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Stone oil sulphonic acid, its salt, preparation method and uses thereof

A technology of petroleum sulfonate and petroleum sulfonic acid, which is applied in the preparation of sulfonic acid, chemical instruments and methods, petrochemical modification, etc., can solve the problems of insufficient source of raw materials, unsatisfactory application performance, complicated preparation process, etc. The effect of low price, excellent performance and simple process

Inactive Publication Date: 2013-10-09
BEIJING TIANYI GERUN NEW ENERGY TECH DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It mainly has the problems of insufficient raw material sources, complex preparation process, single chemical structure, unsatisfactory application performance and high product price.

Method used

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  • Stone oil sulphonic acid, its salt, preparation method and uses thereof
  • Stone oil sulphonic acid, its salt, preparation method and uses thereof
  • Stone oil sulphonic acid, its salt, preparation method and uses thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Embodiment 1, preparation petroleum sulfonate

[0022] The sulfonating agent SO 3 600kg (30 parts by mass) pumped figure 1 Reserved in the high slot. 800kg (40 parts by mass) of raw oil fraction of Shengli Oilfield crude oil at 280-600°C, 300kg of OP-15 (15 parts by mass), solvent C 2 h 4 Cl 2 395kg (19.75 parts by mass) pumped in figure 1 In the reactor 1, the temperature is controlled at 15-20°C, and the sulfonating agent SO is added dropwise. 3 600kg. After the dropwise addition was complete, petroleum sulfonic acid was obtained, and stirring was continued for 120 minutes. The obtained petroleum sulfonic acid is then pumped into the reactor 2, and the temperature is raised to 60-70° C., and the aging reaction is carried out with stirring for 2 hours. 430kg ammoniacal liquor (mass percentage concentration 25%) in the lye head tank is added dropwise to figure 1 Neutralization reaction is carried out in the petroleum sulfonic acid in Reactor 2, the temperature...

Embodiment 2

[0066] Embodiment 2, preparation petroleum sulfonate

[0067] According to the steps of Example 1, take 473.6kg (59.2 parts by mass) of crude oil fraction of 280-600°C of Shengli Oilfield crude oil, 40kg (5 parts by mass) of OP-1540kg (5 parts by mass), 80kg (10 parts by mass) of petroleum ether, and dropwise add the sulfonating agent SO 3 80kg (10 parts by mass), after completing the sulfonation reaction, dropwise adding 160kg of ammonia water with a mass percentage concentration of 25% for neutralization reaction, so that the final pH of the system is 7-9; wherein, the temperature of the sulfonation reaction is 20-25 ℃. All the other are operated by the processing condition of embodiment 1, obtain 650kg finished petroleum sulfonate.

[0068] The composition of the prepared petroleum sulfonate product was analyzed and the properties were determined, the results are shown in Table 1.

Embodiment 3

[0069] Embodiment 3, preparation petroleum sulfonate

[0070] According to the steps of Example 1, 355.2Kg (44.4 parts by mass) of raw oil cuts at 280-600°C of Shengli Oilfield crude oil, OP-1580Kg (10 parts by mass), CH 2 Cl 2 120Kg (15 parts by mass), add sulfonating agent SO3 160Kg (20 parts by mass) dropwise, after completing the sulfonation reaction, add 160kg of ammonia water with a mass percentage concentration of 35% for neutralization reaction, so that the final pH of the system is 7-9 ; Wherein, the temperature of the sulfonation reaction is 25-30°C. All the other are operated by the processing condition of embodiment 1, obtain 700kg finished petroleum sulfonate.

[0071] The composition of the prepared petroleum sulfonate product was analyzed and the properties were determined, the results are shown in Table 1.

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Abstract

The invention discloses petroleum sulfonic acid and salt thereof as well as a preparation method and application thereof. The petroleum sulfonic is prepared by the following method: causing petroleum fractions and nonylphenol polyethenoxy ether to carry out sulfonation reaction to obtain the petroleum sulfonic acid, wherein the distillation range of the petroleum fractions is more than 280 DEG C under normal atmosphere, is preferably between 280 and 600 DEG C. The petroleum sulfonate is prepared by the method comprising the following steps: 1) preparing the petroleum sulfonic acid by the method for preparing the petroleum sulfonic acid; and 2) neutralizing the petroleum sulfonic acid obtained in step 1) with an alkali solution to pH value of between 7 and 9, and then obtaining the petroleum sulfonate. The petroleum sulfonate prepared by the method can reduce oil water interfacial tension to between 10<-2> and 10<-3> mN / m, has good universality for improving recovery ratio for different crude oil systems, and can be used as an oil displacement agent in oil extraction.

Description

technical field [0001] The present invention relates to a kind of petroleum sulfonic acid and its salt as well as their preparation method and application. Background technique [0002] With the exploitation of oil, the resources are exhausted year by year and the reserve resources are insufficient. Enhanced oil recovery is an important subject of research at home and abroad. The method of chemical flooding is currently recognized as the most scientific and effective method to enhance oil recovery. Chemical flooding refers to the use of anionic surfactants to reduce the oil-water interfacial tension and reduce the adhesion work, so as to achieve the purpose of stripping, driving and recovering crude oil from the formation. At present, the preparation of petroleum sulfonate anionic surfactants generally uses dodecylbenzene, heavy alkylbenzene, and polycyclic aromatic hydrocarbons as the sulfonated substances, and uses concentrated sulfuric acid as the sulfonating agent for l...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07C309/62C07C303/06C10G73/38C09K8/584
Inventor 不公告发明人
Owner BEIJING TIANYI GERUN NEW ENERGY TECH DEV
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