CN1176993A - Method for preparing thermal conductive oil by using waste oil as raw material - Google Patents
Method for preparing thermal conductive oil by using waste oil as raw material Download PDFInfo
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- CN1176993A CN1176993A CN 97105987 CN97105987A CN1176993A CN 1176993 A CN1176993 A CN 1176993A CN 97105987 CN97105987 CN 97105987 CN 97105987 A CN97105987 A CN 97105987A CN 1176993 A CN1176993 A CN 1176993A
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Abstract
The method of preparing heat conductive oil from waste oil is characterized by that the waste oil is acid cleaned with 1-13% of 92-105% concentrated sulfuric acid, then rise temp., add caustic lime and clay, distill, cool, filter press, rise temp., add high temp. antioxidant, anto-scorcher, and pour point reducer filter to obtain the product. This method can utilize the waste matter, save energy. The prepd. product is high in heat conductive efficiency, no pollution to environment.
Description
A kind of method of utilizing waste oil to prepare thermal conduction oil belongs to processing exhausted lubricant and utilizes the waste internal-combustion engine wet goods to prepare thermal conduction oil to reclaim useful product technical field, to be mainly used in.
Processing to waste oil in the prior art mainly contains three kinds of modes: (1) is to emit, and (2) are burnings, and (3) are the base oils of regeneration lubricating oil, and (1)～(2) not only waste waste oil, but also contaminate environment; (3) though the energy utilization of waste material, but utilize regeneration base oil preparation lubricating oil technical sophistication, the consumption size of additive is difficult to control, allots that the quality of lubrication oil that comes is not high to differ greatly with comparing with the quality of lubrication oil of finished product formulation of base oil, and not cheap on the price yet, therefore lack the market competitiveness.
The object of the present invention is to provide a kind ofly can solve existing problem in the prior art, can save a large amount of lubricating oil again, can also recycle waste oil simultaneously, avoid environmental pollution, save energy, thermostability is good, thermal conduction capability is strong to produce, the method for the thermal conduction oil of the low condensation point of high flash point.
Materialization characteristics according to the Chemical Composition and the thermal conduction oil of general common waste oil, at the subject matter that exists in the prior art, basic design of the present invention is: thoroughly reform on the existing basis that utilizes waste oil to prepare rerefined oil base oil technology, promptly except that reform border spare part and prescription, also to increase allotment again and filter two processing steps.
The method of utilizing waste oil to prepare thermal conduction oil of the present invention comprises: (1) pickling, (2) band soil distillation, (3) cooling and (4) filter-pressing process step, it is characterized in that its above-mentioned (1) pickling of this method is under 12～50 ℃ of conditions of temperature, by weight (down together) adding 1～13% concentration is 92～105% the vitriol oil, and stir with pressurized air and promptly to isolate sour oil in 15～45 minutes, when being warming up to 80 ℃, the sour oil that above-mentioned (1) is separated in above-mentioned (2) band soil distillation adds 0.5～5% unslaked lime and 5～15% carclazyte while stirring in this sour oil, and air distillation, when rising to 110～140 ℃, temperature suspends heating 8～12 minutes, when temperature rises to 200-300 ℃, suspend once more and be heated to row heating again after the light ends Ex-all, stop heating and be incubated continuously stirring 30～50 minutes when temperature rises to 300～340 ℃, oil extraction cooling then, after above-mentioned routine (4) press filtration, promptly make the regeneration base oil, feature of the present invention is that also this method also comprises (5) allotment, adds 1.2～2.6% high-temperature antioxidant when being about to above-mentioned (4) gained regeneration base oil and being warming up to 95-115 ℃ while stirring in it, 0.8～1.7% compound anticoking agent, 0.5 conventional two steps of filtration in restir 30～60 minutes and (6) after～1.8% the pour point depressant.
In above-mentioned (5) adaptation step when with oil temperature (being the temperature of thermal conduction oil conduction) below 150 ℃ the time, only need add 1～1.5% high-temperature antioxidant.
Above-mentioned (1) pickling, two steps of (2) band soil distillation can change (1) distillation, (2) pickling, (3) clay treatment or (1) distillation, (2) pickling and three steps of (3) neutralization respectively into.
Outstanding advantage of the present invention is: can utilization of waste material turn waste into wealth, find a new outlet for the lubricant oil regeneration base oil again, and its product heat transfer efficiency height, maximum operation (service) temperature can reach more than 300 ℃, energy-saving effect is remarkable, compare with steam boiler and can save the energy more than 50%, environmentally safe, can work under normal pressure, safe and reliable, the temperature range of choice is wide, can in 0～300 ℃, choose wantonly, thereby applied range and be suitable for the various occasions that all need liquid phase heat conduction source, the oil yield height, technology is fairly simple.
One of most preferred embodiment of the present invention is: get 100 kilograms in oil engine waste oil, 1% moisture and the bigger impurity of proportion were approximately removed in sedimentation at normal temperatures in 8 hours; Again 99 kilograms waste oil of remainder being added concentration is 5.2 kilograms of 98% the vitriol oils, and with pressurized air stir 30 minutes approximately 87.2 kilograms sour oil, these 87.2 kilograms of sour oils are heated to 80 ℃, add 1.75 kilograms unslaked lime and 8.8 kilograms carclazyte more while stirring, under normal pressure, distill, when being raised to 120 ℃, temperature suspends heating 10 minutes, when temperature rises to 250 ℃, suspend once more and be heated to row heating again after the light ends Ex-all, when rising to 320 ℃, temperature stops heating and insulation continuously stirring 45 minutes, oil extraction cooling then, promptly get 74.1 kilograms of the base oils of regenerating through conventional press filtration, add 1.11 kilograms of high-temperature antioxidants while stirring after again these 74.1 kilograms regeneration base oils being heated to 90 ℃, 0.6 the compound anticoking agent of kilogram, 0.37 the pour point depressant of kilogram, stir after 40 minutes and filter, get about 75 kilograms of finished product thermal conduction oil at last with conventional method.
Change as present embodiment:
1, the consumption of all technology final conditions and interpolation component all can suitably change in the scope of permission;
2, for the sedimentation of then can heating of full-bodied waste oil;
3, technical process can be changed into sedimentation-pickling-distillation-clay treatment-press filtration-allotment-filtration only haggling under man-hour and the condition of cost; Perhaps sedimentation-distillation-pickling-clay treatment-press filtration-allotment-filtration; Perhaps sedimentation-distillation-pickling-neutralization-allotment-filtration.
4, can not heat in the allotment, but churning time to extend;
5, to impure less demanding can the filtration, but to impure twice of extra high also continuous filtration that require;
6, passing under the situation of fuel consumption, stopping to heat for twice when still-process heats up 120 ℃ and 250 ℃ can write off, promptly can heat continuously.
Claims (3)
1, a kind of method of utilizing waste oil to prepare thermal conduction oil, comprise: (1) pickling, (2) band soil distillation, (3) cooling and (4) filter-pressing process step, it is characterized in that its above-mentioned (1) pickling of this method is under 12～50 ℃ of conditions of temperature, add 1～13% concentration by weight and be 92～105% the vitriol oil, and stir with pressurized air and promptly to isolate sour oil in 15～45 minutes, when being warming up to 80 ℃, the sour oil that above-mentioned (1) is separated in above-mentioned (2) band soil distillation adds 0.5～5% unslaked lime and 5～15% carclazyte while stirring in this sour oil, and air distillation, when rising to 110～140 ℃, temperature suspends heating 8～12 minutes, when temperature rises to 200～300 ℃, suspend once more and be heated to row heating again after the light ends Ex-all, stop heating and be incubated continuously stirring 30～50 minutes when temperature rises to 300～340 ℃, oil extraction cooling then, after above-mentioned routine (4) press filtration, promptly make the regeneration base oil, feature of the present invention is that also this method also comprises (5) allotment, adds 1.2～2.6% high-temperature antioxidant when being about to above-mentioned (4) gained regeneration base oil and being warming up to 95～115 ℃ while stirring in it, 0.8～1.7% compound anticoking agent, 0.5 conventional two steps of filtration in restir 30～60 minutes and (6) after～1.8% the pour point depressant.
2, the method for utilizing waste oil to prepare thermal conduction oil according to claim 1 it is characterized in that in above-mentioned (5) adaptation step when with oil temperature below 150 ℃ the time, only need add 1～1.5% high-temperature antioxidant.
3, the method for utilizing waste oil to prepare thermal conduction oil according to claim 1 is characterized in that above-mentioned (1) pickling, two steps of (2) band soil distillation can change (1) distillation, (2) pickling, (3) clay treatment or (1) distillation, (2) pickling and three steps of (3) neutralization respectively into.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97105987 CN1176993A (en) | 1997-07-21 | 1997-07-21 | Method for preparing thermal conductive oil by using waste oil as raw material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97105987 CN1176993A (en) | 1997-07-21 | 1997-07-21 | Method for preparing thermal conductive oil by using waste oil as raw material |
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| Publication Number | Publication Date |
|---|---|
| CN1176993A true CN1176993A (en) | 1998-03-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97105987 Pending CN1176993A (en) | 1997-07-21 | 1997-07-21 | Method for preparing thermal conductive oil by using waste oil as raw material |
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| CN (1) | CN1176993A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104726182A (en) * | 2015-01-29 | 2015-06-24 | 新疆福克油品股份有限公司 | Heat conduction fluid composition produced by using recovered oil |
| CN110088257A (en) * | 2016-12-20 | 2019-08-02 | 阿法拉伐股份有限公司 | Pollutant is from the separation in liquid mixture |
| CN110317670A (en) * | 2019-03-19 | 2019-10-11 | 重庆众瑞晟科技有限责任公司 | A kind of anti-coking agent and preparation method thereof applied in the distillation process that waste lubricant oil regeneration utilizes |
-
1997
- 1997-07-21 CN CN 97105987 patent/CN1176993A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104726182A (en) * | 2015-01-29 | 2015-06-24 | 新疆福克油品股份有限公司 | Heat conduction fluid composition produced by using recovered oil |
| CN104726182B (en) * | 2015-01-29 | 2017-07-04 | 新疆福克油品股份有限公司 | A kind of heat transfer oil composition of utilization reclaimed oil production |
| CN110088257A (en) * | 2016-12-20 | 2019-08-02 | 阿法拉伐股份有限公司 | Pollutant is from the separation in liquid mixture |
| US11104863B2 (en) | 2016-12-20 | 2021-08-31 | Alfa Laval Corporate Ab | Separation of contaminants from a liquid mixture |
| CN110317670A (en) * | 2019-03-19 | 2019-10-11 | 重庆众瑞晟科技有限责任公司 | A kind of anti-coking agent and preparation method thereof applied in the distillation process that waste lubricant oil regeneration utilizes |
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