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http://dx.doi.org/10.9713/kcer.2016.54.5.671

Kinetics of Nitric Oxide Reduction with Alkali Metal and Alkali Earth Metal Impregnated Bamboo Activated Carbon  

Bak, Young-Cheol (Department of Chemical Engineering / Engineering Research Institute, Gyeongsang National University)
Choi, Joo-Hong (Department of Chemical Engineering / Engineering Research Institute, Gyeongsang National University)
Publication Information
Korean Chemical Engineering Research / v.54, no.5, 2016 , pp. 671-677 More about this Journal
Abstract
The impregnated alkali metal (Na, K), and the alkali earth metal (Ca, Mg) activated carbons were produced from the bamboo activated carbon by soaking method of alkali metals and alkali earth metals solution. The carbonization and activation of raw material was conducted at $900^{\circ}C$. The specific surface area and the pore size distribution of the prepared activated carbons were measured. Also, NO and activated carbon reaction were conducted in a thermogravimetric analyzer in order to use for de-NOx agents of the used activated carbon. Carbon-NO reactions were carried out in the nonisothermal condition (the reaction temperature $20{\sim}850^{\circ}C$, NO 1 kPa) and the isothermal condition (the reaction temperature 600, 650, 700, 750, 800, $850^{\circ}C$, NO 0.1~1.8 kPa). As results, the specific volume and the surface area of the impregnated alkali bamboo activated carbons were decreased with increasing amounts of the alkali. In the NO reaction, the reaction rate of the impregnated alkali bamboo activated carbons was promoted to compare with that of the bamboo activated carbon [BA] in the order of BA(Ca)> BA(Na)> BA(K)> BA(Mg) > BA. Measured the reaction orders of NO concentration and the activation energy were 0.76[BA], 0.63[BA(Na)], 0.77[BA(K)], 0.42[BA(Ca)], 0.30 [BA(Mg)], and 82.87 kJ/mol[BA], 37.85 kJ/mol[BA(Na)], 69.98 kJ/mol[BA(K)], 33.43 kJ/mol[BA(Ca)], 88.90 kJ/mol [BA(Mg)], respectively.
Keywords
Activated carbon; Bamboo activated carbon; Alkali metal impregnated; Na; K; Alkali earth metal; Ca; Mg; TGA; NO;
Citations & Related Records
Times Cited By KSCI : 5  (Citation Analysis)
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