Experimental determination of refractive index of gas hydrates

被引:30
作者
Bylov, M [1 ]
Rasmussen, P [1 ]
机构
[1] DTU,DK-2800 LYNGBY,DENMARK
关键词
refractive index; gas hydrate; experimental; memory effect; growth rate; induction time;
D O I
10.1016/S0009-2509(97)00144-9
中图分类号
TQ [化学工业];
学科分类号
0817 ;
摘要
The refractive indexes of methane hydrate and natural gas hydrate have been experimentally determined. The refractive indexes were determined in an indirect manner making use of the fact that two non-absorbing materials will have the same refractive index if they cannot be distinguished visually. For methane hydrate (structure I) the refractive index was found to be 1.346 and for natural gas hydrate (structure II) it was found to be 1.350. The measurements further suggest that the gas hydrate growth rate increases if the water has formed hydrates before. The induction time, on the other hand, seems to be unaffected by the history of the water. (C) 1997 Elsevier Science Ltd.
引用
收藏
页码:3295 / 3301
页数:7
相关论文
共 6 条
[1]   CALCULATION OF THE REFRACTIVE-INDEX OF PURE GAS HYDRATES USING A MODIFIED LORENZ-LORENTZ MODEL - APPLICATION TO METHANE HYDRATE [J].
HERRI, JM ;
GRUY, F .
MATERIALS CHEMISTRY AND PHYSICS, 1995, 42 (01) :51-55
[2]   LIGHT-SCATTERING KINETICS STUDY OF CYCLOPROPANE HYDRATE GROWTH [J].
MONFORT, JP ;
NZIHOU, A .
JOURNAL OF CRYSTAL GROWTH, 1993, 128 (1-4) :1182-1186
[3]   COMPUTATIONS OF THE FORMATION OF GAS HYDRATES [J].
MUNCK, J ;
SKJOLDJORGENSEN, S ;
RASMUSSEN, P .
CHEMICAL ENGINEERING SCIENCE, 1988, 43 (10) :2661-2672
[4]   OPTICAL-PROPERTIES OF LIQUIDS UNDER PRESSURE [J].
OMINI, M .
JOURNAL DE PHYSIQUE, 1978, 39 (08) :847-861
[5]  
Sloan E.D., 1990, CLATHRATE HYDRATES N
[6]  
1996, METHOD DOCUMENTATION