CN109797001A - A kind of used oil refinement is the method for diesel oil - Google Patents
A kind of used oil refinement is the method for diesel oil Download PDFInfo
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- CN109797001A CN109797001A CN201910101330.2A CN201910101330A CN109797001A CN 109797001 A CN109797001 A CN 109797001A CN 201910101330 A CN201910101330 A CN 201910101330A CN 109797001 A CN109797001 A CN 109797001A
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- oil
- used oil
- reaction kettle
- transported
- refining device
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- 239000010913 used oil Substances 0.000 title claims abstract description 152
- 239000002283 diesel fuel Substances 0.000 title claims abstract description 48
- 238000000034 method Methods 0.000 title claims abstract description 38
- 238000006243 chemical reaction Methods 0.000 claims abstract description 95
- 238000007670 refining Methods 0.000 claims abstract description 85
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 56
- 238000004821 distillation Methods 0.000 claims abstract description 12
- 239000007789 gas Substances 0.000 claims description 41
- 238000004140 cleaning Methods 0.000 claims description 27
- 238000002156 mixing Methods 0.000 claims description 26
- 238000003860 storage Methods 0.000 claims description 20
- 238000010438 heat treatment Methods 0.000 claims description 18
- 230000008569 process Effects 0.000 claims description 16
- 238000009826 distribution Methods 0.000 claims description 11
- 230000007935 neutral effect Effects 0.000 claims description 11
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims description 9
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 9
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 9
- 239000012535 impurity Substances 0.000 claims description 9
- 239000003054 catalyst Substances 0.000 claims description 8
- 238000003756 stirring Methods 0.000 claims description 7
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 6
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 6
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 6
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims description 6
- 239000007788 liquid Substances 0.000 claims description 6
- 239000013049 sediment Substances 0.000 claims description 6
- 239000003463 adsorbent Substances 0.000 claims description 4
- 239000003795 chemical substances by application Substances 0.000 claims description 4
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 claims description 3
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims description 3
- 229910021536 Zeolite Inorganic materials 0.000 claims description 3
- 239000000908 ammonium hydroxide Substances 0.000 claims description 3
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 claims description 3
- KTWOOEGAPBSYNW-UHFFFAOYSA-N ferrocene Chemical compound [Fe+2].C=1C=C[CH-]C=1.C=1C=C[CH-]C=1 KTWOOEGAPBSYNW-UHFFFAOYSA-N 0.000 claims description 3
- 239000011790 ferrous sulphate Substances 0.000 claims description 3
- 235000003891 ferrous sulphate Nutrition 0.000 claims description 3
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 claims description 3
- 229910000359 iron(II) sulfate Inorganic materials 0.000 claims description 3
- 239000002808 molecular sieve Substances 0.000 claims description 3
- 238000007781 pre-processing Methods 0.000 claims description 3
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 claims description 3
- 229910000029 sodium carbonate Inorganic materials 0.000 claims description 3
- 239000010457 zeolite Substances 0.000 claims description 3
- 239000011787 zinc oxide Substances 0.000 claims description 3
- -1 carclazyte Chemical compound 0.000 claims description 2
- 239000006210 lotion Substances 0.000 claims description 2
- 238000005406 washing Methods 0.000 claims description 2
- 238000010924 continuous production Methods 0.000 abstract description 3
- 238000011084 recovery Methods 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 103
- 239000000047 product Substances 0.000 description 17
- 239000003245 coal Substances 0.000 description 12
- 238000004519 manufacturing process Methods 0.000 description 10
- 238000001816 cooling Methods 0.000 description 9
- 230000000694 effects Effects 0.000 description 8
- 239000000126 substance Substances 0.000 description 8
- 230000003197 catalytic effect Effects 0.000 description 7
- 239000002699 waste material Substances 0.000 description 7
- 238000009835 boiling Methods 0.000 description 6
- 238000002485 combustion reaction Methods 0.000 description 6
- 239000000446 fuel Substances 0.000 description 6
- 239000010721 machine oil Substances 0.000 description 6
- 239000000654 additive Substances 0.000 description 5
- 238000009833 condensation Methods 0.000 description 5
- 230000005494 condensation Effects 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 230000008859 change Effects 0.000 description 4
- 238000007373 indentation Methods 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 3
- 238000001704 evaporation Methods 0.000 description 3
- 230000008020 evaporation Effects 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000002378 acidificating effect Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 239000003610 charcoal Substances 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000005485 electric heating Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000009776 industrial production Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 239000000112 cooling gas Substances 0.000 description 1
- 238000012279 drainage procedure Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000002269 spontaneous effect Effects 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 239000002562 thickening agent Substances 0.000 description 1
- 238000013022 venting Methods 0.000 description 1
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- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
Abstract
The embodiment of the invention discloses a kind of used oil to refine the method for diesel oil, it is related to used oil recovery processing technical field, the used oil for treating refinement is pre-processed, pretreated used oil is transported in reaction kettle, used oil after distillation refinement, which is transported in condenser, to liquefy, to obtain gas-oil, water and the gas not being liquefied, gas-oil, water and the gas not being liquefied are transported in oil water separator and are separated, open supercharger, make the pressure normal pressure in pre- refining device, open vacuum machine, make the power negative pressure of reaction kettle internal pressure, open the communicating valve between pre- refining device and reaction kettle, so that the used oil in refining device is transported in reaction kettle in advance, close the communicating valve between pre- refining device and reaction kettle, close supercharger, open row pressure mouth, make the normal pressure normal pressure in pre- refining device, close vacuum machine, open row pressure mouth , make the negative pressure normal pressure in reaction kettle to be refined next time, realize continuous production by changing the pressure in pre- refining device and reaction kettle.
Description
Technical field
The present invention relates to used oil to be recycled technical field, and in particular to a kind of used oil refinement is the method for diesel oil.
Background technique
The method of refining diesel oil is that used oil is added in reaction kettle in the prior art, and heating reaction kettle distills useless machine
Oil becomes gas and enters condenser liquefaction, enters the separation that oil water separator carries out tail gas and water, gas-oil later, and tail gas enters
It is discharged into reactor bottom after tail gas recycle device and serves as fuel use, water is discharged from bottom, and gas-oil flows into treater, filters it
It is afterwards finished diesel fuel.
But there are the following problems during using above equipment progress used oil refinement: the first, reaction kettle is in height
Temperature and with that can not carry out oiling supplement in the case where pressure, is unable to continuous production；The second, the bavin produced using above equipment
Oil quality is poor, and viscosity index improver and tackifier contained in used oil are all to be made of rubber product, give up in a kettle
These substances can enter condensation as used oil is distilled off together by high temperature evaporation simultaneously during machine oil refines distillation
It is dissolved into gas-oil after device liquefaction, it is middle because easily blocking engine containing colloid and other harmful substances in use
Atomizer and formation carbon distribution, can damage engine；Third, the mode of reaction kettle heating are with coal come heating by ignition, with coal or its
He is difficult to control combustible to heat up to the temperature range in reaction kettle, will affect entire refinement process, to the quality of product
It can be influenced, and unclean with coal heating, air is also easy to be contaminated, not environmentally；4th, condenser is single water
Circulating cooling, if long working, water temperature, which can heat up, just no longer has good cooling effect, so that making can in condenser
Cooling gas is not liquefied or the state of oil gas, and the oil gas not being liquefied later also burns together with tail gas, causes
Waste.
Summary of the invention
The embodiment of the present invention be designed to provide a kind of used oil refine be diesel oil method, to solve the prior art
Middle refining equipment can not continuous production and product oil oil yield low quality difference problem.
To achieve the above object, the embodiment of the present invention a kind of used oil be provided refine be diesel oil method, step S1 treats
The used oil of refinement is pre-processed；
Step S2, pretreated used oil, which is transported in reaction kettle, carries out distillation refinement；
Step S3, the used oil after distillation is refined are transported in condenser and liquefy, with obtain gas-oil, water and not by
Liquefied gas；
Step S4, the gas-oil, the water and the gas not being liquefied are transported in oil water separator and are divided
From, wherein the water is deposited on the bottom of the oil water separator and discharge, and the gas not being liquefied is transported to pre- refining device
In, the gas-oil is transported in treater to obtain product oil；
Step S5 opens supercharger, and the pressure in the pre- refining device is made to be positive pressure state；
Step S6 opens vacuum machine, and the power of the reaction kettle internal pressure is made to be negative pressure state；
Step S7 opens the communicating valve between the pre- refining device and the reaction kettle, so that the useless machine in the pre- refining device
Oil is transported in the reaction kettle；
Step S8 closes the communicating valve between the pre- refining device and the reaction kettle；
Step S9 closes the supercharger, opens row pressure mouth, makes the normal pressure state normal pressure shape in the pre- refining device
State；
Step S10 closes the vacuum machine, opens row pressure mouth, makes the negative pressure state normal pressure shape in the reaction kettle
State is to be refined next time.
Further, include: to the preprocessing process of the used oil to be refined in step sl
The used oil to be refined is added in used oil storage rhone and drains by step S11；
Step S12, the used oil after draining, which is transported in washer, to be cleaned；
Step S13, the used oil after cleaning are transported in pH value blending blender and carry out pH value blending；
Step S14, the used oil after blending are transported in the pre- refining device and are preheated.
Further, in step s 2, after the pretreated used oil is transported to the reaction kettle；
It opens distribution box to heat the reaction kettle, heating temperature is the degree of 180 degree -370；
Catalyst is added into the reaction kettle to obtain gaseous used oil.
Further, in step s 2, the catalyst includes zinc oxide, aluminium oxide, artificial zeolite, carclazyte, molecular sieve
And ferrocene.
Further, in step s 4, it is added after the gas-oil is transported to the treater, in Xiang Suoshu treater de-
Toner, cleanser and adsorbent are to obtain product oil.
Further, in step s 12, after the used oil after draining is transported to the washer, in Xiang Suoshu washer
Cleaning solution is added；
Step S121 opens air compressor machine stirring；
Step S122 is stood to obtain the layering of the used oil after impurity, sediment and cleaning；
Step S123, impurity and sediment are discharged by the bottom of the washer；
Step S124, used oil enter in used oil storage tank.
Further, in the S12, the cleaning solution include 93% dilute sulfuric acid, 5% hydrochloric acid, 2% acetic acid and
10 kilograms of ferrous sulfate per ton.
Further, in step s 13, it after the used oil after cleaning is transported to pH value blending blender, is concocted to pH value
Neutralizer is added in blender；
Step S131 opens blender stirring；
Step S132 is stood to obtain the neutralizer and neutral oil and be layered；
Step S133, the neutralizer are discharged by the bottom of pH value blending blender；
Step S134, used oil enter neutral oil tank.
Further, in step s 13, the neutralizer include 35% sodium hydroxide, 20% ammonium hydroxide, 3% mistake
Hydrogen oxide, 4% sodium carbonate and 38% water.
Further, in step S14,
Step S141, the pre- refining device are heated to temperature and are in 30-50 degree；
Step S142 opens the supercharger, and pressure is made in the pre- refining device to be positive pressure state；
Step S143 opens the communicating valve between the pre- refining device and the reaction kettle, so that useless in the pre- refining device
Oil delivery is into the reaction kettle；
Step S144 closes the supercharger, makes the pressure normal pressure state in the pre- refining device.
The embodiment of the present invention has the advantages that
Used oil refinement pre-processes for, when refine for the first time, used oil successively passes through in the method for diesel oil, is anti-
Gas-oil, water and the gas not being liquefied are obtained after answering kettle, condenser and oil water separator, using by pretreated useless machine
Oil is refined, and the quality of diesel oil is improved, and gas-oil, which enters, to be continued to refine in treater, to obtain the diesel oil of high-quality, water
It is discharged from oil water separator, can be used for industrial production, the gas not being liquefied is entered in pre- refining device and carried out as fuel to useless
Fuel is saved in the preheating of machine oil, waste utilization, reduces production cost, when carrying out second of refinement, first opens supercharger, will
Boost in pressure in pre- refining device, which is positive, pressure state and to be maintained, and is opened vacuum machine, is negative pressure by the pressure reduction in reaction kettle
State simultaneously maintains, then opens the communicating valve between pre- refining device and reaction kettle, under the action of pressure difference, by what is had in pre- refining device
Used oil is pressed into according to institute's capacity inside reaction kettle to reaction kettle, after the completion of indentation, is closed between pre- refining device and reaction kettle
Communicating valve, close supercharger, make it is pre- refining device in pressure normal pressure state is become from normal pressure state, turn off vacuum machine, make
Negative pressure state in reaction kettle becomes normal pressure state, realizes in reaction kettle high temperature and with pressure in the case where can will give up
Machine oil is pressed into reaction kettle, realizes uninterrupted consecutive production, improves production efficiency.
Detailed description of the invention
It, below will be to embodiment party in order to illustrate more clearly of embodiments of the present invention or technical solution in the prior art
Formula or attached drawing needed to be used in the description of the prior art are briefly described.It should be evident that the accompanying drawings in the following description is only
It is merely exemplary, it for those of ordinary skill in the art, without creative efforts, can also basis
The attached drawing of offer, which is extended, obtains other implementation attached drawings.
Structure depicted in this specification, ratio, size etc., only to cooperate the revealed content of specification, for
Those skilled in the art understands and reads, and is not intended to limit the invention enforceable qualifications, therefore does not have technical
Essential meaning, the modification of any structure, the change of proportionate relationship or the adjustment of size are not influencing the function of the invention that can be generated
Under effect and the purpose that can reach, should all still it fall in the range of capable of the covering of disclosed technology contents.
Fig. 1 is the flow chart for the method that used oil refinement provided by the invention is diesel oil；
Fig. 2 is the flow chart for the step S1 that used oil refinement shown in FIG. 1 is diesel oil；
Fig. 3 is the flow chart for the step S2 that used oil refinement shown in Fig. 2 is diesel oil；
Fig. 4 is the flow chart for the step S3 that used oil refinement shown in Fig. 2 is diesel oil；
Fig. 5 is the flow chart for the step S4 that used oil refinement shown in Fig. 2 is diesel oil
Fig. 6 is the structure chart of used oil device for refining provided by the invention.
Icon: 1- pretreatment unit；2- reaction kettle；3- condenser；4- oil water separator；5- tail gas recycle device；6- purification
Device；7- refined oil storage tank；8- vacuum；9- liquidometer；11- used oil stores rhone；12- washer；The storage of 13- used oil
Tank；14-PH value concocts blender；15- neutrality oil tank；16- refines device in advance；The first discharge outlet of 111-；121- air compressor machine；122-
One feed inlet；123- first row mouth；131- second row mouth；141- blender；142- second charging aperture；143- third arranges mouth；
151- the 4th row mouthful；The combustion chamber 161-；162- supercharger；163- first pressure gauge；The first thermometer of 164-；The first safety of 165-
Valve；166- the first row pressure mouth；167- the 5th row mouthful；21- electrical heating net；22- distribution box；23- catalytic tower；24- first entrance；
25- third feed inlet；26- second pressure gauge；27- second temperature table；The second safety valve of 28-；29- the second row pressure mouth；201-
One oil discharge outlet；31- cooling cycle device；41- third discharge outlet；51- water inlet；The second discharge outlet of 52-；The second oil discharge outlet of 61-；
71- second entrance；72- the 7th row mouthful；81- vacuum machine；82- third pressure gauge；83- third row pressure mouth；84- the 6th row mouthful.
Specific embodiment
Embodiments of the present invention are illustrated by particular specific embodiment below, those skilled in the art can be by this explanation
Content disclosed by book is understood other advantages and efficacy of the present invention easily, it is clear that described embodiment is the present invention one
Section Example, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not doing
Every other embodiment obtained under the premise of creative work out, shall fall within the protection scope of the present invention.
The term of cited such as "upper", "lower", "left", "right", " centre ", is merely convenient to describe in this specification
Be illustrated, rather than to limit the scope of the invention, relativeness is altered or modified, and is changing technology without essence
It inside holds, when being also considered as the enforceable scope of the present invention.
As shown in Figures 1 to 5, a kind of used oil provided in this embodiment refines the method for diesel oil, step S1, wait refine
Used oil pre-processed；
Step S2 is transported in reaction kettle 2 pretreated used oil and carries out distillation refinement；
Step S3, the used oil after distillation is refined are transported in condenser 3 and liquefy, to obtain gas-oil, water and not
The gas being liquefied；
Step S4, gas-oil, water and the gas not being liquefied, which are transported in oil water separator 4, to be separated, wherein water is heavy
Bottom and discharge, the gas that is not liquefied of the product in oil water separator 4 are transported in pre- refining device 16, and gas-oil is transported to treater
To obtain product oil in 6；
Step S5 opens supercharger 162, and the pressure in pre- refining device 16 is made to be positive pressure state；
Step S6 opens vacuum machine 81, and the power of 2 internal pressure of reaction kettle is made to be negative pressure state；
Step S7 opens the communicating valve between pre- refining device 16 and reaction kettle 2, so that the used oil in refining device 16 is transported in advance
In reaction kettle 2；
Step S8 closes the communicating valve between pre- refining device 16 and reaction kettle 2；
Step S9 closes supercharger 162, opens row pressure mouth, makes the normal pressure state normal pressure state in pre- refining device 16；
Step S10, close vacuum machine 81, open row pressure mouth, make the negative pressure state normal pressure state in reaction kettle 2 with into
Row refines next time.
Used oil refinement pre-processes for, when refine for the first time, used oil successively passes through in the method for diesel oil, is anti-
Gas-oil, water and the gas not being liquefied are obtained after answering kettle 2, condenser 3 and oil water separator 4, using by pretreated
Used oil is refined, and the quality of diesel oil is improved, and gas-oil, which enters in treater 6, to be continued to refine, to obtain the bavin of high-quality
Oil, water are discharged from oil water separator 4, can be used for industrial production, and the gas not being liquefied enters in pre- refining device 16 as fuel
The preheating to used oil is carried out, fuel is saved in waste utilization, reduces production cost, when carrying out second of refinement, is first opened
Boost in pressure in pre- refining device 16 is positive and pressure state and maintains, opens vacuum machine 81 by supercharger 162, will be in reaction kettle 2
Pressure reduction, which is negative, pressure state and to be maintained, then opens the communicating valve between pre- refining device 16 and reaction kettle 2, in the effect of pressure difference
Under, the used oil having in pre- refining device 16 is pressed into according to institute's capacity inside reaction kettle 2 to reaction kettle 2, after the completion of indentation,
The communicating valve between pre- refining device 16 and reaction kettle 2 is closed, supercharger 162 is closed, makes the pressure in pre- refining device 16 by normal pressure shape
State becomes normal pressure state, turns off vacuum machine 81, so that the negative pressure state in reaction kettle 2 is become normal pressure state, realizes anti-
It answers 2 high temperature of kettle and used oil can be pressed into reaction kettle 2 in the case where having pressure, realize uninterrupted consecutive production, mention
High efficiency.
Please continue to refer to Fig. 1 to Fig. 5, wherein the preprocessing process for treating the used oil of refinement in step sl includes:
Used oil to be refined is added in used oil storage rhone 11 and drains by step S11；
Step S12, the used oil after draining are transported in washer 12 and are cleaned；
Step S13, the used oil after cleaning are transported in pH value blending blender 14 and carry out pH value blending；
Step S14, the used oil after blending are transported in pre- refining device 16 and are preheated.
In this embodiment, include draining, cleaning for the pretreatment of used oil, neutralize and preheat, in drainage procedure
By the most of moisture content mixed in used oil remove, mitigate reaction kettle 2 distill when burden, the used oil after draining need by
Cleaning, by the impurity in used oil, additive contained in oxide and used oil, such as viscosity index improver and thickening
Agent, most of these additives are rubber products, if early period does not dispose these, used oil refines distillation in reaction kettle 2
During these harmful additives also later period process can be entered as used oil is distilled off together by high temperature evaporation simultaneously,
To which these substances that can influence diesel quality have just been dissolved into the diesel oil after refining further through the liquefaction of condenser 3 later,
It causes because colloidal substance content will excessively cause the situation for blocking engine to occur, burns when can also burn in engine
It is not clean, carbon distribution is generated in engine interior and damages engine, it is therefore desirable to used oil be cleaned, the matter of diesel oil is improved
Amount, reduces the yield of waste residue in reaction kettle 2, increases the capacity for the used oil that can be accommodated in reaction kettle 2, after cleaning again
Neutralization step is entered, in a upper cleaning process, cleaning lotion used is acidic materials, equally can also make used oil pH value
It changes, if pH value is not neutrality, when refining in reaction kettle 2, will affect the quality of diesel oil after refining, it is therefore desirable to right
Used oil after cleaning is neutralized, and the quality of product oil is improved, and is finally preheated by pre- refining device 16.
Please continue to refer to Fig. 1 to Fig. 5, wherein in step s 2, after pretreated used oil is transported to reaction kettle 2；
It opens distribution box 22 to heat reaction kettle 2, heating temperature is the degree of 180 degree -370；
Catalyst is added into reaction kettle 2 to obtain gaseous used oil.
Further, in step s 2, catalyst includes 3 kilograms of zinc oxide, 3 kilograms of aluminium oxide, 8 kilograms artificial
Zeolite, 2.5 kilograms of carclazyte, 1.5 kilograms of molecular sieve and 0.5 kilogram of ferrocene.
In this embodiment, after used oil enters reaction kettle 2, distribution box 22 is opened, is reacted by 21 on tos on to of electrical heating net
Kettle 2 is heated, and by temperature control between the degree of 180 degree -370, while catalyst is put into reaction kettle 2 by catalytic tower 23
Inside starts used oil catalytic distillation refining diesel oil, and traditional used oil is refined to be heated using coal, and the energy is more clear
Clean, without open fire, security performance is higher, and the automatically controlled temperature range that can more easily control heating, improves the finished product of diesel oil
Rate, for example, diesel oil boiling range temperature in 180-370 degree, if temperature cannot be controlled and be separated, cause beyond temperature range, one
Denier goes beyond the scope, and is just not belonging to the fraction process of diesel oil, if increasing temperature with coal, for example, thermometer shows degree of reaction
Temperature is 200 degree, then I needs fraction caused by 220 degree of temperature, when temperature is inadequate, coal charcoal is needed to burn away liter
Temperature is needed to keep 220 degree of temperature, cannot achieve when temperature has reached 220 degree, and coal will continue to burning beyond 220
Degree, is just not belonging to the fraction process of diesel oil, so that the quality fuel-displaced to the later period impacts, then can control and adds using electric heating
Hot temperature, setting value are fixed, and without departing from boiling range range, boiling range range, which is protected, goes out to improve the quality of oil.
Please continue to refer to Fig. 1 to Fig. 5, wherein in step s 4, after gas-oil is transported to treater 6, into treater 6
Decolorising agent, cleanser and adsorbent is added to obtain product oil.
In this embodiment, gas-oil is further refined by treater 6, be added decolorising agent, cleanser and
Adsorbent etc. improves the quality of product oil to obtain product oil.
Please continue to refer to Fig. 1 to Fig. 5, wherein in step s 12, after the used oil after draining is transported to washer 12, to
Cleaning solution is added in washer 12；
Step S121 opens air compressor machine 121 and stirs；
Step S122 is stood to obtain the layering of the used oil after impurity, sediment and cleaning；
Step S123, impurity and sediment are discharged by the bottom of washer 12；
Step S124, used oil enter in used oil storage tank 13.
Further, in S12, cleaning solution includes 93% dilute sulfuric acid, 5% hydrochloric acid, 2% acetic acid and per ton 10 public
The ferrous sulfate of jin.
In this embodiment, the purpose of cleaning is in mechanical admixture, oxide and used oil contained in removal used oil
Various additives contained by script become clean used oil after all washing, and refining postorder is the process of diesel oil
The quality of middle oil can improve, if do not cleaned, these substances for being included can greatly reduce the quality of product oil, after cleaning
The yield of waste residue when also substantially reducing oil refining in reaction kettle 2, increases the used oil that can be accommodated when oil refining in reaction kettle 2
Capacity.
Please continue to refer to Fig. 1 to Fig. 5, wherein in step s 13, the used oil after cleaning is transported to pH value blending stirring
After device 14, neutralizer is added into pH value blending blender 14；
Step S131 opens blender 141 and stirs；
Step S132 is stood to obtain neutralizer and neutral oil and be layered；
Step S133, neutralizer are discharged by the bottom of pH value blending blender 14；
Step S134, used oil enter neutral oil tank 15.
Further, in step s 13, neutralizer include 35% sodium hydroxide, 20% ammonium hydroxide, 3% peroxidating
Hydrogen, 4% sodium carbonate and 38% water.
In this embodiment, used oil can be made since oxidation and its allometamorphism factor can occur in use for used oil
PH value change, the cleaning solution that is added is acidic materials during the cleaning of a upper process, equally can also make used oil
PH value change, so neutralizer, which is just added, by the pH value of used oil is adjusted to neutrality, if pH value be not it is neutral,
In reaction kettle 2 when refining diesel oil, influence whether the effect of catalyst, the quality of the diesel oil extracted can decline, influence the later period at
The use of product oil.
Please continue to refer to Fig. 1 to Fig. 5, wherein in step S14,
Step S141, pre- refining device 16 are heated to temperature and are in 30-50 degree；
Step S142 opens supercharger 162, and pressure is made in pre- refining device 16 to be positive pressure state；
Step S143 opens the communicating valve between pre- refining device 16 and reaction kettle 2, so that the used oil conveying in refining device 16 in advance
Into reaction kettle 2；
Step S144 closes supercharger 162, makes the pressure normal pressure state in pre- refining device 16.
In this embodiment, used oil is heated in refining device 16 in advance in advance, then opens supercharger 162, will be refined in advance
Pressure in device 16 is improved to normal pressure, opens the communicating valve between pre- refining device 16 and reaction kettle 2, makes the useless machine in pre- refining device 16
Oil is pressed into reaction kettle 2 under the action of normal pressure, when the oil mass of indentation reaches the oil mass that reaction kettle 2 can accommodate, is closed
Communicating valve is closed, supercharger 162 is turned off, by the pressure venting in pre- refining device 16 to normal pressure state, temperature is kept to be in 30-50
Degree waits the refinement of used oil next time.
As shown in fig. 6, the embodiment of the invention also provides a kind of used oil device for refining, including pretreatment unit 1, reaction
Kettle 2, condenser 3, oil water separator 4, tail gas recycle device 5, treater 6, refined oil storage tank 7 and vacuum 8；
Pretreatment unit 1, reaction kettle 2, condenser 3, oil water separator 4 are sequentially connected；
One end of tail gas recycle device 5 is connected with oil water separator 4, and the other end is connected with pretreatment unit 1；
Treater 6 is connected with oil water separator 4；
Refined oil storage tank 7 is connected with treater 6；
Vacuum 8 is connected with oil water separator 4；
The exterior circumferential of reaction kettle 2 is provided with electrical heating net 21；
The lower section of condenser 3 is provided with cooling cycle device 31.
The used oil device for refining includes pretreatment unit 1, reaction kettle 2, condenser 3, oil water separator 4, tail gas recycle
Device 5, treater 6, refined oil storage tank 7 and vacuum 8, used oil enter in reaction kettle 2, by the heating liter of electrical heating net 21
Temperature, used oil becomes gas and enters in condenser 3, and by the liquefaction of condenser 3, gas becomes gas-oil and a small amount of water
Part, the gas not being liquefied is tail gas, and three is mixed into oil water separator 4, since the density of three is different, water it is close
Degree is most heavy, is deposited on the bottom of oil water separator 4 and discharge, and gas-oil, which enters in treater 6, carries out refining filtering as bavin
Oil is stored in refined oil storage tank 7, and tail gas enters in tail gas recycle device 5, and the other end of tail gas recycle device 5 and pretreatment fill
It sets 1 to be connected, participates in pretreatment process, the exterior circumferential of reaction kettle 2 is provided with electrical heating net 21, and traditional used oil refinement is adopted
It is heated with coal, the energy more cleans, and without open fire, security performance is higher, and automatically controlled can more easily control heating
Temperature range, improve the yield rate of diesel oil, the lower section of condenser 3 be provided with cooling cycle device 31, prevents in condenser 3
Water temperature raising is fully liquefied gaseous state gas-oil not, influences oil yield, and condenser 3 is made to be always maintained at good condensation liquefaction effect
Fruit liquefies gaseous state gas-oil completely, avoids being lost, and by increasing vacuum 8, the pressure in reaction kettle 2 is become negative pressure, is made
It still is able to continue in the case of a high temperature continuous oil and is refined, and improves the efficiency of refinement, realizes uninterrupted consecutive production.
Please continue to refer to Fig. 6, wherein pretreatment unit 1 includes that used oil stores rhone 11, washer 12, used oil
Storage tank 13, pH value blending blender 14, neutral oil tank 15 and pre- refining device 16；
Used oil stores rhone 11, washer 12, used oil storage tank 13, pH value blending blender 14, neutral oil tank
15 are sequentially connected with pre- refining device 16 by oil pipeline；
Pre- refining device 16 is connected with reaction kettle 2 by oil pipeline.
It further, further include air compressor machine 121；
Air compressor machine 121 is connected with washer 12.
It further, further include blender 141；
Blender 141 is set to the top of pH value blending blender 14.
Further, the side bottom of used oil storage rhone 11 is provided with the first discharge outlet 111.
Further, the top of washer 12 is provided with first charging aperture 122, and lower section is provided with first row mouth 123.
Further, the side bottom of used oil storage tank 13 is provided with second row mouth 131.
Further, the top of pH value blending blender 14 is provided with second charging aperture 142, and lower section is provided with third row's mouth
143。
Further, the side bottom of neutral oil tank 15 is provided with the 4th row mouthful 151.
Further, the top of refining device 16 is provided with first pressure gauge 163, the first thermometer 164, the first safety valve in advance
165 and the first row pressure mouth 166, side bottom be provided with the 5th row mouthful 167.
In this embodiment, it is not cleaned up in harmful substance, such as used oil contained in used oil before refinement
Contained viscosity index improver and tackifier is all to be made of rubber product, if early period does not dispose these, in reaction kettle
These harmful additives also can be simultaneously by high temperature evaporation as used oil distills out together during used oil refines distillation in 2
It goes to enter later period process, so that these substances that can influence diesel quality are just dissolved into further through the liquefaction of condenser 3 later
In diesel oil after refining, cause because colloidal substance content will excessively cause the situation for blocking engine to occur, it also can be
It burns when burning in engine not clean, damages engine in engine interior so producing carbon distribution, it is therefore desirable to useless machine
Oil is pre-processed, specifically, first passing through used oil storage rhone 11, will enter cleaning after the moisture content discharge in used oil
In device 12, a certain amount of cleaning solution is added in washer 12, opens air compressor machine 121, cleaning is stirred to used oil, cleans
The impurity generated afterwards is deposited on the bottom of washer 12, and is layered with used oil, is discharged by the bottom of washer 12, by used oil
In impurity reject after, improve end product oil quality, used oil enter pH value blending blender 14 in, pH value blending
A certain amount of neutralizer is added in blender 14, opens blender 141, neutralizer and used oil is made to be sufficiently mixed adjusting pH value,
Since neutralizer is different from the density of used oil, it is capable of forming layering, neutralizer is deposited on the bottom of pH value blending blender 14
And be discharged, the used oil for being adjusted to neutrality, which enters in neutral oil tank 15, temporarily to be stored, then into pre- refining device 16
In.
Please continue to refer to Fig. 6, wherein combuster 161 is arranged below pre- refining device 16；
Combustion chamber 161 is connected with tail gas recycle device 5.
Further, the top of tail gas recycle device 5 is provided with water inlet 51, and lower section is provided with the second discharge outlet 52.
In this embodiment, combuster 161, the tail gas that tail gas recycle device 5 is recycled are set in the lower section of refining device 16 in advance
It is connected with combustion chamber 161, tail gas is used for the fuel of combustion chamber 161, waste is made full use of, saves cost.
Please continue to refer to Fig. 6, wherein further include supercharger 162；
Supercharger 162 is connected with pre- refining device 16.
In this embodiment, during pre- refining, supercharger 162 is opened, by the used oil for completing to refine in advance according to reaction
2 capacity of kettle is required through pressure indentation, closes supercharger 162 after the completion, and the pre- pressure refined inside device 16 passes through the first row pressure mouth
166 discharges, keep temperature-resistant.
Please continue to refer to 6, wherein further include vacuum machine 81；
Vacuum machine 81 is connected with vacuum 8.
Further, the top of vacuum 8 is provided with third pressure gauge 82 and third row pressure mouth 83, and lower section is provided with the 6th
Arrange mouth 84.
In this embodiment, existing used oil refining equipment is in high temperature when raw material will be used up in reaction kettle 2
And pressure is had, and it is the operation that can not be opened feed inlet and carry out continuing oil in the case of this kind, it is residual in reaction kettle 2 if opening by force
The oil stayed can enter feed inlet and be easy to cause spontaneous combustion or explosion, and reaction kettle 2 can only be waited, which to be reduced to after room temperature, can just continue oil,
Normal pressure in reaction kettle 2 is become negative pressure, the normal pressure generated when more than oil inlet makes it by increasing vacuum 8 by the application
It still is able to continue continuous oil in the case of a high temperature to be refined, improves the efficiency of refinement, realize uninterrupted consecutive production, save
Time, the efficiency of refinement is improved, decrease the loss of 2 internal heat of reaction kettle, saves production cost, and improve peace
The pressure of full protection, vacuum 8 can also be regulated and controled to cope with emergency situations.
Please continue to refer to Fig. 6, wherein further include distribution box 22；
Distribution box 22 is connected with electrical heating net 21.
It further, further include catalytic tower 23；
Catalytic tower 23 is set between reaction kettle 2 and condenser 3.
Further, the top of reaction kettle 2 is provided with first entrance 24, third feed inlet 25, second pressure gauge 26, second
Thermometer 27, the second safety valve 28 and the second row pressure mouth 29, side bottom are provided with the first oil discharge outlet 201.
In this embodiment, after used oil enters reaction kettle 2, distribution box 22 is opened, is reacted by 21 on tos on to of electrical heating net
Kettle 2 is heated, and by temperature control between the degree of 180 degree -370, while catalyst is put into reaction kettle 2 by catalytic tower 23
Inside starts used oil catalytic distillation refining diesel oil, and traditional used oil is refined to be heated using coal, and the energy is more clear
Clean, without open fire, security performance is higher, and the automatically controlled temperature range that can more easily control heating, improves the finished product of diesel oil
Rate, for example, diesel oil boiling range temperature in 180-370 degree, if temperature cannot be controlled and be separated, cause beyond temperature range, one
Denier goes beyond the scope, and is just not belonging to the fraction process of diesel oil, if increasing temperature with coal, for example, thermometer shows degree of reaction
Temperature is 200 degree, then I needs fraction caused by 220 degree of temperature, when temperature is inadequate, coal charcoal is needed to burn away liter
Temperature is needed to keep 220 degree of temperature, cannot achieve when temperature has reached 220 degree, and coal will continue to burning beyond 220
Degree, is just not belonging to the fraction process of diesel oil, so that the quality fuel-displaced to the later period impacts, then can control and adds using electric heating
Hot temperature, setting value are fixed, and without departing from boiling range range, boiling range range, which is protected, goes out to improve the quality of oil.
Please continue to refer to Fig. 6, wherein washer 12, pH value blending blender 14, oil water separator 4 and refined oil storage tank 7
On be provided with a liquidometer 9.
Further, the lower section of oil water separator 4 is provided with third discharge outlet 41.
Further, the side bottom of treater 6 is provided with the second oil discharge outlet 61.
Further, the top of refined oil storage tank 7 is provided with second entrance 71, and side bottom is provided with the 7th row mouthful 72.
In this embodiment, by the way that liquidometer 9, real-time monitoring washer 12, pH value blending blender 14, grease point is arranged
Height from the liquid level in device 4 and refined oil storage tank 7 avoids influencing production process when liquid level is too high or too low.
Please continue to refer to Fig. 6, wherein cooling cycle device 31 uses liquid nitrogen or freon.
In this embodiment, the condenser 3 of prior art device is single Water-cooling circulating, the liquefaction condensation effect of generation
With the increase of production operation time, temperature is constantly increased, and will make condenser when high-temperature oil gas passes through condenser 3 later
Recirculated water water temperature inside 3 increases, once increasing, does not just have good condensation liquefaction effect, to make the inner script of condenser 3
Can liquefied oil gas be not liquefied because of water temperature problem, a part can be lost as tail gas enters the laggard of oil water separator 4
Enter tail gas recycle and be discharged into the burn-up of combustion chamber 161, therefore reduce oil yield, causes waste, the application is followed condenser 3
The problem of having installed cooling cycle device 31 in ring water additional, can having increased to water temperature is ensured, recirculated water in condenser 3 is capable of fixing
The temperature of water temperature will not increase, and operate within normal range (NR), promote the effect of condensation, make liquable oil gas all by liquid
Change, be not lost and just constitute increasing for oil yield, liquid nitrogen or freon can be used in cooling cycle device 31, and being able to satisfy equipment needs
It asks.
Although above having used general explanation and specific embodiment, the present invention is described in detail, at this
On the basis of invention, it can be made some modifications or improvements, this will be apparent to those skilled in the art.Therefore,
These modifications or improvements without departing from theon the basis of the spirit of the present invention are fallen within the scope of the claimed invention.
Claims (10)
1. a kind of method that used oil refines as diesel oil, which is characterized in that
Step S1, the used oil for treating refinement are pre-processed；
Step S2, pretreated used oil, which is transported in reaction kettle, carries out distillation refinement；
Step S3, the used oil after distillation refinement, which is transported in condenser, to liquefy, to obtain gas-oil, water and not be liquefied
Gas；
Step S4, the gas-oil, the water and the gas not being liquefied are transported in oil water separator and are separated,
In, the water is deposited on the bottom of the oil water separator and discharge, and the gas not being liquefied is transported in pre- refining device, institute
Gas-oil is stated to be transported in treater to obtain product oil；
Step S5 opens supercharger, and the pressure in the pre- refining device is made to be positive pressure state；
Step S6 opens vacuum machine, and the power of the reaction kettle internal pressure is made to be negative pressure state；
Step S7 opens the communicating valve between the pre- refining device and the reaction kettle, so that the used oil in the pre- refining device is defeated
It is sent in the reaction kettle；
Step S8 closes the communicating valve between the pre- refining device and the reaction kettle；
Step S9 closes the supercharger, opens row pressure mouth, makes the normal pressure state normal pressure state in the pre- refining device；
Step S10, closes the vacuum machine, opens row pressure mouth, make the negative pressure state normal pressure state in the reaction kettle with
It is refined next time.
2. used oil according to claim 1 refine be diesel oil method, which is characterized in that in step sl to it is described to
The preprocessing process of the used oil of refinement includes:
The used oil to be refined is added in used oil storage rhone and drains by step S11；
Step S12, the used oil after draining, which is transported in washer, to be cleaned；
Step S13, the used oil after cleaning are transported in pH value blending blender and carry out pH value blending；
Step S14, the used oil after blending are transported in the pre- refining device and are preheated.
3. the method that used oil according to claim 1 refines as diesel oil, which is characterized in that in step s 2, described pre-
Treated after used oil is transported to the reaction kettle；
It opens distribution box to heat the reaction kettle, heating temperature is the degree of 180 degree -370；
Catalyst is added into the reaction kettle to obtain gaseous used oil.
4. the method that used oil according to claim 3 refines as diesel oil, which is characterized in that in step s 2, described to urge
Agent includes zinc oxide, aluminium oxide, artificial zeolite, carclazyte, molecular sieve and ferrocene.
5. the method that used oil according to claim 4 refines as diesel oil, which is characterized in that in step s 4, described thick
Decolorising agent, cleanser and adsorbent are added after diesel oil is transported to the treater, in Xiang Suoshu treater to obtain product oil.
6. the method that used oil according to claim 2 refines as diesel oil, which is characterized in that in step s 12, after draining
Used oil be transported to the washer after, cleaning solution is added in Xiang Suoshu washer；
Step S121 opens air compressor machine stirring；
Step S122 is stood to obtain the layering of the used oil after impurity, sediment and cleaning；
Step S123, impurity and sediment are discharged by the bottom of the washer；
Step S124, used oil enter in used oil storage tank.
7. the method that used oil according to claim 6 refines as diesel oil, which is characterized in that described clear in the S12
Washing lotion include 93% dilute sulfuric acid, 5% hydrochloric acid, 2% acetic acid and 10 kilograms of ferrous sulfate per ton.
8. the method that used oil according to claim 2 refines as diesel oil, which is characterized in that in step s 13, after cleaning
Used oil be transported to pH value blending blender after, to pH value blending blender in neutralizer is added；
Step S131 opens blender stirring；
Step S132 is stood to obtain the neutralizer and neutral oil and be layered；
Step S133, the neutralizer are discharged by the bottom of pH value blending blender；
Step S134, used oil enter neutral oil tank.
9. used oil according to claim 8 refine be diesel oil method, which is characterized in that in step s 13, it is described in
With liquid include 35% sodium hydroxide, 20% ammonium hydroxide, 3% hydrogen peroxide, 4% sodium carbonate and 38% water.
10. the method that used oil according to claim 2 refines as diesel oil, which is characterized in that in step S14,
Step S141, the pre- refining device are heated to temperature and are in 30-50 degree；
Step S142 opens the supercharger, and pressure is made in the pre- refining device to be positive pressure state；
Step S143 opens the communicating valve between the pre- refining device and the reaction kettle, so that the used oil in the pre- refining device
It is transported in the reaction kettle；
Step S144 closes the supercharger, makes the pressure normal pressure state in the pre- refining device.
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2007101142A4 (en) * | 2007-11-29 | 2008-01-31 | Moshi Dou | Equipment of recovering waste lubricant to diesel or lubricant |
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2019
- 2019-01-31 CN CN201910101330.2A patent/CN109797001A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2007101142A4 (en) * | 2007-11-29 | 2008-01-31 | Moshi Dou | Equipment of recovering waste lubricant to diesel or lubricant |
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