CN102295979A - Regenerating process of waste lubricating oil - Google Patents
Regenerating process of waste lubricating oil Download PDFInfo
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- CN102295979A CN102295979A CN2011102072617A CN201110207261A CN102295979A CN 102295979 A CN102295979 A CN 102295979A CN 2011102072617 A CN2011102072617 A CN 2011102072617A CN 201110207261 A CN201110207261 A CN 201110207261A CN 102295979 A CN102295979 A CN 102295979A
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Abstract
The invention discloses a regenerating process of waste lubricating oil, comprising the steps of dehydration, pickling, alkali washing and decoloring. According to the regenerating process disclosed in the invention, large-scale industrial production with high efficiency and environmental protection can be realized, and the product obtained by the process meets national standards.
Description
Technical field
The invention belongs to chemical field, in particular to a kind of process for regeneration of waste lubricating oil.
Background technology
Lubricating oil is commonly called as machine oil, is widely used in the transmission position of automobile, boats and ships, various industrial equipments and various machineries.Lubricating oil in use because oxygenizement has produced many oxidation productss, these materials accumulate in the oil, make oil every physico-chemical property change.Dust impurity of in use carrying secretly in addition or leaking and water etc. also can reduce the quality of oil product; Just produced a large amount of waste lubricating oils like this.
Only 2008, the lubricating oil consumption of China reached about 6,000,000 tons, produced a large amount of waste lubricating oils thus, and the present recovery utilization rate of China has only 20%.From environmental, waste lubricating oil directly discharging meeting pollutes underground water, and soil is damaged; If directly atmosphere has not only been polluted in burning, Greenhouse effect have also been increased simultaneously.From economic angle, these waste lubricating oils be if can reclaim, then in industrial production to saving energy and reduce the cost, effectively bringing into play equipment potential, reducing production costs plays crucial effect.These waste lubricating oils, real reclaim but less than 20%, great majority have been sold the small business that some recovery technologies fall behind or have been flowed to irregular channel with about 500 yuan/ton price, even directly discharge, and have caused the significant wastage and the environmental pollution of resource.
More domestic experts, scholar have done big quantity research to waste lubricating oil, and, multiple recovery method has been proposed.As utilize waste lubricating oil extracting gasoline, diesel oil, produce stainless steel stretched oil and defoamer or the like.Some enterprises are also arranged with its industrialization, relatively the forward position has Chinese environmental protection fuel oil Group Co.,Ltd (CEPFG), Wuhan auspicious Hong Xin Fuel Tech. Inc. and Rui Feng Bamda (Wuhan) Science and Technology Ltd. etc.But these technology are still immature, and it is higher that it reclaims price.In addition; more existing enterprises, as Nanzheng chemical company, Chenggu fertilizer plant etc., it reclaims technology and has deficiencies such as flow process is coarse, cost recovery is high, the rate of recovery is low; be difficult to satisfy the production requirement of enterprise's " stable cover with excellent " and " low consumption high yield ", the utmost point need be developed new recovery technology.
Abroad, the U.S. is waste lubricant oil regeneration country the earliest in the world, also once be rerefined oil at most, country that regeneration rate is the highest.European community country is because petroleum resources lack, and they are considered as precious resources to waste lubricating oil.Again be processed as the common-denominator target that base oil becomes European waste oil regeneration industry after the waste oil regeneration.Waste oil regeneration industry in Europe has about 3500 people of employee (comprising waste oil collection and management), 450,000 tons of base oils of annual production, and annual sales amount reaches hundred million Euros of 2-2.5.Application market that the base oil that adopts state-of-the-art technology reprocessing to obtain is opened offers the petroleum products blending merchant of middle-size and small-size scale more.It is about 10% that waste oil regeneration only accounts for lubricating oil market, West Europe, mainly in Germany and Italian.The member of Europe waste oil regeneration industrial group (GEIR) accounts for European waste oil regeneration total capacity about 90%.In recent years, because the standard that various countries make laws to the attention and the waste oil of environment, the waste lubricating oil of refining again of many countries obtains subsidy, develops numerous technology of rendering industry again, wherein many patent rights of also having authorized.
In recent years, oil price is free and easy indefinite, and the fluctuation in international crude oil market is deepened day by day to domestic waste lubricating oil market clout degree.From supply of raw material, domestic waste lubricating oil market capacity is bigger, and recuperable ratio is also higher.But most lubricating oil efficient recovery parts only account for 20%.Moreover, because the waste lubricating oil of domestic market all is a mixed storage, so the quality of waste lubricating oil is uneven.Though relevant government department of country has formulated industry standard, is difficult to effective execution in actual application.
Therefore, domestic waste lubricant oil regeneration industry also has sizable development space, though the reclaiming process of existing multiple comparative maturity, but these reclaim technology and have more problem in actual applications, and it is higher to reclaim the technology cost, the rate of recovery is low, has limited its application greatly.From now on, but reclaim technology and should develop towards large-scale industrial production, high-efficiency environment friendly and the direction that improves the rate of recovery.
Summary of the invention
In order to regenerate to waste lubricating oil, the present invention adopts following technical scheme:
One aspect of the present invention relates to a kind of process for regeneration of waste lubricating oil, comprises the steps:
1) dewaters: waste lubricating oil is placed reactor, blast water vapor, feed water vapor in the chuck, stop heating after being warming up to 70-80 ℃, leave standstill, the water of bottom is drained, continue then to give in the chuck to feed water vapor, slowly be warming up to more than 120 ℃, oil does not stir, and the pasta black oil gas of emerging can stop;
2) pickling: treat oil cooling to normal temperature, under agitation add the vitriol oil lentamente, the sulfuric acid consumption is the 5-7% of oil mass, continues to stir, and leaves standstill then, and vacuum filtration drains acid sludge;
3) alkali cleaning: the lubricating oil of pickling is changed in another reactor, be heated to 70-90 ℃, under agitation slowly add powdered sodium carbonate, the consumption of yellow soda ash accounts between the quality of lubrication oil 4-6%, after stirring, and standing demix, lower floor's fluid body filters, and alkaline residue is drained;
4) decolouring: oil is warming up to 120-140 ℃, adds consumption at constant temperature with under stirring and be 6.0% atlapulgite of oil mass, add atlapulgite after, continue to stir, leave standstill at 110-120 ℃ of following constant temperature, with filtering, filtrate is rerefined oil while hot.
In a preferred embodiment of the present invention, it is characterized in that the filtration described in step 3 and/or 4 is meant that employing plate and frame filter filters under 3MPa.
Adopt reclaiming process of the present invention, but large-scale industrial production, high-efficiency environment friendly, and products obtained therefrom meets national standard.
Embodiment
Embodiment 1: a kind of process for regeneration of waste lubricating oil:
1) dewaters: waste lubricating oil is placed reactor, blast a small amount of water vapor.Feed water vapor in the chuck, stop heating after being warming up to 70-80 ℃, leave standstill, the water of bottom is drained.Continue to give then in the chuck and feed water vapor, slowly be warming up to 120 ℃, through 2h, oil does not stir, and the pasta black oil gas of emerging can stop.
2) pickling: treat oil cooling to normal temperature, under agitation add 98% sulfuric acid lentamente, sour consumption is the 5-7% (deciding according to the lubricating oil degree of fouling) of oil mass.After this continue to stir 0.5h, leave standstill then about 12h, vacuum filtration drains acid sludge.
3) alkali cleaning: the lubricating oil of pickling is changed in another reactor, be heated to 80 ℃, under agitation slowly add powdered sodium carbonate (accounting for quality of lubrication oil 5%), after stirring, leave standstill the 4h layering.Lower floor's fluid body and function plate and frame filter filters under 3MPa, and alkaline residue is drained.
4) decolouring: oil is warming up to 120-140 ℃, adds consumption at constant temperature with under stirring and be 6.0% atlapulgite of oil mass, add atlapulgite after, continue to stir 0.5h, leave standstill 24h at 110-120 ℃ of following constant temperature, filter under 3MPa with the plate and frame filter while hot, filtrate is product lubricating oil.
After testing, described rerefined oil product viscosity 7.5～8.5mPa/s (20 ℃); Flash-point: 220～230 ℃; Pour point :-8～-10 ℃; Mechanical impurity: do not have; Moisture: do not have, meet national standard, can sell.
Should be understood that, for those of ordinary skills, can be improved according to the above description or conversion, and all these improvement and conversion all should belong to the protection domain of claims of the present invention.
Claims (3)
1. a process for regeneration of waste lubricating oil comprises the steps:
1) dewaters: waste lubricating oil is placed reactor, blast water vapor, feed water vapor in the chuck, stop heating after being warming up to 70-80 ℃, leave standstill, the water of bottom is drained, continue then to give in the chuck to feed water vapor, slowly be warming up to more than 120 ℃, oil does not stir, and the pasta black oil gas of emerging can stop;
2) pickling: treat oil cooling to normal temperature, under agitation add the vitriol oil lentamente, the sulfuric acid consumption is the 5-7% of oil mass, continues to stir, and leaves standstill then, and vacuum filtration drains acid sludge;
3) alkali cleaning: the lubricating oil of pickling is changed in another reactor, be heated to 70-90 ℃, under agitation slowly add powdered sodium carbonate, the consumption of yellow soda ash accounts between the quality of lubrication oil 4-6%, after stirring, and standing demix, lower floor's fluid body filters, and alkaline residue is drained;
4) decolouring: oil is warming up to 120-140 ℃, adds consumption at constant temperature with under stirring and be 6.0% atlapulgite of oil mass, add atlapulgite after, continue to stir, leave standstill at 110-120 ℃ of following constant temperature, with filtering, filtrate is rerefined oil while hot.
2. process for regeneration of waste lubricating oil according to claim 1 is characterized in that the filtration described in step 3 and/or 4 is meant that employing plate and frame filter filters under 3MPa.
3. claim 1 or the resulting rerefined oil of 2 described process for regeneration of waste lubricating oil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2011102072617A CN102295979A (en) | 2011-07-25 | 2011-07-25 | Regenerating process of waste lubricating oil |
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| CN2011102072617A CN102295979A (en) | 2011-07-25 | 2011-07-25 | Regenerating process of waste lubricating oil |
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| CN102295979A true CN102295979A (en) | 2011-12-28 |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103756725A (en) * | 2013-12-02 | 2014-04-30 | 济南开发区星火科学技术研究院 | Method for preparing fuel oil by taking waste lubricating oil as raw material |
| CN104479730A (en) * | 2014-11-26 | 2015-04-01 | 上海大学 | Compound metal oxide decoloring agent for waste mineral oil and decoloring method thereof |
| CN104498174A (en) * | 2015-01-04 | 2015-04-08 | 吴江华威特种油有限公司 | Regeneration method of waste lubrication oil |
| CN106318593A (en) * | 2016-08-25 | 2017-01-11 | 刘雁 | Recycled lubricating oil regeneration technology |
| CN106609178A (en) * | 2015-10-26 | 2017-05-03 | 应城市新都化工有限责任公司 | Recovery process for lubricating oil |
| CN107287017A (en) * | 2017-07-28 | 2017-10-24 | 秦有为 | A kind of useless transformer oil regeneration method |
| CN108048199A (en) * | 2017-12-12 | 2018-05-18 | 成都育芽科技有限公司 | A kind of classification processing formula used oil retracting device |
| CN109323127A (en) * | 2017-07-31 | 2019-02-12 | 大宇造船海洋株式会社 | Discharge the method and fuel cut engine method of lubricating oil |
| CN109679759A (en) * | 2018-12-11 | 2019-04-26 | 国网吉林省电力有限公司电力科学研究院 | The regeneration treating method of waste steam turbine oil |
| CN111676062A (en) * | 2020-05-18 | 2020-09-18 | 江苏森茂能源发展有限公司 | Oil product front-end extraction and decoloration technology |
| CN113201365A (en) * | 2021-04-22 | 2021-08-03 | 孝感市光源电力集团有限责任公司 | Low-quality transformer oil recycling system and recycling method thereof |
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| CN101029275A (en) * | 2007-04-23 | 2007-09-05 | 肖青山 | Method and apparatus for reducing waste mobile-oil into product mobile oil |
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| CN101171325A (en) * | 2005-03-08 | 2008-04-30 | Ari技术有限公司 | Method for producing base lubricating oil from waste oil |
| CN101029275A (en) * | 2007-04-23 | 2007-09-05 | 肖青山 | Method and apparatus for reducing waste mobile-oil into product mobile oil |
Non-Patent Citations (1)
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103756725A (en) * | 2013-12-02 | 2014-04-30 | 济南开发区星火科学技术研究院 | Method for preparing fuel oil by taking waste lubricating oil as raw material |
| CN104479730A (en) * | 2014-11-26 | 2015-04-01 | 上海大学 | Compound metal oxide decoloring agent for waste mineral oil and decoloring method thereof |
| CN104498174A (en) * | 2015-01-04 | 2015-04-08 | 吴江华威特种油有限公司 | Regeneration method of waste lubrication oil |
| CN106609178A (en) * | 2015-10-26 | 2017-05-03 | 应城市新都化工有限责任公司 | Recovery process for lubricating oil |
| CN106318593A (en) * | 2016-08-25 | 2017-01-11 | 刘雁 | Recycled lubricating oil regeneration technology |
| CN107287017A (en) * | 2017-07-28 | 2017-10-24 | 秦有为 | A kind of useless transformer oil regeneration method |
| CN109323127A (en) * | 2017-07-31 | 2019-02-12 | 大宇造船海洋株式会社 | Discharge the method and fuel cut engine method of lubricating oil |
| CN108048199A (en) * | 2017-12-12 | 2018-05-18 | 成都育芽科技有限公司 | A kind of classification processing formula used oil retracting device |
| CN109679759A (en) * | 2018-12-11 | 2019-04-26 | 国网吉林省电力有限公司电力科学研究院 | The regeneration treating method of waste steam turbine oil |
| CN111676062A (en) * | 2020-05-18 | 2020-09-18 | 江苏森茂能源发展有限公司 | Oil product front-end extraction and decoloration technology |
| CN113201365A (en) * | 2021-04-22 | 2021-08-03 | 孝感市光源电力集团有限责任公司 | Low-quality transformer oil recycling system and recycling method thereof |
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Application publication date: 20111228 |