Journal of the Korea Organic Resources Recycling Association (유기물자원화)

Korea Organic Resources Recycling Association (유기성자원학회)
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Preparation and characterization of SRF(Solid Refuse Fuel) using heavy oil fly ash

중유회를 활용한 고형연료 제조 및 특성

  • Min, Hong (Plant Engineering Center, Institute for Advanced Engineering) ;
  • Cho, Sung-su (Plant Engineering Center, Institute for Advanced Engineering) ;
  • Seo, Minhye (Plant Engineering Center, Institute for Advanced Engineering) ;
  • Lee, Soo-Young (Plant Engineering Center, Institute for Advanced Engineering) ;
  • Choi, Changsik (Plant Engineering Center, Institute for Advanced Engineering)
  • 민홍 (고등기술연구원 플랜트엔지니어링센터) ;
  • 조성수 (고등기술연구원 플랜트엔지니어링센터) ;
  • 서민혜 (고등기술연구원 플랜트엔지니어링센터) ;
  • 이수영 (고등기술연구원 플랜트엔지니어링센터) ;
  • 최창식 (고등기술연구원 플랜트엔지니어링센터)
  • Received : 2019.12.04
  • Accepted : 2019.12.19
  • Published : 2019.12.20
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Abstract

In this study, the characteristics of the SRF (Solid Refuse Fuel) prepared by blending each of the additives (citrus peel, waste wood, coal) in the heavy oil fly ash, evaluating the heavy oil fly ash recyclability. Recycling SRFs were fabricated by pellet extruding method after blending the heavy oil fly ash and additives based on 30% moisture content. As a result, the formability of the SRFs was excellent under condition of blending heavy oil fly ash with coal or citrus peel and the highest calorific value was 4,274 kcal/kg at heavy oil fly ash mixed with coal. Therefore, the formability and calorific value were improved when the heavy oil fly ash was mixed with coal(20 wt%) at 30% moisture content. From these results, the applicability of SRFs with additives was confirmed by using the heavy oil fly ash from J thermal power plant.

본 연구에서는 중유회의 고형연료로써 활용 가능성을 평가하기 위해 첨가제별 성형 특성과 조성을 분석하고, 제조한 SRF(Solid Refuse Fuel)의 발열량을 비교하였다. SRF 성형을 위해 함께 첨가한 첨가제는 귤박, 폐목재, 석탄이었으며, 함수율 30%를 기준으로 각각의 첨가제를 혼합하여 압출방법을 통해 펠렛 형태로 제조하였다. 실험결과, SRF의 성형성은 중유회와 석탄 또는 귤박을 혼합한 조건에서 우수하였으며, 발열량은 석탄을 혼합한 SRF가 4,274 kcal/kg 으로 가장 높았다. 따라서 중유회를 활용한 고형연료의 합성 조건은 20 wt%의 석탄을 혼합하여 함수율 30%로 제어하였을 때, 높은 성형성과 발열량의 향상을 나타내는 것을 확인하였다. 이 결과로부터 J 화력발전소의 중유회를 활용하여 첨가제(귤박, 폐목재, 석탄)를 일정 비율로 주입하였을 때 고형연료의 제조 가능성을 확인할 수 있었다.

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