화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Korean Chemical Engineering Research, Vol.60, No.1, 25-33, February, 2022
DOI10.9713/kcer.2022.60.1.25  Export Citation
스팀 절감량 예측을 위한 흑액 다중 효용 증발 공정 모델 개발
Development of Black Liquor Multiple-effect-evaporation Process Model to Predict Steam Savings
김유림1, 2, 임종훈1, 3, 최영렬1, 3, 김태복4, 박한신4, 조형태1, †, 김정환1, †
  • 1한국생산기술연구원 친환경재료공정연구그룹, 44413 울산광역시 중구 종가로 55
  • 2동국대학교 화공생물공학과, 04620 서울특별시 중구 필동로 1길 30
  • 3연세대학교 화공생명공학과, 03722 서울특별시 서대문구 연세로 50
  • 4무림P&P㈜ 프로젝트부, 45011 울산광역시 울주군 온산읍 우봉강양로 3-36
Yurim Kim1, 2, Jonghun Lim1, 3, Yeongryeol Choi1, 3, Taebok Kim4, Hansin Park4, Hyungtae Cho1, †, and Junghwan Kim1, †
  • 1Green Materials and Processes R&D Group, Korea Institute of Industrial Technology, 55, Jonga-ro, Ulsan, 44413, Korea
  • 2Department of Chemical and Biochemical Engineering, Dongguk University, 30, Pildong-ro 1-gil, Jung-gu, Seoul, 04620, Korea
  • 3Department of Chemical and Biomolecular Engineering, Yonsei University, 50, Yonsei-ro, Seoul, 03722, Korea
  • 4Project Part, MOORIM P&P Co., 3-36, Ubonggangyang-ro, Ulsan, 45011, Korea
E-mail:,
초록
본 연구에서는 흑액 증발공정에 소비되는 스팀의 절감량을 예측하기 위해 증발기 수에 따른 다중 효용 증발공정 모델을 개발하였다. 개발한 공정 모델은 흑액의 예열 및 증발 과정으로 구성되어 있고, 스팀 사용량을 예측하기 위해 가상의 재비기가 추가되었다. 시뮬레이션 결과, 2중 효용 증발기에서 스팀 사용량은 48.9% 감소하였고, 증발기 수가 증가함에 따라 스팀 사용량이 감소하여 8중 효용 증발기에서 최대 76.5% 감소함을 확인하였다. 시뮬레이션 결과를 증발기 수에 따른 포화증기의 잠열 회수량, 스팀 사용량, 각 증발기의 포화증기 생산량으로 분석하여 최적의 증발기 수 도출을 위한 방안을 제시하였다.
This study developed the black liquor evaporation process models using the multiple-effect-evaporator according to the number of effects to predict steam consumption. The developed models were divided into the black liquor preheating and evaporation processes, and a virtual reboiler was added to predict steam consumption. In simulation results, the steam consumption in the double-effect-evaporator was decreased by 48.9 %, and as the number of effects increased, the steam consumption was decreased. Finally, the steam consumption in the octuple-effectevaporator was decreased by 61.2 %. Also, this study suggests a strategy for deriving the optimal number of effects in the process by analyzing the latent heat recovered from the saturated vapor produced in the multiple-effect-evaporator and the amount of saturated vapor produced by each effect.
Keywords:Black liquor;Evaporation process;Multiple-effect-evaporator (MEE);Process modeling
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