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Investigation on CO Adsorption and Catalytic Oxidation of Commercial Impregnated Activated Carbons  

Ko, Sangwon (Eco-Transport Research Division, Korea Railroad Research Institute)
Kim, Dae Han (Department of Chemistry, Sungkyunkwan University)
Kim, Young Dok (Department of Chemistry, Sungkyunkwan University)
Park, Duckshin (Eco-Transport Research Division, Korea Railroad Research Institute)
Jeong, Wootae (Eco-Transport Research Division, Korea Railroad Research Institute)
Lee, Duck Hee (Eco-Transport Research Division, Korea Railroad Research Institute)
Lee, Jae-Young (Eco-Transport Research Division, Korea Railroad Research Institute)
Kwon, Soon-Bark (Eco-Transport Research Division, Korea Railroad Research Institute)
Publication Information
Applied Chemistry for Engineering / v.24, no.5, 2013 , pp. 513-517 More about this Journal
Abstract
We investigated the properties of impregnated activated carbons, a commercial adsorbent for the individual protection equipment, and examined CO adsorption and oxidation to $CO_2$. The surface area, pore volume and pore size were measured for four commercial samples using Brunauer-Emmett-Teller/Barrett-Joyner-Halenda (BET/BJH), and atomic compositions of the sample surface were analyzed based on SEM/EDS and XPS. Impregnated activated carbons containing Mn and Cu for fire showed the catalytic CO oxidation to $CO_2$ with a high catalytic activity (up to 99% $CO_2$ yield), followed by the CO adsorption at an initial reaction time. On the other hand, C: for chemical biologial and radiological (CBR) samples, not including Mn, showed a lower CO conversion to $CO_2$ (up to 60% yield) compared to that of fire samples. It was also found that a heat-treated activated carbon has a higher removal capacity both for CO and $CO_2$ at room temperature than that of untreated carbon, which was probably due to the impurity removal in pores resulted in a detection-delay about 30 min.
Keywords
activated carbon; carbon monoxide; catalytic oxidation; copper; manganese;
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