Profit optimization for bio-gas upgrading PSA process based on controlling step-time
Seungnam Kima, Jinkyung Kimb and Il Moona, aDepartment of chemical and biomolecular Engineering, Yonsei University, Seoul, 120-749, Korea, bDepartment of Chemical Engineering, Changwon National University, Changwon, Kyungnam, 641-773, Korea
Abstract
High purity methane gas from bio-gas has been magnified as an alternative source of energy recently. Gas above 95% purity can be used as fuel for transportation, however only gas above 97% purity can be distributed via pipe lines for domestic usage. Price of 97% purity gas for domestic gas is much higher than 95% purity gas that is used only for transportation, however recovery of methane gas in the process is ...
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