Method for preparing gas hydrate accelerant
A gas hydrate and accelerator technology, which is applied in gas fuel, petroleum industry, fuel and other directions, can solve the problems of unsatisfactory, low gas storage density of hydrate, etc., and achieves low cost, increased gas storage capacity, and improved economy. effect of benefit
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[0032] The selected composite accelerator consists of: adding sodium chloride (Nacl) with a mass percentage of 0.3 to 6.5% of water, the surfactant is sodium dodecyl sulfate (SDS), and the concentration is 0.3×10 -3 ~0.8×10 -3 mol / L, see Table 1. The experimental steps are the same as above. The equilibrium condition for hydrate formation is that the temperature is 1.9-5.5°C and the pressure is 0.79-2.7Mpa.
[0033] Table 1 Composite Accelerator Preparation Concentration
[0034]
[0035] Under the above conditions, it is found through experiments that the induction time of hydrate formation is 3-17 minutes; the gas storage density is 163m 3 / m 3 above.
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