Non-linear optimization of high-pressure gas networks with respect to hydrate control
Non-linear optimization of high-pressure gas networks with respect to hydrate control
- New search for: Osiadacz, Andrzej J.
- New search for: Uilhoorn, Ferdinand E.
- New search for: Chaczykowski, Maciej
- New search for: Osiadacz, Andrzej J.
- New search for: Uilhoorn, Ferdinand E.
- New search for: Chaczykowski, Maciej
In this paper, gas pipeline optimization includes constraints resulting from hydrate prevention. The key is to seek for the optimal settings of both: the compressor units and hydrate combating method at minimum fuel consumption subject to security of supply and hydrate prevention. A case study is conducted on the Polish section of the Yamal pipeline and an arbitrarily selected partial onshore and offshore pipeline. Three different configurations are investigated: (i) cooling the compressed gas, (ii) no cooling and (iii) line heating immediately after the compressor station. For each configuration, the fuel consumption of the compressors is minimized and in order to prevent hydrate formation, the outlet temperature of the line heater, allowable water vapour in the gas and methanol concentration are calculated for each pipe section. The hydrate model is based on the statistical mechanical approach of Van der Waals and Platteeuw and applicable for systems that contain water (free or dissolved in gas), methanol and mixed gases both hydrate and non-hydrate formers.
Document information
Non-linear optimization of high-pressure gas networks with respect to hydrate control
Archives of Mining Sciences ; 57 , 3 ; 627-643
2012
17 Seiten, 17 Quellen
Article (Journal)
English
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