کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
9610302 47178 2005 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Investigation of CoNiMo/Al2O3 catalysts: Relationship between H2S adsorption and HDS activity
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی کاتالیزور
پیش نمایش صفحه اول مقاله
Investigation of CoNiMo/Al2O3 catalysts: Relationship between H2S adsorption and HDS activity
چکیده انگلیسی
Sulfidation of trimetallic CoNiMo/Al2O3 catalysts was studied by thermogravimetry at 400 °C under flow and pressure conditions. Results were compared with those obtained on prepared and industrial CoMo/Al2O3 and NiMo/Al2O3 catalysts. The amount of sorbed H2S on the sulfided solids was measured at 300 °C in the H2S pressure range 0-3.5 MPa at constant H2 pressure (3.8 MPa). The adsorption isotherms were simulated using a model featuring dissociated adsorption of H2S on supported metal sulfides and bare alumina. The amount of sulfur-vacancy sites could thus be determined under conditions close to industrial practice. A relationship with activity results for thiophene HDS and benzene hydrogenation was sought for.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Catalysis Today - Volume 106, Issues 1–4, 15 October 2005, Pages 238-242
نویسندگان
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