Influence of kneading ratio on the binding interaction of coke aggregates on manufacturing a carbon block

• 발행기관: 한국탄소학회
• 저자명: Jong Gu Kim Ji Hong Kim Byong Chol Bai Yun Jeong Choi Ji Sun Im Tae-Sung Bae Young-Seak Lee
• 간행물 정보: 『Carbon Letters』 제28권, 24~30쪽, 전체 7쪽
• 주제분류: 자연과학 > 자연과학일반
• 파일형태: PDF
• 발행일자: 2018.10.31

영문 초록

Coke aggregates and carbon artifacts were produced to investigate the interactions of coke and pitch during the kneading process. In addition, the kneading ratio of the coke and binder pitch for the coke aggregates was controlled to identify the formation of voids and pores during carbonization at 900°C. Experiments and thermogravimetric analysis revealed that carbon yields were improved over the theoretical yield calculated by the weight loss of the coke and binder pitch; the improvement was due to the binding interactions between the coke particles and binder pitch by the kneading process. The true, apparent, and bulk densities fluctuated according to the kneading ratio. This study confirmed that an excessive or insufficient kneading ratio decreases the density with degradation of the packing characteristics. The porosity analysis indicated that formation of voids and pores by the binder pitch increased the porosity after carbonization. Image analysis confirmed that the kneading ratio affected the formation of the coke domains and the voids and pores, which revealed the relations among the carbon yields, density, and porosity.

목차

1. Introduction

2. Experimental

3. Results and Discussion

4. Conclusions

키워드

kneading process coke aggregates carbon artifacts binder pitch carbonization