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http://dx.doi.org/10.14478/ace.2019.1108

Effect of Colloidal Silica on Selective Catalytic Reduction (SCR) Catalyst Activity and Thermal Stability  

Cha, Jin-Sun (Material Technology Center, Korea Testing Laboratory)
Lee, Hyung Won (Wood Chemistry Division, Forest Products Department, National Institute of Forest Science)
Shin, Min-Chul (Material Technology Center, Korea Testing Laboratory)
Jeong, Bora (Green Materials & Processes Group, Ulsan Regional Division, Korea Institute of Industrial Technology)
Kim, Hong-Dae (Green Materials & Processes Group, Ulsan Regional Division, Korea Institute of Industrial Technology)
Publication Information
Applied Chemistry for Engineering / v.31, no.1, 2020 , pp. 61-66 More about this Journal
Abstract
In this study, the effect of characteristics of colloidal silica, which was used as an additive in the compression/coating catalyst process, on activities and thermal stabilities of the catalysts was investigated. The shape, size, specific surface area and porosity, and composition of four different types of colloidal silica materials were analyzed, and the NOx conversion of V2O5/TiO2 catalyst prepared by these colloidal silica were studied. Properties of the catalysts prepared by colloidal silica depend on the nature of the colloidal silica used, in particular the alkaline substances such as Na in the silica were evaluated to be directly effect on the deNOx conversion of the catalyst. In addition, higher silica contents in the colloidal silica were found to improve the deNOx activity and thermal stability of the catalyst.
Keywords
Colloidal silica; deNOx; SCR; $V_2O_5/TiO_2$; Thermal stability;
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Times Cited By KSCI : 2  (Citation Analysis)
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