Dynamic Analysis of Diffusion and Convective Flows of Gases in Calcined Limestone Pellets

この論文にアクセスする

この論文をさがす

著者

抄録

In this study, dynamic analysis of diffusion and convective flows in the pores of calcined limestone pellets, which are used for the removal of acidic gases from flue gases, has been studied using the single pellet moment technique. Experiments have been conducted in a diffusion cell by using nitrogen gas (carrier) flowing through both faces of the pellet. Prior to the diffusion experiments limestone powders were calcined in an atmosphere of N<SUB>2</SUB> at 800°C. Effective diffusivity of helium has been determined by giving a pulse of helium to the upper face of the calcined limestone pellet and by comparing the response peak on the lower face of the pellet with theoretical expressions. The values of effective diffusivities increased with increasing temperature and pellet porosity. Convective flow contribution to the diffusion flux was found to increase with the increase of pressure drop across the pellet.

収録刊行物

  • Journal of chemical engineering of Japan  

    Journal of chemical engineering of Japan 40(2), 85-92, 2007-02-01 

    The Society of Chemical Engineers, Japan

参考文献:  19件

参考文献を見るにはログインが必要です。ユーザIDをお持ちでない方は新規登録してください。

各種コード

  • NII論文ID(NAID)
    10018576869
  • NII書誌ID(NCID)
    AA00709658
  • 本文言語コード
    ENG
  • 資料種別
    ART
  • ISSN
    00219592
  • NDL 記事登録ID
    8662640
  • NDL 雑誌分類
    ZP1(科学技術--化学・化学工業)
  • NDL 請求記号
    Z53-R395
  • データ提供元
    CJP書誌  NDL  J-STAGE 
ページトップへ