Method for preparing gas hydrate accelerant
A technology of gas hydrate and accelerator, which is applied in the direction of gas fuel, petroleum industry, fuel, etc., can solve the problems of unsatisfactory and low gas storage density of hydrate, and achieve low cost, increased gas storage capacity and shortened time Effect
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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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