蒸馏水和自来水中悬浮气泡表面天然气水合物生长特性的实验研究

doi:10.16085/j.issn.1000-6613.2017.01.017

化工进展 ›› 2017, Vol. 36 ›› Issue (01): 129-135.DOI: 10.16085/j.issn.1000-6613.2017.01.017

蒸馏水和自来水中悬浮气泡表面天然气水合物生长特性的实验研究

谢育博, 刘道平, 杨亮, 杨梦

上海理工大学能源与动力工程学院新能源科学与工程研究所;上海理工大学流动控制与仿真重点实验室, 上海 200093

收稿日期:2016-06-24 修回日期:2016-07-25 出版日期:2017-01-05 发布日期:2017-01-05
通讯作者: 刘道平,教授。E-mail:dpliu@usst.edu.cn。
作者简介:谢育博(1991-),男,硕士研究生。
基金资助:
上海市研究生创新基金（JWCXSL1302）及上海市教育委员会科研创新项目（13ZZ117）。

Experimental study on the growth characteristics of natural gas hydrate formation on suspended gas bubbles in distilled water and tap water

XIE Yubo, LIU Daoping, YANG Liang, YANG Meng

Institute of New Energy Science and Engineering, Key Laboratory of Flow Control and Simulation, School of Energy and Power Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China

Received:2016-06-24 Revised:2016-07-25 Online:2017-01-05 Published:2017-01-05

摘要/Abstract

摘要： 在275.2K条件下开展了静止悬浮气泡表面形成天然气水合物的可视化实验研究，分析探讨了水中杂质对天然气水合物的成核时间、生长时间和生长形态的影响。研究结果表明：蒸馏水和自来水对水合物的成核时间和生长时间影响不大，但是在蒸馏水中的悬浮气泡表面形成的水合物膜表面比较光滑致密，且易出现裂缝并重新生成水合物晶体；在自来水中由于杂质离子的存在，气泡表面水合物膜有许多窟窿无法生成水合物；添加表面活性剂的水溶液能显著缩短悬浮气泡表面形成水合物的成核时间和生长时间，提高了水合物的生成速率，且对水合物的生长形态也有很大的影响。在相同驱动力条件下，添加表面活性剂的水溶液中悬浮气泡表面形成的天然气水合物晶体颜色更加深暗，质地也更光滑致密。

关键词: 天然气, 气泡, 膜, 水合物, 杂质, 生长形态

Abstract: The visualization experiments of natural gas hydrate formation on suspended gas bubble surfaces were carried out under the condition of initial temperature of 275.2K. The influence of impurities on the nucleation time,growth time and growth shape of natural gas hydrate were analyzed and discussed. The results showed that the distilled water and tap water had little effect on hydrate nucleation time and growth time,but the hydrate film formed on the surfaces of the gas bubble in the distilled water was relatively smooth,dense and tends to crack,but the crack would be quickly filled with new hydrate crystals. There were many holes cannot form hydrate on the hydrate film of gas bubbles because of the tap water contains many impurities. Aqueous solution with SDS significantly reduced the nucleation time and growth time of the hydrate formation on the suspended gas bubble surfaces,improved the rate of hydrate formation and had a great influence on the hydrate growth morphology. The natural gas hydrate crystals formed on the suspended gas bubble surfaces in the aqueous solution with SDS were darker and the texture was more smooth and dense under the same driving force conditions.

Key words: natural gas, bubble, film, hydrate, impurity, growth morphology

中图分类号:

谢育博, 刘道平, 杨亮, 杨梦. 蒸馏水和自来水中悬浮气泡表面天然气水合物生长特性的实验研究[J]. 化工进展, 2017, 36(01): 129-135.

XIE Yubo, LIU Daoping, YANG Liang, YANG Meng. Experimental study on the growth characteristics of natural gas hydrate formation on suspended gas bubbles in distilled water and tap water[J]. Chemical Industry and Engineering Progree, 2017, 36(01): 129-135.

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蒸馏水和自来水中悬浮气泡表面天然气水合物生长特性的实验研究

Experimental study on the growth characteristics of natural gas hydrate formation on suspended gas bubbles in distilled water and tap water

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