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Preparation and performance of V-MCM-41/cordierite catalyst modified with W,Mn and Ce for DeNOx

Cheng Xiang-chun

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Abstract

The cordierite honeycomb ceramics (CC) was coated with molecular sieve MCM-41 and V by coating method. A series of monolith catalysts were prepared by adding the addtives W,Mn and Ce. The influence of the addtives on the properties of the catalysts for the selective catalytic reduction (SCR) of NO by urea was investigated. The results showed that the SCR performance of the catalysts was improved with the introduction of W, Mn and Ce. V-W-Mn-Ce-MCM41/CC catalyst exhibited the optimal NO removalefficiency at (300-600)℃ due to the suitable acidity of the catalyst surface and the existence of amorphous active components.

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What this paper is about

The cordierite honeycomb ceramics (CC) was coated with molecular sieve MCM-41 and V by coating method. A series of monolith catalysts were prepared by adding the addtives W,Mn and Ce. The influence of the addtives on the properties of the catalysts for the selective catalytic reduction (SCR) of NO by urea was investigated. The results showed that the SCR performance of the catalysts was improved with the introduction of W, Mn and Ce. V-W-Mn-Ce-MCM41/CC catalyst exhibited the optimal NO removalefficiency at (300-600)℃ due to the suitable acidity of the catalyst surface and the existence of amorphous active components.

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Available abstract

The cordierite honeycomb ceramics (CC) was coated with molecular sieve MCM-41 and V by coating method. A series of monolith catalysts were prepared by adding the addtives W,Mn and Ce. The influence of the addtives on the properties of the catalysts for the selective catalytic reduction (SCR) of NO by urea was investigated. The results showed that the SCR performance of the catalysts was improved with the introduction of W, Mn and Ce. V-W-Mn-Ce-MCM41/CC catalyst exhibited the optimal NO removalefficiency at (300-600)℃ due to the suitable acidity of the catalyst surface and the existence of amorphous active components.

Key concepts: Cordierite, Catalysis, Monolith, Molecular sieve, Chemical engineering, Materials science, Selective catalytic reduction, Amorphous solid

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Preparation and performance of V-MCM-41/cordierite catalyst modified with W,Mn and Ce for DeNOx — Research Paper | ScholarLens