Narrow distillate alpha-olefin derived alkylbenzene sulfonate and its synthesis method and uses

A technology of alkylbenzene sulfonate and narrow fractions, applied in the direction of sulfonate preparation, drilling composition, chemical instruments and methods, etc., can solve unfavorable large-scale production and application, product quality control problems, synthetic raw materials Complicated composition and other issues, to achieve the effects of large-scale production and application, easy control of product quality, and good application prospects

Inactive Publication Date: 2006-07-12
TECHNICAL INST OF PHYSICS & CHEMISTRY - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the complex composition of their synthetic raw materials, their properties vary with the composition and distillation range of the raw oil used, the product quality control of these surfactants is a big problem, which is not conducive to large-scale production and application

Method used

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  • Narrow distillate alpha-olefin derived alkylbenzene sulfonate and its synthesis method and uses
  • Narrow distillate alpha-olefin derived alkylbenzene sulfonate and its synthesis method and uses
  • Narrow distillate alpha-olefin derived alkylbenzene sulfonate and its synthesis method and uses

Examples

Experimental program
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Effect test

Embodiment 1

[0038] A certain amount of benzene was added into a three-necked flask, and the catalyst anhydrous aluminum trichloride (AlCl 3 ), under stirring, slowly add the narrow fraction α-olefins whose average number of carbon atoms is sixteen and whose carbon number distribution is not more than 3 carbon atoms, the molar ratio of the three is 10:0.3:1, and the temperature is controlled at 10-30°C About 17 hours of reaction. Pour the reaction mixture into crushed ice, let stand to separate layers, and use 5-20wt% Na for the oil phase 2 CO 3 solution, and then washed three times with water until neutral. The organic phases were combined, dried with anhydrous calcium chloride, filtered, and the low-boiling substances were distilled off with a water pump, and then distilled under reduced pressure to obtain the intermediate product hexadecylbenzene.

[0039] Take a certain amount of synthesized hexadecylbenzene in a three-necked flask, add fuming sulfuric acid dropwise to the stirred h...

Embodiment 2

[0042] In Example 1, the narrow fraction α-olefin with an average number of carbon atoms of sixteen and a distribution of carbon numbers of no more than 3 carbon atoms is replaced by an average number of carbon atoms of eighteen and a distribution of no more than 3 carbon atoms. Narrow cut α-olefins, other conditions and operating methods are the same as in Example 1 to obtain product 2# product octadecylbenzenesulfonate. Add 10000ppm NaCl, 150ppm Ca to 2# product 2+ , the product concentration is 3000ppm, the alkali concentration is 900ppm~1500ppm Na 2 CO 3 When , the ultra-low interfacial tension with crude oil from Shengli Oilfield in China is reached, as shown in Figure 2. Add 10000ppm NaCl, 150ppm Ca to 2# product 2+ , 600ppmCO 3 2- , 1000ppmHPAM, the product concentration is 700ppm, and the crude oil of Shengli Oilfield in China reaches ultra-low interfacial tension, see Figure 7 .

Embodiment 3

[0044] In Example 1, the narrow cut α-olefins with an average number of carbon atoms of sixteen and a distribution of carbon numbers of no more than 3 carbon atoms were replaced by an average number of carbon atoms of fourteen and a distribution of no more than 3 carbon atoms. Narrow cut α-olefins, benzene is replaced by m-xylene, other conditions and operating methods are the same as in Example 1, and product 3# product tetradecyldimethylbenzenesulfonate is obtained. Add 10000ppmNaCl, 150ppm Ca in 3# product 2+ , 600ppmCO 3 2- , the product concentration is 700ppm, and the crude oil from Shengli Oilfield in China has reached ultra-low interfacial tension, see Figure 3.

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Abstract

The invention relates to an alkyl benzene sulfonate surface catalyst of the narrow cut alpha-olefin derivatize and its synthesis method and the applied in teritary oil extraction. 1) Choosing perfume raw material (such as benzene, toluene, ethylbenzene, xylene, propyl benzene, cumene or their any mixing substance) to react with the alpha-alkene with the average carbon number 14-24(each raw material is the narrow cut whose carbon chain distribute is less than 3 carbon atoms) to prepare for the narrow carbon chain distributed alkyl perfume compound; 2) Preparing for the narrow carbon chain distributed alkyl benzene sulfonate by sulfonation and inactivating the alkyl perfume compound from the step 1). The alkyl benzene sulfonate with different chain long is single used or matched with the base to form oil displacement surface catalyst product.

Description

technical field [0001] The invention belongs to surfactants used in oil field flooding, in particular to alkylbenzene sulfonate surfactants derived from narrow fraction α-olefins and a synthesis method thereof, and alkylbenzene sulfonic acids derived from narrow fraction α-olefins Application of salt surfactants in tertiary oil recovery. Background technique [0002] In the history of oil field exploitation, the method of relying on the energy of the oil layer to recover oil has gone through a quite long period. During this period, the oil was lifted to the surface mainly by the expansion of dissolved natural gas in the oil, and when the dissolved gas was exhausted, the oil lost its ability to flow. This oil recovery method is called energy exhaustion oil recovery, also called primary oil recovery, and the recovery rate generally can only reach about 15%. After the original energy of the oil layer is exhausted, a number of water injection wells are drilled at the edge of t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07C309/30C07C303/32C09K8/04
Inventor 俞稼镛赵濉黄玉萍罗澜张路严峰
Owner TECHNICAL INST OF PHYSICS & CHEMISTRY - CHINESE ACAD OF SCI
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