Thermodynamics Prediction of Wax Precipitation in Black Oil Using Regular Solution Model and Plus Fraction Characterization
The precipitation of wax/solid paraffin during production, transportation, and processing of crude oil is a serious problem. It is essential to have a reliable model to predict the wax appearance temperature and the amount of solid precipitated at different conditions. This paper presents a work to...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
SAGE Publishing
2013-01-01
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| Series: | Advances in Mechanical Engineering |
| Online Access: | https://doi.org/10.1155/2013/829591 |
| _version_ | 1818131872985645056 |
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| author | Wei Wang Kunyi Wu Jimiao Duan Pengyu Wang Jing Gong |
| author_facet | Wei Wang Kunyi Wu Jimiao Duan Pengyu Wang Jing Gong |
| author_sort | Wei Wang |
| collection | DOAJ |
| description | The precipitation of wax/solid paraffin during production, transportation, and processing of crude oil is a serious problem. It is essential to have a reliable model to predict the wax appearance temperature and the amount of solid precipitated at different conditions. This paper presents a work to predict the solid precipitation based on solid-liquid equilibrium with regular solution-molecular thermodynamic theory and characterization of the crude oil plus fraction. Due to the differences of solubility characteristics between solid and liquid phase, the solubility parameters of liquid and solid phase are calculated by a modified model. The heat capacity change between solid and liquid phase is considered and estimated in the thermodynamic model. An activity coefficient based thermodynamic method combined with two characteristic methods to calculate wax precipitation in crude oil, especially heavy oil, has been tested with experimental data. The results show that the wax appearance temperature and the amount of weight precipitated can be predicted well with the experimental data. |
| first_indexed | 2024-12-11T08:27:51Z |
| format | Article |
| id | doaj.art-15c7b27e87844ae78a3de3fcb87a3071 |
| institution | Directory Open Access Journal |
| issn | 1687-8132 |
| language | English |
| last_indexed | 2024-12-11T08:27:51Z |
| publishDate | 2013-01-01 |
| publisher | SAGE Publishing |
| record_format | Article |
| series | Advances in Mechanical Engineering |
| spelling | doaj.art-15c7b27e87844ae78a3de3fcb87a30712022-12-22T01:14:31ZengSAGE PublishingAdvances in Mechanical Engineering1687-81322013-01-01510.1155/2013/82959110.1155_2013/829591Thermodynamics Prediction of Wax Precipitation in Black Oil Using Regular Solution Model and Plus Fraction CharacterizationWei WangKunyi WuJimiao DuanPengyu WangJing GongThe precipitation of wax/solid paraffin during production, transportation, and processing of crude oil is a serious problem. It is essential to have a reliable model to predict the wax appearance temperature and the amount of solid precipitated at different conditions. This paper presents a work to predict the solid precipitation based on solid-liquid equilibrium with regular solution-molecular thermodynamic theory and characterization of the crude oil plus fraction. Due to the differences of solubility characteristics between solid and liquid phase, the solubility parameters of liquid and solid phase are calculated by a modified model. The heat capacity change between solid and liquid phase is considered and estimated in the thermodynamic model. An activity coefficient based thermodynamic method combined with two characteristic methods to calculate wax precipitation in crude oil, especially heavy oil, has been tested with experimental data. The results show that the wax appearance temperature and the amount of weight precipitated can be predicted well with the experimental data.https://doi.org/10.1155/2013/829591 |
| spellingShingle | Wei Wang Kunyi Wu Jimiao Duan Pengyu Wang Jing Gong Thermodynamics Prediction of Wax Precipitation in Black Oil Using Regular Solution Model and Plus Fraction Characterization Advances in Mechanical Engineering |
| title | Thermodynamics Prediction of Wax Precipitation in Black Oil Using Regular Solution Model and Plus Fraction Characterization |
| title_full | Thermodynamics Prediction of Wax Precipitation in Black Oil Using Regular Solution Model and Plus Fraction Characterization |
| title_fullStr | Thermodynamics Prediction of Wax Precipitation in Black Oil Using Regular Solution Model and Plus Fraction Characterization |
| title_full_unstemmed | Thermodynamics Prediction of Wax Precipitation in Black Oil Using Regular Solution Model and Plus Fraction Characterization |
| title_short | Thermodynamics Prediction of Wax Precipitation in Black Oil Using Regular Solution Model and Plus Fraction Characterization |
| title_sort | thermodynamics prediction of wax precipitation in black oil using regular solution model and plus fraction characterization |
| url | https://doi.org/10.1155/2013/829591 |
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