Application of silica gel-supported long-chain alkyl rhamoside in demulsification and dehydration of dirty oil

A technology of alkyl glycoside demulsifier and alkyl glycoside, which is applied in the fields of hydrocarbon oil dehydration/demulsification, chemical dehydration/demulsification, petroleum industry, etc. It can solve the problems of poor biodegradability and low oil recovery rate, and achieve Easy to operate, easy to recycle, good dehydration effect

Active Publication Date: 2017-08-08
广州德馨生态环境技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Chemical demulsifier has the advantages of high activity, quick effect, etc., and is a commonly used demulsification method at present, but it has disadvantages such

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0023] Example 1

[0024] Add 300-400 mesh silica gel (1g) and alkyl glycosides (3mmol) to a mixed solvent (10mL) with a volume ratio of ether to methanol 1:1, stir at room temperature for 0.5h, and use a rotary evaporator to distill off the solvent. The mixture is heated to 100-105°C under vacuum, and kept under vacuum for 24 hours to obtain a yellowish brown powder, which is the silica gel supported alkyl glycoside demulsifier (hereinafter referred to as product A).

Example Embodiment

[0025] Example 2

[0026] Add 300-400 mesh silica gel (2g) and alkyl glycoside (6mmol) to a mixed solvent (20mL) with a 1:1 volume ratio of ether and methanol, stir at room temperature for 1h, and use a rotary evaporator to distill off the solvent. The remaining mixture It is heated to 100-105°C under vacuum and kept under vacuum heating for 36 hours to obtain a yellowish brown powder, which is a silica gel loaded alkyl glycoside demulsifier (hereinafter referred to as product B).

Example Embodiment

[0027] Example 3

[0028] Take 10L of heavy dirty oil from a refinery workshop of Sinopec ( figure 1 ) As the processing object of the present invention.

[0029] The physical parameters of the dirty oil

[0030]

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PUM

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Abstract

The invention belongs to the field of demulsification and dehydration of dirty oil and particularly relates to application of silica gel-supported long-chain alkyl rhamoside in demulsification and dehydration of the dirty oil. A silica gel-supported alkyl polyglucoside demulsifier disclosed by the invention is characterized in that alkyl polyglucoside has the following structure (the formula is shown in the description). A preparation method of the silica gel-supported alkyl polyglucoside demulsifier comprises the following steps: adding silica gel with 300 to 400 meshes and the alkyl polyglucoside into a mixed solvent of diethyl ether and methanol at a volume ratio of 1 to 1; stirring at normal temperature for 0.5 to 1 hour, and evaporating by a rotary evaporator to remove the solvent; heating the remaining mixture to 100 to 105 DEG C under a vacuum condition, and keeping vacuum heating for 24 to 36 hours to obtain tawny powder, namely the silica gel-supported alkyl polyglucoside demulsifier, wherein the use amounts of the mixed solvent, the silica gel and the alkyl polyglucoside are 1 g of the silica gel and 3 mmol of the alkyl polyglucoside respectively in every 10 ml of the mixed solvent.

Description

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Claims

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Application Information

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Owner 广州德馨生态环境技术有限公司
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