TY - JOUR
T1 - Vapor-Hydrate Equilibrium Ratio Charts for Heavy Hydrocarbon Compounds. 1. Structure-II Hydrates
T2 - Benzene, Cyclopentane, Cyclohexane, and Neopentane
AU - Tohidi Kalorazi, Bahman
AU - Danesh, Ali
AU - Tabatabaei, A. R.
AU - Todd, Adrian Christopher
PY - 1997/7
Y1 - 1997/7
N2 - The most successful empirical method for predicting hydrate-phase equilibrium in water-hydrocarbon system is based upon vapor-solid equilibrium ratio (Kvs values) correlations. Equilibrium ratio charts for known hydrate formers, with n-butane as the heaviest compound, are available in the literature. With the discovery of heavier hydrate-forming compounds, their equilibrium ratio charts are required for reliable prediction of the hydrate-free zone of hydrocarbon mixtures, particularly reservoir fluids. In this work, an in-house thermodynamic model, validated against experimental hydrate equilibrium data of four structure-II heavy hydrate formers (HHF), benzene, cyclopentane, cyclohexane, and neopentane, has been used for generating their Kvs value charts. The resulting Kvs values have been used in predicting a hydrate-free zone of binary and ternary mixtures of HHF with methane and/or nitrogen, demonstrating success when compared with experimental data.
AB - The most successful empirical method for predicting hydrate-phase equilibrium in water-hydrocarbon system is based upon vapor-solid equilibrium ratio (Kvs values) correlations. Equilibrium ratio charts for known hydrate formers, with n-butane as the heaviest compound, are available in the literature. With the discovery of heavier hydrate-forming compounds, their equilibrium ratio charts are required for reliable prediction of the hydrate-free zone of hydrocarbon mixtures, particularly reservoir fluids. In this work, an in-house thermodynamic model, validated against experimental hydrate equilibrium data of four structure-II heavy hydrate formers (HHF), benzene, cyclopentane, cyclohexane, and neopentane, has been used for generating their Kvs value charts. The resulting Kvs values have been used in predicting a hydrate-free zone of binary and ternary mixtures of HHF with methane and/or nitrogen, demonstrating success when compared with experimental data.
U2 - 10.1021/ie9607661
DO - 10.1021/ie9607661
M3 - Article
SN - 0888-5885
VL - 36
SP - 2871
EP - 2874
JO - Industrial and Engineering Chemistry Research
JF - Industrial and Engineering Chemistry Research
IS - 7
ER -