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Scale inhibitor for petroleum processing and preparation method thereof

A kind of antiscalant and petroleum technology, which is applied in the field of antiscalant for petroleum processing and its preparation, can solve the problems of low antiscalant rate, high cost and high corrosion rate of antiscalant, and achieve the goal of eliminating corrosion, low cost and water-soluble Good results

Inactive Publication Date: 2017-02-15
JIANGSU JINGWEI TECH INNOVATION CONSULTING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] The invention provides a scale inhibitor for petroleum processing and a preparation method thereof, which solves technical problems such as low scale inhibition rate, high corrosion rate and high cost of existing scale inhibitors

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Step 1: Weigh according to the ratio of parts by mass: 100 parts of hexyl acetate; 50 parts of polyisobutenyl succinimide; 40 parts of 2,6-di-tert-butylbenzenediol; 20 parts of polypropylene succinimide; 15 parts of disalicylidene propylene diamine; 30 parts of sodium dodecylbenzenesulfonate; 3 parts of citric acid; 30 parts of ammonium chloride; dioctyl succinate 30 parts; Dihydrophenanthrene 20 parts.

[0025] The second step: put polyoxypropylene amine, polypropylene succinimide, disalicylidene propylenediamine and 2,6-di-tert-butyl quinone into the tank with thermometer, heating device and stirring device In the reaction kettle, the temperature was raised to 50° C., stirred for 100 min, and the stirring speed was 100 rpm.

[0026] Step 3: Heat up to 80°C, add dihydrophenanthrene and remaining raw materials, and stir for 40 minutes.

[0027] The raw material is a commercially available product, which is easy to obtain and has good water solubility. It can be used i...

Embodiment 2

[0029] The first step: weigh according to the ratio of parts by mass: 100 parts of hexyl acetate; 40 parts of polyisobutenyl succinimide; 30 parts of 2,6-di-tert-butylbenzenediol; 15 parts of polypropylene succinimide; 14 parts of disalicylic propylenediamine; 25 parts of sodium dodecylbenzenesulfonate; 2 parts of citric acid; 25 parts of ammonium chloride; dioctyl succinate 20 parts; Dihydrophenanthrene 10 parts.

[0030] The second step: put polyoxypropylene amine, polypropylene succinimide, disalicylidene propylenediamine and 2,6-di-tert-butyl quinone into the tank with thermometer, heating device and stirring device In the reaction kettle, the temperature was raised to 70°C and stirred for 140 minutes at a stirring speed of 120 rpm.

[0031] Step 3: Heat up to 100°C, add dihydrophenanthrene and remaining raw materials, and stir for 80 minutes.

[0032]The raw material is a commercially available product, which is easy to obtain and has good water solubility. It can be us...

Embodiment 3

[0034] Step 1: Weigh according to the ratio of parts by mass: 100 parts of hexyl acetate; 80 parts of polyisobutenyl succinimide; 70 parts of 2,6-di-tert-butylbenzenediol; 35 parts of polypropenyl succinimide; 18 parts of disalicylidene propylene diamine; 45 parts of sodium dodecylbenzenesulfonate; 8 parts of citric acid; 45 parts of ammonium chloride; dioctyl succinate 60 parts; Dihydrophenanthrene 50 parts.

[0035] The second step: put polyoxypropylene amine, polypropylene succinimide, disalicylidene propylenediamine and 2,6-di-tert-butyl quinone into the tank with thermometer, heating device and stirring device In the reaction kettle, the temperature was raised to 50° C., stirred for 100 min, and the stirring speed was 100 rpm.

[0036] Step 3: Heat up to 80°C, add dihydrophenanthrene and remaining raw materials, and stir for 40 minutes.

[0037] The raw material is a commercially available product, which is easy to obtain and has good water solubility. It can be used in...

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Abstract

The invention discloses a scale inhibitor for petroleum processing. The raw materials include hexyl acetate, polyisocrotyl succinimide, 2,6-ditert-butyl benzenediol, polyoxyallyl amine, polyallyl succinimide, bis(salicylidene) propane diamine, sodium dodecyl benzene sulfonate, citric acid, ammonium chloride, dioctyl succinate and dihydrophenanthrene; the raw materials are commercially available in the market easily, have good water solubility and are applied to the reinjection water in petroleum processing or the circulating cooling water; the cost is low, the technology is simple, and no adverse effect is generated on the petroleum processing technology and the product; the scale inhibitor has a good dispersion effect, is environment-friendly, inhibits and prevents scales and avoids corrosion, so that the system can stably run for a long time; a low dosage is adopted, the efficiency is high while the energy is saved, the production process is clean, the conversion rate is high, a synergistic effect is generated among the components, the corrosion rate against carbon steel is 0.004-0.008mu m.a<-1>, and the scale inhibiting rate against calcium carbonate is 94.5-98.5%; and moreover, the scale inhibitor is convenient to use and can be widely applied.

Description

technical field [0001] The invention relates to an environment-friendly material, in particular to a scale inhibitor for petroleum processing and a preparation method thereof. Background technique [0002] Scale inhibitor: It is a class of agents that can disperse insoluble inorganic salts in water, prevent or interfere with the precipitation and scaling of insoluble inorganic salts on metal surfaces, and maintain good heat transfer effects on metal equipment . [0003] From the perspective of the mechanism of action, the role of scale inhibitors can be divided into three parts: chelation, dispersion and lattice distortion. And in the laboratory evaluation test, the dispersion effect is the remedial measure of the chelation effect, and the lattice distortion effect is the remedial measure of the dispersion effect. [0004] Boilers in operation often have hard scale, which increases thermal resistance and wastes fuel, affects boiler output, and in severe cases, tubes will e...

Claims

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Application Information

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IPC IPC(8): C02F5/12C02F5/10C02F103/10C02F103/02
CPCC02F5/125C02F5/105C02F2103/023C02F2103/10
Inventor 王静
Owner JIANGSU JINGWEI TECH INNOVATION CONSULTING CO LTD