화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Clean Technology, Vol.23, No.3, 223-236, September, 2017
DOI10.7464/ksct.2017.23.3.223  Export Citation
첨가제를 이용한 보일러 열교환기의 고온부식 방지기술 현황
A Technical Review on the Protective Measures of High Temperature Corrosion of Boiler Heat Exchangers with Additives
김범종1, 2, 류창국1, 이은도2, 3, †, 김영두2, 3, 이정우4, 송재헌4
  • 1성균관대학교 기계공학과, 경기 수원시 장안구 서부로 2066
  • 2한국생산기술연구원, 충남 천안시 서북구 입장면 양대기로길 89
  • 3과학기술연합대학원대학교, 대전광역시 유성구 가정로 217
  • 4(주)한솔신텍, 경남 창원시 성산구 중앙대로 64 신텍타워
Beomjong Kim1, 2, Changkook Ryu1, Uendo Lee2, 3, †, Youngdoo Kim2, 3, Jeongwoo Lee4, and Jaehun Song4
  • 1School of mechanical Engineering, Sungkyunkwan University, 2066 Seobu-ro, Jangan-gu, Suwon-si, Gyeonggi, Korea
  • 2Thermochemical Energy System R&BD Group, Korea Institute of Industrial Technology, 89 Yangdaegiro-gil, Ipjang-myeon, Seobuk-gu, Cheonan-si Chungnam, Korea
  • 3Green Process and System Engineering, University of Scicence and Technology, 217 Gajeong-ro, Yuseong-gu, Daejeon, Korea
  • 4Hansol SeenTec, 64 Jungang-daero, Seongsan-gu, Changwon-si, Gyeongnam, Korea
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초록
기후변화 대응을 위한 청정 화력발전 기술의 일환으로 폐기물과 바이오매스를 중심으로 한 신재생연료의 이용이 크게 증가함에 따라 특히 고온·고압 스팀 생산이 필요한 발전용 보일러 열교환기의 고온부식(High temperature corrosion) 문제가 심각한 현안으로 대두되고 있다. 이러한 문제점은 저급연료에 포함된 염화알칼리 성분이 보일러 내 열교환기 중 표면온도가 가장 높은 과열기(Superheater) 또는 재열기(Reheater)에 점착된 후 염소에 의해 부식이 가속화되어 일어난다. 이를 해결하기위해 설계 변경, 재료 개선, 연료 전처리 등의 고온부식 회피 방법과 함께 첨가제를 이용한 고온부식 방지 기술이 활용되고있다. 본 연구에서는 보일러에서 고온부식 방지를 위한 다양한 접근 중 특히 첨가제를 이용한 연구개발현황을 소개한다.
As the use of waste and biomass increases in a power generation boiler, high temperature corrosion (HTC) problems of boiler heat exchangers are becoming very important. Chlorine of the low-rank fuels is mainly responsible for the HTC issues, which typically occur in the surface of high temperature heat exchanger like a superheater or reheater. In order to mitigate the problem, various approaches have been proposed in terms of design modification, material improvement, fuel pre-treatment and additive utilization. In this study, the current state of research and development focused on the additive method was investigated.
Keywords:High temperature corrosion;Biomass and waste;Chloride;Sulfate additives;Boiler
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