| 孔隙尺寸、盐度和气体组分对水合物相平衡的影响(英文) |
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| 引用本文： | 杨明军,宋永臣,刘瑜,陈拥军,李清平.孔隙尺寸、盐度和气体组分对水合物相平衡的影响(英文)[J].中国化学工程学报,2010,18(2):292-296. |
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| 作者姓名： | 杨明军 宋永臣 刘瑜 陈拥军 李清平 |
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| 作者单位： | 1. Key Laboratory of Ocean Energy Utilization and Energy Conservation of Ministry of Education, Dalian Univer-sity of Technology, Dalian 116024, China;2. China National Offshore Oil Corporation Research Center, Beijing 100027, China |
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| 基金项目： | the Key Program of National Natural Science Foundation of China，the National H Research and Development Program of China，the Major State Basic Research Development Program of China |
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| 摘 要： | An experimental device was set up to study the hydrate formation conditions. Effects of pore size, salinity, and gas composition on the formation and dissociation of hydrates were investigated. The result indicates that the induction time for the formation of hydrates in porous media is shorter than that in pure water. The decrease in pore size, by decreasing the size of glass beads, increases the equilibrium pressure when the salinity and temperature are kept constant. In addition, higher salinity causes higher equilibrium pressure when the pore size and temperature are kept constant. It is found that the effects of pore size and salinity on the hydrate equilibrium are quite different. At lower methane concentration, the hydrate equilibrium is achieved at lower pressure and higher temperature.
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| 关 键 词： | hydrate equilibrium pore size salinity gas composition |
| 收稿时间： | 2009-3-26 |
| 修稿时间： | 2009-3-26
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Influence of pore size, salinity and gas composition upon the hydrate formation conditions |
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| YANG Mingjun,SONG Yongchen,LIU Yu,CHEN Yongjun,LI Qingping.Influence of pore size, salinity and gas composition upon the hydrate formation conditions[J].Chinese Journal of Chemical Engineering,2010,18(2):292-296. |
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| Authors: | YANG Mingjun SONG Yongchen LIU Yu CHEN Yongjun LI Qingping |
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| Affiliation: | 1. Key Laboratory of Ocean Energy Utilization and Energy Conservation of Ministry of Education, Dalian Univer-sity of Technology, Dalian 116024, China;2. China National Offshore Oil Corporation Research Center, Beijing 100027, China |
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| Abstract: | An experimental device was set up to study the hydrate formation conditions.Effects of pore size,salinity,and gas composition on the formation and dissociation of hydrates were investigated.The result indicates that the induction time for the formation of hydrates in porous media is shorter than that in pure water.The decrease in pore size,by decreasing the size of glass beads,increases the equilibrium pressure when the salinity and temperature are kept constant.Inaddition,higher salinity causes higher equilibrium pressure when the pore size and temperature are kept constant.It is found that the effects of pore size and salinity on the hydrate equilibrium are quite different.At lower methane concentration,the hydrate equilibrium is achieved at lower pressure and higher temperature. |
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| Keywords: | hydrate equilibrium pore size salinity gas composition |
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