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De-oiling agent and its prepn

A degreaser, fatty amine polyoxypropylene polyoxyethylene ether technology, which is applied in the directions of grease/oily substance/float removal device, liquid separation, separation method, etc. Emission requirements and other issues, to achieve the effect of good deoiling effect, strong anti-emulsification and demulsification functions, and easy popularization and application.

Active Publication Date: 2008-10-01
SINOPEC LANZHOU GASOLINEEUM CHEM IND CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the deoiling agents used in China mainly include DR-951 deoiling agent, BS-108 deoiling agent, BSF-1 deoiling agent, and DE-0712 deoiling agent. The deoiling rate is about 60%), which cannot meet the requirements of industrial sewage discharge of each production device

Method used

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  • De-oiling agent and its prepn
  • De-oiling agent and its prepn
  • De-oiling agent and its prepn

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] Embodiment 1, the preparation of deoiling agent of the present invention

[0046] Raw material (by weight percentage):

[0047] Aliphatic amine polyoxypropylene polyoxyethylene ethers (relative molecular weight 3000-3600) 30%

[0048] Alkylphenol formaldehyde resin polyoxypropylene polyoxyethylene ether (relative molecular weight 3800-4200) 70%

[0049] Process: Directly mix fatty amine polyoxypropylene polyoxyethylene ethers with alkylphenol formaldehyde resin polyoxypropylene polyoxyethylene ethers to obtain the deoiling agent of the present invention.

Embodiment 2

[0050] Embodiment 2, the preparation of deoiling agent of the present invention:

[0051] Raw material (by weight percentage):

[0052] Aliphatic amine polyoxypropylene polyoxyethylene ethers (relative molecular weight 3000-3600) 40%

[0053] Alkylphenol formaldehyde resin polyoxypropylene polyoxyethylene ether (relative molecular weight 3800-4200) 60%

[0054] Process: Mix aliphatic amine polyoxypropylene polyoxyethylene ether and alkylphenol formaldehyde resin polyoxypropylene polyoxyethylene ether directly and evenly.

Embodiment 3

[0055] Embodiment 3, the preparation of deoiling agent of the present invention

[0056] Raw material (by weight percentage):

[0057] Aliphatic amine polyoxypropylene polyoxyethylene ether (relative molecular weight 3000-3600) 50%

[0058] Alkylphenol formaldehyde resin polyoxypropylene polyoxyethylene ether (relative molecular weight: 3800-4200) 50%

[0059] Process: Mix aliphatic amine polyoxypropylene polyoxyethylene ether and alkylphenol formaldehyde resin polyoxypropylene polyoxyethylene ether directly and evenly.

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Abstract

The present invention provides one kind of de-oiling agent for treating oil-containing industrial sewage from oil refinery. The de-oiling agent is compounded with fatty amine polyoxypropylene polyoxyethylene ether in 30-50 wt% and alkyl resinox polyoxypropylene polyoxyethylene ether in 50-70 wt%. The de-oiling agent has high de-oiling effect and de-oiling rate up to 75 %, and can reduce the oil containing amount of oil refining effluent to below 150 mg / L.

Description

technical field [0001] The invention belongs to the technical field of industrial sewage treatment, and relates to a chemical auxiliary agent used in the treatment of oily industrial sewage of an oil refining unit in an oil refinery, in particular to a deoiling agent with alkyl formaldehyde resin polyoxyether as the main raw material. Background technique [0002] In the process of petroleum processing, the oil content in industrial wastewater discharged from refinery processing units is often too high, making it difficult for the water quality to meet the discharge standards of CNPC. With the increase in the proportion of heavy crude oil in refineries, the acid value of crude oil also shows an upward trend. The increase of acid value makes the oil-water emulsification of crude oil more and more serious during the refining process, and the oil content of the discharged sewage is too high, exceeding the sewage discharge index of the refinery unit (the oil content of industrial...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F1/40
Inventor 任世科张军明王澍刘雪梅詹爱霞
Owner SINOPEC LANZHOU GASOLINEEUM CHEM IND CORP