Hydrogen permeability of the hollow fibers used in H<sub>2sub>-based membrane biofilm reactors
- 作者：Youneng Tang<sup>asup><sup> ; sup><sup>bsup><sup> ; sup><sup>tayone0916@gmail.comsup> ; Chen Zhou<sup>asup><sup> ; sup><sup>Chen.Zhou.2@asu.edusup> ; Steven W. Van Ginkel<sup>asup><sup> ; sup><sup>csup><sup> ; sup><sup>steppen@asu.edusup> ; Aura Ontiveros-Valencia<sup>asup><sup> ; sup><sup>avontive@asu.edusup> ; Junghun Shin<sup>asup><sup> ; sup><sup>dsup><sup> ; sup><sup>sjhoon3@yahoo.co.krsup> ; Bruce E. Rittmann<sup>asup><sup> ; sup><sup>Rittmann@asu.edusup>
- 关键词：Hydrogen permeability ; Membrane biofilm reactor ; Membrane material ; Membrane fouling
- 刊名：Journal of Membrane Science
- 出版年：2012
- 期刊代码：55_03767388
- 类别：ch
- 出版时间：15 July, 2012
- 卷：407-408
- 期：Complete
- 页码：176-183
- 文件大小：537 K
摘要
We developed and used steady-state permeation tests and a mathematical model to determine the H<sub>2sub> permeabilities of three hollow fibers (composite, polyester, and polypropylene) commonly used in the H<sub>2sub>-based membrane biofilm reactor (MBfR). The H<sub>2sub> permeabilities spanned a wide range: 1.6 脳 10<sup>鈭?sup>, 1.8 脳 10<sup>鈭?sup>, and 6.6 脳 10<sup>鈭?sup> m<sup>3sup> H<sub>2sub> @ standard temperature and pressure m membrane thickness/m<sup>2sup> hollow fiber surface area d bar for the composite, polypropylene, and polyester hollow fibers, respectively; this represents a ratio of the maximum H<sub>2sub> flux for composite:polypropylene:polyester hollow fibers = 32:3.3:1. The H<sub>2sub> permeabilities were then used to correlate hollow-fiber type to contaminant-removal flux in previous MBfR experiments. Only the experiments with composite hollow fibers were not routinely limited by H<sub>2sub> delivery, although fouling by mineral precipitates lowered the H<sub>2sub> flux in some cases. Since existing contaminant-removal data for the polyester hollow fibers were not adequate, we did special experiments to investigate the effect of H<sub>2sub> pressure on contaminant removal in the MBfR with the polyester hollow fibers. We confirmed that this hollow fiber was operated at its maximum H<sub>2sub>-delivery capacity based on its H<sub>2sub> permeability.