing Technology - Volume 128, December 2014, Pages 417-424
نویسندگان
José Antonio DÃaz, Hasti Akhavan, Amaya Romero, Alba MarÃa Garcia-Minguillan, Rubà Romero, A. Giroir-Fendler, Jose Luis Valverde,