Effect of Propane and NaCl-SDS Solution on Nucleation Process of Mine Gas Hydrate

Table 3

The induction time of mine gas hydrate formation in NaCl-SDS system.

Experiment number	Gas sample	NaCl concentration (wt%)	SDS (mol/L)	Experiment condition		Induction time (min)			Average induction time (min)
				Initial pressure (MPa)	Initial temperature (K)	The first	The second	The third
I-1	G1	0.5%	0.15	5.28	282.15	43	38	23	35
I-2			0.30			27	23	34	28
I-3			0.45			25	25	19	23
I-4			0.60			17	11	26	18
I-5		2%	0.15	5.66	282.15	31	39	42	37
I-6			0.30			24	34	40	33
I-7			0.45			19	44	13	25
I-8			0.60			26	10	41	26
I-9		3.5%	0.15	5.88	282.15	51	45	28	41
I-10			0.30			35	41	38	38
I-11			0.45			26	10	50	29
I-12			0.60			19	37	28	28
II-1	G2	0.5%	0.15	5.62	282.15	35	45	31	37
II-2			0.30			34	41	30	35
II-3			0.45			37	31	25	31
II-4			0.60			22	19	38	26
II-5		2%	0.15	5.92	282.15	37	46	34	39
II-6			0.30			42	38	30	37
II-7			0.45			29	33	37	33
II-8			0.60			19	31	35	28
II-9		3.5%	0.15	6.41	282.15	39	41	44	41
II-10			0.30			31	34	52	39
II-11			0.45			41	39	34	38
II-12			0.60			28	31	33	31
III-1	G3	0.5%	0.15	5.83	282.15	48	60	38	49
III-2			0.30			53	48	32	44
III-3			0.45			35	39	29	34
III-4			0.60			45	23	28	32
III-5		2%	0.15	5.96	282.15	55	55	46	52
III-6			0.30			51	34	49	45
III-7			0.45			33	22	58	38
III-8			0.60			39	20	42	34
III-9		3.5%	0.15	6.65	282.15	48	47	62	52
III-10			0.30			48	55	47	50
III-11			0.45			47	37	34	39
III-12			0.60			48	22	48	39