CN107880998A - A kind of Processes and apparatus of used oil recycling - Google Patents
A kind of Processes and apparatus of used oil recycling Download PDFInfo
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- CN107880998A CN107880998A CN201711086486.5A CN201711086486A CN107880998A CN 107880998 A CN107880998 A CN 107880998A CN 201711086486 A CN201711086486 A CN 201711086486A CN 107880998 A CN107880998 A CN 107880998A
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- used oil
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- vacuum distillation
- heat exchanger
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M175/00—Working-up used lubricants to recover useful products ; Cleaning
- C10M175/0025—Working-up used lubricants to recover useful products ; Cleaning by thermal processes
- C10M175/0033—Working-up used lubricants to recover useful products ; Cleaning by thermal processes using distillation processes; devices therefor
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M175/00—Working-up used lubricants to recover useful products ; Cleaning
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M175/00—Working-up used lubricants to recover useful products ; Cleaning
- C10M175/0025—Working-up used lubricants to recover useful products ; Cleaning by thermal processes
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
- Lubricants (AREA)
Abstract
The invention discloses a kind of technique of used oil recycling, including atmospheric and vacuum distillation technique, the atmospheric and vacuum distillation technique includes electro-desalting, fore-running, air-distillation and vacuum distillation, the pre-treating technology being additionally included in before the atmospheric and vacuum distillation technique, comprises the following steps：S1, used oil are heated to 330 350 DEG C, obtain liquid mixture and admixture of gas；The liquid mixture that S2, S1 step obtain is cooled to 70 90 DEG C of filterings.The technique of the used oil recycling of the present invention, the moisture that solves the problems, such as to contain in existing atmospheric and vacuum distillation method used oil, impurity, iron filings, various additives generate alunite so as to block up stove, stifled tower caused by process at high operating temperatures, it is the cleaning that will carry out tower in 30 days or so to solve existing atmospheric and vacuum distillation method most long periods of time in order, expend substantial amounts of manpower financial capacity, will most importantly stop production problem, it is possible to achieve continuously run.
Description
Technical field
The invention belongs to the recycling field of lubricant, and in particular to a kind of Processes and apparatus of used oil recycling.
Background technology
Lubricating oil be various machineries must petroleum-type product, it with all kinds automobile, plant equipment so that machine
Tool lubricates, and reduces mechanical friction, makes mechanical high-speed, long-term operation, the liquid or semi-solid lubrication of protection machinery and workpiece
Agent, mainly play lubrication, supplement heat rejecter, antirust, cleaning, sealing and buffering etc., it is the soul of mechanical science and technology.If no
High quality, the lubricating oil for meeting mechanical requirements, just without the modern society of today.
Waste lubricating oil is exactly caused sump oil after various mechanical uses.Especially today's society car ownership is especially big, largely
Substantial amounts of sump oil is produced using lubricating oil.Contain various additives in waste oil, the iron filings to get off are ground in mechanical movement, high temperature produces
Carbon distribution, caused sludge etc. in operation.Due to excessive fuel consumption produce be social generalization, it is multi-point and wide-ranging, amount it is small the problems such as, cause back
Difficulty is received, causes the serious pollution to ecological environment.Waste lubricating oil is opaque into dark red, there is pungent smell.Waste lubricating oil
In containing 80% using material, and this 80% material is all by the exquisite advanced saturated rings material of hydrogenation technique.It is surplus
Lower 20% material is harmful waste material, including 3% moisture, 5% mechanical admixture, remaining 12% by greasy filth,
Cigarette ash and various additives etc. form.
Processing used oil has following several techniques at present, and its existing malady analysis is as follows：
(1) still distillation method：Still distillation method be heated using atmospheric kettle, Pintsch process, make used oil evaporation, split
Solution is into diesel oil.This method must not prohibite by country and be used because energy consumption is big, seriously polluted, processing efficiency is low.And useless
Machine oil is cracked into inherently a kind of waste of diesel oil, moreover autoclave tank service life is short, and production safety problem is difficult to ensure.
(2) thin film evaporator method：The exactly utilization of thin film evaporator method broadcasts mill evaporator and waste oil is processed.Utilize height
Temperature, negative pressure evaporate waste oil.This method treating capacity is small, and produced flue gas, solid waste can not reclaim, and waste oil cracking degree is big, institute's oil-producing
Quality is unstable.
(3) atmospheric and vacuum distillation method：The technique that lubricating oil is directly prepared using crude oil, as shown in Figure 1.This method can realize big rule
Mould produces, and it is recyclable to produce waste gas, and oil quality is stably.Disadvantage is to contain a large amount of additives in waste oil, including quiet dispersant,
Antioxidant, tackifier, pour-point depressant etc..Various additives generate alunite under high temperature action.This substance viscosity of alunite is big, swims in
In oil, be not readily separated, block up tower it is serious, the impurity such as greasy filth, iron filings, cigarette ash in plus waste oil, make atmospheric and vacuum distillation method block up stove,
Stifled tower is serious, and the cycle of operation is short.The most long periods of time in order of processing used oil is 30 days or so in atmospheric and vacuum distillation France, it is impossible to
Continuous production is realized, has a strong impact on production efficiency and economic benefit.
The content of the invention
The problem of existing for atmospheric and vacuum distillation method, specifically, for the moisture, impurity, iron filings, each contained in used oil
Kind additive generates alunite at high operating temperatures, so as to block up stove, stifled tower problem, the present inventor caused by process
Propose using secondary feeds, the technique once filtered, it is specific as follows：
A kind of technique of used oil recycling, including atmospheric and vacuum distillation technique, the atmospheric and vacuum distillation technique include
Electro-desalting, fore-running, air-distillation and vacuum distillation, the pre-treating technology being additionally included in before the atmospheric and vacuum distillation technique, institute
Pre-treating technology is stated to comprise the following steps：
S1, used oil are heated to 330-350 DEG C, obtain liquid mixture and admixture of gas；
The liquid mixture that S2, S1 step obtain is cooled to 70-90 DEG C of filtering.
Preferably, the S1 steps of the pre-treating technology, used oil are heated to 340 DEG C；In S2 steps, S1 steps obtain
Liquid mixture is cooled to 80 DEG C of filterings.
Preferably, in the S1 steps of the pre-treating technology, also one preheating and two heat-exchanging process.
It is further preferred that used oil is heated to 60 DEG C by the pre-heating process, by described two heat-exchanging process
It is heated to 280 DEG C.
Preferably, the recycling for the admixture of gas that further comprising the steps of S3, S1 step obtain.
It is further preferred that in S3 steps, the admixture of gas that S1 steps obtain takes off after heat exchanger in tower top fractionating tank
Isolated gasoline and diesel oil after water.
Preferably, the pre-treating technology comprises the following steps：
Used oil, to 60 DEG C, through crude oil pump to First Heat Exchanger, then to the second heat exchanger is heated to 280 in storage tank heat
DEG C, then 340 DEG C are heated to through vertical tubular heater, enter flash column, flash column bottom materials are pumped into the second heat exchange through bottom of towe
Device, 80 DEG C are cooled to through First Heat Exchanger, then water cooled device, filtered machine filter falls impurity, obtains feedstock oil；Flash column overhead materials
Matter is dehydrated through the 3rd heat exchanger to tower top fractionating tank, de- light component oil product.
The invention also discloses a kind of equipment of used oil recycling, including device and atmospheric and vacuum distillation, in addition to before
Processing equipment, the pre-processing device include：
Storage tank, crude oil pump, First Heat Exchanger, the second heat exchanger, vertical tubular heater, flash column, the second heat exchanger, water
Cooler, filter, finished pot and connecting pipe.
Preferably, the recycling equipment of admixture of gas is included, the recycling of the admixture of gas is set
It is standby to include the 3rd heat exchanger, tower top fractionating tank, carrying device and connecting pipe.
In certain embodiments, following technique is taken：
(1) waste oil stores up through tank, is heated up to 60 DEG C, sediment fraction moisture impurity；
(2) exchanged heat through heat exchanger to 280 DEG C；
(3) enter heating furnace and be heated up to 340 DEG C；
(4) flash column, tower top dehydration, de- light component oil product are entered；
(5) bottom of towe is pumped up, into heat exchanger, water cooler, being cooled to 80-90 DEG C；
(6) various impurity are filtered out through mechanical filtration machine, enters tank, it is stand-by.
The present inventor is had found used oil in normal pressure 330-350 in laboratory test, pilot scale and mill practices
DEG C or so, the oil product of used oil 80% does not gasify, or liquid, and various additives in used oil are (pour-point depressant, thickener, clear
Clean dose, anti-dispersant) then all it is being destroyed, alunite is generated, is floated in fluid oil.After oil product export cooling, by filter mistake
Most of impurity in oil product is filtered, becomes relatively pure feedstock oil.The present invention is based on this discovery, thereby accounts for borrowing
In atmospheric and vacuum distillation method recovery used oil during tower separating oil the problem of stifled tower.
Beneficial effect：
The technique of the used oil recycling of the present invention, solves what is contained in existing atmospheric and vacuum distillation method used oil
Moisture, impurity, iron filings, various additives generate alunite so as to block up stove caused by process, block up tower at high operating temperatures
Problem, it is the cleaning that will carry out tower in 30 days or so to solve existing atmospheric and vacuum distillation method most long periods of time in order, to be expended
Substantial amounts of manpower financial capacity, will most importantly stop production problem, it is possible to achieve continuously run..Secondary heat exchange is used in retracting device
Waste heat re-enter into heat exchanger participate in heating, so as to save the fuel oil of heating.Steam tower top evaporate gasoline and
Another revenue product of the mixed gas recycling of diesel component.
Brief description of the drawings
The technique that the existing crude oil atmospheric vacuum distillation methods of Fig. 1 prepare lubricating oil；
The process chart of Fig. 2 embodiment of the present invention 1；
The process chart of Fig. 3 embodiment of the present invention 2；
Embodiment
To describe technology contents, construction feature, institute's reached purpose and effect of the present invention in detail, embodiment is hereby enumerated below
It is explained in detail.The material and reagent, it is commercially available conventional material and reagent except Special Statement.
Embodiment 1
A kind of technique of used oil recycling, including atmospheric and vacuum distillation technique, the atmospheric and vacuum distillation technique include
Electro-desalting, fore-running, air-distillation and vacuum distillation, the pre-treating technology being additionally included in before the atmospheric and vacuum distillation technique, institute
Pre-treating technology is stated to comprise the following steps：As shown in Fig. 2 used oil is heated to 60 DEG C in storage tank 1, changed through crude oil pump 2 to the first
Hot device 3, then 280 DEG C are heated to the second heat exchanger 4, then 330-350 DEG C is heated to through vertical tubular heater 5, enter flash column
6, flash column bottom materials are sent into the second heat exchanger 4 through column bottoms pump 711, are cooled to through First Heat Exchanger 3, then water cooled device 712
70-90 DEG C, impurity is filtered by filter 713, obtains feedstock oil.
Preferably, 340 DEG C are heated to through vertical tubular heater 5, water cooled device 712 is cooled to 80 DEG C.
The technique of the used oil recycling of the present embodiment, used oil store up through tank, are heated up to 60 DEG C, sediment fraction water
Divide impurity；Then exchanged heat through heat exchanger to 280 DEG C；Enter heating furnace again and be heated up to 340 DEG C；Enter flash column, tower top dehydration, take off light group
Divide oil product；Bottom of towe is pumped up, into heat exchanger, water cooler, being cooled to 80-90 DEG C；Various impurity are filtered out through mechanical filtration machine,
Enter finished pot, it is stand-by.Atmospheric and vacuum distillation technique is carried out again, is obtained the light lubricating material of vacuum 1st side cut and is subtracted two, three, four lines weight lubricating material.
Whole lube stocks enter refined part and refined, and turn into various trade mark lubricating oil.
The technique of the used oil recycling of the present embodiment, solve and contain in existing atmospheric and vacuum distillation method used oil
Moisture, impurity, iron filings, various additives generate alunite at high operating temperatures so as to block up stove, stifled tower caused by process
The problem of, it is the cleaning that will carry out tower in 30 days or so to solve existing atmospheric and vacuum distillation method most long periods of time in order, to be consumed
Take substantial amounts of manpower financial capacity, will most importantly stop production problem, and used oil steams after the pretreatment of the present embodiment, then through Atmospheric vacuum
Evaporate, obtain lubricating oil, it is possible to achieve continuously run.
The technique of the used oil recycling of the present embodiment, heated up by the bottom materials and needs that need to cool useless
The exchanger heat of machine oil exchanges the recycling for realizing the energy, environmental protection and energy saving.Secondary heat exchange is used for the waste heat in retracting device
Re-enter into and heating is participated in heat exchanger, so as to save the fuel oil of heating.
Embodiment 2
It is with the difference of embodiment 1, as shown in figure 3, also including, flash column tower top material is through the 3rd heat exchanger
721 are dehydrated to tower top fractionating tank 722, de- light component oil product.
The technique of the used oil recycling of the present embodiment, in addition to the recycle device to overhead gas.Flash distillation
Tower top evaporates the mixed gas of gasoline and diesel component, after recovery, through cooling down, exporting, separating, accumulating and then sale.This is
Another revenue product of used oil recycling.
Embodiment 3
A kind of equipment of used oil recycling, including device and atmospheric and vacuum distillation, in addition to pre-processing device, before described
Processing equipment includes：Storage tank 1, crude oil pump 2, First Heat Exchanger 3, the second heat exchanger 4, vertical tubular heater 5, flash column 6,
Two heat exchangers 4, water cooler 712, filter 713, finished pot 714 and connecting pipe and valve.
Embodiment 4
It is with the difference of embodiment 3, in addition to, include the recycling equipment of admixture of gas, it is described
The recycling equipment of admixture of gas includes the 3rd heat exchanger 721, tower top fractionating tank 722, carrying device 723 and connecting tube
Road and valve.
In summary, only the preferred embodiments of the invention, does not limit protection scope of the present invention with this, all according to the present invention
The equivalent changes and modifications that the scope of the claims and description are made, it is all within the scope of patent of the present invention covers.
Claims (9)
1. a kind of technique of used oil recycling, including atmospheric and vacuum distillation technique, the atmospheric and vacuum distillation technique includes electricity
Desalination, fore-running, air-distillation and vacuum distillation, it is characterised in that the preceding place being additionally included in before the atmospheric and vacuum distillation technique
Science and engineering skill, the pre-treating technology comprise the following steps：
S 1, used oil is heated to 330-350 DEG C, obtains liquid mixture and admixture of gas；
The liquid mixture that S2, S1 step obtain is cooled to 70-90 DEG C of filtering.
2. the technique of used oil recycling as claimed in claim 1, it is characterised in that the S 1 of the pre-treating technology
Step, used oil are heated to 340 DEG C；In S2 steps, the liquid mixture that the steps of S 1 obtain is cooled to 80 DEG C of filterings.
3. the technique of used oil recycling as claimed in claim 1, it is characterised in that the S 1 of the pre-treating technology
In step, also one preheating and two heat-exchanging process.
4. the technique of used oil recycling as claimed in claim 3, it is characterised in that used oil passes through the preheating
Technique is heated to 60 DEG C, and 280 DEG C are heated to by described two heat-exchanging process.
5. the technique of the used oil recycling as described in claim 1-4 is any, it is characterised in that also including following step
Suddenly：
The recycling for the admixture of gas that S3, S1 step obtain.
6. the technique of used oil recycling as claimed in claim 5, it is characterised in that in S3 steps, S1 steps obtain
Admixture of gas after heat exchanger tower top fractionating tank dehydration after isolated gasoline and diesel oil.
7. the technique of used oil recycling as claimed in claim 1, it is characterised in that the pre-treating technology include with
Lower step：
Used oil is heated to 60 DEG C in storage tank (1), arrives First Heat Exchanger (3) through crude oil pump (2), then add to the second heat exchanger (4)
Heat is heated to 340 DEG C to 280 DEG C, then through vertical tubular heater (5), enters flash column (6), flash column bottom materials are through column bottoms pump
(711) the second heat exchanger (4) is sent into, 80 DEG C are cooled to through First Heat Exchanger (3), then water cooled device (712), by filter
(713) impurity is filtered, obtains feedstock oil；Flash column tower top material obtains through the 3rd heat exchanger (721) to tower top fractionating tank (722)
Dehydration, de- light component oil product.
8. a kind of equipment of used oil recycling, including device and atmospheric and vacuum distillation, it is characterised in that also set including pre-treatment
Standby, the pre-processing device includes：
Storage tank (1), crude oil pump (2), First Heat Exchanger (3), the second heat exchanger (4), vertical tubular heater (5), flash column
(6), the second heat exchanger (4), water cooler (712), filter (713), finished pot (714) and connecting pipe and valve.
9. the equipment of used oil recycling as claimed in claim 8, it is characterised in that returning also including admixture of gas
Receive and recycle equipment, the recycling equipment of the admixture of gas includes the 3rd heat exchanger (721), tower top fractionating tank
(722), carrying device (723) and connecting pipe and valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201711086486.5A CN107880998A (en) | 2017-11-07 | 2017-11-07 | A kind of Processes and apparatus of used oil recycling |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711086486.5A CN107880998A (en) | 2017-11-07 | 2017-11-07 | A kind of Processes and apparatus of used oil recycling |
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| CN201711086486.5A Pending CN107880998A (en) | 2017-11-07 | 2017-11-07 | A kind of Processes and apparatus of used oil recycling |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108611175A (en) * | 2018-05-22 | 2018-10-02 | 山东万友石化股份有限公司 | A kind of fully synthetic, the semi-synthetic and petrochemical industry based lubricating oil base oil resource comprehensive utilization process of classification |
| CN108998193A (en) * | 2018-07-16 | 2018-12-14 | 浙江大学 | A kind of regeneration method of waste lubricating oil |
| CN109749840A (en) * | 2019-01-24 | 2019-05-14 | 洛阳德正废弃资源再利用有限公司 | The technique of energy-saving type waste mineral oil refining Reclaimed Base Oil and diesel oil |
| CN110550798A (en) * | 2019-07-30 | 2019-12-10 | 烟台云沣生态环境产业发展股份有限公司 | offshore drilling platform hazardous waste treatment device and treatment process |
| CN110628455A (en) * | 2019-09-26 | 2019-12-31 | 南通市泓正再生资源有限公司 | Waste mineral oil regeneration recovery processing system |
| CN113046120A (en) * | 2021-03-04 | 2021-06-29 | 上海天汉环境资源有限公司 | Waste mineral oil treatment method |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108611175A (en) * | 2018-05-22 | 2018-10-02 | 山东万友石化股份有限公司 | A kind of fully synthetic, the semi-synthetic and petrochemical industry based lubricating oil base oil resource comprehensive utilization process of classification |
| CN108611175B (en) * | 2018-05-22 | 2021-11-16 | 山东翔龙佳业环境治理有限公司 | Process for comprehensively utilizing classified fully-synthetic, semi-synthetic and petrochemical-based lubricating oil base oil resources |
| CN108998193A (en) * | 2018-07-16 | 2018-12-14 | 浙江大学 | A kind of regeneration method of waste lubricating oil |
| CN109749840A (en) * | 2019-01-24 | 2019-05-14 | 洛阳德正废弃资源再利用有限公司 | The technique of energy-saving type waste mineral oil refining Reclaimed Base Oil and diesel oil |
| CN109749840B (en) * | 2019-01-24 | 2021-06-04 | 洛阳德正废弃资源再利用有限公司 | Energy-saving process for refining regenerated base oil and diesel oil from waste mineral oil |
| CN110550798A (en) * | 2019-07-30 | 2019-12-10 | 烟台云沣生态环境产业发展股份有限公司 | offshore drilling platform hazardous waste treatment device and treatment process |
| CN110628455A (en) * | 2019-09-26 | 2019-12-31 | 南通市泓正再生资源有限公司 | Waste mineral oil regeneration recovery processing system |
| CN113046120A (en) * | 2021-03-04 | 2021-06-29 | 上海天汉环境资源有限公司 | Waste mineral oil treatment method |
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Application publication date: 20180406 |