Composite hydrate inhibitor composition containing lecithin and its application
A technology of lecithin and hydrate, which is applied in the field of compound hydrate polymerization inhibitor compositions, can solve the problems of large dosage, easy environmental pollution, poor polymerization inhibition performance, etc., and achieves low dosage, good flexibility, and avoidance of pollution. Effect
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Embodiment 1
[0043] This example provides a kind of complex hydrate polymerization inhibitor containing lecithin, which is obtained by compounding (Span20+Tween60), lecithin and ethanol at a mass ratio of 1:1:1.
[0044] Apply the above compound hydrate inhibitor to the oil-water system with a water content of 10% (calculated based on the sum of the volume of water and oil), and the effect of using the compound hydrate inhibitor in this embodiment For evaluation, this embodiment uses the high-pressure sapphire reactor described in Comparative Example 1 for evaluation, and the specific experimental process is as described in Comparative Example 1.
[0045] In this embodiment, the oil-water system in the reactor is composed of 1.5ml deionized water and 13.5ml of -20# diesel oil, that is, the oil-water system with a water content of 10% (based on the sum of the volumes of water and oil), The addition amount of the polymerization inhibitor of this embodiment is 1.0% of the water amount in the ...
Embodiment 2
[0048] This example provides a compounded hydrate inhibitor containing lecithin, which is obtained by compounding (Span20+Tween60), lecithin and ethanol at a mass ratio of 0.5:1:1.
[0049] In this embodiment, the high-pressure sapphire reactor described in Comparative Example 1 is used for evaluation, and the specific experimental process is as described in Comparative Example 1.
[0050] In this embodiment, the oil-water system in the reactor is composed of 1.5ml deionized water and 13.5ml of -20# diesel oil, that is, the oil-water system with a water content of 10% (based on the sum of the volumes of water and oil), The addition amount of the polymerization inhibitor in this embodiment is 1.0% of the water quality in the system, and the experimental gas composition introduced is shown in Table 1.
[0051] During the whole experimental process of this example, the gas hydrate particles were uniformly dispersed in the oil phase, and no hydrate accumulation, agglomeration and ...
Embodiment 3
[0053] This example provides a compounded hydrate inhibitor containing lecithin, which is obtained by compounding (Span20+Tween60), lecithin and ethanol at a mass ratio of 0.5:1:3.
[0054] In this embodiment, the high-pressure sapphire reactor described in Comparative Example 1 is used for evaluation, and the specific experimental process is as described in Comparative Example 1.
[0055] In this embodiment, the oil-water system in the reactor is composed of 1.5ml deionized water and 13.5ml of -20# diesel oil, that is, the oil-water system with a water content of 10% (based on the sum of the volumes of water and oil), The addition amount of the polymerization inhibitor in this embodiment is 1.0% of the water quality in the system, and the experimental gas composition introduced is shown in Table 1.
[0056] During the whole experimental process of this example, the gas hydrate particles were uniformly dispersed in the oil phase, and no hydrate accumulation, agglomeration and ...
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