Flow Characteristics in Cocurrent Upflow Bubble Column Dispersed with Micro-Bubbles
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概要
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The flow characteristics and decomposition performance in the cocurrent upflow bubble column dispersed with micro-bubbles were experimentally examined. A micro-bubble generator was installed at the bottom of the column, and for comparison the sintered glass gas sparger was set at the lower part of the column.When milli-bubbles coexist with dispersed micro-bubbles, micro-bubbles disappear. This is considered because micro-bubbles are absorbed into the wake of milli-bubbles. The volumetric mass transfer coefficient is higher for micro-bubbles than for milli-bubbles, but the mass transfer coefficient is much lower for the former than for the latter. The apparent decomposition rate constant strongly depends on the volumetric coefficient. When the volumetric coefficient is higher, the rate constant of micro-bubbles is higher than that of milli-bubbles.
- 社団法人 化学工学会の論文
- 2008-07-01
著者
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中村 正秋
Department Of Chemical Engineering Nagoya University
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NAKAMURA Masaaki
Department of Biomaterials, Osaka Dental University
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YOSHIMATSU Takashi
Department of Chest Surgery, Kitakyushu Municipal Medical Center
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Bando Y
Department Of Chemical Engineering Nagoya University
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Bando Yoshiyuki
Department Of Applied Chemistry Gifu University
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LUO Wenji
Department of Chemical Engineering, Nagoya University
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WANG Yufei
Department of Chemical Engineering, Nagoya University
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YASUDA Keiji
Department of Chemical Engineering, Nagoya University
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FUNATO Yasuhiro
Nagoya Oshima Machinery Co., Ltd.
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OSHIMA Masataka
Nagoya Oshima Machinery Co., Ltd.
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Nakamura Masaaki
Department Of Chemical Engineering Nagoya University
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Tanaka Yoshikazu
Department Of Chemical Engineering Nagoya University
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Yoshimatsu Takashi
Department Of Chest Surgery Kitakyushu Municipal Medical Center
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Bando Y
Nagoya Univ. Nagoya Jpn
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Luo Wenji
Department Of Chemical Engineering Nagoya University
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Wang Yufei
Department Of Chemical Engineering Nagoya University
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Yasuda K
Department Of Chemical Engineering Nagoya University
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Oshima Masataka
Nagoya Oshima Machinery Co. Ltd.
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Yasuda Keiji
Department Of Chemical Engineering Graduate School Of Engineering Nagoya University
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Funato Yasuhiro
Nagoya Oshima Machinery Co. Ltd.
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Nakamura Masaaki
Department Of Biomaterials Osaka Dental University
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Nakamura Masaaki
Department Of Applied Physics Faculty Of Science Tokyo University Of Science
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