CN100469861C - Cleaning agent and cleaning process for regenerating filter material in oil field sewage filtering tank - Google Patents
Cleaning agent and cleaning process for regenerating filter material in oil field sewage filtering tank Download PDFInfo
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- CN100469861C CN100469861C CNB2004100875391A CN200410087539A CN100469861C CN 100469861 C CN100469861 C CN 100469861C CN B2004100875391 A CNB2004100875391 A CN B2004100875391A CN 200410087539 A CN200410087539 A CN 200410087539A CN 100469861 C CN100469861 C CN 100469861C
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Abstract
The regenerating cleaning agent is water solution compounded with sodium dodecyl benzenesulfonate, alkylphenol ethoxylate or fatty alcohol polyoxyethylene ether 10-30 wt%; sodium polyacrylate or sodium lignosulfonate 5-15 wt%; and polyaluminium 1-3 wt% as well as water. The regenerating cleaning agent is thrown into the filtering tank to reach the concentration of 1-10 %, air, nitrogen or CO2 is led in for stirring, and the circulating system of the filtering tank itself may be used for circulation, so that the filtering material is made to release its adsorbed oily matter and other pollutant. The present invention has lower filtering material regenerating cost and high oil eliminating rate.
Description
Technical field: the present invention relates to the chemical agent and the regeneration washing process of physical chemistry oil removing, scale removal, be mainly used in the regeneration of filter material in oil field sewage filtering tank, belong to the technical field of greasy dirt matting.
Technical background: the oilfield sewage hay tank in use, particulate materials such as the oil in the sewage, suspended substance, polymkeric substance are adsorbed on filter material surface gradually, the pressure that recoils in the hay tank is constantly raise, and filterability constantly reduces, and causes hay tank finally to lose strainability.
The volume of filter tank is generally 20～50m, filtrates such as interior dress quartz sand, cobble, magnetic iron ore, brown coal slag.Before the hay tank media regeneration, total greasy dirt quantity of each hay tank filtrate absorption is generally 1～3m, and these smeary main components are crude oil.If adopt conventional cleaning agent and technology that media regeneration is cleaned, made to the greasy dirt in the jar, required clean-out system is more than at least 10 tons, and its expense is considerably beyond more renewing the required expense of filtrate.Moreover the greasy dirt degree of being emulsified into that cleans out with this ordinary method is very high, is difficult to utilize again.In addition, the greasy dirt water content that clears out is very big, and these greasy dirts are separated from water, and its processing costs is higher.Therefore, extensively adopt the mode of periodic replacement filtrate at present.
Summary of the invention:
Purpose of the present invention and task will solve in the media regeneration technology and exist: one, cleaning efficiency is low, cleans a hay tank and need use a large amount of clean-out systems and take the plenty of time; Two, clean the cost height: because cleaning and filtering jar filtrate makes the required chemical agent quantity of its regeneration big, thereby the cost height; As use artificial cleaning instead, except that labour intensity was big, its process was loaded down with trivial details, long in time limit, comprehensive cost is still very high; Three, the crude oil recovery difficulty is big, cost is high, and conventional greasy dirt major part of cleaning is emulsified state (water-in-oil or oil-in-water), and greasy dirt reclaims technology and raw materials such as needing emulsion splitter, and process complexity, cost height, practical significance are little.
Basic design of the present invention is to utilize physicochemical ultimate principle, synergy by gases such as tensio-active agent in the composition of selecting all kinds of colloidal structures, also utilization screening between suitable chemical composition destruction filtrate for use and air reaches the purpose that increases substantially the greasy dirt decreasing ratio, and greasy dirt is mainly isolated the filter tank system with non-emulsified state.
By analysis and research to oil removing mechanism and colloid network structure, employing screening and the systems approach of optimizing, on the basis of a large amount of experimental datas of arrangement, designing with three kinds of Chemical Composition is the main aqueous solution that is combined into and the de-oiling scrubbing technology that matches.
The aqueous solution regeneration cleaning agent that these three kinds of Chemical Composition compositions constitute is: the fatty alcohol-polyoxyethylene ether of (1) 10%～30% Sodium dodecylbenzene sulfonate or 10%～30% alkylphenol polyoxyethylene or 10%～30% (is the composition of 9-15 based on the polyoxyethylene number); (2) 5%～15% sodium polyacrylate or sodium lignosulfonate; (3) 1%～3% polymeric aluminum; All the other are water.Can also add the 1%-5% tripoly phosphate sodium STPP, increase and disperse complexing, under the identical condition of main component, increase cost hardly and just can further increase oil removal rate.
Oilfield sewage hay tank regeneration washing process, (1) 10%～30% Sodium dodecylbenzene sulfonate, 10%～30% alkylphenol polyoxyethylene or 10%～30% fatty alcohol-polyoxyethylene ether (the polyoxyethylene number is 9-15) by weight proportion, (2) 5%～15% sodium polyacrylate or sodium lignosulfonate, (3) 1%～3% polymeric aluminum, surplus are water configuration aqueous solution regeneration cleaning agent; Aqueous solution regeneration cleaning agent is dropped in the hay tank, and to make its concentration be 1%～10% bubbling air or nitrogen or CO
2Gas stirring also can utilize the circulating system device circulation of hay tank itself, makes the greasy dirt of filtrate absorption and other pollutent break away from filter material surface, makes media regeneration, recovers its filtering function.Clean the greasy dirt and other pollutent that make filtrate absorption by regeneration and break away from filter material surface, float, and be separated system to the solution upper strata.Thereby make media regeneration, filtering function is recovered.
Use chemical agent of the present invention and technology to carry out the regeneration of filter material in oil field sewage filtering tank, the required total amount of chemical agent is in 1 ton, and cost can be controlled in below 10,000 yuan, and the greasy dirt that removes accounts for more than 95% based on non-oil in water emulsion, can directly recycle.Using common grease-removing agent to carry out media regeneration needs stoste more than 5 tons at least, and the greasy dirt overwhelming majority that washes out exists with emulsified state.Lack any class in three kinds of major ingredient compositions and all will influence the regeneration result.All adopt first kind composition, the filtrate of also can regenerating in principle, but uneconomical economically, cost can be very high, the greasy dirt that washes out also is difficult to direct application.All adopt second based composition or the 3rd based composition also can make media regeneration in principle, but oil removal efficiency can be lower, regeneration cost equally can be very high.Have only that three based compositions are combined could more high efficiency regeneration filtrate.The effect of key ingredient is to reduce regeneration cost, improves oil removal rate, under the identical cost condition, compares with existing grease-removing agent and to improve oil removal rate at least more than 20%, and oil removal rate can reach more than 80% at least.Under the identical oil removal rate condition, cost reduces by 2 times at least.Further specify below in conjunction with embodiment.
Specific embodiment:
Embodiment one, a kind of filter material in oil field sewage filtering tank regeneration cleaning agent and regeneration washing process, regeneration cleaning agent is by Sodium dodecylbenzene sulfonate: 4%, fatty alcohol-polyoxyethylene ether (polyoxyethylene several 12 is main): 25%, tripoly phosphate sodium STPP: 3%, NaOH:5%, sodium lignosulfonate or sodium polyacrylate 14%, polymeric aluminum: 2.5%, all the other constitute for water; The regeneration cleaning agent dosage is 3% of a pot liquid weight, feeds CO
2Gas utilizes the circulating system device circular treatment 2 hours of hay tank itself under 24 ℃, oil removal rate reaches 95.2%.
Embodiment two, regeneration cleaning agent are by Sodium dodecylbenzene sulfonate: 4%, and alkylphenol polyoxyethylene: 10%, tripoly phosphate sodium STPP: 3%, NaOH:5%, polymeric aluminum: 1.5%, sodium lignosulfonate 10%, all the other are water; The regeneration cleaning agent dosage is 1% of the interior amount of liquid of hay tank, bubbling air, and utilize the circulating system device of hay tank itself to circulate normal temperature circular treatment 1hr, oil removal rate 85.8%
Embodiment three, by fatty alcohol-polyoxyethylene ether (polyoxyethylene several 10 is main): 10%; NaOH:5%; Sodium polyacrylate 9%; Polymeric aluminum 1%; Starso: 4%; All the other have constituted the filter material in oil field sewage filtering tank regeneration cleaning agent for water.The regeneration cleaning agent dosage is 10% of a pot liquid weight, feeds nitrogen utilizes hay tank itself under 14 ℃ of conditions circulating system device circulation 1hr, oil removal rate 90.8%
Embodiment four, by alkylphenol polyoxyethylene: 20%; Polymeric aluminum: 1.5%; Sodium polyacrylate 6%; All the other form regeneration cleaning agent for water.The regeneration cleaning agent dosage is 3% of the interior total solution of hay tank, feeds carbon dioxide and utilizes the hay tank back flushing recycle system to carry out wash cycles and soaked two hours, reaches oil removal rate 80.1%
Embodiment five, by alkylphenol polyoxyethylene: 20%; Polymeric aluminum 1.5%; Sodium polyacrylate 6%; Tripoly phosphate sodium STPP: 3%; All the other form regeneration cleaning agent for water.The regeneration cleaning agent dosage is 3% of the interior total solution of hay tank, feeds carbon dioxide and utilizes the hay tank back flushing recycle system to carry out wash cycles and soaked two hours, reaches oil removal rate 85.9%
Embodiment six, regeneration cleaning agent are by sodium lignosulfonate: 10%, and Sodium dodecylbenzene sulfonate: 18%, polymeric aluminum 3% adds in the solution mode that contains polymeric aluminum 10%, and surplus is a water.The solution of preparation can add hay tank in use, and dosage is 10% of the interior total solution of hay tank.Bubbling air utilizes the hay tank back flushing recycle system to carry out wash cycles and soaked two hours, reaches oil removal rate 83.5%
Embodiment seven, regeneration cleaning agent are made up of following: polyacrylic acid sodium salt 10%; Alkylphenol polyoxyethylene 30%; Polymeric aluminum 3%, all the other are water.The regeneration cleaning agent dosage is 5% of the interior total solution of hay tank, and bubbling air utilizes the hay tank back flushing recycle system to carry out wash cycles and soaked two hours, just reaches oil removal rate 90.9%.
Embodiment eight, regeneration cleaning agent are made up of following: alkylphenol polyoxyethylene 10%; Sodium dodecylbenzene sulfonate 12%; Polyacrylic acid sodium salt 5%; Sodium lignosulfonate 3%; NaOH.3%; Polymeric aluminum 1.5%.The regeneration cleaning agent dosage is 8% of the interior total solution of hay tank, and bubbling air utilizes the hay tank back flushing recycle system to carry out wash cycles and soaked two hours, just reaches oil removal rate 95.9%
Embodiment nine, regeneration cleaning agent are by Sodium dodecylbenzene sulfonate 30%; Sodium lignosulfonate 15%; Polymeric aluminum 3%; All the other constitute for water.The regeneration cleaning agent dosage is 4% of the interior total solution of hay tank, and bubbling air utilizes the hay tank back flushing recycle system to carry out wash cycles and soaked oil removal rate 91.8% two hours
Embodiment ten, fatty alcohol-polyoxyethylene ether (polyoxyethylene several 15 is main): 30%; Sodium lignosulfonate 18%; Polymeric aluminum 1.5%; All the other constitute regeneration cleaning agent for water.The regeneration cleaning agent input is full of in the hay tank of former filtered liquid, and input amount is 5% of the interior total solution of hay tank, and bubbling air stirs and soaked four hours, just reaches oil removal rate 92.8%.
Claims (4)
1, filter material in oil field sewage filtering tank regeneration cleaning agent, the aqueous solution that comprises the combination of three kinds of Chemical Composition, the part by weight of three kinds of Chemical Composition and water is respectively: the fatty alcohol-polyoxyethylene ether of (1) 10%～30% Sodium dodecylbenzene sulfonate or 10%～30% alkylphenol polyoxyethylene or 10%～30%; (2) 5%～15% sodium polyacrylate or sodium lignosulfonate; (3) 1%～3% polymeric aluminum; Surplus is a water.
2, as the said filter material in oil field sewage filtering tank regeneration cleaning agent of claim 1, it is characterized in that: add the 1%-5% tripoly phosphate sodium STPP.
3, oilfield sewage hay tank regeneration washing process, by the alkylphenol polyoxyethylene of (1) 10%～30% Sodium dodecylbenzene sulfonate by weight proportion or 10%～30% or 10%～30% fatty alcohol-polyoxyethylene ether, (2) 5%～15% sodium polyacrylate or sodium lignosulfonate, (3) 1%～3% polymeric aluminum, surplus are the aqueous solution regeneration cleaning agent of water preparation; Aqueous solution regeneration cleaning agent is dropped in the hay tank liquid, and to make its concentration be 1%～10% bubbling air or nitrogen or CO
2Gas stirring makes the greasy dirt of filtrate absorption and other pollutent break away from filter material surface, makes media regeneration, recovers its filtering function.
4, as the said oilfield sewage hay tank of claim 3 regeneration washing process, it is characterized in that: utilize the circulating system device circulation of hay tank itself.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100875391A CN100469861C (en) | 2004-11-11 | 2004-11-11 | Cleaning agent and cleaning process for regenerating filter material in oil field sewage filtering tank |
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| CNB2004100875391A CN100469861C (en) | 2004-11-11 | 2004-11-11 | Cleaning agent and cleaning process for regenerating filter material in oil field sewage filtering tank |
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| CN1772859A CN1772859A (en) | 2006-05-17 |
| CN100469861C true CN100469861C (en) | 2009-03-18 |
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Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101148636B (en) * | 2006-09-22 | 2010-09-29 | 比亚迪股份有限公司 | Regenerating method for solvent type liquid crystal cleaning agent |
| CN102965216B (en) * | 2012-11-15 | 2014-12-10 | 山东泰德新能源有限公司 | Oil cleaning agent for oil pipeline |
| CN102925305B (en) * | 2012-11-20 | 2014-04-30 | 华阳新兴科技（天津）集团有限公司 | Water-based cleaning agent for silicone grease and silicone oil |
| CN107345903A (en) * | 2016-05-06 | 2017-11-14 | 中国石油化工股份有限公司 | Oil field produced water process filtrate cleaning agent method of determination and evaluation |
| CN107162071A (en) * | 2017-05-26 | 2017-09-15 | 中油辽河工程有限公司 | Polymer-bearing waste-water filter leaching material cleaning |
| CN108070466A (en) * | 2017-12-21 | 2018-05-25 | 大庆吉益来科技有限公司 | A kind of oil field oil sludge cleaning agent and preparation method |
| CN108587820B (en) * | 2018-03-23 | 2020-08-28 | 江苏今日卫生用品有限公司 | Industrial detergent containing organic fluorine and preparation method thereof |
| CN110937778A (en) * | 2019-12-11 | 2020-03-31 | 新疆博云时代环保科技有限公司 | Oil sludge cleaning agent and preparation method thereof |
| CN115007572B (en) * | 2022-05-07 | 2023-11-24 | 大庆瑞雪石油科技开发有限公司 | Screen pipe blocking and scale removal and filter material oil removal cleaning process for sewage filtering tank of combined station |
| CN115491266B (en) * | 2022-10-26 | 2023-11-17 | 德仕能源科技集团股份有限公司 | Filter material cleaning agent and preparation method and application thereof |
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