The Calculation of the Extraction Process for the Atmospheric Residue-pentane System

상압잔사유-펜탄계 추출공정 계산

  • Baek, Il-Hyun (Energy & Environment Research Department, Korea Institute of Energy Research) ;
  • Kim, Choon-Ho (Energy & Environment Research Department, Korea Institute of Energy Research) ;
  • Min, Byoung-Moo (Energy & Environment Research Department, Korea Institute of Energy Research) ;
  • Hwang, Jong-Sic (R&D, Hanwha Energy Co., Ltd.) ;
  • Hong, Song-Sun (Dept. of Chem. Eng., Chungbuk Nat'l Univ.)
  • 백일현 (한국에너지기술연구소 에너지환경연구부) ;
  • 김춘호 (한국에너지기술연구소 에너지환경연구부) ;
  • 민병무 (한국에너지기술연구소 에너지환경연구부) ;
  • 황종식 (한화에너지주식회사 기술연구소) ;
  • 홍성선 (충북대학교 화학공학과)
  • Received : 1996.10.22
  • Accepted : 1997.02.25
  • Published : 1997.04.10


Extraction of valuable light hydrocarbon from atmospheric residue using pentane as a solvent has been carried out. The SIMDIS was used to calculate the true boiling point of atmospheric residue containing complex components before the modeling of the extraction process could by performed. In order to simplify the procedure, modeling was adopted and a lumping method was used, such that a large number of compounds were divided into similar component classes called pseudocomponents. The modeling of the extraction process of the atmospheric residue-pentane system was based on the isothermal flash calculation, and the Peng-Robinson equation of state was used to calculate the fugacity coefficient of vapor and liquid phase during calculation steps of modeling. The agreement between the experiments and the calculations was reasonable considering the uncertainties involved in modeling such complex processes.



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