气候变化领域集成服务门户(CCPortal): Superior seedlings propagating growth pattern of hydrates

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DOI	10.1016/j.cej.2021.131842
	Superior seedlings propagating growth pattern of hydrates
	Zhang, Peng; Li, Shuaijun; Chen, Xueping; Chen, Wenting; Wu, Qingbai; Zhang, Lianhai; Zhan, Jing; Wang, Yingmei
通讯作者	Wu, QB (通讯作者)，Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, State Key Lab Frozen Soil Engn, Lanzhou 730000, Peoples R China.
发表日期	2022
ISSN	1385-8947
EISSN	1873-3212
卷号	427
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.
关键词	METHANE HYDRATE GAS HYDRATE FORMATION KINETICS CARBON DISSOCIATION NUCLEATION WATER
英文关键词	Gas hydrates; Formation mechanism; Hydrate seedlings; Positions superiority
语种	英语
WOS研究方向	Engineering
WOS类目	Engineering, Environmental ; Engineering, Chemical
WOS记录号	WOS:000729676700001
来源期刊	CHEMICAL ENGINEERING JOURNAL
来源机构	中国科学院西北生态环境资源研究院
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/253968
作者单位	[Zhang, Peng; Li, Shuaijun; Chen, Xueping; Chen, Wenting; Wu, Qingbai; Zhang, Lianhai; Zhan, Jing] Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, State Key Lab Frozen Soil Engn, Lanzhou 730000, Peoples R China; [Li, Shuaijun; Chen, Xueping; Chen, Wenting] Univ Chinese Acad Sci, Beijing 100049, Peoples R China; [Wang, Yingmei] Lanzhou Univ Technol, Western Energy & Environm Res Ctr China, Lanzhou 730050, Peoples R 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]. 中国科学院西北生态环境资源研究院,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).