An experimental investigation of factors related to coke strength degradation in coke milli-structure

Tetsuya Kanai, Yoshiaki Yamazaki, Kenichi Hiraki, Xiaoqing Zhang, Masakazu Shoji, Hideyuki Aoki, Takatoshi Miura

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Abstract

In order to clarify the factors related to coke strength degradation, relationship between coke strength and pore structure is quantitatively investigated. The tensile strength of coke is measured by diametral-compression test and analyzed by Weibull plot. Pore structure is analyzed with wide range(10 mm×10 mm) and high resolution(2.43 μm/pixel) photographs which are acquired by combining approximately 20 photographs. Absolute maximum pore length, pore area ratio and pore roundness are measured by image analysis of the photographs. By comparison of strength and absolute maximum pore length in coke, strength is degraded with an increase in area ratio of pores over 1000 μm in absolute maximum length. From image analysis, it is found that the pore roundness decreases with an increase in absolute maximum length. The length of 1000 μm corresponds with the critical crack length calculated by Griffith equation in scale.

Original languageEnglish
Title of host publication27th Annual International Pittsburgh Coal Conference 2010, PCC 2010
Pages1925-1931
Number of pages7
Publication statusPublished - 2010 Dec 1
Event27th Annual International Pittsburgh Coal Conference 2010, PCC 2010 - Istanbul, Turkey
Duration: 2010 Oct 11 → …

Publication series

Name27th Annual International Pittsburgh Coal Conference 2010, PCC 2010
Volume3

Other

Other27th Annual International Pittsburgh Coal Conference 2010, PCC 2010
CountryTurkey
CityIstanbul
Period10/10/11 → …

ASJC Scopus subject areas

  • Geochemistry and Petrology
  • Geotechnical Engineering and Engineering Geology

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  • Cite this

    Kanai, T., Yamazaki, Y., Hiraki, K., Zhang, X., Shoji, M., Aoki, H., & Miura, T. (2010). An experimental investigation of factors related to coke strength degradation in coke milli-structure. In 27th Annual International Pittsburgh Coal Conference 2010, PCC 2010 (pp. 1925-1931). (27th Annual International Pittsburgh Coal Conference 2010, PCC 2010; Vol. 3).