Journal of the Korean Institute of Gas (한국가스학회지)

The Korean Institute of GAS (한국가스학회)
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A comparison of predicted VLE of LNG mixtures containing $H_2S$ by use of Cubic and Noncubic EOS

$H_2S$를 포함하는 LNG 혼합물에 대한 Cubic과 Noncubic 상태방정식의 예측 비교

  • Choi Eunjoo (Department of Chemical Engineering, Kyungpook National University) ;
  • Lee Taejong (Department of Chemical Engineering, Kyungpook National University)
  • 최은주 (경북대학교 화학공학과) ;
  • 이태종 (경북대학교 화학공학과)
  • Published : 2000.12.01
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Abstract

Cubic and non-cubic equations of state are used to calculate the vapor-liquid equilibrium(VLE) compositions for liquified natural gas(LNG) containing hydrogen sulfide. Modified Benedict-Web-Robin EOS is chosen as a non-cubic equation of state while Peng-Robinson, Soave-Redlich-Kwong EOS are used for a cubic EOS. Modified Benedict-Web-Robin EOS. showed better predictability than the cubic EOS used for the systems $H_2S/CH_4,\;H_2S/iC_4H_{10},\;H_2S/N_2$. specially for liquid composition.

[ $H_2S$ ]를 포함하는 액화천연가스(Liquified Natural Gas)의 기-액 조성을 noncubic 형태인 Modified-Benedict-Web-Robin EOS로 예측하였고, 그 결과를 대표적 cubic형태의 Peng-Robinson, Soave-Redlich-Kwong EOS로 예측한 기-액 조성과 비교 검토하였다.

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