CN104498172A - Technological method for reduction regeneration of waste lubricating oil - Google Patents
Technological method for reduction regeneration of waste lubricating oil Download PDFInfo
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- CN104498172A CN104498172A CN201310657993.5A CN201310657993A CN104498172A CN 104498172 A CN104498172 A CN 104498172A CN 201310657993 A CN201310657993 A CN 201310657993A CN 104498172 A CN104498172 A CN 104498172A
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Abstract
The invention discloses a technological method for reduction regeneration of waste lubricating oil. The method includes: firstly conducting preliminary filtering on the waste lubricating oil, then adding sodium hydroxide, ethanol and hydrogen peroxide to conduct extraction and impurity removal, and then using white clay to perform refining, and finally carrying out filter pressing to obtain base oil, and adding additives into the base oil in accordance with requirements so as to obtain new oil for reuse. According to the invention, a reasonable technology is selected to carry out large-scale and specialized recycling of waste lubricating oil, a series of problems of difficult dehydration and impurity removal, difficult fractionation, high processing unit cost and the like existing in waste lubricating oil regeneration techniques can be solved, and the method also has the advantages of low investment cost and high profit. The base oil prepared by the invention can be used for preparation of new oil, and the obtained new oil has properties meeting the requirements.
Description
Technical field
The invention belongs to field of resource recovery technique, be specifically related to a kind of processing method of waste lubricating oil reducing/regenerating.
Background technology
Lubricating oil in use, cracking under the condition such as high temperature, high pressure, condensation; Go bad with air catalytic oxidation, under the catalyst action of some metal, oxidation is aggravated; The simultaneously decomposition of additive, destruction, lose the original effect of additive; And from the external world, be mixed into lightweight oil, dust and metal the impurity such as cut, thus make lubricating oil lose some performance original, its use properties is deteriorated, and can not meet service requirements, therefore tackles it and change, and the lubricating oil changed is called waste lubricating oil.
At present, along with developing rapidly of China's industry, required lubricating oil usage quantity increases fast, and the waste lubricating oil amount changed every year is also increasing.If these waste oil go as being discarded in environment, serious environmental pollution will be caused.Efforts To Develop utilization of the recycling of renewable resources improves the level of resources utilization, protection of the environment, one of important channel of building a resource-conserving society.
In fact, in the composition of waste lubricating oil, except the rotten beyond the region of objective existence containing 2%-10%, remaining 90% ~ 98% composition being all, can recycle completely.At present, the regeneration techniques of waste lubricating oil also exists a series of problems such as being difficult to dehydration removing impurities matter, being difficult to fractionation, process unit's expense is large.
Summary of the invention
The invention provides a kind of processing method of waste lubricating oil reducing/regenerating, the method technique is simple, less investment, can large-scale production be carried out.
In order to solve the problems of the technologies described above, the technical solution adopted in the present invention is:
A processing method for waste lubricating oil reducing/regenerating, comprises the following steps:
A. coarse filtration: tentatively filtered by waste lubricating oil, obtains waste lubricating oil colature;
B. extract: steps A is obtained waste lubricating oil colature and put into reactor, be heated to 55 DEG C ~ 65 DEG C, and in described reactor, add sodium hydroxide at such a temperature, stirring reaction 0.5h ~ 1h, and then add ethanol, hydrogen peroxide continuation stirring reaction 1h ~ 3h, finally while hot the product be obtained by reacting is extracted in slurry tank, sedimentation 12h ~ 24h, discard lower floor's extract, obtain oil base stock crude product; The mass ratio of wherein said waste lubricating oil colature and sodium hydroxide, ethanol, hydrogen peroxide is 6:1:3;
C. refine: the oil base stock crude product obtained by step B puts into reactor, add carclazyte and be heated to 150 DEG C ~ 160 DEG C and refine, refining 0.5h ~ 1.5h, obtains oil base stock fine work; Wherein, the add-on of described carclazyte and the mass ratio of described lubricating oil crude product are 1:10;
D. press filtration: the oil base stock fine work obtained by step C is cooled to 75 DEG C ~ 85 DEG C and puts into pressure filter press filtration, obtains base oil, puts into basic oil tank for subsequent use;
E. fresh oil allotment: reactor put into by the base oil obtained by step D, adds various additives on request and allocates, and prepares qualified fresh oil.
Owing to adopting technique scheme, the present invention has following beneficial effect:
1. the present invention selects rational technique, and the regeneration of waste lubricating oil is carried out in mass-producing, specialization, can solve that waste lubricant oil regeneration technically exists be difficult to dehydration removing impurities matter, be difficult to fractionation, a series of problem such as process unit's expense is large.
2. waste lubricating oil is made general 600 yuan ~ 800 yuan of the cost needs of one ton of fresh oil by the present invention, and if prepare the cost of one ton of lubricating oil the chances are 800 yuan ~ 1200 yuan according to general technique, and the selling price of the one ton of finished lube in market is at about 12000 yuan, as can be seen here, cost of investment of the present invention is few, and income is high.
3. base oil the present invention obtained is for the preparation of fresh oil, and the fresh oil performance obtained meets the requirements.
Embodiment
Below in conjunction with specific embodiment, the present invention is further described:
Embodiment 1
A processing method for waste lubricating oil reducing/regenerating, comprises the following steps:
A. coarse filtration: tentatively filtered by 1000Kg waste lubricating oil, obtains waste lubricating oil colature;
B. extract: steps A is obtained waste lubricating oil colature and put into reactor, be heated to 55 DEG C, and in described reactor, add 7Kg sodium hydroxide at such a temperature, stirring reaction 0.5h, and then add 1Kg ethanol, 2Kg hydrogen peroxide continuation stirring reaction 1h, finally while hot the product be obtained by reacting is extracted in slurry tank, sedimentation 18h, discard lower floor's extract, obtain oil base stock crude product;
C. refine: the oil base stock crude product obtained by step B puts into reactor, add 100Kg carclazyte and be heated to 150 DEG C and refine, refining 0.5h, obtains oil base stock fine work;
D. press filtration: the oil base stock fine work obtained by step C is cooled to 75 DEG C and puts into pressure filter press filtration, obtains base oil, puts into basic oil tank for subsequent use;
E. fresh oil allotment: reactor put into by the base oil obtained by step D, adds various additives on request and allocates, and prepares qualified fresh oil.
Embodiment 2
A processing method for waste lubricating oil reducing/regenerating, comprises the following steps:
A. coarse filtration: tentatively filtered by 1000Kg waste lubricating oil, obtains waste lubricating oil colature;
B. extract: steps A is obtained waste lubricating oil colature and put into reactor, be heated to 60 DEG C, and in described reactor, add 5Kg sodium hydroxide at such a temperature, stirring reaction 1h, and then add 2Kg ethanol, 3Kg hydrogen peroxide continuation stirring reaction 2h, finally while hot the product be obtained by reacting is extracted in slurry tank, sedimentation 18h, discard lower floor's extract, obtain oil base stock crude product;
C. refine: the oil base stock crude product obtained by step B puts into reactor, add 100Kg carclazyte and be heated to 155 DEG C and refine, refining 1h, obtains oil base stock fine work;
D. press filtration: the oil base stock fine work obtained by step C is cooled to 80 DEG C and puts into pressure filter press filtration, obtains base oil, puts into basic oil tank for subsequent use;
E. fresh oil allotment: reactor put into by the base oil obtained by step D, adds various additives on request and allocates, and prepares qualified fresh oil.
Embodiment 3
A processing method for waste lubricating oil reducing/regenerating, comprises the following steps:
A. coarse filtration: tentatively filtered by 1000Kg waste lubricating oil, obtains waste lubricating oil colature;
B. extract: steps A is obtained waste lubricating oil colature and put into reactor, be heated to 65 DEG C, and in described reactor, add 6Kg sodium hydroxide at such a temperature, stirring reaction 1h, and then add 1Kg ethanol, 3Kg hydrogen peroxide continuation stirring reaction 3h, finally while hot the product be obtained by reacting is extracted in slurry tank, sedimentation 24h, discard lower floor's extract, obtain oil base stock crude product;
C. refine: the oil base stock crude product obtained by step B puts into reactor, add 100Kg carclazyte and be heated to 160 DEG C and refine, refining 1.5h, obtains oil base stock fine work;
D. press filtration: the oil base stock fine work obtained by step C is cooled to 85 DEG C and puts into pressure filter press filtration, obtains base oil, puts into basic oil tank for subsequent use;
E. fresh oil allotment: reactor put into by the base oil obtained by step D, adds various additives on request and allocates, and prepares qualified fresh oil.
Be used for mixing rerefined oil by the base oil that embodiment 1 ~ embodiment 3 obtains, the lubricating oil obtained and CD50 ﹟ lubricating oil are carried out Performance Detection, and the result obtained is as table 1.
Table 1
As can be seen from the above Table 1, the base oil that embodiment 1 ~ embodiment 3 obtains is used for mixing rerefined oil, suitable with CD50 ﹟ lubricants performance.
Claims (1)
1. a processing method for waste lubricating oil reducing/regenerating, is characterized in that comprising the following steps:
A. coarse filtration: tentatively filtered by waste lubricating oil, obtains waste lubricating oil colature;
B. extract: steps A is obtained waste lubricating oil colature and put into reactor, be heated to 55 DEG C ~ 65 DEG C, and in described reactor, add sodium hydroxide at such a temperature, stirring reaction 0.5h ~ 1h, and then add ethanol, hydrogen peroxide continuation stirring reaction 1h ~ 3h, finally while hot the product be obtained by reacting is extracted in slurry tank, sedimentation 12h ~ 24h, discard lower floor's extract, obtain oil base stock crude product; The mass ratio of wherein said waste lubricating oil colature and sodium hydroxide, ethanol, hydrogen peroxide is 6:1:3;
C. refine: the oil base stock crude product obtained by step B puts into reactor, add carclazyte and be heated to 150 DEG C ~ 160 DEG C and refine, refining 0.5h ~ 1.5h, obtains oil base stock fine work; Wherein, the add-on of described carclazyte and the mass ratio of described lubricating oil crude product are 1:10;
D. press filtration: the oil base stock fine work obtained by step C is cooled to 75 DEG C ~ 85 DEG C and puts into pressure filter press filtration, obtains base oil, puts into basic oil tank for subsequent use;
E. fresh oil allotment: reactor put into by the base oil obtained by step D, adds various additives on request and allocates, and prepares qualified fresh oil.
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| CN201310657993.5A CN104498172A (en) | 2013-12-09 | 2013-12-09 | Technological method for reduction regeneration of waste lubricating oil |
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| CN201310657993.5A CN104498172A (en) | 2013-12-09 | 2013-12-09 | Technological method for reduction regeneration of waste lubricating oil |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107400555A (en) * | 2017-07-21 | 2017-11-28 | 浙江师范大学 | A kind of method using discarded machine oil production cutting oil and releasing agent |
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| CN1962837A (en) * | 2006-11-17 | 2007-05-16 | 淄博市华联矿业有限责任公司 | Process for regeneration of waste lubricating oil |
| CN101768505A (en) * | 2010-02-08 | 2010-07-07 | 长安大学 | Flocculated-adsorption regeneration treating method for waste engine oil |
| CN102167993A (en) * | 2010-11-25 | 2011-08-31 | 豆远奎 | Method for purifying waste engine oil containing phosphating film |
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2013
- 2013-12-09 CN CN201310657993.5A patent/CN104498172A/en active Pending
Patent Citations (3)
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| CN1962837A (en) * | 2006-11-17 | 2007-05-16 | 淄博市华联矿业有限责任公司 | Process for regeneration of waste lubricating oil |
| CN101768505A (en) * | 2010-02-08 | 2010-07-07 | 长安大学 | Flocculated-adsorption regeneration treating method for waste engine oil |
| CN102167993A (en) * | 2010-11-25 | 2011-08-31 | 豆远奎 | Method for purifying waste engine oil containing phosphating film |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107400555A (en) * | 2017-07-21 | 2017-11-28 | 浙江师范大学 | A kind of method using discarded machine oil production cutting oil and releasing agent |
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