Korean Chemical Engineering Research

The Korean Institute of Chemical Engineers (한국화학공학회)
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Calculation of the Hydrocarbon and Water Dew points of Natural Gas

천연가스의 탄화수소 및 물 이슬점 계산

  • 하영철 (한국가스공사 연구개발원 유체계량연구실) ;
  • 이성민 (한국가스공사 연구개발원 유체계량연구실) ;
  • 허재영 (한국가스공사 연구개발원 유체계량연구실) ;
  • 이강진 (한국가스공사 연구개발원 유체계량연구실) ;
  • 이승준 (한국가스공사 연구개발원 유체계량연구실)
  • Received : 2009.05.13
  • Accepted : 2009.07.27
  • Published : 2009.10.31
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Abstract

This study was conducted to evaluate hydrocarbon and water dew points of natural gas. For this purpose, algorithm of suppressing divergence was devised to evaluate hydrocarbon dew point up to near critical point and algorithm for finding water dew points lower than that of hydrocarbon, which cannot be calculated by commercial dew point program, was developed. The evaluated values were compared to commercial program and ISO reference values, and the results showed that deviations were zero.

본 연구에서는 천연가스의 탄화수소 이슬점과 물 이슬점을 계산하고자 하였다. 이를 위해 임계압력 근방까지 탄화수소 이슬점이 계산되도록 발산 방지 로직을 고안하였고 물 이슬점의 대해서는, 상용프로그램과 달리 탄화수소 이슬점 이하에서도 이슬점이 계산될 수 있도록 로직을 개발하였다. 그리고 계산결과는 국외 상용프로그램 및 ISO와 비교하였으며 차이는 없는 것으로 나타났다.

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References

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