| A Study on Inhibitors for the Prevention of Hydrate Formation in Gas Transmission Pipeline |
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| 引用本文： | Ming Wu Shumiao Wang Hongbo Liu. A Study on Inhibitors for the Prevention of Hydrate Formation in Gas Transmission Pipeline[J]. 天然气化学杂志, 2007, 16(1): 81-85. DOI: 10.1016/S1003-9953(07)60031-0 |
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| 作者姓名： | Ming Wu Shumiao Wang Hongbo Liu |
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| 作者单位： | [1]Department of Storage and Architecture Engineering, Liaoning University of Petroleum and Chemical Technology, Fushun 113001, Liaoning, China [2]R ＆D Center, Xinao Group, Langfang 065001, Hebei, China [3]China Petroleum Pipeline Engineering Corporation, Langfang 065000, Hebei, China |
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| 摘 要： | Gas Hydrate is usually formed during the transportation and treatment of oil and gas, resulting in the plugging of gas pipeline and equipment. Three thermodynamic calculation formulas are analyzed to deal with this problem. The lowering of the freezing point of the inhibitors AT is used to calculate the formation temperature of natural gas hydrates. This is considered to be a good approach because it is not limited by what kind and what concentration of inhibitors one uses. Besides, the rate of lowering of the freezing point could be easily measured. The result of testing methanol and mono-ethylene glycol in a reactor shows that adding 10% inhibitors to the reactor can prevent the hydrates formation. Kinetic inhibitors are favored in the present research. They are divided into two types, polymer and surface-active agents. Their characteristics, mechanisms, and application prospect are separately discussed. Polymer inhibitors exhibit better efficiency. The result of field application of VC-713 inhibiter is also given in this article. In practice, the combination of thermodynamic inhibitors and kinetic inhibitors gives better result.
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| 关 键 词： | 油气输送管道 天然气水合物形成 预防 抑制剂 表面活性剂 |
| 收稿时间： | 2006-08-18 |
| 修稿时间： | 2006-10-27 |
A Study on Inhibitors for the Prevention of Hydrate Formation in Gas Transmission Pipeline |
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| Ming Wu,Shumiao Wang,Hongbo Liu. A Study on Inhibitors for the Prevention of Hydrate Formation in Gas Transmission Pipeline[J]. Journal of Natural Gas Chemistry, 2007, 16(1): 81-85. DOI: 10.1016/S1003-9953(07)60031-0 |
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| Authors: | Ming Wu Shumiao Wang Hongbo Liu |
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| Affiliation: | aDepartment of Storage and Architecture Engineering, Liaoning University of Petroleum and Chemical Technology, Fushun 113001, Liaoning, China;bR & D Center, Xinao Group, Langfang 065001, Hebei, China;cChina Petroleum Pipeline Engineering Corporation, Langfang 065000, Hebei, China |
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| Abstract: | Gas Hydrate is usually formed during the transportation and treatment of oil and gas,resulting in the plugging of gas pipeline and equipment. Three thermodynanic calculation formulas are analyzed to deal with this problem. The lowering of the freezing point of the inhibitors △T is used to calculate the formation temperature of natural gas hydrates. This is. considered to be a good approach because it is not limited by what kind and what concentration of inhibitors one uses. Besides, the rate of lowering of the freezing point could be easily measured. The result of testing methanol and mono-ethylene glycol in a reactor shows that adding 10% inhibitors to the reactor can prevent the hydrates formation.Kinetic inhibitors are favored in the present research. They are divided into two types, polymer and surface-active agents. Their characteristics, mechanisms, and application prospect are separately discussed.Polymer inhibitors exhibit better efficiency. The result of field application of VC-713 inhibiter is also given in this article. In practice, the combination of thermodynamic inhibitors and kinetic inhibitors gives better result. |
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| Keywords: | natural gas hydrate thermodynamic inhibitor kinetic inhibitor polymer surface-active agents |
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