کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
4762867 | 1422948 | 2017 | 37 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Combined poisoning effect of K+ and its counter-ion (Clâ or NO3â) on MnOx/TiO2 catalyst during the low temperature NH3-SCR of NO
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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: Combined poisoning effect of K+ and its counter-ion (Clâ or NO3â) on MnOx/TiO2 catalyst during the low temperature NH3-SCR of NO Combined poisoning effect of K+ and its counter-ion (Clâ or NO3â) on MnOx/TiO2 catalyst during the low temperature NH3-SCR of NO](/preview/png/4762867.png)
چکیده انگلیسی
Heterogeneous catalysts for the low temperature NH3-SCR of NOx can be strongly deactivated due to the accumulation of specific compounds deriving from an upstream desulphurization unit, such as a Sea Water Scrubber. In this work, we set out to investigate the specific role of K+ and of its counter-ion (Clâ or NO3â) on the combined poisoning effect induced on the catalytic features of a MnOx/TiO2 system. Poisoning of the catalyst was performed ex situ by impregnation with two target loadings of each K salt, followed by a mild thermal treatment at 250 °C, corresponding to the maximum operating temperature of the SCR system. Fresh and poisoned catalysts were characterized by means of ICP-MS, BET, H2-TPR, NH3-Adsorption, NH3-Temperature Programmed Desorption-Reaction and in situ DRIFT and the impact of poisoning was assessed and compared for the NH3-SCR of NO as well as for the NH3-SCO (Selective Catalytic Oxidation) reaction.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Chemical Engineering Journal - Volume 330, 15 December 2017, Pages 92-101
Journal: Chemical Engineering Journal - Volume 330, 15 December 2017, Pages 92-101
نویسندگان
Stefano Cimino, Giorgio Totarella, Miriam Tortorelli, Luciana Lisi,