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고압기액평형의 측정과 추산

Measurement Technique and Data Correlation of Vapor-Liquid Equilibria at High Pressure

HWAHAK KONGHAK, December 1982, 20(6), 419-432(14), NONE
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Abstract

원유가의 인상에 의한 대체에너지의 개발의 일환으로 기체의 압입에 의한 원유의 회수증대, 석탄 등의 고체 연료를 액화하려는 노력에 따라, 또한, 최근 고압의 초임계기체에 의한 난휘발성고체의 용해에 대하여 관심이 많아짐에 따라 고압에서 상평형을 측정할 수 있는 정치식측정장치의 개발 및 고압기액평형의 추산에 관한 연구가 활발하게 되었다.
본 총설에서는 고압기액평형장치의 개발동향과 문제점, 상태방정식에 의한 평형관계의 추산방법 및 초임계기체에 의한 고체의 추출공정에 응용되는 상평형관계에 대하여 그 연구와 현황을 소개하려 한다.
Much effort has recently been put on the study of measurement technique and prediction for the vapor-liquid equilibrium at high pressure because of their increasing importance in the enhanced oil recovery (EOR) by CO2 gas, liquefaction of solid fuels, and extraction of less volatile substance with supercritical gases.
This review presents the recent trend of vapor-liquid equilibrium studies at high pressure, discussion on the difficulties associated with these studies, and a survey of progress in the development of new or modified equation of state and prediction methods applicable to phase equilibria of EOR and supercritical gas extraction.

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