CN105316099B - A kind of method of regenerating waste oil base oil - Google Patents
A kind of method of regenerating waste oil base oil Download PDFInfo
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- CN105316099B CN105316099B CN201510883850.5A CN201510883850A CN105316099B CN 105316099 B CN105316099 B CN 105316099B CN 201510883850 A CN201510883850 A CN 201510883850A CN 105316099 B CN105316099 B CN 105316099B
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Abstract
The present invention relates to a kind of methods of regenerating waste oil base oil, including following steps：Used oil is placed in settling tank, room temperature natural subsidence takes supernatant liquor；Extraction flocculation neutralizer is added into obtained supernatant liquor, after stirring, is cooled to room temperature, stands, obtains extraction and neutralizes the mixed liquor after flocculation；Mixed liquor is filtered, the heating distillation of gained filtrate, collects 60 81 DEG C of extractant fraction and be used to recycle, residue vacuum distillation obtains base oil, the mass yield of base oil accounts for the 85 89% of supernatant quality.The present invention can remove the non-base oil components such as solid impurity, dissolvable oxides, organic acid, the colloid in used oil well, obtain reclaimed oil.This method equipment investment is few, and method is simple, and extractant is reusable, reduces three-waste pollution, has good market prospects.
Description
Technical field
The present invention relates to regenerating waste oil basis oil treatment process caused by a kind of jaw and hammer mill.Specifically
It is related to a kind of utilize and commonly uses organic solvent extraction, flocculation technique by the impurity removing in used oil, to obtain Reclaimed Base Oil
Method.
Background technology
Machine oil is used in mechanically to reduce the fluid lubricant of friction, protection machinery and workpiece.Machine oil is by base oil
It is formed with additive two parts.The main component of base oil is the alkane of the C20-C40 containing carbon number, and aromatic hydrocarbons and nitrogenous, sulphur, oxygen have
Machine object etc., used oil refer to machine oil during various machineries, equipment use, since oil product is decomposed, by high-temperature oxydation in air
The metal fragment etc. that the pollution of dust, the friction of carbon distribution, machinery generate, prevents its physicochemical property to be changed from meeting requirement
Under machine oil.For crusher due to generating a large amount of dust when work, the working environment temperature difference is big, generally uses will replace within 3 months, often
Year generates a large amount of used oil and is bound to cause serious pollution if dealing with improperly or arbitrarily abandoning.Used oil is containing very at high proportion
Base oil component, can by reclaimer appropriate, remove waste lubricating oil in various oxidation products, water, asphalitine, glue
The substances such as matter, acid, carbon granule, metal filings and additive.It extracts base oil therein to be continuing with, has both reduced environment dirt
Dye, can also bring economic benefit.
Numerous studies have been carried out to regenerating waste oil processing both at home and abroad.The regeneration treatment of domestic used oil at present is mainly adopted
With sedimentation-pickling-carclazyte technique；Sedimentation-distillation-carclazyte technique etc., above-mentioned technique, which all exists, generates lacking for a large amount of solid slags
Point, causes serious pollution to the environment.American-European countries mainly takes distillation or hydroprocessing technique, and this method technological requirement is high, and equipment is complicated.
How to select simple for process, production cost is low, and the processing method that environmental pollution is few, has stronger Practical significance.
Invention content
The object of the present invention is to provide a kind of method of regenerating waste oil base oil caused by jaw and hammer mill,
With simple for process, high income, the small advantage of environmental pollution.The purpose of the present invention is achieved through the following technical solutions：
A kind of method of regenerating waste oil base oil, including following steps：
(1) it settles
Used oil is placed in settling tank, room temperature natural subsidence one week takes supernatant liquor；
(2) extraction-neutralization-flocculation
Extraction-flocculation-neutralizer is added in the supernatant liquor obtained into step (1), is stirred at being 30-40 DEG C in temperature
After 30-50 minutes, it is cooled to room temperature, 24 hours is stood, obtains the mixed liquor after extraction-neutralization-flocculation；
(3) mixed liquor for obtaining (2) filters, and gained filtrate is the mixture containing extractant and base oil component；
(4) filtrate for obtaining (3) carries out heating distillation, first collects 60-81 DEG C of extractant fraction, and residue decompression is steamed
Evaporate, collect vacuum degree be 8-10KPa, the fraction that temperature is 155-250 DEG C, obtain base oil, the mass yield of base oil accounts for
The 85-89% of clear liquid quality.
The used oil is the waste oil that jaw crusher and hammer mill generate, is made of base oil and impurity；It is described
Base oil is made of alkane, aromatic hydrocarbons and nitrogenous, sulphur, oxygen organic, and wherein the carbon atom number in alkane molecule is 20-40；It is described
Impurity, by small molecule hydro carbons, oxide, acidic materials, dust, metal friction generate clast form, wherein small molecule hydro carbons,
Oxide and acidic materials be organic matter in machine oil due in hot environment using the product for causing carbochain oxidation scission.
The supernatant liquor is made of, wherein small molecule hydrocarbon base oil and small molecule hydro carbons, oxide and acidic materials
Class, oxide and acidic materials be organic matter in machine oil due in hot environment using the product for causing carbochain oxidation scission.
Described 60-81 DEG C of extractant fraction is the mixture of hexamethylene and isopropanol.
Extraction-flocculation-the neutralizer, the mass ratio 3-5 of addition and used oil:1.
Extraction-flocculation-the neutralizer is the mixture of the aqueous solution of hexamethylene, isopropanol and alkali；The aqueous solution of alkali accounts for
The mass fraction of mixture is 10%；The aqueous solution of alkali is the aqueous solution of potassium hydroxide or sodium hydroxide, potassium hydroxide or hydrogen-oxygen
The mass fraction for changing sodium is 15%；The mass ratio of hexamethylene and isopropanol is 3:1.
The mass ratio of the aqueous solution of the potassium hydroxide or sodium hydroxide, addition and used oil is 5-8:1.
Described 60-81 DEG C of extractant fraction recycles.
The beneficial effects of the invention are as follows：Regeneration technology is simple, and equipment investment is few, easy and safe to operate, basic oil recovery rate
Height, reusable after extractant recovery processing, environmental pollution is few, and cost recovery is relatively low, has certain economy and society
Benefit.
Specific implementation mode
It further illustrates the present invention With reference to embodiment：
Embodiment 1
The used oil of 16kg is placed in settling tank, room temperature natural subsidence one week takes supernatant liquor；Obtained upper layer is clear
Extraction-flocculation-neutralizer 48-80kg is added in liquid, after being stirred 30 minutes at being 30-40 DEG C in temperature, is cooled to room temperature, stands
24 hours, obtain the mixed liquor after extraction-neutralization-flocculation；By the mixed liquor filtering after obtained extraction-neutralization-flocculation, gained
Filtrate is the mixture containing extractant and base oil component；Filtrate is subjected to heating distillation, 60-81 DEG C of extractant is first collected and evaporates
Divide, i.e. the mixture of hexamethylene and isopropanol, for recycling；Residue be evaporated under reduced pressure, collections vacuum degree be 8-10Kpa,
The fraction that temperature is 155-250 DEG C, obtains base oil, the mass yield of base oil accounts for the 85% of supernatant quality；
Extraction-flocculation-the neutralizer, is the mixture of the aqueous solution of hexamethylene, isopropanol and alkali；Its cyclohexane and
The gross mass of isopropanol is 43.2kg, and the aqueous solution of hexamethylene 32.4kg, isopropanol 10.8kg, alkali are the water of potassium hydroxide
The mass fraction of solution, quality 4.8kg, potassium hydroxide is 15%；
Embodiment 2
The used oil of 16kg is placed in settling tank, room temperature natural subsidence one week takes supernatant liquor；Obtained upper layer is clear
Extraction-flocculation-neutralizer 80kg is added in liquid, after being stirred 50 minutes at being 30-40 DEG C in temperature, is cooled to room temperature, stands 24
Hour, obtain the mixed liquor after extraction-neutralization-flocculation；By the mixed liquor filtering after obtained extraction-neutralization-flocculation, gained filter
Liquid is the mixture containing extractant and base oil component；Filtrate is subjected to heating distillation, 60-81 DEG C of extractant is first collected and evaporates
Point, i.e. the mixture of hexamethylene and isopropanol, for recycling, residue vacuum distillation, collections vacuum degree be 8-10Kpa,
The fraction that temperature is 155-250 DEG C, obtains base oil, the mass yield of base oil accounts for the 89% of supernatant quality；
Extraction-flocculation-the neutralizer, is the mixture of the aqueous solution of hexamethylene, isopropanol and alkali；Its cyclohexane and
The gross mass of isopropanol is 72kg, hexamethylene 54kg, isopropanol 13.5kg, and the aqueous solution of alkali is the water-soluble of sodium hydroxide
The mass fraction of liquid, quality 8.0kg, sodium hydroxide is 15%；
Embodiment 3
The used oil of 16kg is placed in settling tank, room temperature natural subsidence one week takes supernatant liquor；Obtained upper layer is clear
Extraction-flocculation-neutralizer 64kg is added in liquid, is stirred after forty minutes at being 30-40 DEG C in temperature, is cooled to room temperature, stands 24
Hour, obtain the mixed liquor after extraction-neutralization-flocculation；By the mixed liquor filtering after obtained extraction-neutralization-flocculation, gained filter
Liquid is the mixture containing extractant and base oil component；Filtrate is subjected to heating distillation, 60-81 DEG C of extractant is first collected and evaporates
Point, i.e. the mixture of hexamethylene and isopropanol, for recycling, residue vacuum distillation, collections vacuum degree be 8-10Kpa,
The fraction that temperature is 155-250 DEG C, obtains base oil, the mass yield of base oil accounts for the 87% of supernatant quality；
Extraction-flocculation-the neutralizer, is the mixture of the aqueous solution of hexamethylene, isopropanol and alkali；Its cyclohexane and
The gross mass of isopropanol is 57.6kg, hexamethylene 43.2kg, isopropanol 14.4kg, and the aqueous solution of alkali is potassium hydroxide or hydrogen
The mass fraction of the aqueous solution of sodium oxide molybdena, quality 6.4kg, potassium hydroxide or sodium hydroxide is 15%.
Used oil described in embodiment 1-3 is the waste oil that jaw crusher and hammer mill generate, by base oil and impurity
Composition；The base oil is made of alkane, aromatic hydrocarbons and nitrogenous, sulphur, oxygen organic, and wherein the carbon atom number in alkane molecule is
20-40；The impurity, the clast generated by small molecule hydro carbons, oxide, acidic materials, dust, metal friction form, wherein
Small molecule hydro carbons, oxide and acidic materials be organic matter in machine oil due in hot environment using causing carbochain oxidation scission
Product；The supernatant liquor is made of base oil and small molecule hydro carbons, oxide and acidic materials, wherein small molecule hydro carbons,
Oxide and acidic materials be organic matter in machine oil due in hot environment using the product for causing carbochain oxidation scission.
Embodiment 4 is detected the regenerated base oils of embodiment 1-3, as a result as follows：
Kinematic viscosity is 54.21-57.84mm2/ s, acid value are 0.022-0.026mg KOH/g, solidification point -17 to -19
℃.Color is faint yellow.
It was found from above-mentioned testing result：The regenerated base oil of preparation method using the present invention, yield are up to 85% or more,
Coloration is good, acid value is low, and environmental pollution is few, and there is apparent economy and environmental benefit, the present invention can solve used oil
Problem difficult for regeneration.
Claims (4)
1. a kind of method of regenerating waste oil base oil, which is characterized in that including following steps：
(1) it settles
Used oil is placed in settling tank, room temperature natural subsidence one week takes supernatant liquor；
(2) extraction-neutralization-flocculation
Extraction-flocculation-neutralizer is added in the supernatant liquor obtained into step (1), 30- is stirred at being 30-40 DEG C in temperature
After 50 minutes, it is cooled to room temperature, 24 hours is stood, obtains the mixed liquor after extraction-neutralization-flocculation；
(3) mixed liquor for obtaining (2) filters, and gained filtrate is the mixture containing extractant and base oil component；
(4) filtrate for obtaining (3) carries out heating distillation, first collects 60-81 DEG C of extractant fraction, and residue is evaporated under reduced pressure,
Collect vacuum degree be 8-10KPa, the fraction that temperature is 155-250 DEG C, obtain base oil, the mass yield of base oil accounts for supernatant
The 85-89% of liquid quality；
The used oil is the waste oil that jaw crusher and hammer mill generate, is made of base oil and impurity；The basis
Oil is made of alkane, aromatic hydrocarbons and nitrogenous, sulphur, oxygen organic, and wherein the carbon atom number in alkane molecule is 20-40；It is described miscellaneous
Matter, the clast generated by small molecule hydro carbons, oxide, acidic materials, dust, metal friction form, wherein small molecule hydro carbons, oxygen
Compound and acidic materials be organic matter in machine oil due in hot environment using the product for causing carbochain oxidation scission；
The supernatant liquor is made of, wherein small molecule hydro carbons, oxygen base oil and small molecule hydro carbons, oxide and acidic materials
Compound and acidic materials be organic matter in machine oil due in hot environment using the product for causing carbochain oxidation scission；
Extraction-flocculation-the neutralizer is the mixture of the aqueous solution of hexamethylene, isopropanol and alkali；
Described 60-81 DEG C of fraction is the mixture of hexamethylene and isopropanol.
2. a kind of method of regenerating waste oil base oil according to claim 1, which is characterized in that the extraction-flocculation-
The addition of neutralizer and the mass ratio 3-5 of used oil:1, Reclaimed Base Oil obtained, kinematic viscosity 57.84mm2/ s, acid value
For 0.022-0.026mgKOH/g, solidification point is -17 to -19 DEG C, and the extractant of recycling can be recycled.
3. a kind of method of regenerating waste oil base oil according to claim 1, which is characterized in that the hexamethylene, different
The mixture of the aqueous solution of propyl alcohol and alkali, it is 10% that the aqueous solution of alkali, which accounts for the mass fraction of mixture,；The aqueous solution of alkali is hydrogen-oxygen
The mass fraction of the aqueous solution of change potassium or sodium hydroxide, potassium hydroxide or sodium hydroxide is 15%.
4. a kind of method of regenerating waste oil base oil according to claim 1, which is characterized in that the hexamethylene and different
The mass ratio of propyl alcohol is 3:1.
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105778990A (en) * | 2016-04-21 | 2016-07-20 | 廖莱 | Process for refining clean fuel and lubricant base oil based on waste engine oil |
| CN106336939A (en) * | 2016-08-29 | 2017-01-18 | 济南亿诺再生资源有限公司 | Refining technique of base oil regenerated from used lubrication oil |
| CN107312612A (en) * | 2017-07-19 | 2017-11-03 | 沈阳永润石油制品有限公司 | A kind of processing method of used oil recycling |
| CN108085121A (en) * | 2017-12-22 | 2018-05-29 | 常州菲纳斯能源科技有限公司 | Waste lubricant oil regeneration and the processing method for recycling aromatic hydrocarbons |
| KR102085351B1 (en) * | 2019-07-08 | 2020-03-05 | 이종호 | Method for Producing Heating Oils Using Waste Oils |
| CN113004941B (en) * | 2021-04-01 | 2022-10-11 | 厦门市汉臻能源科技有限公司 | Industrial purification method of waste engine oil |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102660375A (en) * | 2012-05-09 | 2012-09-12 | 重庆现代石油（集团）有限公司 | Method for regenerating waste lubricating oil |
| 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 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102660375A (en) * | 2012-05-09 | 2012-09-12 | 重庆现代石油（集团）有限公司 | Method for regenerating waste lubricating oil |
| 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 |
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