悬垂水滴表面天然气水合物的生长特性

›› 2008, Vol. 8 ›› Issue (4): 746-750.

悬垂水滴表面天然气水合物的生长特性

钟栋梁刘道平邬志敏张亮伍德虎

上海理工大学动力工程学院上海理工大学动力工程学院上海理工大学动力工程学院上海理工大学动力工程学院上海理工大学动力工程学院

收稿日期:2008-03-24 修回日期:2008-05-08 出版日期:2008-08-20 发布日期:2008-08-20
通讯作者: 钟栋梁

Characteristics of Natural Gas Hydrate Growth on the Pendant Water Droplet

ZHOGN Dong-liang LIU Dao-ping WU Zhi-min ZHANG Liang WU De-hu

Institute of Refrigeration Technology, University of Shanghai for Science and Technology Power Engineering College, University of Shanghai for Science and Technology Institute of Refrigeration Technology, University of Shanghai for Science and Technology Power Engineering College, University of Shanghai for Science and Technology

Received:2008-03-24 Revised:2008-05-08 Online:2008-08-20 Published:2008-08-20
Contact: ZHOGN Dong-liang

摘要/Abstract

摘要： 针对天然气水合物的喷雾法制备，设计并搭建了悬垂水滴显微实验装置，研究了不同温度和压力条件下天然气水合物在悬垂水滴表面的生长形态，建立了水滴表面水合物膜的生长模型，并通过实验研究了驱动力、过冷度、水合反应速率、气体扩散速率及十二烷基硫酸钠(SDS)浓度对水合物膜生长的影响. 结果表明，水合物膜的生长速率随过冷度的增加而增加，实验条件下测得水滴表面水合物膜的生长率为0.24~0.39 mm/s. 水滴表面水合物膜的生长为内扩散控制，水合物的活化能为13.01 kJ/mol. 当SDS浓度为550 mg/L时，界面反应速率常数有最大值0.0027 m/s.

关键词: 天然气水合物, 水滴, 生长特性, 喷雾

Abstract: Aiming at the water spray formation of natural gas hydrate, a set of experimental apparatus was designed and built to study the natural gas hydrate formation on the pendant water droplet, the growth morphology of gas hydrate on the pendant water droplet under different pressures and temperatures was observed. The growth model of hydrate film on the surface of water droplet was established, and the effects of driving force, subcooling, hydration reaction rate, gas diffusivity and sodium dodecyl sulfate (SDS) concentration on the hydrate film growth were investigated. The results showed that the growth rate of hydrate film increased with the increase of subcooling degree, the measured growth rate was between 0.24 and 0.39 mm/s. The hydrate growth was inside diffusion control, the activation energy of natural gas hydrate was 13.01 kJ/mol. The reaction rate constant on the reaction interface had the maximum value of 0.0027 m/s with SDS concentration in 550 mg/L.

Key words: natural gas hydrate, water droplet, growth characteristics, water spray

中图分类号:

钟栋梁刘道平邬志敏张亮伍德虎. 悬垂水滴表面天然气水合物的生长特性[J]. , 2008, 8(4): 746-750.

ZHOGN Dong-liang LIU Dao-ping WU Zhi-min ZHANG Liang WU De-hu. Characteristics of Natural Gas Hydrate Growth on the Pendant Water Droplet[J]. , 2008, 8(4): 746-750.

[1]	马炯政郭建英刘生玉常承兵温全宝. Ramichloridium apiculatum生长特性及其对钙长石中Ca²⁺和Mg²⁺浸出的研究[J]. 过程工程学报, 2024, 24(8): 982-992.
[2]	周年勇赵英杰刘阳邹有鑫唐光华鲍庆国吕文宇. 以乙二醇水溶液为基液的纳米流体喷雾冷却传热特性研究[J]. 过程工程学报, 2024, 24(5): 514-522.
[3]	高健洪润董文龙许年楚化强. 闪沸喷雾的研究现状与展望[J]. 过程工程学报, 2024, 24(3): 273-283.
[4]	黄硕胡雨欣沙露平刘剑桥郭永学. 响应曲面法优化植物甾醇固体自微乳的工艺条件[J]. 过程工程学报, 2022, 22(4): 533-541.
[5]	张学民李银辉张山岭张梦军李金平王英梅. 多孔介质中CO₂-CH₄水合物置换过程的强化方法研究进展[J]. 过程工程学报, 2022, 22(4): 438-447.
[6]	陶源清颜克凤李小森陈浩. 盐离子对蒙脱石水化膨胀特性的影响[J]. 过程工程学报, 2020, 20(10): 1182-1189.
[7]	宋震李凯莉孙嘉航吕忠蕾. 海洋天然气水合物储层拉削开采新方法及可行性分析[J]. 过程工程学报, 2020, 20(10): 1234-1240.
[8]	李学峰何霞王国荣邱顺佐周守为刘清友. 天然气水合物提纯螺旋分离器性能数值模拟[J]. 过程工程学报, 2019, 19(3): 510-515.
[9]	邱顺佐王国荣王广申周守为刘清友钟林王雷振. 旋流分离对天然气水合物除砂提纯的影响[J]. 过程工程学报, 2019, 19(1): 64-72.
[10]	胡多多张引弟刘畅. O₂/H₂O气氛下CH₄燃烧特性与置换天然气水合物联产方案[J]. 过程工程学报, 2018, 18(5): 1102-1111.
[11]	陈浩吴文科吕斌陈靖文付来强尹钢. 用双锥-内锥型水力旋流器提纯海洋天然气水合物浆体[J]. 过程工程学报, 2018, 18(3): 491-495.
[12]	张学民李金平吴青柏王春龙南军虎. CO2置换天然气水合物中CH4的研究进展[J]. , 2014, 14(4): 715-720.
[13]	梁辰王清亭周辉王丽卫赵兵. 玛咖速溶粉制备及其性能[J]. , 2013, 13(3): 488-493.
[14]	吴志文胡彦杰李春忠. 喷雾燃烧制备SnO2纳米棒及其气敏性能[J]. , 2012, 12(2): 330-334.
[15]	钟栋梁杨晨刘道平邬志敏. 喷雾反应器中二氧化碳水合物的生长实验研究[J]. , 2010, 10(2): 309-313.