Effects of wax on CH4 hydrate formation and agglomeration in oil-water emulsions
文献类型：期刊论文
| 作者 | Liu, Jia1,2,3; Wang, Jing1,2,3; Dong, Ti2; Liang, Deqing2,3
|
| 刊名 | FUEL
 |
| 出版日期 | 2022-08-15 |
| 卷号 | 322页码:9 |
| 关键词 | Hydrate Wax crystals Nucleation Hydrate growth Aggregation |
| ISSN号 | 0016-2361 |
| DOI | 10.1016/j.fuel.2022.124128 |
| 通讯作者 | Liang, Deqing(liangdq@ms.giec.ac.cn) |
| 英文摘要 | The solid sediments, resulted from hydrate formation and wax crystallization in crude oil, may generate catastrophic blockage in the pipeline under adverse conditions; this poses a formidable threat to the transportation of deep-sea crude oil. To shed light on the mechanism of the effects of waxes and hydrates in deep-sea crude oil under coexisting conditions, this work systematically investigates the effects of wax crystal precipitation and hydrate formation time-series on hydrate nucleation, growth, aggregation, and crystal structure in oil-water emulsions through experiments. Research results demonstrate that the time sequence of wax crystal precipitation and hydrate formation is concerned with the possibility of significant solid deposit formation; when wax crystal precipitation precedes hydrate formation, the wax crystals inhibit hydrate nucleation and growth; conversely, when hydrate formation precedes wax crystal precipitation, the wax significantly reduces hydrate particle aggregation, which in turn improves the flow characteristics of the hydrate slurry. Additionally, the microscopic analysis further reveals that the presence of wax has no effect on the crystal structure of CH4 hydrate, yet it has a significant effect on the distribution of CH4 in the cavities, i.e. it reduces the occupancy of large cages. |
| WOS关键词 | METHANE HYDRATE ; ANTI-AGGLOMERANT ; INDUCTION TIME ; MECHANISM ; INSIGHTS ; NUCLEATION ; GROWTH ; SLURRY ; MODEL |
| 资助项目 | Guangdong Major project of Basic and Applied Basic Research[2020B0301030003] ; Guangdong Special Support Program-Local innovation and entrepreneurship team project[2019BT02L278] ; Natural Science Foundation of Guangdong Province[2021A1515110698] ; Fund of Key Laboratory of Gas Hydrate Chinese Academy of Sciences[E129020301] |
| WOS研究方向 | Energy & Fuels ; Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000799813700004 |
| 出版者 | ELSEVIER SCI LTD |
| 资助机构 | Guangdong Major project of Basic and Applied Basic Research ; Guangdong Special Support Program-Local innovation and entrepreneurship team project ; Natural Science Foundation of Guangdong Province ; Fund of Key Laboratory of Gas Hydrate Chinese Academy of Sciences |
| 源URL | [http://ir.giec.ac.cn/handle/344007/36605]  |
| 专题 | 中国科学院广州能源研究所 |
| 通讯作者 | Liang, Deqing |
| 作者单位 | 1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou 510640, Guangdong, Peoples R China 3.CAS Key Lab Gas Hydrate, Guangzhou 510640, Guangdong, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu, Jia,Wang, Jing,Dong, Ti,et al. Effects of wax on CH4 hydrate formation and agglomeration in oil-water emulsions[J]. FUEL,2022,322:9. |
| APA | Liu, Jia,Wang, Jing,Dong, Ti,&Liang, Deqing.(2022).Effects of wax on CH4 hydrate formation and agglomeration in oil-water emulsions.FUEL,322,9. |
| MLA | Liu, Jia,et al."Effects of wax on CH4 hydrate formation and agglomeration in oil-water emulsions".FUEL 322(2022):9. |
入库方式： OAI收割
来源：广州能源研究所
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