ESTIMATION OF COKE POROSITY VARIATION WITH TEMPERATURE DURING CARBONIZATION.

Takatoshi Miura, Jun Fukai, Hisao Matsubayashi, Shigemori Ohtani

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Abstract

The porosity of a packed bed of coals, which is transformed into coke during the carbonization process, is estimated by taking the following phenomena into account: volume change by swelling and shrinking, gas production and weight loss of the coal during the carbonization reaction. The porosity is determined by the apparent density of the packed bed of coal and the true density of coal. Total amount and production rate of each gas are then determined experimentally for four bituminous coals which are heated at 0. 042 and 0. 083 K/s from room temperature to 1 300 K. The porosity is measured by following JIS method for four bituminous coals which are heated at 0. 05 K/S from room temperature to an arbitrary temperature above solidification point. The variation of estimated coke porosity with temperature agrees well with the experimental one.

Original languageEnglish
Pages (from-to)1872-1879
Number of pages8
JournalTetsu-To-Hagane/Journal of the Iron and Steel Institute of Japan
Volume71
Issue number16
DOIs
Publication statusPublished - Jan 1 1985
Externally publishedYes

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All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics
  • Physical and Theoretical Chemistry
  • Metals and Alloys
  • Materials Chemistry

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