Computation Transport Phenomena in Chemical Engineering. A Simulation Study of Gas Transfer in the Grid Zone of a Jetting Fluidized Bed.

• Luo Chun-Hua

  Department of Industrial Chemistry, Seikei University

• Uemiya Shigeyuki

  Department of Industrial Chemistry, Seikei University

• Kojima Toshinori

  Department of Industrial Chemistry, Seikei University

Bibliographic Information

Other Title

• 流れの数値解析と化学装置のモデリング　　ジェッティング流動層内グリッド領域でのガス移動のシミュレーション
• ジェッティング リュウドウソウナイ グリッド リョウイキ デ ノ ガス イドウ

Abstract

A mathematical model is developed to describe the gas transfer in the grid zone of a jetting fluidized bed. The model treats the mass exchange coefficient as a fitting parameter, and is used to calculate the concentration distribution of gaseous species. The results are compared with the experimental results measured in a bench-scale jetting fluidized bed at high temperature using inert He gas as a tracer. The experiments were carried out by varying gas velocity from the nozzle and bed temperature. The gas flow rate from the distributor was kept at the minimum fluidization level. Based on experimental results published in literature, a correlation for gas exchange coefficient is proposed. The prediction coincides with the experimental results when gas percolation from jet to annulus is taken into account in the model.

Journal

• KAGAKU KOGAKU RONBUNSHU

  KAGAKU KOGAKU RONBUNSHU 23 (6), 820-827, 1997

  The Society of Chemical Engineers, Japan

Keywords

• Fluidized Bed
• Jet
• Grid Zone
• Tracer Gas
• Mass Transfer Coefficient

Details

• CRID: 1390001204508625920
• NII Article ID: 10002768316
• NII Book ID: AN00037234
• DOI: 10.1252/kakoronbunshu.23.820
• ISSN: 13499203
• ISSN: 0386216X
• NDL BIB ID: 4334854
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I4334854
• Web Site: http://www.jstage.jst.go.jp/article/kakoronbunshu1975/23/6/23_6_820/_pdf
• Text Lang: ja
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• Abstract License Flag: Disallowed