Hydrate decomposition conditions in the system hydrogen sulfide-methane, and propane
Experimental hydrate decomposition conditions are presented for 3 different H/sub 2/S-containing mixtures in the temperature region 0 C to 30 C. The 3 mixtures investigated were 4% H/sub 2/S, 7% propane, 89% methane; 12% H/sub 2/S, 7% propane, 81% methane; and 30% H/sub 2/S, 7% propane, 63% methane. Hydrate decomposition pressures and temperatures were obtained for each of these mixtures by observation of the pressure-temperature hysteresis curves associated with formation and decomposition of the hydrate crystals. A repeatable decomposition point was observed in every case, and this was identified as the hydrate point. The results for the 4% H/sub 2/S mixture were used to adjust parameters in a computer model based on the Parrish and Prausnitz statistical thermodynamics method, coupled with the BWRS equation of state. After the parameter adjustment, the computer model predicted the behavior of the 12% H/sub 2/S and the 30% H/sub 2/S mixtures to within 2 C. Experimental data for the 3 mixtures are given.
- OSTI ID:
- 5690107
- Journal Information:
- Gas Processors Ass. Tech. Publication No.; (), Journal Name: Gas Processors Ass. Tech. Publication No.; () Vol. TP-10
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
033000* -- Natural Gas-- Properties & Composition
ALKANES
CHALCOGENIDES
CHEMICAL REACTIONS
DATA
DECOMPOSITION
EXPERIMENTAL DATA
GAS HYDRATES
HYDRATES
HYDROCARBONS
HYDROGEN COMPOUNDS
HYDROGEN SULFIDES
INFORMATION
METHANE
NUMERICAL DATA
ORGANIC COMPOUNDS
PHASE STUDIES
PHASE TRANSFORMATIONS
PRESSURE DEPENDENCE
PROPANE
SULFIDES
SULFUR COMPOUNDS
TEMPERATURE DEPENDENCE