CN114149166A - Oily sludge cleaning solution and preparation method and application thereof - Google Patents
Oily sludge cleaning solution and preparation method and application thereof Download PDFInfo
- Publication number
- CN114149166A CN114149166A CN202111429683.9A CN202111429683A CN114149166A CN 114149166 A CN114149166 A CN 114149166A CN 202111429683 A CN202111429683 A CN 202111429683A CN 114149166 A CN114149166 A CN 114149166A
- Authority
- CN
- China
- Prior art keywords
- oily sludge
- cleaning solution
- cleaning
- water
- emulsifier
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000010802 sludge Substances 0.000 title claims abstract description 89
- 238000004140 cleaning Methods 0.000 title claims abstract description 60
- 238000002360 preparation method Methods 0.000 title claims abstract description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 51
- 239000003995 emulsifying agent Substances 0.000 claims abstract description 27
- 238000000034 method Methods 0.000 claims abstract description 24
- 239000000203 mixture Substances 0.000 claims abstract description 22
- 239000012459 cleaning agent Substances 0.000 claims abstract description 21
- 239000003960 organic solvent Substances 0.000 claims abstract description 21
- 239000007788 liquid Substances 0.000 claims abstract description 18
- 150000003839 salts Chemical class 0.000 claims abstract description 11
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 claims description 36
- 238000003756 stirring Methods 0.000 claims description 18
- 239000002736 nonionic surfactant Substances 0.000 claims description 11
- CYEJMVLDXAUOPN-UHFFFAOYSA-N 2-dodecylphenol Chemical group CCCCCCCCCCCCC1=CC=CC=C1O CYEJMVLDXAUOPN-UHFFFAOYSA-N 0.000 claims description 8
- 239000003945 anionic surfactant Substances 0.000 claims description 8
- 229940051841 polyoxyethylene ether Drugs 0.000 claims description 8
- 229920000056 polyoxyethylene ether Polymers 0.000 claims description 8
- 238000000926 separation method Methods 0.000 claims description 8
- 238000010438 heat treatment Methods 0.000 claims description 7
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 claims description 6
- 239000001110 calcium chloride Substances 0.000 claims description 6
- 229910001628 calcium chloride Inorganic materials 0.000 claims description 6
- 238000011084 recovery Methods 0.000 claims description 6
- 238000004064 recycling Methods 0.000 claims description 6
- 238000007865 diluting Methods 0.000 claims description 5
- 238000002156 mixing Methods 0.000 claims description 5
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 4
- TWRXJAOTZQYOKJ-UHFFFAOYSA-L Magnesium chloride Chemical compound [Mg+2].[Cl-].[Cl-] TWRXJAOTZQYOKJ-UHFFFAOYSA-L 0.000 claims description 4
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims description 4
- 239000003208 petroleum Substances 0.000 claims description 3
- 239000002994 raw material Substances 0.000 claims description 3
- 239000007791 liquid phase Substances 0.000 claims description 2
- 229910001629 magnesium chloride Inorganic materials 0.000 claims description 2
- 239000011780 sodium chloride Substances 0.000 claims description 2
- 239000002904 solvent Substances 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 4
- 239000002245 particle Substances 0.000 abstract description 3
- 230000008859 change Effects 0.000 abstract description 2
- 239000003921 oil Substances 0.000 description 18
- 238000005516 engineering process Methods 0.000 description 8
- 239000004094 surface-active agent Substances 0.000 description 7
- 230000018044 dehydration Effects 0.000 description 5
- 238000006297 dehydration reaction Methods 0.000 description 5
- 230000009467 reduction Effects 0.000 description 5
- 230000002195 synergetic effect Effects 0.000 description 3
- 238000005406 washing Methods 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000013329 compounding Methods 0.000 description 2
- 239000010779 crude oil Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000003795 desorption Methods 0.000 description 2
- 230000001804 emulsifying effect Effects 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000002563 ionic surfactant Substances 0.000 description 2
- 230000001404 mediated effect Effects 0.000 description 2
- 239000000693 micelle Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 238000010533 azeotropic distillation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006065 biodegradation reaction Methods 0.000 description 1
- 238000010170 biological method Methods 0.000 description 1
- 230000031018 biological processes and functions Effects 0.000 description 1
- 230000000711 cancerogenic effect Effects 0.000 description 1
- 231100000315 carcinogenic Toxicity 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000005119 centrifugation Methods 0.000 description 1
- 239000013043 chemical agent Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000002920 hazardous waste Substances 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 244000144972 livestock Species 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 231100000219 mutagenic Toxicity 0.000 description 1
- 230000003505 mutagenic effect Effects 0.000 description 1
- 238000007500 overflow downdraw method Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 230000003381 solubilizing effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 231100000378 teratogenic Toxicity 0.000 description 1
- 230000003390 teratogenic effect Effects 0.000 description 1
- 238000009210 therapy by ultrasound Methods 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 238000009279 wet oxidation reaction Methods 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
- C02F11/14—Treatment of sludge; Devices therefor by de-watering, drying or thickening with addition of chemical agents
- C02F11/148—Combined use of inorganic and organic substances, being added in the same treatment step
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/002—Sludge treatment using liquids immiscible with water
Abstract
The application comprises an oily sludge cleaning solution, and a preparation method and application thereof. The oily sludge cleaning solution comprises a cleaning agent composition, wherein the cleaning agent composition comprises an emulsifier, an organic solvent and salt; the mass ratio of the organic solvent to the emulsifier is 2-5: 1; the content of the salt is 0.4-1.5 wt% of the cleaning agent composition; the water content of the oily sludge is 30 percent; the water removal rate of the oily sludge cleaning liquid is 95.03-98.96%. The oily sludge cleaning solution is adsorbed on the surface of oily sludge particles to replace and destroy emulsified water to change the emulsified water into free water, and then the emulsified water is centrifugally separated, so that the method has the remarkable effect of removing the emulsified water in the oily sludge, and is low in cost, simple to operate and free of secondary pollution.
Description
Technical Field
The invention belongs to the technical field of oily sludge treatment, and particularly relates to an oily sludge cleaning solution, and a preparation method and application thereof.
Background
At present, about 1000 million tons of oily sludge is urgently needed to be treated every year in China, the sources of the oily sludge mainly comprise the oily sludge generated in the processes of crude oil exploitation, gathering and transportation, refining and oil field sewage treatment, and the generation amount of the oily sludge is increased year by year due to exploitation of shale gas and offshore oil fields. The oily sludge belongs to hazardous waste, and volatile hydrocarbon pollutes air if the oily sludge is not treated in time; secondly, the long-term stacking of the soil and the water causes the pollution of soil and water in a wider range; and the contained teratogenic, carcinogenic and mutagenic substances directly harm the health of people and livestock.
The prior oily sludge treatment technology mainly comprises the following steps: hot washing technology, thermal desorption technology, solidification technology, freezing and melting technology, wet oxidation technology, ultrasonic treatment technology, extraction and biological method, biological degradation method and the like. The hot washing method is a widely used method at present, has less investment and lower operation cost compared with other methods, and is one of effective methods for reduction and resource utilization. However, the water content of the residue treated by the method is higher than the standard and the used chemical agent causes secondary pollution to the environment. The thermal desorption method has high crude oil recovery rate, but is difficult to popularize and apply on a large scale due to high requirements on reaction conditions and large amount of generated waste gas. The curing process does not solve the problem fundamentally, only eliminates the hazard temporarily, and wastes limited petroleum resources. The freeze-fusion method has low energy consumption but low oil recovery rate. The oxidation method has the hidden trouble of secondary pollution. Extraction + biological processes are limited by their extractant. The biodegradation method is not suitable for the oily sludge with high oil content, and the treatment period is longer. The oily sludge is in a stable water-in-oil (W/O) emulsified state in which water is present in the form of emulsified water, making it difficult to dewater during centrifugal separation, resulting in a reduction in the quality of the recovered oil. The hot washing technology for treating the oily sludge needs demulsification and viscosity reduction to improve the dehydration rate.
Disclosure of Invention
The organic solvent has good viscosity reduction effect on the oily sludge, good synergistic effect and synergism can be realized after the surfactant is compounded, and the defect of a single surfactant system can be overcome. For the nonionic surfactant, the emulsifying property is good, but the nonionic surfactant has a certain temperature application range, the application of the nonionic surfactant in many environments is limited, the ionic surfactant is just opposite, the ionic surfactant is stable to the temperature and strong in hydrophilicity, and the two surfactants are compounded to make up for the deficiencies of each other well. The organic solvent is used for coating the emulsifier, so that the emulsifier has ultralow interfacial tension and good wetting, emulsifying and solubilizing capabilities, the organic solvent mediates the emulsifier to be adsorbed on the surface of the oily sludge, the emulsified water in the oily sludge is replaced and destroyed to be changed into free water, and the free water is separated out through centrifugation.
The invention provides a cleaning agent for removing emulsified water in oily sludge and a preparation method thereof, wherein the cleaning agent is prepared by using an emulsifier, salt and an organic solvent, the organic solvent in the cleaning agent is coated around a surfactant micelle and is mediated to be adsorbed on the surface of oily sludge particles, so that the emulsified water in the oily sludge is replaced and destroyed to be changed into free water, and then the free water is centrifugally separated, so that the cleaning agent has an obvious effect of removing the emulsified water in the oily sludge.
According to one aspect of the application, an oily sludge cleaning solution is provided, which comprises a cleaning agent composition, wherein the cleaning agent composition comprises an emulsifier, an organic solvent and a salt;
the organic solvent coats the emulsifier;
the mass ratio of the organic solvent to the emulsifier is 2-5: 1;
the content of the salt is 0.4-1.5 wt% of the cleaning agent composition;
the water content of the oily sludge is 30%;
the water removal rate of the oily sludge cleaning liquid is 95.03-98.96%.
According to another aspect of the application, a preparation method of the oily sludge cleaning solution is provided, wherein the raw material containing the emulsifier and the salt is mixed with the organic solvent, and the mixture is diluted by adding water to obtain the oily sludge cleaning solution.
The emulsifier contains a nonionic surfactant and an anionic surfactant;
the nonionic surfactant is selected from dodecyl phenol polyoxyethylene ether;
the anionic surfactant is selected from FMES;
optionally, the emulsifier is obtained by compounding a nonionic surfactant and an anionic surfactant.
Alternatively, the emulsifier is prepared by the following method:
and mixing the dodecyl phenol polyoxyethylene ether and FMES, and stirring to obtain the emulsifier.
The organic solvent is at least one selected from ethyl acetate, solvent oil, light white oil and petroleum ether;
optionally, the organic solvent is selected from ethyl acetate.
The salt is selected from at least one of calcium chloride, magnesium chloride and sodium chloride;
the molar ratio of the nonionic surfactant to the anionic surfactant in the emulsifier is 1-3: 1.
Optionally, the cleaning agent composition further comprises water, and the mass content of the water is 30-35%.
Optionally, the stirring and mixing conditions are as follows: the temperature is 25 ℃, and the time is 20-30 min.
The content of the cleaning agent composition in the oil-containing sludge cleaning solution is 1-5 wt%, and the balance is water.
According to another aspect of the application, a method for cleaning oily sludge is provided, the oily sludge cleaning solution or the oily sludge cleaning solution prepared by the preparation method is adopted;
the method comprises the following steps:
mixing the oily sludge cleaning solution with oily sludge, heating and stirring to remove water in the oily sludge;
the mass ratio of the oily sludge to the cleaning liquid is 1-2: 3 to 6.
The heating temperature is 60-70 ℃, and the stirring time is 30-60 min.
Optionally, the mass-to-volume ratio of the oily sludge to the cleaning fluid is 1-2: 3 to 6.
Optionally, the mass-to-volume ratio of the oily sludge to the cleaning fluid is 1: 3.
the method also comprises the separation and recovery of the oil-containing sludge cleaning solution;
the separation and recovery process of the oily sludge cleaning solution comprises centrifugal separation, and the obtained liquid phase is used as the oily sludge cleaning solution for recycling.
The invention has the beneficial effects that:
(1) compounding a nonionic surfactant dodecyl phenol polyoxyethylene ether and an anionic surfactant FMES to form an emulsifier, coating the emulsifier with an organic solvent ethyl acetate to finally obtain a cleaning agent, adsorbing the organic solvent mediated emulsifier on the surface of oily sludge particles to replace and destroy emulsified water in the oily sludge to change the emulsified water into free water, and obviously removing the emulsified water in the oily sludge through centrifugal separation.
(2) 1-5% of cleaning liquid prepared from the cleaning agent can be used for cleaning oily sludge, the organic solvent has a good viscosity reduction effect on the oily sludge, and after the surfactant is compounded, a good synergistic effect and a good synergistic effect can be achieved, and the defect of a single surfactant system can be overcome.
(3) The cleaning agent for removing the emulsified water in the oily sludge has low production process requirement, is simple and easy to operate, and has low cost for cleaning the oily sludge.
Detailed Description
The present application will be described in detail with reference to examples, but the present application is not limited to these examples.
The raw materials in the examples of the present application were all purchased commercially, unless otherwise specified.
The oil-containing sludge is from a refinery.
The analysis method in the examples of the present application is as follows:
and (3) evaporating and condensing the water in the oily sludge by using an azeotropic distillation method, and calculating the water content through reading.
Example 1
(1) Adding 1g of dodecyl phenol polyoxyethylene ether, 1g of FMES (FMES 1 g) and 0.1g of calcium chloride into 5mL of clear water, uniformly stirring, adding 10g of ethyl acetate, and stirring at normal temperature for 20min to obtain the composition;
(2) diluting the composition to 3% of mass concentration by using clear water to form a cleaning solution;
(3) adding oily sludge into the cleaning solution, and stirring and cleaning for 60min under the heating condition of 60 ℃;
(4) centrifuging at 3000r/min, and recycling the separated liquid as cleaning liquid.
The ethyl acetate: the emulsifier is composed of 5:1 by mass, and the oily sludge is sourced from a refinery; the mass volume ratio of the oily sludge to the cleaning liquid is 1: 3.
The initial water content of the tested oil-containing sludge is 30%, the organic solvent coated surfactant micelle replaces and destroys emulsified water in the oil-containing sludge, and the dehydration rate reaches 98.96% through centrifugal separation.
Example 2
(1) Adding 1g of dodecyl phenol polyoxyethylene ether, 1g of FMES (FMES 1 g) and 0.1g of calcium chloride into 3mL of clear water, uniformly stirring, adding 5g of ethyl acetate, and stirring at normal temperature for 20min to obtain the composition;
(2) diluting the composition to a mass concentration of 4% with clear water to form a cleaning solution;
(3) adding oily sludge into the cleaning solution, and stirring and cleaning for 60min under the heating condition of 60 ℃;
(4) centrifuging at 3000r/min, and recycling the separated liquid as cleaning liquid.
The ethyl acetate: the emulsifier is 2.5:1 in mass ratio, and the oily sludge is sourced from a refinery; the mass volume ratio of the oily sludge to the cleaning liquid is 1: 3.
The initial oil content of the tested oil-containing sludge is 30%, and the cleaning dehydration rate of the cleaning solution is 95.03%.
Example 3
(1) Adding 1g of dodecyl phenol polyoxyethylene ether, 1g of FMES (FMES 1 g) and 0.1g of calcium chloride into 3mL of clear water, uniformly stirring, adding 5g of ethyl acetate, and stirring at normal temperature for 20min to obtain the composition;
(2) diluting the composition to 3% of mass concentration by using clear water to form a cleaning solution;
(3) adding the oily sludge into the cleaning solution, and stirring and cleaning for 60min under the heating condition of 65 ℃;
(4) centrifuging at 3000r/min, and recycling the separated liquid as cleaning liquid.
The ethyl acetate: the emulsifier is 2.5:1 in mass ratio, and the oily sludge is sourced from a refinery; the mass volume ratio of the oily sludge to the cleaning liquid is 1: 3.
The initial water content of the tested oil-containing sludge is 30 percent, and the dehydration rate is 98.76 percent.
Example 4
A method for removing emulsified water in oily sludge by using a cleaning agent comprises the following steps:
(1) adding 1g of dodecyl phenol polyoxyethylene ether, 1g of FMES (FMES 1 g) and 0.1g of calcium chloride into 3mL of clear water, uniformly stirring, adding 5g of ethyl acetate, and stirring at normal temperature for 20 min;
(2) diluting the cleaning agent to 4% of mass concentration by using clear water to form a cleaning solution, so as to obtain the composition;
(3) adding oily sludge into the composition, stirring and cleaning at 60 deg.C for 30 min;
(4) centrifuging at 3000r/min, and recycling the separated liquid as cleaning liquid.
The ethyl acetate: the emulsifier is 2.5:1 in mass ratio, and the oily sludge is sourced from a refinery; the mass volume ratio of the oily sludge to the cleaning liquid is 1: 3.
The initial oil content of the tested oil-containing sludge is 30%, and the dehydration rate of the cleaning solution is 96.33%.
Although the present application has been described with reference to a few embodiments, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the application as defined by the appended claims.
Claims (7)
1. The cleaning solution for the oily sludge is characterized by comprising a cleaning agent composition, wherein the cleaning agent composition comprises an emulsifier, an organic solvent and salt;
the mass ratio of the organic solvent to the emulsifier is 2-5: 1;
the content of the salt is 0.4-1.5 wt% of the cleaning agent composition;
the water content of the oily sludge is 30%;
the water removal rate of the oily sludge cleaning liquid is 95.03-98.96%.
2. The method for preparing the cleaning solution for oily sludge according to claim 1, wherein the cleaning solution for oily sludge is obtained by mixing a raw material containing an emulsifier and a salt with an organic solvent and diluting the mixture with water.
3. The method of claim 2, wherein the emulsifier comprises a nonionic surfactant and an anionic surfactant;
the organic solvent is at least one selected from ethyl acetate, solvent oil, light white oil and petroleum ether;
the salt is selected from at least one of calcium chloride, magnesium chloride and sodium chloride;
the nonionic surfactant is selected from dodecyl phenol polyoxyethylene ether;
the anionic surfactant is selected from FMES;
the molar ratio of the nonionic surfactant to the anionic surfactant in the emulsifier is 1-3: 1.
4. The method as claimed in claim 2, wherein the content of the cleaning agent composition in the oily sludge cleaning solution is 1-5 wt%, and the balance is water.
5. A method for cleaning oily sludge, which is characterized in that the oily sludge cleaning solution of claim 1 or the oily sludge cleaning solution prepared by the preparation method of any one of claims 2 to 4 is adopted;
the method comprises the following steps:
mixing the oily sludge cleaning solution with oily sludge, heating and stirring to remove water in the oily sludge;
the mass ratio of the oily sludge to the cleaning liquid is 1-2: 3 to 6.
6. The method according to claim 5, wherein the heating temperature is 60 ℃ to 70 ℃, and the stirring time is 30min to 60 min.
7. The method of claim 5, further comprising a separate recovery of the oily sludge cleaning solution;
the separation and recovery process of the oily sludge cleaning solution comprises centrifugal separation, and the obtained liquid phase is used as the oily sludge cleaning solution for recycling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111429683.9A CN114149166A (en) | 2021-11-29 | 2021-11-29 | Oily sludge cleaning solution and preparation method and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111429683.9A CN114149166A (en) | 2021-11-29 | 2021-11-29 | Oily sludge cleaning solution and preparation method and application thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114149166A true CN114149166A (en) | 2022-03-08 |
Family
ID=80454410
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111429683.9A Pending CN114149166A (en) | 2021-11-29 | 2021-11-29 | Oily sludge cleaning solution and preparation method and application thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114149166A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104230132A (en) * | 2014-09-17 | 2014-12-24 | 克拉玛依市华隆润洁生态环境科技有限公司 | Oilfield oil sludge treatment method |
| CN104418473A (en) * | 2013-08-22 | 2015-03-18 | 中国石油化工股份有限公司 | Oil-containing sludge resourceful treatment technology |
| CN104556626A (en) * | 2013-10-22 | 2015-04-29 | 中国石油化工股份有限公司 | Oil sludge demulsifier and oil sludge resourceful treatment process |
| CN108192747A (en) * | 2017-12-13 | 2018-06-22 | 中国石油大学(北京) | Reusable oily sludge and oil-contained drilling cuttings nanometer cleaning agent and its application |
| CN109608017A (en) * | 2018-12-05 | 2019-04-12 | 东莞理工学院 | A kind of recycling treatment method of oil-bearing sludge |
| CN111204954A (en) * | 2018-11-22 | 2020-05-29 | 中国石油化工股份有限公司 | Demulsifying agent for oil-containing sludge |
| CN112174466A (en) * | 2020-10-27 | 2021-01-05 | 中石化石油工程技术服务有限公司 | Oil refining sludge reduction comprehensive treatment method |
| CN112374707A (en) * | 2020-10-28 | 2021-02-19 | 中国石油化工股份有限公司 | Oily sludge treatment liquid, preparation method thereof and oily sludge treatment method |
| CN112979115A (en) * | 2021-04-27 | 2021-06-18 | 湖北亮绿环保技术有限公司 | Rapid gel breaker for treating xanthan gum system oil sludge emulsion and preparation method and application thereof |
-
2021
- 2021-11-29 CN CN202111429683.9A patent/CN114149166A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104418473A (en) * | 2013-08-22 | 2015-03-18 | 中国石油化工股份有限公司 | Oil-containing sludge resourceful treatment technology |
| CN104556626A (en) * | 2013-10-22 | 2015-04-29 | 中国石油化工股份有限公司 | Oil sludge demulsifier and oil sludge resourceful treatment process |
| CN104230132A (en) * | 2014-09-17 | 2014-12-24 | 克拉玛依市华隆润洁生态环境科技有限公司 | Oilfield oil sludge treatment method |
| CN108192747A (en) * | 2017-12-13 | 2018-06-22 | 中国石油大学(北京) | Reusable oily sludge and oil-contained drilling cuttings nanometer cleaning agent and its application |
| CN111204954A (en) * | 2018-11-22 | 2020-05-29 | 中国石油化工股份有限公司 | Demulsifying agent for oil-containing sludge |
| CN109608017A (en) * | 2018-12-05 | 2019-04-12 | 东莞理工学院 | A kind of recycling treatment method of oil-bearing sludge |
| CN112174466A (en) * | 2020-10-27 | 2021-01-05 | 中石化石油工程技术服务有限公司 | Oil refining sludge reduction comprehensive treatment method |
| CN112374707A (en) * | 2020-10-28 | 2021-02-19 | 中国石油化工股份有限公司 | Oily sludge treatment liquid, preparation method thereof and oily sludge treatment method |
| CN112979115A (en) * | 2021-04-27 | 2021-06-18 | 湖北亮绿环保技术有限公司 | Rapid gel breaker for treating xanthan gum system oil sludge emulsion and preparation method and application thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104310734B (en) | A kind of disposal of oily sludge medicament and preparation thereof, using method | |
| CN108314290A (en) | A kind of processing method of oily sludge | |
| Daraei et al. | Application of nontoxic green emulsion liquid membrane prepared by sunflower oil for water decolorization: process optimization by response surface methodology | |
| CN102826728A (en) | Cleaning agent for treating oily sludge by using hot washing method and preparation method of cleaning agent | |
| CN108975646B (en) | Oil sludge demulsifier and preparation method and application thereof | |
| CN104418474B (en) | A kind of high efficient cryogenic greasy filth emulsion splitter and preparation method thereof | |
| CN108059313A (en) | A kind of greasy filth cleaning agent and its method for handling greasy filth | |
| CN103896466A (en) | Dirty oil sludge decomposition method | |
| CN106190230B (en) | A kind of inorganic agent for oilfield sump oil and preparation method thereof | |
| CN108558154A (en) | The immediate processing method of oily sludge | |
| CN103803764B (en) | Oily sludge demulsifier and preparation method thereof | |
| US11492555B2 (en) | Processing method for perennially polluted sludge containing oils and water, waste residues or oil sands deep in natural oil mines, and processing system thereof | |
| CN109264946A (en) | A kind of method of step depth separation oily sludge | |
| CN114149166A (en) | Oily sludge cleaning solution and preparation method and application thereof | |
| CN102660320B (en) | Antichlor and preparation method thereof | |
| CN113461303B (en) | Oil sludge sand treatment method | |
| CN111777293A (en) | Method for recovering and dehydrating hydrocarbon substances in oil sludge dissolved by liquid dimethyl ether | |
| CN106966559A (en) | A kind of oil-sludge treatment dispersant and its preparation method and application | |
| CN102873074B (en) | Environment-friendly method for treating calcium petroleum sulfonate waste residues | |
| CN103693825B (en) | A kind of recycling processing method of oily sludge | |
| CN108395067B (en) | Process for treating oily sludge by water washing method | |
| CN113336402B (en) | Formulation composition for recovering oil from oily sludge, recovery process and apparatus | |
| CN114956495B (en) | PH response type compound surfactant cleaning solution and treatment method of oily sludge | |
| CN116251828A (en) | Harmless treatment method for oil-containing spent bleaching clay | |
| CN111375392A (en) | Method for treating waste clay |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB03 | Change of inventor or designer information |
Inventor after: Ma Jianbo Inventor after: Feng Pan Inventor after: Wu Wenwei Inventor after: Zhao Cong Inventor after: Wang Yaoguo Inventor before: Ma Jianbo Inventor before: Feng Pan Inventor before: Wu Wenwei Inventor before: Zhao Cong Inventor before: Wang Yaoguo Inventor before: Tian Yuqin |
|
| CB03 | Change of inventor or designer information | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20220308 |
|
| RJ01 | Rejection of invention patent application after publication |