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http://dx.doi.org/10.9726/kspse.2016.20.4.069

The De-CH4 Characteristics of NGOC for CH4 Reduction of a CNG Bus  

Seo, Choong-Kil (Department of Automotive & Mechanical Engineering, Howon University)
Choi, Byung-Chul (School of Mechanical Systems Engineering, Chonnam National University)
Publication Information
Journal of Power System Engineering / v.20, no.4, 2016 , pp. 69-74 More about this Journal
Abstract
Recently, in order to meet the stricter emission regulations, the proportion of after-treatments for vehicle and vessel is increasing gradually. The purpose of this study is to investigate the de-$CH_4$ characteristics of NGOC in front of proposed combined system according to additive catalyst and support ratio. In the case of Pd addition, the de-$CH_4$ performance of 2Pt-2Pd-3MgO/$Al_2O_3$ NGOC was improved by approximately 10 to 20% for the HC components. The de-$CH_4$ performance of 2Pt-2Pd-3Cr-3MgO/$Al_2O_3$ NGOC was higher compared to five kinds of NGOC catalysts, because Cr particle was smaller and dispersion of Pd was increased. The NGOC(Zeolite:$Al_2O_3$(80%:20%)｝catalyst according to support ratio, was improved performance at low temperature region on CO and NO conversion rate.
Keywords
CNG; Catalyst; Methane; NOx; Cr; Zeolite;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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