CN105236698A - Microemulsion detergent for resource treatment of oil-containing solid waste, and preparation method and application thereof - Google Patents
Microemulsion detergent for resource treatment of oil-containing solid waste, and preparation method and application thereof Download PDFInfo
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- CN105236698A CN105236698A CN201510647330.4A CN201510647330A CN105236698A CN 105236698 A CN105236698 A CN 105236698A CN 201510647330 A CN201510647330 A CN 201510647330A CN 105236698 A CN105236698 A CN 105236698A
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Abstract
A microemulsion detergent for resource treatment of oil-containing solid waste, and a preparation method and an application thereof are provided. The microemulsion detergent comprises the components by the mass percentage: 1.2%-4.0% of fatty alcohol polyoxyethylene ether sulfate, 2.0%-4.0% of butyl lactate, 0.5%-1.0% of amyl propionate, 0.3%-0.9% of sodium chloride, and 91.1%-96% of water. The microemulsion detergent can be mixed with the oil-containing solid waste at room temperature, can complete repair treatment and can recycle oil resources with high efficiency; cheap and easily accessible NaCl is used as an electrolyte, other components have less amount, treatment operation is simple, three-phase separation is facilitated, and subsequent treatment of sludge is facilitated; and an intermediate liquid phase namely a microemulsion phase can also continue to be recycled, so that the cost is lower.
Description
Technical field
The invention belongs to environmental engineering PetroChina Company Limited. contaminated soil remediation field, be specifically related to a kind of micro-emulsion lotion for recycling treatment oily solid sludge and its preparation method and application.
Background technology
Oil and petrochemical industry can produce a large amount of oily solid sludge in the exploitation of crude oil or processed oil, transport, refining and oily water treatment process, be called for short greasy filth, mainly contain and land mud, drilling well mud and refinery tank bed mud, oil trap bed mud and residual active sludge etc.The annual oily sludge output of China is more than more than 500 ten thousand tons.Containing a large amount of poisonous and harmful compound in greasy filth, as benzene, phenol and polycyclic aromatic hydrocarbons etc., wherein majority has teratogenesis, carcinogenic and mutagenicity, very large to human health risk.Therefore, this kind of material is classified as priority pollutant by Environmental Protection Agency (USEPA, 1986), and hazardous solid waste catalogue is also listed in by China.Oily sludge is bulky, if mishandling or directly discharge, not only take a large amount of soil, also all can will pollute surrounding soil, water body, air, cause ecotope havoc.
At present, the treatment process of domestic and international greasy filth can be divided into physical chemistry treatment process (burning method, pyrolytic technique, pyrogenic process, hot washing method, solvent extration, immobilization facture etc.) and bioremediation (Traditional compost method, bio-reactor method, native till etc.).Wherein the general energy consumption of physico-chemical process is large, technological operation requirement is higher, and cost compare is high, and bioremediation treatment progress is slow, and the cycle is long, also needs to screen the bacterial classification of taming and effectively can decompose hydrocarbons.Greasy filth is a kind of pollutent, also be a kind of resource simultaneously, it has been generally acknowledged that the value just when oil-contg in greasy filth is more than 10% with recycling, although so treatment process is a lot, but great majority can not recycle oily resource, cause the wasting of resources to a certain extent.
Chinese patent CN201310703139.8 discloses the process that the present invention relates to Sludge in Oilfields, in particular to a kind for the treatment of process of Sludge in Oilfields resource utilization, treatment facility comprises sump oil sludge lifting device, vibratory screening apparatus, extractor, three phase separation tank, distillation tower, electro-flotation and filtration unit; Comprise mechanical picker except steps such as, solvent extraction, three phase separation, solvent recuperation and dregs of fat process.Operational process of craft of the present invention is more complicated loaded down with trivial details, and need lifting, vibration, extraction and electro-flotation etc., energy consumption is also higher.
Chinese patent CN201410623397.X discloses a kind of disposal of oily sludge medicament and preparation thereof, using method, the technical scheme that invention adopts is: a kind of disposal of oily sludge medicament, is grouped into by the one-tenth of following mass percentage: tensio-active agent 2.5wt% ~ 10.0wt%; Biological enzyme 0.25wt% ~ 2.0wt%; Calcium chloride 0.05wt% ~ 0.2wt%; Propylene glycol 5wt% ~ 10wt%; Surplus is water.Chinese patent application CN201310059581.1 discloses a kind of oily sludge recycling treatment washing lotion recycled, count by weight, comprise 1 ~ 6 part of anion surface activity (for one or more in vitriol, sulfonate, carboxylate salt, phosphate ester salt), 0 ~ 5 part of cats product (for one or more in quaternary ammonium salt and oxidation ammonium salt), 1 ~ 7 part of propyl carbinol or Pentyl alcohol, 1 ~ 3 part of ionogen and 79 ~ 97 parts of water.Above-mentioned washing lotion can be carried out process to greasy dirt and to be repaired or by the recovery of oil content in oily sludge, but oil phase can not directly be separated, and the more content of washing lotion component is higher, makes the cost configuring washing lotion higher.
Summary of the invention
the technical problem solved:the environmental pollution caused for oily solid sludge and oily problem of resource waste, the invention provides a kind of micro-emulsion lotion for recycling treatment oily solid sludge and its preparation method and application.Gained micro-emulsion lotion not only at room temperature can carry out effective repair process to greasy filth, and can reclaim oil content, and manipulation is simple.
technical scheme:for a micro-emulsion lotion for recycling treatment oily solid sludge, consisting of by mass percentage:
Fatty alcohol polyoxyethylene ether sulfate 1.2% ~ 4.0%
N-Butyl lactate 2.0% ~ 4.0%
Amyl propionate 0.5% ~ 1.0%
Sodium-chlor 0.3% ~ 0.9%
Water 91.1% ~ 96%.
Described fatty alcohol polyoxyethylene ether sulfate is polyoxyethylenated alcohol sodium sulfate.
For the preparation method of the micro-emulsion lotion of recycling treatment oily solid sludge, take fatty alcohol polyoxyethylene ether sulfate (AES) respectively as primary surfactant, n-Butyl lactate and amyl propionate are as cosurfactant or solubility promoter, sodium-chlor does ionogen and adds water stirring and evenly mixing, obtains micro-emulsion lotion.
For the application of the micro-emulsion lotion of recycling treatment oily solid sludge, at room temperature mixing with oily solid sludge of micro-emulsion lotion, micro-emulsion lotion and oily solid sludge mass ratio are 2:1 ~ 1:1.
Above-mentioned micro-emulsion lotion and oily solid sludge mass ratio are preferably 1:1.
After described micro-emulsion lotion processes oily solid sludge, be respectively oil phase, liquid phase and solid phase from top to bottom, this three-phase layering boundary line is obvious, and mesophase spherule and micro emulsion liquid phase are clears.
beneficial effect:microemulsion has very strong wetting, emulsification, solubilising and ultralow interfacial tension, spontaneous formation can not need additional energy, there is thermodynamic stability, the solubleness of hydrophobic petroleum-type in water can be strengthened, eluted by the oil of the attachment on solid matter, suitable proportioning can also realize oil phase, liquid phase and solid phase three-phase layering.Microemulsion system is generally by primary surfactant, cosurfactant, ionogen forms, in the present invention, fatty alcohol polyoxyethylene ether sulfate is as primary surfactant, hydrophilic radical and lipophilic group is comprised in its molecular chain, the interfacial tension between profit significantly can be reduced in system, it is the thermodynamically stable basis of microemulsion system, n-Butyl lactate, amyl propionate is as cosurfactant, it is present in the micelle fence of system, be embedded between the macromolecular space of tensio-active agent, film phase is jointly formed with tensio-active agent, the interfacial tension of microemulsion can be reduced, thus improve interface flexibility and mobility, interfacial film strength is increased, the microemulsion system formed is more stable, have adjusted the HLB value of system simultaneously, oil phase is played to the effect of solubilising, can be described as solubility promoter, NaCl cheap and easy to get makes inorganic electrolyte, the micelle-forming concentration (CMC) of ionogenic surfactant can be reduced after adding, also certain solublization is had to oil phase, the electric density of system can be increased simultaneously, weaken electrostatic repulsion between surfactants-polar head, the electrostatic double layer of compression microemulsion droplets, reduces the solubilising space of polar material.Primary surfactant plays a major role in oil sludge elution, but also need auxiliary agent and ionogen to assist solubilising oil phase, further raising elution efficiency, each component needs, with suitable proportion synergy, could realize the obvious three-phase layering in boundary line and middle liquid phase clear in addition.The present invention at room temperature can mix with oily solid sludge can complete repair process and energy high-level efficiency refiltered oil resource, other composition consumptions are also fewer, process simple to operate, be conducive to three phase separation and facilitate the subsequent disposal of mud, middle liquid phase and microemulsion phase can also continue to recycle, and make cost lower.
Accompanying drawing explanation
Fig. 1 is the application result figure of micro-emulsion lotion of the present invention; Be oil phase, liquid phase and solid phase three-phase layering from top to bottom in figure.
Embodiment
Below in conjunction with specific embodiment, the invention will be further described.
embodiment 1
The present embodiment specimen in use is oil-containing mud sand, and oil length is 17.00wt.%, water ratio 4.90wt.%.Take oil-containing mud sand 20g, the micro-emulsion lotion of the present invention adding equivalent obtained processes, polyoxyethylenated alcohol sodium sulfate solution (70%) 5.71wt.% of preparation, n-Butyl lactate 4wt.%, amyl propionate 1wt.%, sodium-chlor 0.5wt.%, surplus is water, through stirring and evenly mixing, centrifugal standing rear three phase separation, the residual oil content recording lower floor's solid phase is 1.14wt.%.
embodiment 2
The present embodiment specimen in use is the oil contaminated soil of aging half a year, and oil length is 26.45wt.%, and water ratio is 5.35wt.%.Take oily sludge 20g, the micro-emulsion lotion of the present invention adding equivalent obtained processes, polyoxyethylenated alcohol sodium sulfate solution (70%) 5.71wt.% of preparation, n-Butyl lactate 4wt.%, amyl propionate 1wt.%, sodium-chlor 0.9wt.%, surplus is water, through stirring and evenly mixing, centrifugal standing rear three phase separation, but boundary is not obvious, intermediate liquid compares muddiness, and the residual oil content recording lower floor's solid phase is 4.30wt.%.
embodiment 3
The present embodiment specimen in use is by the soil of crude oil pollution after three months, and oil length is 20.01wt.%, water ratio 1.53wt.%.Take oily sludge 20g, the micro-emulsion lotion of the present invention adding 40g obtained processes, polyoxyethylenated alcohol sodium sulfate solution (70%) 2.86wt.% of preparation, n-Butyl lactate 4wt.%, amyl propionate 0.6wt.%, sodium-chlor 0.3wt.%, surplus is water.Through stirring and evenly mixing, centrifugal standing rear three phase separation, the residual oil content recording lower floor's solid phase is 2.03wt.%, oil phase, liquid phase and solid phase, obviously as shown in the figure, upper strata oil is recyclable in this three-phase layering, middle liquid phase clear, then microemulsion phase can also continue to reclaim and processes greasy filth, and solid phase becomes the lower soil of oleaginousness after dehydration, convenient processes further.
embodiment 4
The present embodiment specimen in use is by the soil of crude oil pollution after three months, and oil length is 20.01wt.%, water ratio 1.53wt.%.Take oily sludge 20g, the micro-emulsion lotion of the present invention adding 20g obtained processes, polyoxyethylenated alcohol sodium sulfate solution (70%) 2.86wt.% of preparation, n-Butyl lactate 4wt.%, amyl propionate 0.6wt.%, sodium-chlor 0.3wt.%, surplus is water.Through stirring and evenly mixing, centrifugal standing rear three phase separation is obvious, and middle liquid phase clear inclusion-free, the residual oil content recording lower floor's solid phase is 2.56wt.%.
embodiment 5
The present embodiment specimen in use is by the soil of crude oil pollution after three months, and oil length is 20.01wt.%, water ratio 1.53wt.%.Take oily sludge 20g, the micro-emulsion lotion of the present invention adding 20g obtained processes, polyoxyethylenated alcohol sodium sulfate solution (70%) 2.86wt.% of preparation, n-Butyl lactate 2wt.%, amyl propionate 0.6wt.%, sodium-chlor 0.9wt.%, surplus is water.Through stirring and evenly mixing, centrifugal standing rear three phase separation, but boundary is not obvious, and intermediate liquid compares muddiness, and the residual oil content recording lower floor's solid phase is 3.06wt.%.
embodiment 6
The present embodiment specimen in use is by the soil of crude oil pollution after three months, and oil length is 20.01wt.%, water ratio 1.53wt.%.Take oily sludge 20g, the micro-emulsion lotion of the present invention adding 20g obtained processes, polyoxyethylenated alcohol sodium sulfate solution (70%) 1.71wt.% of preparation, n-Butyl lactate 4wt.%, amyl propionate 1wt.%, sodium-chlor 0.9wt.%, surplus is water.Through stirring and evenly mixing, centrifugal standing rear three phase separation is obvious, and middle liquid phase clear inclusion-free, the residual oil content recording lower floor's solid phase is 2.78wt.%.
Claims (5)
1., for a micro-emulsion lotion for recycling treatment oily solid sludge, it is characterized in that consisting of by mass percentage:
Fatty alcohol polyoxyethylene ether sulfate 1.2% ~ 4.0%
N-Butyl lactate 2.0% ~ 4.0%
Amyl propionate 0.5% ~ 1.0%
Sodium-chlor 0.3% ~ 0.9%
Water 91.1% ~ 96%.
2. a kind of micro-emulsion lotion for recycling treatment oily solid sludge according to claim 1, is characterized in that described fatty alcohol polyoxyethylene ether sulfate is polyoxyethylenated alcohol sodium sulfate.
3. described in claim 1 for the preparation method of the micro-emulsion lotion of recycling treatment oily solid sludge, it is characterized in that taking fatty alcohol polyoxyethylene ether sulfate (AES) respectively as primary surfactant, n-Butyl lactate and amyl propionate are as cosurfactant or solubility promoter, sodium-chlor does ionogen and adds water stirring and evenly mixing, obtains micro-emulsion lotion.
4. described in claim 1 for the application of the micro-emulsion lotion of recycling treatment oily solid sludge, it is characterized in that at room temperature mixing with oily solid sludge of micro-emulsion lotion, micro-emulsion lotion and oily solid sludge mass ratio are 2:1 ~ 1:1.
5. application according to claim 4, is characterized in that micro-emulsion lotion and oily solid sludge mass ratio are 1:1.
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| CN201510647330.4A CN105236698A (en) | 2015-10-09 | 2015-10-09 | Microemulsion detergent for resource treatment of oil-containing solid waste, and preparation method and application thereof |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108467797A (en) * | 2018-03-28 | 2018-08-31 | 中国石油大学(华东) | The processing method of microemulsion and its preparation method and application and oil-contained drilling cuttings |
| CN108585390A (en) * | 2017-03-16 | 2018-09-28 | 哈尔滨工业大学（威海） | A kind of self-stabilization micro-nano lotion and its application process in oily sludge separation |
| CN109570211A (en) * | 2018-10-24 | 2019-04-05 | 昆明理工大学 | A kind of method of renovation of organic pollution soil |
| CN109848196A (en) * | 2019-02-02 | 2019-06-07 | 上海泽复环境工程有限公司 | A kind of harmless treatment process of oil-polluted soils |
| CN113955919A (en) * | 2020-12-03 | 2022-01-21 | 段征宇 | Phase transfer agent for high-water-content oil sludge |
| CN115305359A (en) * | 2022-08-23 | 2022-11-08 | 成都先进金属材料产业技术研究院股份有限公司 | Method for selectively extracting copper from sulfur-cobalt concentrate leaching solution based on microemulsion |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108585390A (en) * | 2017-03-16 | 2018-09-28 | 哈尔滨工业大学（威海） | A kind of self-stabilization micro-nano lotion and its application process in oily sludge separation |
| CN108467797A (en) * | 2018-03-28 | 2018-08-31 | 中国石油大学(华东) | The processing method of microemulsion and its preparation method and application and oil-contained drilling cuttings |
| CN109570211A (en) * | 2018-10-24 | 2019-04-05 | 昆明理工大学 | A kind of method of renovation of organic pollution soil |
| CN109848196A (en) * | 2019-02-02 | 2019-06-07 | 上海泽复环境工程有限公司 | A kind of harmless treatment process of oil-polluted soils |
| CN113955919A (en) * | 2020-12-03 | 2022-01-21 | 段征宇 | Phase transfer agent for high-water-content oil sludge |
| CN113955919B (en) * | 2020-12-03 | 2023-06-02 | 段征宇 | Phase transfer agent for high-water-content oil sludge |
| CN115305359A (en) * | 2022-08-23 | 2022-11-08 | 成都先进金属材料产业技术研究院股份有限公司 | Method for selectively extracting copper from sulfur-cobalt concentrate leaching solution based on microemulsion |
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Application publication date: 20160113 |