Characteristics of Wet-Gas Absorption System with Clean Water

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  • Inoue Masanori
    Department of Chemical Engineering, Graduate School of Engineering, Tohoku University
  • Aoki Hideyuki
    Department of Chemical Engineering, Graduate School of Engineering, Tohoku University
  • Gomi Hiroshi
    Research & Development Center, Takasago Thermal Engineering Co., Ltd.
  • Miura Takatoshi
    Department of Chemical Engineering, Graduate School of Engineering, Tohoku University

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Other Title
  • 清浄水を用いた気液接触ガス吸収装置の特性解析
  • セイジョウスイ オ モチイタ キエキ セッショク ガス キュウシュウ ソウチ ノ トクセイ カイセキ

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Abstract

Characteristics of wet-gas absorption system with clean water was studied by experimental method. The system was composed of hollow cone type spray nozzles and special eliminator with hydrophilic walls. These nozzles were placed 200mm apart in rectangular duct. The clean water was supplied to the spray nozzles and eliminator. Absorption of NH_3 and SO_2 was measured on various conditions. It has become obvious that the estimation of gas absorption efficiency is possible by pH value in aqueous phase at the exit of the wet-gas absorption system. The special eliminator was constructed of layers of corrugated channels. Characteristics of friction factors and mass transfer of the eliminator were also investigated for different two shapes of the corrugated channel. Gas phase mass transfer characteristics of the eliminator was measured about the Reynolds number range between 1000 and 7000. The Reynolds number dependence on the friction factor is very little change and average Sherwood number for these eliminators is proportional to Re^<0.75>.

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