Superior seedlings propagating growth pattern of hydrates

doi:10.1016/j.cej.2021.131842

	Superior seedlings propagating growth pattern of hydrates
	Zhang, Peng 1; Li, Shuaijun 1,3; Chen, Xueping 1,3; Chen, Wenting 1,3; Wu, Qingbai 1; Zhang, Lianhai 1; Zhan, Jing 1; Wang, Yingmei 2
刊名	Chemical Engineering Journal
	2022
卷号	427
关键词	Crystallization Gas hydrates Heat conduction Nucleation Phase interfaces Video cameras Crystals structures Experimental apparatus Formation mechanism Growth patterns Growth process Hydrate formation process Hydrate growth Hydrate seedling Linear relation Position superiority
ISSN号	13858947
DOI	10.1016/j.cej.2021.131842
英文摘要	Facing complicated hydrate formation processes and dozens of models’ establishments with an attempt to unravel the hidden mechanisms, many parameters have been considered from lots of viewpoints affecting specific hydrate growth process. It appears that incorporating various models into a unique uniform one to account for all formation behaviours seems impossible. Another line of thought is then investigated, i.e. if skipping over complicated specific growth process, whether there is some direct relation between initial nucleation and finally-formed bulk hydrate crystals. Within an experimental apparatus with specially designed structures, one-sided cooling method only from top was used to drag hydrate crystal structures growing upwards from gas-liquid interface. Complete formation processes from initial gas dissolution to final growth termination were then observed through video cameras. It is found that like pea seedlings growth pattern, finally formed bulk crystal structures are in fact propagated from a few initial hydrate embryos and there are significant linear relations between initial nucleation dynamics and final hydration numbers. Some special positions of equipment possess obvious superiority to induce hydrate embryos occurrence, e.g. the four corners of reactor, among which the two adjacent to this reactor wall with more rapid heat conduction are facilitated. The trend lines directions of linear relations are completely opposite, meaning that mechanisms dominating specific growth processes of hydrate crystals are actually disparate under different methods. Final formation reaction efficiency can be achieved by increasing initial nucleation dynamics substantially. Some instructive suggestions on practical applications related with hydrates, e.g. industrial process design, prediction to blocking position owing to hydrates, hydrate formation inhibition by means of physical method etc., may be proposed through these summarized conclusions. © 2021 Elsevier B.V.
WOS研究方向	Engineering
语种	英语
出版者	Elsevier B.V.
WOS记录号	WOS:000729676700001
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/151053]
专题	能源与动力工程学院
作者单位	1.State Key Laboratory of Frozen Soil Engineering, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, 730000, China; 2.Western Energy & Environment Research Center of China, Lanzhou University of Technology, Lanzhou; 730050, China 3.University of Chinese Academy of Sciences, Beijing; 100049, China;
推荐引用方式 GB/T 7714	Zhang, Peng,Li, Shuaijun,Chen, Xueping,et al. Superior seedlings propagating growth pattern of hydrates[J]. Chemical Engineering Journal,2022,427.
APA	Zhang, Peng.,Li, Shuaijun.,Chen, Xueping.,Chen, Wenting.,Wu, Qingbai.,...&Wang, Yingmei.(2022).Superior seedlings propagating growth pattern of hydrates.Chemical Engineering Journal,427.
MLA	Zhang, Peng,et al."Superior seedlings propagating growth pattern of hydrates".Chemical Engineering Journal 427(2022).