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Anaerobic Digester Gas Purification for the Fuel Gas of the Fuel Cell  

Lee, Jong-Gyu (Environmental & Energy Research Center, Research Institute Science & Technology)
Jun, Jae-Ho (Fuel Cell Research Center, Research Institute Science & Technology)
Park, Kyu-Ho (POSMEC)
Choi, Doo-Sung (POSCOPOWER)
Park, Jae-Young (POSCOPOWER)
Publication Information
Transactions of the Korean hydrogen and new energy society / v.18, no.2, 2007 , pp. 164-170 More about this Journal
Abstract
The Tancheon wastewater treatment plant(WWTP) in Seoul using anaerobic digestion to reduce the outlet sludge produces anaerobic digester gas which contains 65% $CH_4$ and 35% $CO_2$. The gas purification equipment was installed and operated to use Anaerobic Digester Gas(ADG) as a fuel for molten carbonate fuel cell(MCFC). The processes consist of the desulfurizer and the adsorption tower to remove $H_2S$ and siloxane in the gas. The gas purification equipment removed virtually over 95% of $H_2S$ and over 99% of siloxane. Results has demonstrated that the fuel cell can produce electrical output and hot water with negligible air emissions of CO, NOx and $SO_2$. The site provides the first opportunity in Korea for demonstrating Molten carbonate fuel cell(MCFC) which the digester gas was applied to the fuel gas.
Keywords
biogas; anaerobic digester gas; molten carbonate fuel cell; hydrogen sulfide; siloxane; gas purification;
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