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http://dx.doi.org/10.14579/MEMBRANE_JOURNAL.2014.24.3.213

Membrane Process Using Polysulfone Hollow Fiber Membranes for Vehicle Fuel Production from Bio-Methane Mixture  

Kim, Jee Sang (Green Chemistry and Environmental Biotechnology, Korea University of Science and Technology)
Kong, Chang In (Environment and Resources Research Center, Korea Research Institute of Chemical Technology)
Park, Bo Ryoung (Environment and Resources Research Center, Korea Research Institute of Chemical Technology)
Kim, Jeong-Hoon (Green Chemistry and Environmental Biotechnology, Korea University of Science and Technology)
Publication Information
Membrane Journal / v.24, no.3, 2014 , pp. 213-222 More about this Journal
Abstract
In this study, 2-stage recirculation membrane process was developed for purification of high purity bio-methane for the vehicle fuel application. Pure gas permeation and mixture gas permeation test were done as a function of methane content and pressure in the feed using polysulfone membrane modules. 2-stage membrane plant was designed, constructed in a food waste treatment cite. Dehumidification, dry desulfurization, and desiloxane plants are installed for the removal of $H_2O$, $H_2S$ and siloxane in the biogas. Permeation test were done with the pre-treated methane mixture in terms of methane purity and recovery by adjusting the ratio of membrane area (1:1, 1:3, 2:2) in the first and second membrane modules in the plant. When membrane area of 2 stage increased to $3m^2$ from $1m^2$ at 1-stage membrane area of $1m^2$, the feed rate and $CH_4$ recovery at 95% methane purity were increased from 47.1% to 92.5% respectively. When the membrane area increased two-fold (1:1 to 2:2), $CH_4$ recovery increased from 47.1% to 88.3%. When the feed flow rate was increased, in 1:3 ratio, final purity of the methane is reduced, the methane recovery is increased. When operating pressure was increased, the feed rate was increased and recovery was slightly decreased. From this result, membrane area, feed pressure and feed rate could be the important factor to the performance of the membrane process.
Keywords
biogas; polysulfone hollow fiber membrane; methane; 2-stage recirculation process;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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