Uniqueness of the equilibrium relationship among temperature, pressure and liquid water content in hydrate-bearing soils
文献类型：期刊论文
| 作者 | Liang, Wenpeng1,2; Zhou, Jiazuo1,2; Wei, Changfu1,2 |
| 刊名 | JOURNAL OF NATURAL GAS SCIENCE AND ENGINEERING
 |
| 出版日期 | 2021-04-01 |
| 卷号 | 88页码:9 |
| 关键词 | Hydrate-bearing soil Phase equilibrium condition Dissociation curve Phase boundary Unhydrated water content |
| ISSN号 | 1875-5100 |
| DOI | 10.1016/j.jngse.2021.103820 |
| 英文摘要 | The dissociation curves of pore hydrate, conventionally depicted on the P-T plane, depend generally upon the adopted experimental conditions. In this paper, the experimental results are presented on the phase equilibrium conditions for the hydrate-bearing soils (HBS) at different initial water contents, amounts of the dissolvable salt and initial vessel pressures. It is shown that a unique relationship exists between the unhydrated liquid water content and the temperature shift induced by capillary and osmotic effects, if the total amount of the dissolvable salt in the pore water is given. A theoretical model is developed, which can describe a general relationship among pressure, temperature and unhydrated water content for the hydrate-bearing soils in equilibrium. It is shown that the experimental results obtained under different experimental conditions can be very well described by the proposed model. In particular, the new model predicts that, independent of pressure and temperature, the liquid water content can be one-to-one related to the temperature shift to the extent that the total amount of the dissolvable salt is specified. Based on this, a new procedure is proposed to predict the dissociate curves associated with hydrate dissociation under different experimental conditions. |
| 资助项目 | National Science Foundation of China (NSFC)[51939011] ; National Science Foundation of China (NSFC)[51639008] ; National Science Foundation of China (NSFC)[11962004] ; National Science Foundation of China (NSFC)[41602312] ; National Science Foundation of China (NSFC)[41572293] |
| WOS研究方向 | Energy & Fuels ; Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000651814900039 |
| 出版者 | ELSEVIER SCI LTD |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/27096]  |
| 专题 | 中科院武汉岩土力学所 |
| 通讯作者 | Wei, Changfu |
| 作者单位 | 1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liang, Wenpeng,Zhou, Jiazuo,Wei, Changfu. Uniqueness of the equilibrium relationship among temperature, pressure and liquid water content in hydrate-bearing soils[J]. JOURNAL OF NATURAL GAS SCIENCE AND ENGINEERING,2021,88:9. |
| APA | Liang, Wenpeng,Zhou, Jiazuo,&Wei, Changfu.(2021).Uniqueness of the equilibrium relationship among temperature, pressure and liquid water content in hydrate-bearing soils.JOURNAL OF NATURAL GAS SCIENCE AND ENGINEERING,88,9. |
| MLA | Liang, Wenpeng,et al."Uniqueness of the equilibrium relationship among temperature, pressure and liquid water content in hydrate-bearing soils".JOURNAL OF NATURAL GAS SCIENCE AND ENGINEERING 88(2021):9. |
入库方式： OAI收割
来源：武汉岩土力学研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。