Transactions of the Korean Society of Mechanical Engineers B (대한기계학회논문집B)

The Korean Society of Mechanical Engineers (대한기계학회)
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An Experimental and Numerical Study on the Characteristics of Devolatilization Process for Coals Utilized in Korea Using CPD Model

CPD 모델을 이용한 국내수입탄 성상에 따른 탈휘발 특성에 관한 실험 및 해석적 연구

  • 김량균 (부산대학교 대학원 기계공학부) ;
  • 이병화 (부산대학교 대학원 기계공학부) ;
  • 전충환 (부산대학교 기계공학부 화력발전에너지분석기술센터) ;
  • 송주헌 (부산대학교 기계공학부 화력발전에너지분석기술센터) ;
  • 장영준 (부산대학교 기계공학부 화력발전에너지분석기술센터) ;
  • Published : 2009.08.01
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Abstract

Coal is the energy resource which is important with the new remarking energy resource. Coal combustion produces more NOx per unit of energy than any other major combustion technology. Pollutant emission associated with coal combustion will have a huge impact on the environment. Coal conversion has three processes which are drying, coal devolatilization and char oxidation. Coal devolatilization process is important because it has been shown that HCN which is converted from volatile N contributes 60 to 80% of the total NOx produced. This paper addresses mass release behavior of char, tar, gas and HCN in an experiment of Laminar Flow Reactor with two coals such as Roto middle coal (Sub-bituminous) and Anglo coal (Bituminous). The experiment is compared with the data predicted by CPD model for mass release of HCN about Roto south, Indominco, Weris creek and China orch coals. The results show that HCN increases as a function of decreasing the ratio of fixed carbon(FC)/ volatile matter(VM of the coals contain.)

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References

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