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8698596 
Meetings & Symposia 
Comparison of commercially available software packages for hydrocarbon dew point calculation against each other and experimental data 
Laughton, A; Gronemann, U; Benito, A; Kukova, E; Kaesler, H; Van Caneghem, P; Velde, B; Solvang, S; Lindgren, T; Panneman, HJ; Laguerre, D; Dusart, O; Papworth, D; Viglietti, B; Maghini, F; Solbraa, E; Werner, J 
2006 
5 
2700-2712 
English 
The hydrocarbon dew point of natural gas is an important parameter in regard to the potential formation of hydrocarbon liquids during normal operation of natural gas pipelines. One approach for its determination is to use a detailed gas analysis and phase calculation models. The way of handling heavy hydrocarbons, isomers, aromatic and cyclic compounds also influence the calculated hydrocarbon dew point of natural gas. All these parameters were studied by generating compositions derived from real natural gases. To make further comparison from these software packages, calculations were also performed with binary mixtures and synthetic gas compositions. Peng Robinson (PR) and Redlich Kwong Soave (RKS) EOS were used to find out their applicability and to show their limitations and discrepancies. The cricondentherm temperatures calculated by the PR and RKS EOS showed significant but rather constant difference. PR EOS calculated cricondentherm temperatures, which were 2°-3°C lower than calculated with the RKS EOS. Aromatic and cyclic compounds (benzene, toluene, cyclohexane, methylcyclohexane) could have significant influence on hydrocarbon dew point. This is an abstract of a paper presented at the International Gas Union 23rd World Gas Conference 2006 (Amsterdam, The Netherlands 6/5-9/2006).