典型文献
Methane hydrate crystal growth on shell substrate
文献摘要：
Hydrate crystals growth on the surface of methane bubble(hydrate film)in pure water was studied by using a high-pressure visible microscope under the conditions of subcooling △T = 5.44-13.72 K and methane concentration difference △C = 2.92-8.19 mol·L-1.It was found the hydrate film is porous and the hydrate crystals grow towards the liquid phase on the film substrate.The crystal morphology and growth rate are affected by △T and △C.When △T＜8.82 K and △C＜4.12 mol·L-1,the hydrate grows into scattered columnar crystals,and the axial growth rate of the crystal gradually decreases.When△T＞8.82 K or △C＞4.12 mol·L 1,the hydrate crystals grow in dendritic shape,and the axial growth rate increases first and then decreases.The perimeter and area of the growing hydrate crystals were mea-sured,and the fractal dimension of hydrate crystal under different △C and △T was calculated.The results show that the fractal dimension of columnar hydrate crystal is greater than 3.When 3.87 mol·L-1＜△C＜4.20 mol·L-1 and 7.4 K＜△T＜8.8 K,the fractal dimension of columnar hydrate crystal is greater than 4;The fractal dimension of dendritic hydrate crystal is less than 3.When △C＞4.77 mol·L-1,△T＜8.52 K,the fractal dimension of dendritic hydrate crystal is less than 2.
文献关键词：
中图分类号：
作者姓名：
Xin Jiang;Baojiang Sun;Zhiyuan Wang;Wantian Zhou;Jiakai Ji;Litao Chen
作者机构：
School of Petroleum Engineering,China University of Petroleum(East China),Qingdao 266580,China;Key Laboratory of Unconventional Oil and Gas Development,China University of Petroleum(East China),Qingdao 266580,China
文献出处：
引用格式：
[1]Xin Jiang;Baojiang Sun;Zhiyuan Wang;Wantian Zhou;Jiakai Ji;Litao Chen-.Methane hydrate crystal growth on shell substrate)[J].中国化学工程学报（英文版）,2022(03):50-61
A类：
subcooling
B类：
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AB值：
0.385192
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