Effect of Meso-scale Pore Structure on Coke Strength
Yasuhiro SAITO, Tetsuya KANAI, Yoshiaki YAMAZAKI, Yohsuke MATSUSHITA, Hideyuki AOKI, Seiji NOMURA
pp. 93-101
DOI:
10.3775/jie.96.93Abstract
To explore the factors that affect coke strength in the meso-scale pore structure of coke, we investigated the relationship between the strength and meso-scale pore structure of the polished surface of coke sample. Coke was fractured using diametral-compression tests, and the tensile strength of coke was measured. Furthermore, we observed the polished surface of coke and obtained combined images with a size of 10 mm × 10 mm. The size and roundness of the pores were evaluated by image analysis. The pores were classified according to the pore size, and the strength of coke with many pores with a diameter of more than 1000 µm was indicated to be low. Moreover, the roundness of pores with a diameter of more than 1000 µm was low. Therefore, pores with diameter of more than 1000 µm and low roundness are considered to greatly affect the strength of coke in a meso-scale structure.
Readers Who Read This Article Also Read
Journal of the Japan Institute of Energy Vol.96(2017), No.4
Journal of the Japan Institute of Energy Vol.96(2017), No.6
Journal of the Japan Institute of Energy Vol.96(2017), No.4