Abstract
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.
| Original language | English |
|---|---|
| Pages (from-to) | 93-101 |
| Number of pages | 9 |
| Journal | Nihon Enerugi Gakkaishi/Journal of the Japan Institute of Energy |
| Volume | 96 |
| Issue number | 4 |
| Publication status | Published - 2017 |
Keywords
- Coke
- Coke strength
- Image analysis
- Microstructure
- Pore structure
ASJC Scopus subject areas
- Energy(all)