Premium
Vapor‐liquid equilibrium in the methane–n‐hexane–nitrogen system
Author(s) -
Poston Robert S.,
McKetta John J.
Publication year - 1965
Publication title -
aiche journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.958
H-Index - 167
eISSN - 1547-5905
pISSN - 0001-1541
DOI - 10.1002/aic.690110531
Subject(s) - chemistry , methane , hydrocarbon , hexane , nitrogen , hydrocarbon mixtures , liquid nitrogen , refinery , vapor pressure , analytical chemistry (journal) , thermodynamics , chromatography , organic chemistry , physics
Abstract Because varying amounts of nitrogen are found in hydrocarbon mixtures, a knowledge of vapor‐liquid equilibrium ratios for hydrocarbon‐nitrogen system is needed for petroleum reservoir studies and refinery calculations. Presented here are results of a quantitative investigation which shows how the K values of methane and n ‐hexane change when varying amounts of nitrogen are added to mixtures of the two hydrocarbons. Analyses of equilibrium phases at different conditions of temperature and pressure in order to completely describe the phase equilibria of the system are presented. Temperature intervals of 60°F., starting at 100°F., and going up to 340°F. were used. At each temperature equilibrium samples were taken at 500 lb./sq.in.abs. and the pressure increased in 500 lb./sq.in.abs. intervals with samples taken at each interval up to 5,000 lb./sq.in.abs. or the critical pressure, whichever was lower.