Transactions of the Korean hydrogen and new energy society (한국수소및신에너지학회논문집)

The Korean Hydrogen and New Energy Society (한국수소및신에너지학회)
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The Biomass Pre-treatment Effect on the Combustion Characteristics of Coal and Biomass Blends

바이오매스 전처리 기술에 따른 혼소 특성에 관한 실험적 연구

  • KIM, JONG-HO (School of Mechanical Engineering, Pusan National University) ;
  • PARK, KYEONG-HOON (School of Mechanical Engineering, Pusan National University) ;
  • KIM, GYEONG-MIN (School of Mechanical Engineering, Pusan National University) ;
  • PARK, KYEONG-WON (School of Mechanical Engineering, Pusan National University) ;
  • JEONG, TAE-YONG (School of Mechanical Engineering, Pusan National University) ;
  • LEE, YOUNG-JOO (Clean Fuel Department, High Efficiency and Clean Energy Research Division, Korea Institute of Energy Research (KIER)) ;
  • JEON, CHUNG-HWAN (School of Mechanical Engineering, Pusan National University)
  • 김종호 (부산대학교 기계공학부) ;
  • 박경훈 (부산대학교 기계공학부) ;
  • 김경민 (부산대학교 기계공학부) ;
  • 박경원 (부산대학교 기계공학부) ;
  • 정태용 (부산대학교 기계공학부) ;
  • 이영주 (한국에너지기술연구원 청정연료 연구실) ;
  • 전충환 (부산대학교 기계공학부)
  • Received : 2017.11.14
  • Accepted : 2018.02.28
  • Published : 2018.02.28
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Abstract

Fuel blend technique is one of the most effective way of using biomass to replace the coal. Many studies on combustion characteristics with coal and biomass blends have been conducted. In this study, char reactivity and emission characteristics of coal (Suek) and biomass (EFB) blends has been investigated by TGA and DTF to evaluate the applicability of the pre-treated (torrefaction, ash removal technology) EFB to pulverized coal boiler. In all blending cases, char reactivity improved as the blending ratio increases (10, 20, and 30%), especially torrefied EFB blended at 30%. Also, unburned carbon decreased as the blending ratio increases in all types of EFB. NOx emission showed the increase and decrease characteristics according to the content of fuel-N of raw EFB and torrefied EFB. But the amount of NOx emission at ashless EFB blends is greater than that of Suek despite of lower fuel-N. It indicated that co-firing effect of using the pretreatment biomass fuel is relatively better than those of the untreated biomass fuel about char reactivity and emission characteristics.

Keywords

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