Preparation of high-strength coke by carbonization of hot-briquetted Victorian brown coal

Aska Mori, Sousuke Kubo, Shinji Kudo, Koyo Norinaga, Tetsuya Kanai, Hideyuki Aoki, Hayashi Jun-Ichiro

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Abstract

Cokes with tensile strengths of 6-37 MPa were prepared by binderless briquetting and subsequent carbonization up to 900 °C of pulverized Victorian brown coal that had little fluidity and very low reflectance. Application of mechanical pressures of 64-128 MPa at temperatures of 130-200 °C caused softening of the coal because of mobilization of both low- and high-molecular-mass components, deformation of the coal matrix, and then coalescence/bonding of particles. The resulting coke had a density as high as 1.1-1.3 g/cm 3 and tensile strength of 28-37 MPa, which was 5-6 times that of conventional metallurgical coke.

Original languageEnglish
Pages (from-to)296-301
Number of pages6
JournalEnergy and Fuels
Volume26
Issue number1
DOIs
Publication statusPublished - Jan 19 2012

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All Science Journal Classification (ASJC) codes

  • Chemical Engineering(all)
  • Fuel Technology
  • Energy Engineering and Power Technology

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