کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
6455604 1419756 2017 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Combined quantitative FTIR and online GC study of Fischer-Tropsch catalysts
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی کاتالیزور
پیش نمایش صفحه اول مقاله
Combined quantitative FTIR and online GC study of Fischer-Tropsch catalysts
چکیده انگلیسی


- Combined quantitative FTIR and on-line GC analysis of Fischer-Tropsch catalysts.
- Various reaction conditions and Fischer-Tropsch active metals investigated.
- Spectroscopically observed species ascribed to adsorbed reaction products.
- Species located on γ-alumina support are thought to be oxygenated products.
- Spectroscopically observed species do not directly link to reaction products.

A method for the quantification of the chain length of surface hydrocarbon species on Fischer-Tropsch catalysts by in-situ FTIR was combined with online gas chromatography in order to investigate any potential relationship between adsorbed hydrocarbons species and those detected as reaction products. By varying the reaction conditions and the active metal, changes to the chain lengths of surface species and the product distribution were monitored. Results show that the species observed spectroscopically are predominantly adsorbed reaction products which do not directly relate to the detected reaction products. Hydrocarbon species which can be transported to the support material (γ-alumina) may be ascribed to oxygenated products which are not produced in detectable amounts by GC at low conversion but are selectively adsorbed from the gas phase.

71

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Catalysis - Volume 353, September 2017, Pages 295-304
نویسندگان
, , , ,