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CO$_2$ Conversion to Methane using Bio-hydrogen  

Lee, Jun-Cheol (Graduate School of Energy and Environment, Seoul National University of Technology)
Kim, Jae-Hyung (Graduate School of Energy and Environment, Seoul National University of Technology)
Choi, Kwang-Keun (Central Research Center Green and Global In Tech Co. Ltd.)
Pak, Dae-Won (Graduate School of Energy and Environment, Seoul National University of Technology)
Publication Information
Journal of Korean Society of Environmental Engineers / v.30, no.9, 2008 , pp. 933-938 More about this Journal
Abstract
In the present study, carbon dioxide was converted to methane, using bio-hydrogen. Here, the bio-hydrogen was produced from organic waste. The anaerobic microorganism was cultured using only carbon dioxide and hydrogen for duration of 3 months. Therefore methane was not produced with acetogenotrophs. During methane production, carbon dioxide and hydrogen are taken in different ratios; among which 1 : 5 ratio has shown the highest methane yield. Carbon dioxide and hydrogen were introduced into the reactor at the rate of 8 mL/min and 40 mL/min, respectively. In this case, 92% of carbon dioxide was reduced and 2.2 m$^3$/m$^3$ day amount of methane was produced. Thus, the process has been successful in conversion of carbon dioxide into methane by purging it into methane fermentation reactor with bio-hydrogen using batch process.
Keywords
Carbon Dioxide; Bio-hydrogen; Methane;
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Times Cited By KSCI : 1  (Citation Analysis)
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