Journal of Thermodynamics / 2009 / Article / Tab 2

Review Article

Development of Predictive Techniques for Estimating Liquid Water-Hydrate Equilibrium of Water-Hydrocarbon System

Table 2

Constants 𝐴 - 𝐷 in (18) [28].

Hydrate former 𝐴 𝐡 / K 𝐢 / K βˆ’ 1 𝐷 / K βˆ’ 1 𝑇 m i n 𝑇 m a x

Methane147.788βˆ’5768.3βˆ’52.29520.018616273.15373.15
Ethane146.901βˆ’5768.3βˆ’51.85930.017410273.15343.15
C O 2 21.6215βˆ’1499.8βˆ’5.649470.0002062273.15373.15

For the propane-water system the following equation was used: 𝐻 p r o p a n e , 𝑀 ( 𝑇 ) = 1 0 βˆ’ 3 Γ— e x p { 5 5 2 . 6 4 8 + 0 . 0 7 8 4 5 3 Γ— 𝑇 βˆ’ ( 2 1 3 3 4 . 4 / 𝑇 ) βˆ’ 8 5 . 8 9 7 3 6 Γ— l n ( 𝑇 ) } .

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