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Medium composition for filter material used for hydrophilic and oleophobic separator

The technology of a hydrophilic and oleophobic separator is applied in the field of filter materials of hydrophilic and oleophobic separators, which can solve the problems of restricting the popularization and application of fiber ball filter materials, easy adhesion of fiber balls into agglomerates, and difficulty in washing and regeneration. The effect of long filtration cycle, strong regeneration ability and low price

Inactive Publication Date: 2015-12-23
曾金华
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since the fiber ball filter material has a non-polar lipophilic surface, the oil in the produced water is easily adsorbed on it, making the fiber balls easy to stick into agglomerates and difficult to wash and regenerate, thus limiting the use of the fiber ball filter material in oil fields. Popularization and application in effluent treatment
However, only using ordinary ceramic particles as filter materials has the disadvantages of pore blockage and increased working resistance. Some have low porosity, poor filtering effect, and some are even prone to aging.

Method used

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  • Medium composition for filter material used for hydrophilic and oleophobic separator
  • Medium composition for filter material used for hydrophilic and oleophobic separator
  • Medium composition for filter material used for hydrophilic and oleophobic separator

Examples

Experimental program
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Effect test

Embodiment 1

[0028] A filter media composition for a hydrophilic-oleophobic separator, made from the following raw materials in parts by weight:

[0029] 28 walnut shells

[0030] 2 parts polytetrafluoroethylene

[0031] 70 parts of ceramic particles.

[0032] The above-mentioned ceramic particles are made of the following raw materials in parts by weight:

[0033]

[0034] The preparation method of above-mentioned ceramic particle, comprises the following steps:

[0035] 1) Take kaolin, bentonite, sepiolite and limestone according to the formula, and ball mill for 18 hours;

[0036] 2) Add the formula to measure water and leave it for 6 hours;

[0037] 3) granulate into a ball with a diameter of 1.6mm, and dry to a moisture content of 6%;

[0038] 4) Burning at a temperature of 1140° C. for 50 minutes at a heating rate of 2° C. / min, and cooling down to room temperature.

Embodiment 2

[0040] A filter media composition for a hydrophilic-oleophobic separator, made from the following raw materials in parts by weight:

[0041] 30 walnut shells

[0042] 3 parts polytetrafluoroethylene

[0043] 67 parts of ceramic particles.

[0044] The above-mentioned ceramic particles are made of the following raw materials in parts by weight:

[0045]

[0046] The preparation method of above-mentioned ceramic particle, comprises the following steps:

[0047] 1) Take kaolin, bentonite, sepiolite and limestone according to the formula, and ball mill for 19 hours;

[0048] 2) Add formula and measure water, and leave for 5 hours;

[0049] 3) granulate into a ball with a diameter of 1.8mm, and dry to a moisture content of 5%;

[0050] 4) Burning at 1120°C for 60 minutes at a heating rate of 2°C / min, and cooling down to room temperature.

Embodiment 3

[0052] A filter media composition for a hydrophilic-oleophobic separator, made from the following raw materials in parts by weight:

[0053] 33 walnut shells

[0054] 4 parts polytetrafluoroethylene

[0055] 63 parts of ceramic particles.

[0056] The above-mentioned ceramic particles are made of the following raw materials in parts by weight:

[0057]

[0058] The preparation method of above-mentioned ceramic particle, comprises the following steps:

[0059] 1) Take kaolin, bentonite, sepiolite and limestone according to the formula, and ball mill for 21 hours;

[0060] 2) Add formula and measure water, and leave for 4 hours;

[0061] 3) granulate into a ball with a diameter of 2.1mm, and dry to a moisture content of 4%;

[0062] 4) Burning at 1090°C for 75 minutes at a heating rate of 3°C / min, then cooling down to room temperature.

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Abstract

The invention relates to the technical field of filter materials for hydrophilic and oleophobic separators, specifically to a medium composition for a filter material used for a hydrophilic and oleophobic separator. The medium composition is prepared from the following raw materials by weight: 28 to 38 parts of walnut shells, 2 to 6 parts of polytetrafluoroethylene and 56 to 70 parts of ceramic particles, wherein the ceramic particles are prepared from the following raw materials by weight: 20 to 30 parts of kaolin, 15 to 25 parts of bentonite, 10 to 20 parts of sepiolite, 5 to 10 parts limestone and 20 to 30 parts of water. The medium composition for the filter material used for the hydrophilic and oleophobic separator has the advantages of strong oil repellency and superstrong hydrophilic property, significant filtering effect, long filtering cycle, strong regeneration property, heat resistance, good heat stability and low cost.

Description

technical field [0001] The invention relates to the technical field of filter material for a hydrophilic-oleophobic separator, in particular to a filter medium composition for a hydrophilic-oleophobic separator. Background technique [0002] my country's oil fields are widely distributed throughout the northeast, north, south-central, southwest, central China and southeast coastal areas. Since most oilfields in my country have entered the middle and late stages of development, the water content in the produced oil is very high. After the crude oil is collected, a large amount of oily wastewater—produced water will be produced. The water content has reached 70% to 80%, and some oil fields even reach as high as 90%, a large amount of oily sewage is produced after oil-water separation. Oily sewage needs to be treated before being discharged, otherwise it will cause soil and water pollution. Quartz sand and walnut shell are currently two commonly used filter materials in hydrop...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D17/022C02F1/40
Inventor 曾金华
Owner 曾金华
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