Document Details

Document Type : Article In Journal 
Document Title :
Selective Reduction of Nitrogen Oxides by Hydrocarbons on Hydrotalcite Co and Ni Catalysts
انتقائية تخفيض أكاسيد النتروجين من الهيدروكربونات في شركة Hydrotalcite والمحفزات ني
 
Subject : Selective Reduction of Nitrogen Oxides by Hydrocarbons on Hydrotalcite Co and Ni Catalysts 
Document Language : English 
Abstract : Hydrotalcitelike Co–Al and Ni–Al catalysts of different compositions (with the atomic ratio M2+/Al3+ = 0.5–3.0) were studied in the reaction of selective reduction of NO by propane, propylene, and ndecane in the presence of O2. The higher activity of the catalysts with M2+/Al3+ = 0.5 is connected with high dispersity of Ni or Co cations stabilized by a significant amount of Al3+ ions. Propylene was shown to be the most efficient reducing agent for nitrogen oxide. The highest degree of conversion to the extent of 90– 99% was attained at 400 and 420–440°C for Ni–Al and Co–Al samples, respectively. When propane and decane were used as reducing agents, the conversion of both catalysts was characterized by the volcano shaped dependence on temperature due to the fact that the catalyst took part in the concurrent reaction of hydrocarbon (reducing agent) oxidation. Hydrotalcitelike materials are promising representatives of inex pensive bi and multicomponent systems. The design strategy for new active catalysts for processes of purifi cation of gas exhausts from NOx, that are stable in the presence of water and sulfur oxides, may be based on usage of hydrotalcites with modified ions introduced into them. 
ISSN : 1319-0989 
Journal Name : Arts and Humanities Journal 
Volume : 2 
Issue Number : 1 
Publishing Year : 1431 AH
2010 AD 
Article Type : Article 
Added Date : Wednesday, February 9, 2011 

Researchers

Researcher Name (Arabic)Researcher Name (English)Researcher TypeDr GradeEmail
لاشيزار بتروفPetrov, Lashizar InvestigatorDoctorate 

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