reducción catalítica de nox con pt soportado sobre zeolitas mfi modificadas con cu, co, fe, mn.

الاختزال الحفزي لـ NOx باستخدام Pt المحمَّل على زيوليتات MFI المعدلة بـ Cu وCo وFe وMn.

Clicks: 242
ID: 206129
2008
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Abstract
The selective catalytic reduction of NO by propane in the presence of excess oxygen has been studied over catalysts based on Pt supported on Fe-ZSM-5, Co-ZSM-5, Cu- ZSM-5 and MnZSM-5. Pure Pt based catalysts are highly active, but produce large amounts of N2O. The bimetallic catalyst was found to offer wider temperature window than that of monocatalysts, and show a synergistic effect by combining high stability and activity of Pt catalysts with the high N2 selectivity of Fe, Co, Cu, Mn supported on MFI catalysts.
تمت دراسة الاختزال التحفيزي الانتقائي لـ NO بواسطة البروبان في وجود فائض من الأكسجين على حفازات قائمة على البلاتين (Pt) المحمّل على Fe-ZSM-5 وCo-ZSM-5 وCu-ZSM-5 وMnZSM-5. وتُعدّ الحفازات القائمة على البلاتين النقي عالية النشاط، إلا أنها تُنتج كميات كبيرة من N2O. وقد تبيّن أن الحفاز ثنائي الفلز يوفر نافذة درجات حرارة أوسع من تلك الخاصة بالحفازات أحادية الفلز، كما يُظهر تأثيراً تآزرياً من خلال الجمع بين الاستقرارية والنشاط العاليين لحفازات البلاتين، والانتقائية العالية لـ N2 التي تتسم بها فلزات Fe وCo وCu وMn المحمّلة على حفازات MFI.
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briceo2008avancesreduccin Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Sarah Briceño, Héctor Del Castillo
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Journal drug testing and analysis
Year 2008
DOI
DOI not found
URL
http://saber.ula.ve/db/ssaber/Edocs/pubelectronicas/avancesenquimica/vol3num1/articulo3.pdf
Keywords
nitrogen oxides propane

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