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Environment-friendly high-performance kinetic hydrate inhibitor and synthetic method thereof

A hydrate inhibitor and kinetic technology, applied in chemical instruments and methods, drilling compositions, etc., can solve the problems of low cost, low dose, small environmental impact, etc., and achieve the effect of low cost

Active Publication Date: 2016-06-22
上海氟聚化学产品股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] The purpose of the present invention is to provide a new type of kinetic hydrate inhibitor for the shortcomings of various current hydrate inhibitors, which not only maintains the characteristics of high efficiency, low dosage and environmental protection of existing kinetic inhibitors, but also has the existing power The lack of chemical inhibitors has the characteristics of low cost, little impact on the environment, universal application and long-lasting

Method used

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  • Environment-friendly high-performance kinetic hydrate inhibitor and synthetic method thereof
  • Environment-friendly high-performance kinetic hydrate inhibitor and synthetic method thereof
  • Environment-friendly high-performance kinetic hydrate inhibitor and synthetic method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] A kinetic hydrate inhibitor, the preparation method comprising the following steps:

[0042] (1) Allyl polyoxyethylene polyoxypropylene epoxy ether (m=2, n=2, purchased from Hangzhou Diweilai Trading Co., Ltd.) and polyetheramine (x=2, y=2, z =2, Suzhou Changke Industrial Co., Ltd.) mixed with a molar ratio of 2.05:1, that is, 66.2g allyl polyoxyethylene polyoxypropylene epoxy ether (m=2, n=2) and 20g polyetheramine ( x=2, y=2, z=2) were reacted at 80°C for 14 hours to obtain 82.7 g of allyl polyetheramine intermediate, which was a colorless transparent liquid;

[0043] (2) The allyl polyetheramine intermediate obtained in step (1) and vinylpyrrolidone (purchased from Aladdin Reagent (Shanghai) Co., Ltd.) were reacted in the presence of isopropanol for 10 minutes at a molar ratio of 0.1:10 Hours, that is, 82.7g of allyl polyetheramine intermediate and 555g of allylpyrrolidone reacted for 10 hours in the presence of 641ml of isopropanol, the whole reaction was carried o...

Embodiment 2

[0046] The preparation method of the kinetic hydrate inhibitor of the present invention is characterized in that the method comprises the following steps:

[0047] (1) Allyl polyoxyethylene polyoxypropylene epoxy ether (m=3, n=5, purchased from Changzhou Fiber Dyeing Auxiliary Co., Ltd.) and polyetheramine (x=1, y=3, z =10, purchased from Wuxi Akeli Technology Co., Ltd.) and mixed at a molar ratio of 2.1:1, that is, 53.3g of allyl polyoxyethylene polyoxypropylene epoxy ether (m=3, n=5) and 42.2 g polyetheramine (x=1, y=3, z=10) was reacted at 55° C. for 20 hours to obtain 90.7 g of allyl polyetheramine intermediate, which was a colorless transparent liquid.

[0048] (2) The allyl polyetheramine intermediate obtained in step (1) and vinylpyrrolidone (purchased from Aladdin Reagent (Shanghai) Co., Ltd.) were reacted in the presence of isopropanol for 10 minutes with a molar ratio of 0.5:10 Hours, that is, 90.7g of allyl polyetheramine intermediate and 111g of allylpyrrolidone r...

Embodiment 3

[0051] The preparation method of the kinetic hydrate inhibitor of the present invention is characterized in that the method comprises the following steps:

[0052] (1) Allyl polyoxyethylene polyoxypropylene epoxy ether (m=6, n=8, purchased from Hangzhou Danwei Technology Co., Ltd. AEPH90) and polyetheramine (x=10, y=2, z =10, purchased from Guangzhou Huisheng Chemical Products Co., Ltd. ED600) mixed at a molar ratio of 2.01:1, that is, 81.4g of allyl polyoxyethylene polyoxypropylene epoxy ether (m=6, n=8) and 66.1 g polyetheramine (x=10, y=2, z=10) was reacted at 105° C. for 4 hours to obtain 141.6 g of allyl polyetheramine intermediate, which was a colorless transparent liquid.

[0053] (2) The allyl polyetheramine intermediate obtained in step (1) and vinylpyrrolidone (purchased from Aladdin Reagent (Shanghai) Co., Ltd., allylpyrrolidone) were mixed in isopropyl with a molar ratio of 0.25:10 Reaction in the presence of alcohol for 8 hours, that is, 141.6g of allyl polyether...

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Abstract

The invention relates to an environment-friendly high-performance kinetic hydrate inhibitor and a synthetic method thereof and belongs to the field of hydrate inhibitors. The environment-friendly high-performance kinetic hydrate inhibitor is a branched polymer formed by reaction of vinyl pyrrolidone, polyalkylene glycol allyl glycidyl ether, polyether amine and preferred solvents. Compared with the prior art, the novel environment-friendly high-performance kinetic hydrate inhibitor not only has the advantages of high efficiency, low dosage and environment friendliness of existing kinetic inhibitors but also has the advantages of low cost, little susceptibility to the environment, universal applicability and persistence lacking in the existing kinetic inhibitors.

Description

technical field [0001] The invention relates to the field of hydrate inhibitors, in particular to a high-performance environment-friendly kinetic hydrate inhibitor. Background technique [0002] Hydrate inhibitors are chemical substances that can inhibit the formation of hydrates during natural gas production, transportation, and treatment. According to the mechanism of action, they can be divided into thermodynamic inhibitors and kinetic inhibitors. [0003] Common thermodynamic inhibitors are alcohols (such as ethylene glycol, methanol) and electrolytes (such as CaCl 2 ). Adding such inhibitors to natural gas can change the chemical potential of the aqueous solution or hydrate phase, thereby moving the hydrate formation conditions to a lower temperature or higher pressure range. At present, methanol and ethylene glycol are mostly used as inhibitors in the natural gas industry. [0004] Methanol can be used at any operating temperature. Because methanol can lower the hy...

Claims

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Application Information

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IPC IPC(8): C08F226/10C08F216/12C08F283/06C09K8/524
CPCC08F226/10C08F283/065C09K8/524C09K2208/22C08F216/125
Inventor 曹华斌杨坡张玉
Owner 上海氟聚化学产品股份有限公司
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