CN104556625B - A kind of greasy filth emulsion splitter and oil soil treatment technique - Google Patents
A kind of greasy filth emulsion splitter and oil soil treatment technique Download PDFInfo
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- CN104556625B CN104556625B CN201310495736.6A CN201310495736A CN104556625B CN 104556625 B CN104556625 B CN 104556625B CN 201310495736 A CN201310495736 A CN 201310495736A CN 104556625 B CN104556625 B CN 104556625B
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G1/00—Production of liquid hydrocarbon mixtures from oil-shale, oil-sand, or non-melting solid carbonaceous or similar materials, e.g. wood, coal
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G1/00—Production of liquid hydrocarbon mixtures from oil-shale, oil-sand, or non-melting solid carbonaceous or similar materials, e.g. wood, coal
- C10G1/04—Production of liquid hydrocarbon mixtures from oil-shale, oil-sand, or non-melting solid carbonaceous or similar materials, e.g. wood, coal by extraction
- C10G1/045—Separation of insoluble materials
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G2300/00—Aspects relating to hydrocarbon processing covered by groups C10G1/00 - C10G99/00
- C10G2300/10—Feedstock materials
- C10G2300/1003—Waste materials
Abstract
The invention discloses a kind of greasy filth emulsion splitter and oil soil treatment technique.Greasy filth emulsion splitter comprises with parts by weight: fatty acid methyl ester ethoxylate 6 ~ 30 parts, dodecanamide propyl hydroxy sulfo lycine 2 ~ 13 parts, Green Additives 0.5 ~ 1 part, 56 ~ 91 parts, water.Oil soil treatment technique of the present invention, comprise following content: the greasy filth in storage sludge sump enters in mud tempering tank, add greasy filth emulsion splitter, carry out breakdown of emulsion process, greasy filth after breakdown of emulsion enters folded spiral shell formula sludge dewatering equipment and carries out solid-liquid separation, obtain filtrate and mud cake, filtrate enters gas-liquid mixed tank and air mixed, and mixture enters in separate tank and carries out oil, water, mud three phase separation.The water ratio of oily sludge can be reduced to about 50% from 80% ~ 98% by present invention process, can also reclaim the most of crude oil in oily sludge, greatly reduces the difficulty of mud subsequent disposal.
Description
Technical field
The present invention relates to a kind of greasy filth emulsion splitter and preparation method thereof, environment-friendly type greasy filth emulsion splitter particularly relating to a kind of fatty acids FMEE and preparation method thereof; The present invention relates to a kind of oil soil treatment technique simultaneously.
Background technology
Oil exploitation, collect defeated, black solid, the semisolid waste of a large amount of oil-containing can be produced in refining and oily water treatment process, be referred to as greasy filth (abbreviation greasy filth), its main component is oil, Ni Heshui.In greasy filth, solid particle size can from not enough micron to several inches, and great majority are between l to 100 micron, and crude oil kind, refinery structure and operational condition are depended in oil composition, and the composition of mud may change in time and change.According to statistics, nearly 3,000,000 tons of Chinese festiva produce oil mud, the crude resources wherein contained is about about 600,000 tons.Except containing except a large amount of aged crude oil, wax, colloidalmaterial in greasy filth, containing hazardous and noxious substances such as a large amount of benzene homologues, phenols, anthracene, pyrene, polychlorobiphenyl and Dioxins.In addition also contain a large amount of pathogenic bacterias, parasite in greasy filth, if do not carried out rationally effective process, not only can waste petroleum resources, also can cause severe contamination to environment.
The technology of current process greasy filth mainly contains resource reclaim, harmless treatment and comprehensive utilization technique etc.Resource reclaim treatment technology comprises solvent extration, WATER-WASHING METHOD, micro emulsion washing, breakdown of emulsion method etc.Greasy filth innoxious process for treating comprises immobilization process, the technology such as biological treatment, burning.Comprehensive utilization technique comprises thermolysis, brickmaking is paved the way and other purposes.The treatment technology of greasy filth is varied, and often kind of method has respective relative merits and the scope of application.
Have the advantages such as activity is high, instant effect due to chemical demulsifier, adding emulsion splitter is breaking method the most frequently used at present.The shortcomings such as it is low that emulsion splitter conventional at present mainly also exists oil recovery rate, biological degradability difference.CN101050380A discloses a kind of base oildeemulsifier in high performance and preparation method thereof, and the composition principle of this emulsion splitter take W-Gum as starting raw material, introduces after conventional polyether type emulsion splitter carries out graft copolymerization and obtains.This emulsion splitter has the features such as service temperature gentleness, cost is low, demulsification is good, but preparation process is comparatively complicated, also needs to add protonic acid and organic solvent, is unfavorable for environmental protection, and concrete demulsification also lacks the support of related data.CN101418230A discloses a kind of crude oil demulsifier and preparation method thereof, and this emulsion splitter is the polyether compound that polyamide-amide compound and epoxy compounds obtain through alkoxylation.This emulsion splitter has good interfacial activity and penetrating power, has good breakdown of emulsion ability to crude oil emulsion, but the preparation of this emulsion splitter is complicated, and cost is high, is unfavorable for practical application.CN102041038A discloses a kind of method for treating ageing oil of viscous oil, this invention provide firstly a kind of viscous crude ageing oil emulsion splitter obtained by the mixing of phenol, vinylbenzene, polyethylene polyamine, formaldehyde, oxyethane and propylene oxide, this emulsion splitter has good breakdown of emulsion function, the destruction for oil-water interfacial film can be realized, but biological degradability is poor, large to the subsequent affect of environment.
Summary of the invention
For the deficiencies in the prior art, the invention provides a kind of greasy filth emulsion splitter and preparation method thereof.This emulsion splitter is good to greasy filth demulsification, and oil recovery rate is high, and environmental protection, production cost is low, preparation method is easy and be widely used.The present invention provides a kind of economy, oil soil treatment technique effective, applied widely simultaneously.
Greasy filth emulsion splitter of the present invention, comprises with parts by weight: fatty acid methyl ester ethoxylate 6 ~ 30 parts, dodecanamide propyl hydroxy sulfo lycine 2 ~ 13 parts, Green Additives 0.5 ~ 1 part, 56 ~ 91 parts, water.
The structural formula of described fatty acid methyl ester ethoxylate (FMEE) is RCO (OCH
2cH
2) nOCH
3, wherein R=C
8~ C
18, n=1 ~ 10.
The chemical structural formula of described dodecanamide propyl hydroxy sulfo lycine (LHSB) is RCONH (CH
2)
3n
+(CH
3)
2cH
2cH (OH) CH
2sO
3 -, wherein R is C
8~ C
14alkyl.
Described Green Additives is one or more of Trisodium Citrate, sodium oleate, Sunmorl N 60S, sodium-chlor or Repone K.
Greasy filth emulsion splitter of the present invention can also add inhibiter as required, as one or more in type oxide film inhibiter, deposition membranous type inhibiter or adsorbed film type inhibiter, the add-on of inhibiter according to actual needs, generally accounts for 0.1% ~ 1% of greasy filth emulsion splitter weight.
The preparation method of greasy filth emulsion splitter of the present invention, comprises following content: fatty acid methyl ester ethoxylate, dodecanamide propyl hydroxy sulfo lycine, Green Additives and water are mixed and obtain greasy filth emulsion splitter.Wherein mixing time is 20 ~ 70 minutes, and mixing temperature is 40 ~ 55 DEG C.
Greasy filth emulsion splitter of the present invention can be applied to the harmless treatment of tank bottom oil sludge, scum silica frost and active sludge, and also can be applied to the process of the various greasy filth of oil production and Transportation Enterprise generation, the greasy filth high to oil length is particularly applicable.
The oil soil treatment technique of the greasy filth emulsion splitter described in use of the present invention, comprise following content: the greasy filth in storage sludge sump enters in mud tempering tank, add greasy filth emulsion splitter, carry out breakdown of emulsion process, greasy filth after breakdown of emulsion enters folded spiral shell formula sludge dewatering equipment and carries out solid-liquid separation, obtain filtrate and mud cake, filtrate enters gas-liquid mixed tank and air mixed, and mixture enters in separate tank and carries out oil, water, mud three phase separation.Emulsion splitter mixing time in mud tempering tank is 30 ~ 40 minutes, and tempering tank temperature controls at 40 ~ 60 DEG C.
Described folded spiral shell formula sludge dewatering equipment is made up of sludge condensation and sludge dewatering two portions.Under gravity, water leaches from the lamination gap of relative movement, realizes rapid concentration.Through concentrated mud along with the rotation of screw shaft in water extracter is constantly moved forward, under the effect of the pressure, the moisture in mud is squeezed discharge, and mud cake solid content constantly raises, and finally realizes the continuously dehydrating of mud.Wherein, mud cake is transported by worm conveyor, and the techniques such as landfill, extraction heat, pyrolysis, burning, compost or mummification can be selected to process; Filtrate main component is water, oil, residue mud and the impurity lighter than water, and filtrate enters gas-liquid mixed tank, utilizes the aerating apparatus introducing air bottom mixing tank to form microbubble, microbubble is fully mixed with filtrate, forms mixture, enter separate tank.
Described separate tank is provided with flap shape slag-guiding plate device; Flap shape slag-guiding plate is made up of anterior swash plate, front straight plate, middle part swash plate, the straight plate in rear portion and rear portion swash plate, wherein the straight plate in middle part and the straight plate level in rear portion are placed, anterior swash plate is lower than front straight plate, middle part swash plate is lower than front straight plate, the straight plate in rear portion is lower than middle part swash plate, and rear portion swash plate is higher than the straight plate in rear portion; After dreg scraper contacts with anterior swash plate, entering sump oil on front straight plate all along with after dreg scraper moves through middle part swash plate and the straight plate in rear portion, can overflow from rear portion swash plate, enters in withdrawing can.
Fatty acid methyl ester ethoxylate (FMEE) in greasy filth emulsion splitter of the present invention is a kind of nonionogenic tenside of low foam, and (lower than 60 DEG C) have excellent breakdown of emulsion and dispersing property under cryogenic.Fatty acid methyl ester ethoxylate pungency extremely low gentle to skin, resistance to hard water is strong, biological degradability is excellent, toxicity is low and other tensio-active agent compatiblenesies good, with low cost.Dodecanamide propyl hydroxy sulfo lycine (LHSB) this product is a kind of zwitterionics, under acidity and alkaline condition, all have excellent low-temperature stability, nontoxic, pungency is little, biological degradability is high, good with the compatibility of other tensio-active agents.FMEE and LHSB of the present invention has higher synergy, and composite use is specially adapted to the breakdown of emulsion reaction of greasy filth.
Emulsion splitter of the present invention compares with traditional emulsion splitter, has the following advantages:
(1) nonionic green surfactant fatty acid methyl ester ethoxylate is adopted to be primary surfactant in emulsion splitter of the present invention, composite with amphoterics dodecanamide propyl hydroxy sulfo lycine, more auxiliary Green Additives, demulsification is good;
(2) emulsion splitter biological degradability of the present invention is good, little on the impact of environment, environmental protection;
(3) production cost of emulsion splitter of the present invention is low, and preparation method is easy, applied widely, is easy to industrial application;
(4) separate tank in present invention process is provided with flap shape slag-guiding plate device, this flap shape slag-guiding plate device, not only scrapes slag easily, thoroughly, and sump oil is not easily from reflux bottom dreg scraper, guarantees the water quality of water outlet, also improves the rate of recovery of sump oil;
(5) the folded spiral shell formula sludge dewatering equipment adopted in present invention process, dehydrating effect is good, and cost is low, easy to maintenance, and it has self-cleaning function, blockage problem can not occur, and only needs a small amount of water to rinse, without secondarily polluted water, meets environmental protection concept requirement;
(6) emulsion splitter of the present invention is combined with greasy filth demulsification technology of the present invention, not only the water ratio of greasy filth can be reduced to about 50% from 80% ~ 98%, can also reclaim the most of crude oil in greasy filth, greatly reduces the difficulty of mud subsequent disposal.
Accompanying drawing explanation
Fig. 1 is oil soil treatment technique schematic flow sheet of the present invention.
Wherein, 1-storage sludge sump, 2-sludge pump, 3-mud tempering tank, 4-dosing pump, 5-medicine dissolving and adding system, 6-folds spiral shell formula sludge dewatering equipment, 7-filtrate, 8-gas-liquid mixed tank, 9-mud cake, 10-sludge dispoal device, 11-separate tank, 12-scum silica frost, 13-oil skimming tank, 14-sewage, 15-sewage work, 16-excess sludge.
Fig. 2 is the structural representation of separate tank slag-guiding plate in oil soil treatment technique of the present invention.
Wherein, the anterior swash plate of 1-, 2-front straight plate, swash plate in the middle part of 3-, the straight plate in 4-rear portion, 5-rear portion swash plate, 6-separate tank pond body.
Embodiment
Below in conjunction with embodiment, the present invention is further illustrated, but therefore do not limit the present invention.Proportioning raw materials in embodiment is with parts by weight.Oil soil treatment technique process of the present invention is carried out all at normal temperatures and pressures except mud tempering tank.
The present invention is realized by following technological process: first pump in mud tempering tank 3 by the mud in storage sludge sump 1 by sludge pump 2, uniform stirring mud.Aqueous emulsion splitter is put in mud tempering tank 3 by dosing pump 4 and is carried out the process of mud breakdown of emulsion by medicine dissolving and adding system 5.Mud after breakdown of emulsion process enters folded spiral shell formula sludge dewatering equipment 6 by drainage.Water extracter 6 is provided with sludge condensation and sludge dewatering two portions device.Under gravity, water leaches from the lamination gap of relative movement, realizes rapid concentration.Through concentrated mud along with the rotation of screw shaft is constantly moved forward, under the effect of the pressure, the moisture in mud is squeezed discharge, and mud solid content constantly raises, and finally realizes the continuously dehydrating of mud.Moisture in mud forms filtrate 7 after being squeezed in water extracter and discharging, and mud forms mud cake 9 after continuously extruded dehydration.The mud cake 9 formed after processed is transported by worm conveyor, and the sludge dispoal devices 10 such as landfill, extraction heat, pyrolysis, burning, compost or mummification can be selected to carry out subsequent disposal to it.Be water, oil, residue mud and the impurity lighter than water from the main component of water extracter 6 filtrate 7 out, this mixed solution is pumped in gas-liquid mixed tank 8.After the microbubble that aerating apparatus in mixing tank 8 produces fully mixes with filtrate 7, gas-liquid mixture is passed into separate tank 11 and carry out oil, water, mud three phase separation.Gas-liquid mixture utilizes microbubble to adsorb and carries oil-in-water and suspended substance and floats up to liquid level and form scum silica frost 12 in separate tank.The isolated scum silica frost of separate tank 11 utilizes slag scraper to be recycled to oil skimming tank 13, and the sewage 14 in separate tank middle layer is sent into sewage work 15 and carried out subsequent disposal, and the excess sludge 16 bottom separate tank is sent storage sludge sump back to and processed.
Embodiment 1
By fatty acid methyl ester ethoxylate (R=C
18, n=7) and 28 parts, dodecanamide propyl hydroxy sulfo lycine (R=C
12) 2 parts, Sunmorl N 60S 1 part, 69 parts, water is that in the reactor of 55 DEG C, mixing obtains greasy filth emulsion splitter in 40 minutes in temperature.
Embodiment 2
By fatty acid methyl ester ethoxylate (R=C
16, n=7) and 10 parts, dodecanamide propyl hydroxy sulfo lycine (R=C
12) 5 parts, sodium oleate 1 part, 84 parts, water is that in the reactor of 55 DEG C, mixing obtains greasy filth emulsion splitter in 35 minutes in temperature.
Embodiment 3
By fatty acid methyl ester ethoxylate (R=C
18, n=7) and 14 parts, dodecanamide propyl hydroxy sulfo lycine (R=C
12) 7 parts, sodium oleate 1 part, 78 parts, water is that in the reactor of 52 DEG C, mixing obtains greasy filth emulsion splitter in 35 minutes in temperature.
Embodiment 4
For certain refinery's tank bottom oil sludge, the specific embodiment of the invention is described.The greasy filth content analysis of charging is in table 1.Selected greasy filth emulsion splitter is with embodiment 1, and emulsion splitter dosage is 3% of greasy filth weight.Emulsion splitter mixing time in mud tempering tank is 35 minutes, and tempering tank temperature controls at about 55 DEG C.Adopt present invention process process greasy filth, the water ratio of discharging mud cake reduces to 50.3% ~ 53.4%, and oil length is 14.8% ~ 21.6%, as shown in table 2.By material balance, mud volume after processed at least reduces 10 times, greatly reduces the difficulty of mud subsequent disposal.Chemical oxygen demand (COD) (COD) in filtrate and suspended substance (SS) content as shown in table 3, it reduce the difficulty of later stage sewage disposal.After present invention process process, the isolated scum silica frost in separate tank top utilizes slag scraper to recycle, and the sewage in separate tank middle layer is sent into sewage work and carried out subsequent disposal, and the excess sludge bottom separate tank is sent storage sludge sump back to and processed.Calculate according to charging-1, the final oil recovery rate of greasy filth technique of the present invention is 98.1%.
Table 1 greasy filth content analysis table.
Table 2 greasy filth dewatered cake content analysis table.
| Label | Water ratio (%) | Oil length (%) | Solid content (%) |
| Mud cake-1 | 50.3 | 18.8 | 30.9 |
| Mud cake-2 | 51.6 | 14.8 | 33.6 |
| Mud cake-3 | 53.4 | 18.5 | 28.1 |
| Mud cake-4 | 53.3 | 20.9 | 25.8 |
| Mud cake-5 | 53.3 | 21.6 | 25.1 |
Table 3 greasy filth dehydration filtrate content analysis table.
| Label | Oil length (mg/L) | COD(mg/L) | SS(mg/L) |
| Filtrate-1 | 48.9 | 413 | 36.6 |
| Filtrate-2 | 51.3 | 425 | 37.9 |
| Filtrate-3 | 41.8 | 328 | 39.8 |
| Filtrate-4 | 47.2 | 395 | 52.5 |
| Filtrate-5 | 47.5 | 401 | 48.4 |
Comparative example 1
Selected greasy filth composition is with the charging-1 of embodiment 4, and selected treatment process is with embodiment 4, and just emulsion splitter is different.
According to 3% of greasy filth weight, in mud tempering tank, add polyether type demulsifying agent SP169 by medicine dissolving and adding system.After the art breading of embodiment 1, the isolated scum silica frost in separate tank top utilizes slag scraper to recycle, and the sewage in separate tank middle layer is sent into sewage work and carried out subsequent disposal, and the excess sludge bottom separate tank is sent storage sludge sump back to and processed.The final oil recovery rate of this technique is 76.7%.
Comparative example 2
Selected greasy filth composition is with the charging-1 of embodiment 4.
According to 3% of greasy filth weight, emulsion splitter is put into by dosing pump in the mud tempering tank storing greasy filth and is carried out the process of greasy filth breakdown of emulsion by medicine dissolving and adding system.Greasy filth after breakdown of emulsion process is pumped in slurry tank and carry out heat preservation settlement 8 hours, the greasy filth after sedimentation is passed in three-phase centrifuge and carries out three phase separation process.The final oil recovery rate of this technique is 85.8%.
Comparative example 3
Selected greasy filth composition is with the charging-1 of embodiment 4, and selected treatment process is with embodiment 4, and just emulsion splitter is different.By fatty acid methyl ester ethoxylate (R=C
18, n=7) and 25 parts, sodium oleate 1 part, 74 parts, water is that in the reactor of 52 DEG C, mixing obtains greasy filth emulsion splitter A for 35 minutes in temperature.
According to 3% of greasy filth weight, in mud tempering tank, add emulsion splitter A by medicine dissolving and adding system.After the art breading of embodiment 1, the isolated scum silica frost in separate tank top utilizes slag scraper to recycle, and the sewage in separate tank middle layer is sent into sewage work and carried out subsequent disposal, and the excess sludge bottom separate tank is sent storage sludge sump back to and processed.The final oil recovery rate of this technique is 72.7%.
Comparative example 4
Selected greasy filth composition is with the charging-1 of embodiment 4, and selected treatment process is with embodiment 4, and just emulsion splitter is different.By dodecanamide propyl hydroxy sulfo lycine (R=C
12) 25 parts, sodium oleate 1 part, 74 parts, water is that in the reactor of 52 DEG C, mixing obtains greasy filth emulsion splitter B for 35 minutes in temperature.
According to 3% of greasy filth weight, in mud tempering tank, add emulsion splitter B by medicine dissolving and adding system.After the art breading of embodiment 1, the isolated scum silica frost in separate tank top utilizes slag scraper to recycle, and the sewage in separate tank middle layer is sent into sewage work and carried out subsequent disposal, and the excess sludge bottom separate tank is sent storage sludge sump back to and processed.The final oil recovery rate of this technique is 64.3%.
Claims (8)
1. a greasy filth emulsion splitter, is characterized in that: comprise with parts by weight: fatty acid methyl ester ethoxylate 6 ~ 30 parts, dodecanamide propyl hydroxy sulfo lycine 2 ~ 13 parts, Green Additives 0.5 ~ 1 part, 56 ~ 91 parts, water; Wherein said Green Additives is one or more of Trisodium Citrate, sodium oleate, Sunmorl N 60S, sodium-chlor or Repone K.
2. according to greasy filth emulsion splitter according to claim 1, it is characterized in that: the chemical structural formula of described dodecanamide propyl hydroxy sulfo lycine (LHSB) is RCONH (CH
2)
3n
+(CH
3)
2cH
2cH (OH) CH
2sO
3 -, wherein R is C
8~ C
14alkyl.
3. according to greasy filth emulsion splitter according to claim 1, it is characterized in that: add one or more in type oxide film inhibiter, deposition membranous type inhibiter or adsorbed film type inhibiter in greasy filth emulsion splitter, the add-on of inhibiter accounts for 0.1% ~ 1% of greasy filth emulsion splitter weight.
4. a preparation method for greasy filth emulsion splitter according to claim 1, is characterized in that comprising following content: fatty acid methyl ester ethoxylate, dodecanamide propyl hydroxy sulfo lycine, Green Additives and water are mixed and obtain greasy filth emulsion splitter; Wherein mixing time is 20 ~ 70 minutes, and mixing temperature is 40 ~ 55 DEG C.
5. a greasy filth emulsion splitter according to claim 1 is applied to the process of the various greasy filth that the harmless treatment of scum silica frost and active sludge and oil production and Transportation Enterprise produce.
6. one kind uses the oil soil treatment technique of the greasy filth emulsion splitter described in claim 1, it is characterized in that comprising following content: the greasy filth in storage sludge sump enters in mud tempering tank, add greasy filth emulsion splitter, carry out breakdown of emulsion process, greasy filth after breakdown of emulsion enters folded spiral shell formula sludge dewatering equipment and carries out solid-liquid separation, obtain filtrate and mud cake, filtrate enters gas-liquid mixed tank and air mixed, and mixture enters in separate tank and carries out oil, water, mud three phase separation.
7. according to technique according to claim 6, it is characterized in that: emulsion splitter mixing time in mud tempering tank is 30 ~ 40 minutes, and tempering tank temperature controls at 40 ~ 60 DEG C.
8. according to technique according to claim 7, it is characterized in that: described separate tank is provided with flap shape slag-guiding plate device; Flap shape slag-guiding plate is made up of anterior swash plate, front straight plate, middle part swash plate, the straight plate in rear portion and rear portion swash plate, wherein the straight plate in middle part and the straight plate level in rear portion are placed, anterior swash plate is lower than front straight plate, middle part swash plate is lower than front straight plate, the straight plate in rear portion is lower than middle part swash plate, and rear portion swash plate is higher than the straight plate in rear portion.
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| CN108350348A (en) * | 2015-08-26 | 2018-07-31 | 罗地亚经营管理公司 | High-performance environment-friendly non-emulsifiers |
| CN108423964A (en) * | 2018-03-26 | 2018-08-21 | 甘肃新鑫能源工程有限公司 | A kind of tank bottom oil sludge minimizing treatment process |
| CN111977924B (en) * | 2018-04-03 | 2022-11-08 | 任航 | Harmless recycling treatment method for oily sludge |
| US10479762B1 (en) | 2019-02-06 | 2019-11-19 | King Fahd University Of Petroleum And Minerals | Zwitterionic surfactant containing ethoxylate units |
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| JPS6038007A (en) * | 1983-08-11 | 1985-02-27 | Yks Co Ltd | Oil-water separator for ship |
| US20130072414A1 (en) * | 2011-09-20 | 2013-03-21 | The Procter & Gamble Company | Detergent compositions comprising sustainable surfactant systems comprising isoprenoid-derived surfactants |
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| CN1362373A (en) * | 2001-01-05 | 2002-08-07 | 中国石油化工股份有限公司 | Oily sewage processing method |
| CN1730729A (en) * | 2005-06-16 | 2006-02-08 | 广州天至环保科技有限公司 | Biological degreasing agent used in metal processing pretreatment of oil removing and degreasing, and method for processing metal surface greasy dirt |
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