CN1253533C - Process for refining diesel oil from waste oil - Google Patents
Process for refining diesel oil from waste oil Download PDFInfo
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- CN1253533C CN1253533C CN 200410060876 CN200410060876A CN1253533C CN 1253533 C CN1253533 C CN 1253533C CN 200410060876 CN200410060876 CN 200410060876 CN 200410060876 A CN200410060876 A CN 200410060876A CN 1253533 C CN1253533 C CN 1253533C
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Abstract
The present invention relates to a method for refining waste oil into diesel oil. A catalyst is added into the waste oil to carry out distillation, light component steam generated by boiling enters a condenser to be condensed, a purifying agent is added into the obtained liquid after a liquid phase reaches 360 to 380 DEGC, a stabilizing agent is added after clearing and filtering are carried out, and a finished product is obtained after filtering. The method for refining waste oil into diesel oil is used for refining the diesel oil, and asphaltine, gelatine, additives, metal salts, etc. remaining in distillation residues of the waste oil can be removed. The refined diesel oil is pale yellow, transparent, bright or light red and lucent, and the external appearance of the refined diesel oil is basically the same as that of No. 0 diesel oil. Refining equipment is simple, technology is simple, and the obtained product can be completely used for vehicles to run.
Description
Technical field
The invention belongs to the method field that the waste oil refinery is become diesel oil.
Background technology
Because the oxygenizement of lubricating oil high temperature and air in the process of using, meeting aged deterioration gradually, add metal-powder, respiration and other reason of grinding on the friction parts and enter the moisture in the oil, the impurity of from environment, invading, not only pollute oil, and can also promote oxidation of lubricating oil.So the color of lubricating oil deepens gradually, acid number rises, and acidic smell has been arranged, and produce throw out, greasy filth, paint film and hard varnish film.These electrodeposition substances cause the various faults of machine on the duct and purifier of the surface that rubs parts, lubricating oil circulation.Simultaneously, the acting in conjunction of acidic substance and oxide compound can also make metallic corrosion speed up.
Have many materials in the waste oil, carboxylic-acid, carboxylic acid esters, aldehydes, ketone, alcohols, phenols, peroxide of oxygenatedchemicals etc. are arranged with heterogeneity; Sulfocompound such as thiophene-based, hydrogenation thiophene-based and a small amount of sulfide, disulphide are arranged; Thiosulphate from additive, olefine sulfide, phosphosulfurized olefin etc. are arranged, and the halogen compounds of existence is just like chlorocarbon, and nitrogen compound also has hydro carbons such as stable hydrocarbon and awns hydrocarbon just like amine, pyridines, pyroles etc.
In order to protect environment,, occurred some and from waste oil, separated the technology of objectionable impurities also in order to make full use of resource.For example existing people adopts the distillatory way to come separating impurity.
Distillation is a kind ofly to utilize different compounds that the principle of different boiling is arranged and carry out isolating method.Its process generally is the extremely boiling of liquid heat that will be distilled, and the light constituent in the liquid is vaporized into steam, enters condenser condenses and becomes liquid, and heavy constituent are then stayed in the boiling liquid, reach isolating purpose.But owing to also can not find technical scheme preferably, the effect of separation and impurity elimination is very undesirable, and the fry dried food ingredients that distills out is black smelly, and density is big, and gel easily can only be used as fuel.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of method of waste oil being implemented distillation back acquisition derv fuel oil.
The present invention solves the problems of the technologies described above with following technical scheme: added catalyzer to waste oil and distilled, the light constituent steam that boiling produces enters condensation in the condenser.After liquid phase reaches 360-380 ℃, the liquid that obtains is added scavenging agent.See through the filter back clearly and add stablizer, get finished product after the filtration.
The prescription of catalyzer is expressed as by weight percentage:
Molecular sieve " 5A type " 40-60 sodium Metal 99.5 20-40
Potassium fluoborate 5-15 acetylene black 5-15
The weight percent of catalyzer add-on is 0.6-1.3 ‰.
The prescription of scavenging agent is expressed as by weight percentage:
Sodium amide 20-30 Textone 10-20 cobalt chloride 15-25
Graphite 20-25 polymethylphenyl siloxane fluid 15-25
The weight percent of scavenging agent add-on is 5-8 ‰.
The prescription of stablizer is expressed as by weight percentage:
Propylene carbonate 60-80 divinylbenzene 20-40
The weight percent of stablizer add-on is 0.2-0.9 ‰.
Use this waste oil refinery to become the method refining diesel oil of diesel oil, the bituminous matter in the waste oil, colloid, additive, metal-salt etc. can be stayed and remove in the distillation residue, the diesel oil of refining out is yellowish transparent bright or light red bright, and outward appearance is basic identical with No. zero diesel oil; But refining equipment is uncomplicated, and technology is simpler, and the product that obtains can be used for vehicle fully and travel.
Description of drawings
Fig. 1 is the process flow sheet that the present invention becomes the waste oil refinery method of diesel oil.Among the figure: 1-waste oil treatment pond 2-still kettle 3-cooling jacket 4-goes out oil tank 5-and goes out oil sump 6-treating pond 7-stabilization pond 8-filter screen 9-product tank
Embodiment
Still-process be the liquid heat that will be distilled to boiling, the light constituent in the liquid is vaporized into steam, separates with heavy constituent in staying boiling liquid.The light constituent steam enters condenser condenses and becomes liquid.Along with the minimizing of light constituent in the liquid in the still, the ebullient liquidus temperature rises gradually in the still-process, and it is heavy that the steam of generation also becomes gradually, and the cut that obtains after the condensation is also more and more heavier.Generally contain light Fuel 1～10% in the waste oil, reach 30% sometimes.In order to steam diesel oil distillate, liquid phase then will reach 360～380 ℃.
Because it is a lot of to influence the factor of waste oil cracking degree in still-process, occurs the incomplete problem of cracking easily.For promoting the cracking of waste oil, accelerate fuel-displaced and the fuel-displaced time of shortening, improve oil yield, can in distillation forward direction waste oil, add catalyzer, the main component of catalyzer is molecular sieve, sodium Metal 99.5, potassium fluoborate and acetylene black.The waste oil that has added catalyzer, before the critical tail oil of evaporate to dryness not, oil yield generally can reach 80% in the still-process.The diesel oil that obtains through catalytic distillation has often just distilled and has just turned black smellyly, and density is also higher, needs to purify and stable.
Purifying mainly is to impel refinery diesel oil generation qualitative change, makes the various impurity, the colloid flocking settling that are suspended in the oil, reduces oil density, drives away the oil product stink.After quiet coagulating, the sticking body of black all is sunken to the bottom, and oil product becomes light greenish blue black saturating, and concentration lowers, and stink reduces.Should allow its gravity flow flow into another pond after the purification and make stabilizing treatment.The main component of scavenging agent is sodium amide, Textone, cobalt chloride, Graphite Powder 99, polymethylphenyl siloxane fluid.
Add stablizer again in another pond.Oil product becomes yellowish bright immediately after adding stablizer.At this moment, also have considerable part impurity to remain sedimentation, should wait for quietly for some time.The main component of stablizer is propylene carbonate and divinylbenzene.
After filtering with filter cloth, oil product becomes yellowish transparent bright or light red bright, outward appearance and No. zero diesel oil basically identical.
Embodiment one:
With in the 1Kg catalyzer adding 1T waste lubricating oil and behind the mixing, mixed solution enters the still kettle distillation.The composition of catalyzer is expressed as with weight percent:
Molecular sieve " 5A type " 53 sodium Metal 99.5s 32 potassium fluoborates 10 acetylene blacks 5
After beginning distillation with still kettle, the light constituent steam that boiling produces leaves still, enters the liquid that congeals in the condenser through airway.Liquid phase reaches 370 ℃ and is about to enter out oil sump again after remaining liq is imported out oil tank in the still, adds the 5Kg scavenging agent in treating pond, and the composition of scavenging agent is expressed as with weight percent:
Sodium amide 23 Textones 19 cobalt chloride 18 Graphite Powder 99s 25 polymethylphenyl siloxane fluids 15
Quiet liquid is from flowing into another pond after 12 hours with fixed attention, and adding stablizer 0.2Kg carries out stabilizing treatment.Stablizer
Composition is expressed as with weight percent: carbonic acid benzene alkene ester 70 divinylbenzenes 30
Quiet 12 hours after-filtration with fixed attention get finished diesel fuel 800Kg.
Embodiment two:
With in the 0.6Kg catalyzer adding 1T waste lubricating oil and behind the mixing, mixed solution enters the still kettle distillation.The composition of catalyzer is expressed as with weight percent:
Molecular sieve " 5A type " 40 sodium Metal 99.5s 39 potassium fluoborates 15 acetylene blacks 6
After beginning distillation with still kettle, the light constituent steam that boiling produces leaves still, enters the liquid that congeals in the condenser through airway.Liquid phase reaches 360 ℃ and is about to enter out oil sump again after remaining liq is imported out oil tank in the still, adds scavenging agent 7Kg in treating pond, and the composition of scavenging agent is expressed as with weight percent:
Sodium amide 20 Textones 15 cobalt chloride 25 Graphite Powder 99s 20 polymethylphenyl siloxane fluids 20
Quiet liquid is from flowing into another pond after 10 hours with fixed attention, and adding stablizer 0.7Kg carries out stabilizing treatment.Stablizer
Composition is expressed as with weight percent: carbonic acid benzene alkene ester 60 divinylbenzenes 40
Quiet 10 hours after-filtration with fixed attention get finished diesel fuel 820Kg.
Embodiment three:
With in the 1.3Kg catalyzer adding 1T waste lubricating oil and behind the mixing, mixed solution enters the still kettle distillation.The composition of catalyzer is expressed as with weight percent:
Molecular sieve " 5A type " 60 sodium Metal 99.5s 20 potassium fluoborates 5 acetylene blacks 15
After beginning distillation with still kettle, the light constituent steam that boiling produces leaves still, enters the liquid that congeals in the condenser through airway.Liquid phase reaches 380 ℃ and is about to enter out oil sump again after remaining liq is imported out oil tank in the still, adds the 8Kg scavenging agent in treating pond, and the composition of scavenging agent is expressed as with weight percent:
Sodium amide 30 Textones 10 cobalt chloride 15 Graphite Powder 99s 22 polymethylphenyl siloxane fluids 23
Quiet liquid is from flowing into another pond after 15 hours with fixed attention, and adding stablizer 0.9Kg carries out stabilizing treatment.The composition of stablizer is expressed as with weight percent: carbonic acid benzene alkene ester 80 divinylbenzenes 20
Quiet 15 hours after-filtration with fixed attention get finished diesel fuel 850Kg.
Claims (1)
1. a waste oil refinery becomes the method for diesel oil, separate light constituent and heavy constituent with distillation method, it is characterized in that having added catalyzer to waste oil distills again, the light constituent steam that boiling produces enters condensation in the condenser, after liquid phase reaches 360-380 ℃, the liquid that obtains is added scavenging agent, see through the filter back clearly and add stablizer, get finished product after the filtration; Wherein:
(1) prescription of catalyzer is expressed as by weight percentage:
Molecular sieve " 5A type " 40-60 sodium Metal 99.5 20-40
Potassium fluoborate 5-15 acetylene black 5-15
The weight percent of catalyzer add-on is the 0.6-1.3 ‰ of waste oil weight.
(2) prescription of scavenging agent is expressed as by weight percentage:
Sodium amide 20-30 Textone 10-20 cobalt chloride 15-25
Graphite Powder 99 20-25 polymethylphenyl siloxane fluid 15-25
The weight percent of scavenging agent add-on is the 5-8 ‰ of waste oil weight.
(3) prescription of stablizer is expressed as by weight percentage:
Propylene carbonate 60-80 divinylbenzene 20-40
The weight percent of stablizer add-on is the 0.2-0.9 ‰ of waste oil weight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410060876 CN1253533C (en) | 2004-09-16 | 2004-09-16 | Process for refining diesel oil from waste oil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410060876 CN1253533C (en) | 2004-09-16 | 2004-09-16 | Process for refining diesel oil from waste oil |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1616602A CN1616602A (en) | 2005-05-18 |
| CN1253533C true CN1253533C (en) | 2006-04-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 200410060876 Expired - Fee Related CN1253533C (en) | 2004-09-16 | 2004-09-16 | Process for refining diesel oil from waste oil |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101775331A (en) * | 2010-03-01 | 2010-07-14 | 闫涛 | Method for extracting base oil from used oil by catalytic oxidation |
| CN106190275A (en) * | 2016-07-07 | 2016-12-07 | 汝州鑫源生物能源科技有限公司 | A kind of used oil prepares the method for clean fuel liquid |
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