CN100571913C - A kind of oil sludge separation method - Google Patents
A kind of oil sludge separation method Download PDFInfo
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- CN100571913C CN100571913C CNB2007100126391A CN200710012639A CN100571913C CN 100571913 C CN100571913 C CN 100571913C CN B2007100126391 A CNB2007100126391 A CN B2007100126391A CN 200710012639 A CN200710012639 A CN 200710012639A CN 100571913 C CN100571913 C CN 100571913C
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- greasy filth
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Abstract
What the present invention proposed is the product isolation technics of chemical field, specifically a kind of oil sludge separation method.Through adding clear water and greasy filth a, finishing with release agent b, sedimentation separation oil c, washing oil d and oil purification processing e operation.Employed release agent is an inorganic acid.The inventive method is separated greasy filth and is swift in response, and water is clearly easily handled and can be reused environmentally safe; Used release agent is easy to get, cost is low; Be suitable for the application of separating oil from greasy filth.
Description
Technical field
What the present invention proposed is the product isolation technics of chemical field, specifically a kind of oil sludge separation method.
Background technology
Before the present invention proposed, the method for separating oil was carried out heat treated to greasy filth usually from greasy filth, and then added release agent, and sedimentation separation obtains oil, effluent sewerage and mud.Employed release agent is generally nonionic, cation, anion or its surfactant that is mixed.It is excessive often that release agent adds, and is dissolved in the water body, makes sewage be difficult for clarifying treatment, causes the pollution of water body.Moreover the synthetic organic separating of polymer artificial also is not easy degraded in mud and water body, cause artificial pollution.
Summary of the invention
For overcome existing from greasy filth separating oil process complexity, the reaction settling time is long and release agent causes the shortcoming of environmental pollution easily, the present invention proposes a kind of oil sludge separation method.This method adopts inorganic acid to solve the isolation technics problem of oil, mud and water as release agent.
The present invention solves the scheme that its technical problem takes:
A, add clear water and greasy filth: be preheating to 70～95 ℃ add clear water in reactor after, add greasy filth then, stir, greasy filth is dispersed in the water body, be outstanding turbid pulpous state, insulation is handled under stirring;
D, with release agent: in outstanding roily oil mud, add the release agent aqueous solution and stir, form to mix and contain fluid;
C, sedimentation separation oil, water and silt: with mixing contain fluid be presented to container 1. in, quiescent settling is collected oil, effluent sewerage is removed silt;
D, washing oil: with collected oil join container 2. in, in it, add clear water, and fully stir, the water-soluble substances that makes in the oil to be contained is discharged in the water, realizes the pureization processing of oil, discharge water obtains wash oil.
E, oil purification are handled: place container 3. the wash oil that is obtained, and container or pond are tiltedly put, contained water during drop is fuel-displaced obtains pure oil.
The inventive method is separated greasy filth and is swift in response, and water is clearly easily handled and can be reused environmentally safe; Used release agent is easy to get, cost is low; Be suitable for the application of separating oil from greasy filth.
The specific embodiment
A, add clear water and greasy filth: in reactor, add clear water and be preheating to 70～95 ℃, add greasy filth then, stir, greasy filth is dispersed in the water body, be outstanding turbid pulpous state, under 50～70 ℃ of temperature conditions, stir insulation 15～50 minutes, make greasy filth water fully emulsified;
D, with release agent: in outstanding turbid mud, add the release agent aqueous solution, and stir, release agent is fully contacted with mud, destroy colloidal state, make oil and silt and moisture from, form mixing and contain fluid;
C, sedimentation separation oil, water and silt: mixing is contained fluid be presented to container 1. in the pond, quiescent settling, the oil accumulation layer swims in the surface of liquid, and sediment deposition is in the bottom of liquid, and water places between the two, collects oil, and effluent sewerage is removed silt, separates fuel-displaced;
D, washing oil: with collected oil join container 2. in, in it, add clear water, and fully stir, the water-soluble substances that makes in the oil to be contained is discharged in the water, collects wash oil;
E, oil purification are handled: place container 3. the oil that is obtained, and container or pond are tiltedly put, heating container or pond are at 30～50 ℃, and insulation is more than 60 minutes, and contained water during drop is fuel-displaced obtains pure oil.
Release agent is an inorganic acid, as sulfuric acid, hydrochloric acid, nitric acid or phosphoric acid.
Inorganic acid can replace cation down from greasy filth, form inorganic salts simultaneously, is dissolved in the water body, helps the pure of oil, destroys the saponification milkiness material of oil, water and silt simultaneously, makes oil, mud and water obtain separating.
Embodiment 1
1, from oil greasy filth, separates oil
A, add clear water and oil field mud: in reactor, add clear water, be preheating to 95 ℃, add greasy filth then, stir, greasy filth is dispersed in the water body, be outstanding turbid pulpous state, under 50 ℃ of state of temperatures, stir insulation 30 minutes, make greasy filth water fully emulsified;
D, with release agent: release agent adopts hydrochloric acid, and concentration is 20%, becomes the release agent aqueous solution by 1: 1 proportional arrangement of volumetric ratio, in outstanding turbid mud, add the release agent aqueous solution, and stir, release agent is fully contacted with mud, make oil be separated into to mix and contain fluid with silt and water;
C, sedimentation separation oil, water and silt: mixing is contained fluid be presented to container 1. in the pond, quiescent settling, the oil accumulation layer swims in the surface of liquid, and sediment deposition is in the bottom of liquid, and water places between the two, collects oil, and effluent sewerage is removed silt, obtains oil;
D, washing oil: with collected oil join container 2. in, in it, add clear water, and fully stir, the water-soluble substances that makes in the oil to be contained is discharged in the water, realizes the pureization processing of oil, obtains wash oil;
E, oil purification are handled: place container 3. the wash oil that is obtained, and container or pond are tiltedly put, heating container or pond are at 50 ℃, and insulation is more than 60 minutes, and contained water during drop is fuel-displaced obtains pure oil.
Embodiment 2
2, separating oil from trench greasy filth
A, add clear water and trench edible oil greasy filth: in reactor, add clear water and be preheating to 85 ℃, add greasy filth then, stir and be outstanding turbid pulpous state, under 40 ℃ of state of temperatures, stir insulation 40 minutes, make greasy filth water fully emulsified;
D, with release agent: release agent adopts hydrochloric acid, concentration is 20%, become the release agent aqueous solution by 1: 1 proportional arrangement of volumetric ratio, in outstanding turbid mud, add the release agent aqueous solution, and stir, release agent is fully contacted with mud, destroy colloidal state, make oil and silt and moisture from, form to mix and contain fluid;
C, sedimentation separation oil, water and silt: with mixing contain fluid be presented to container 1. in, quiescent settling, the oil accumulation layer swims in the surface of liquid, sediment deposition is in the bottom of liquid, water places between the two, collects oil, effluent sewerage is removed silt, separates fuel-displaced;
D, washing oil: with institute's separated and collected to oil join container 2. in, in it, add clear water, and fully stir, the water-soluble substances that makes in the oil to be contained is discharged in the water, realizes the pureization processing of oil, obtains wash oil.
E, oil purification are handled: place container 3. the oil that is obtained, and container or pond are tiltedly put, heating container or pond were incubated under 40 ℃ of temperature conditions more than 60 minutes, and contained water during drop is fuel-displaced obtains pure oil.
Claims (2)
1, a kind of oil sludge separation method is characterized in that:
A, add clear water and greasy filth: in reactor, add clear water and be preheating to 70～95 ℃, add greasy filth then, stir, greasy filth is dispersed in the water body, be outstanding turbid pulpous state, under 50～70 ℃ of temperature conditions, stir insulation 15～50 minutes, make greasy filth water fully emulsified;
D, with release agent: in outstanding turbid mud, add the release agent aqueous solution, and stir, release agent is fully contacted with mud, destroy colloidal state, make oil and silt and moisture from, form mixing and contain fluid;
C, sedimentation separation oil, water and silt: mixing is contained fluid be presented in first container, quiescent settling, the oil accumulation layer swims in the surface of liquid, and sediment deposition is in the bottom of liquid, and water places between the two, collects oil, and effluent sewerage is removed silt, separates fuel-displaced;
D, washing oil: the oil that step c is separated to joins in second container, adds clear water in it, and fully stirs, and the water-soluble substances that makes in the oil to be contained is discharged in the water, collects wash oil;
E, oil purification are handled: will place the 3rd container through the wash oil that steps d is collected, and container is tiltedly put, and heat the 3rd container at 30～50 ℃, insulation is more than 60 minutes, and contained water during drop is fuel-displaced obtains pure oil.
2, method according to claim 1 is characterized in that: release agent is an inorganic acid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100126391A CN100571913C (en) | 2007-08-27 | 2007-08-27 | A kind of oil sludge separation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100126391A CN100571913C (en) | 2007-08-27 | 2007-08-27 | A kind of oil sludge separation method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101112704A CN101112704A (en) | 2008-01-30 |
| CN100571913C true CN100571913C (en) | 2009-12-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2007100126391A Expired - Fee Related CN100571913C (en) | 2007-08-27 | 2007-08-27 | A kind of oil sludge separation method |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101280205B (en) * | 2008-02-22 | 2012-02-01 | 盖学会 | Recovery processing and comprehensive utilization process for oily sediment |
| CN101428247B (en) * | 2008-11-28 | 2011-07-27 | 天津市泰兴工贸有限公司 | Pollution-free oil-containing mud cleaning treatment method and treatment system thereof |
| CN102432148A (en) * | 2010-09-29 | 2012-05-02 | 中国石油化工股份有限公司 | Method for treating oil sludge of tertiary recovery |
| CN106830593A (en) * | 2017-03-10 | 2017-06-13 | 西安华诺环保股份有限公司 | Oily sludge three-phase separating device and its separation method |
| CN107188342A (en) * | 2017-07-25 | 2017-09-22 | 云南大地绿坤环保科技有限公司 | A kind of method of petrochemical industry greasy filth water mixed liquid quick separating |
| US11577182B2 (en) | 2020-01-09 | 2023-02-14 | Saudi Arabian Oil Company | Separation vessel and buoyant thermal energy transfer device for use therein |
| CN111533400A (en) * | 2020-06-03 | 2020-08-14 | 无锡市江南给排水设备有限公司 | Three-phase separating equipment for oil-containing silt (sand) |
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- 2007-08-27 CN CNB2007100126391A patent/CN100571913C/en not_active Expired - Fee Related
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Granted publication date: 20091223 Termination date: 20110827 |