CH4 production from H2 and CO2 byMethanobacterium thermoautotrophicum cells fixed on hollow fibers |
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Authors: | Hae Sung Jee Naomichi Nishio Shiro Nagai |
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Affiliation: | (1) Department of Fermentation Technology, Faculty of Engineering, Hiroshima University, Saijo-cho, 724 Higashi-Hiroshima, Japan |
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Abstract: | Summary Methane was produced from H2 and CO2 byMethanobacteriumthermoautotrophicum cells fixed on the surface of hollow fibers. The mineral solution permeated through the inside of fibers was consumed by the cells, while the gaseous substrate flowing outside the fibers was directly metabolized to methane. Methane production was proportional to hollow fiber length i.e., contact area between cell layer and gas phase. In repeated batch cultures, the production rates of methane and cell mass were 33.1 L/L reactor/day and 1.75 g cells/L reactor/day, respectively with 90% conversion rate. |
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