Browse > Article

Effects of Different Coal Type on Gasification Characteristics  

Park, Se-Ik (Power Generation Lab., KEPCO Research Institute)
Lee, Joon-Won (Power Generation Lab., KEPCO Research Institute)
Seo, Hea-Kyung (Power Generation Lab., KEPCO Research Institute)
Publication Information
Transactions of the Korean hydrogen and new energy society / v.21, no.5, 2010 , pp. 470-477 More about this Journal
Abstract
The IGCC (Integrated gasification combined cycle) is known for one of the highest efficiency and the lowest emitting coal fueled power generating technologies. As the core technology of this system is the gasifier to make the efficiency and the continuous operation time increase, the research about different coal's gasification has been conducted. Our research group had set-up the coal gasifier for the pilot test to study the effect of different coals-Shenhua and Adaro coal- on gasification characteristics. Gasification conditions like temperature and pressure were controlled at a fixed condition and coal feed rate was also controlled 30 kg/h to retain the constant experimental condition. Through this study we found effects of coal composition and $O_2$/coal ratio on the cold gas efficiency, carbon conversion rate. The compounds of coal like carbon and ash make the performance of gasifier change. And carbon conversion rate was decreased with reduced $O_2$/coal ratio. The optical $O_2$/coal ratio is 0.8 for the highest cold gas efficiency approximately. At those operating conditions, the higher coal has the C/H ratio, the lower syn-gas has the $H_2$/CO ratio.
Keywords
Gasifier; Carbon conversion; IGCC(Integrated gasification combined cycle;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
1 정석우, 이도연, 정우현, 박준성, 전동환, "오일센드 bitumen 가스화기 시스템의 중질 잔사유 적용 가스화 운전특성", Applied Chemistry, Vol. 13, No. 1, April, 2009, pp. 153-156.
2 Yongseung Yun, Young Dou Yoo, Seok Woo Chung, "Selection of IGCC candidate coals by pilot-scale gasifier operation", Journal of fuel processing technology, Vol. 88, 2007, pp. 107-116.   DOI   ScienceOn
3 Juan J. Hemandez a, Guadalupe Aranda- Almansa a, Antonio Bula b "Gasification of biomass wastes in an entrained flow gasifier. Effect of the particle size and the residence time", Journal of fuel processing technology, Vol. 92, 2010, pp. 681-692.
4 Nenad Crnomarkovic, Branislav Repic, Rastko Mladenovic, Olivera Neskovic, Miomir Veljkovic, "Experimental investigation of role of steam in entrained flow coal gasification", Journal of fuel, Vol. 86, 2007, pp. 194-202.   DOI   ScienceOn
5 See Hoon Lee, Sang Jun Yoon, Ho Won Ra, Young II Son, Jai Chang Hong, Jae Goo Lee, "Gasification characteristics of coke and mixture with coal in an entrained-flow gasifier", Journal of energy, Vol. 35, 2010, pp. 3239-3244.   DOI   ScienceOn
6 윤용승, 이계봉, 정석우, "건식 석탄가스화기에서 생성된 미량가스와 비산재의 특성", 화학공학회 논문집, Vol. 14, No. 4, 2003, pp. 511-518.
7 Xiaolei Guo, Zhenghua Dai, Xin Gong, Xueli Chen, Haifeng Liu, Fuchen Wang, Zunhong Yu, "Performance of an entrained-flow gasification technology of pulverized coal in pilot scale plant", Journal of fuel processing technology Vol. 88, 2007, pp. 451-459.   DOI   ScienceOn
8 Christopher Higman, Maarten van der Burgt, "Gasification", second edition, 2008, pp. 12-90.
9 서혜경, 정재화, 주지선, "건식 석탄 공급형 1Ton/Day급 가스화시스템 설계조건 및 시운전결과", 한국수소 및 신에너지학회 논문집, Vol. 20, No. 4, 2009, pp. 352-359.   과학기술학회마을