CN109957420A - A kind of preprocess method of waste mineral oil - Google Patents
A kind of preprocess method of waste mineral oil Download PDFInfo
- Publication number
- CN109957420A CN109957420A CN201711336493.6A CN201711336493A CN109957420A CN 109957420 A CN109957420 A CN 109957420A CN 201711336493 A CN201711336493 A CN 201711336493A CN 109957420 A CN109957420 A CN 109957420A
- Authority
- CN
- China
- Prior art keywords
- mineral oil
- waste
- waste mineral
- preprocess method
- oil
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G53/00—Treatment of hydrocarbon oils, in the absence of hydrogen, by two or more refining processes
- C10G53/02—Treatment of hydrocarbon oils, in the absence of hydrogen, by two or more refining processes plural serial stages only
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G2300/00—Aspects relating to hydrocarbon processing covered by groups C10G1/00 - C10G99/00
- C10G2300/10—Feedstock materials
- C10G2300/1003—Waste materials
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G2300/00—Aspects relating to hydrocarbon processing covered by groups C10G1/00 - C10G99/00
- C10G2300/20—Characteristics of the feedstock or the products
- C10G2300/201—Impurities
Landscapes
- Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
- Lubricants (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The invention discloses a kind of preprocess methods of waste mineral oil, comprising the following steps: after S1. heats waste mineral oil, carries out cooling-sedimentation;And remove the impurity settled out；S2. it is centrifuged using centrifuge；It is filtered the liquid containing solid suspended impurity by porous filter material；S4. addition flocculant carries out flocculating regeneration；S5. waste oil is carried out re-refining processing；A series of problems that this method can not only generate to avoid decentralized processing, and this method is suitable for scale processing, therefore can get better environmental benefit, reduces regeneration cost, improves reconstituted product quality.
Description
Technical field
The invention belongs to environment protection fields, and in particular to a kind of preprocess method of waste mineral oil.
Background technique
Waste mineral oil is usually chronically at hot environment, or urged by impurity other than losing original excellent working performance
Oxidation can generate many substances for having serious harm to act on human body in waste mineral oil.As 3,4- BaP (
The polycyclic aromatic hydrocarbons such as PAH), they have strong carcinogenesis;Polycyclic aromatic hydrocarbon containing chlorine such as Polychlorinated biphenyls (PCB), to people
Body also has strong toxic action (more so to hepatic disorder).Also contain in waste mineral oil and is added to improve oil plant performance
Many heavy metal additives and containing chlorine, sulphur, phosphorus organic matter, these are all to have serious poison to ecological environment and life entity
The substance of evil property.
Therefore, it is necessary to one kind effectively to be pre-processed to waste mineral oil, convenient for the subsequent waste mineral oil re-refined
Preprocess method.
Summary of the invention
The object of the present invention is to provide one kind effectively to be pre-processed to waste mineral oil, convenient for it is subsequent re-refine it is useless
The preprocess method of mineral oil.
A kind of preprocess method of waste mineral oil of the invention, comprising the following steps: the following steps are included:
S1. after waste mineral oil being heated, cooling-sedimentation is carried out;And remove the impurity settled out；
S2. it is centrifuged using centrifuge；
It is filtered the liquid containing solid suspended impurity by porous filter material；
S4. addition flocculant carries out flocculating regeneration；
S5. waste oil is carried out re-refining processing.
Further, in step s1, before centrifuge separation, waste oil is heated to 50~60 DEG C；
Further, it in the step S3, is filtered using wire mesh, braided fabric, felt, millboard or filter paper；When filtering,
Waste oil is heated to 40~70 DEG C, and filter aid is added；
Further, in step S4, the flocculant is sodium carbonate, sulfuric acid, waterglass, zinc chloride or aluminium chloride；
Further, in step S5, the high impurity molecule of relative molecular mass in waste oil is settled out with propane hydrocarbon;It is dissolved using furfural
Aromatic hydrocarbons and polar substances are extracted, ash content product and additive are flocculated removing using small molecule alcohol ketone.
The beneficial effects of the present invention are: the preprocess method of waste mineral oil of the invention, it not only can be to avoid decentralized processing
A series of problems of generation, and this method is suitable for scale processing, therefore can get better environmental benefit, reduces again
This is generated, reconstituted product quality is improved.
Specific embodiment
The preprocess method of the waste mineral oil of the present embodiment, comprising the following steps: after S1. heats waste mineral oil, cooled down
Sedimentation;And remove the impurity settled out；The method separated using water, metal impurities etc. with the density difference of oil.Density contrast
Not bigger, it is easier to settle;Viscosity, the density of oil are bigger, settle more difficult.Therefore mink cell focus should be heated suitably,
Its viscosity and density are reduced to be conducive to settle.But heating temperature should not be too high, if more than 100 DEG C, not only oily easy oxygen
Change, color burn, quality is deteriorated, and water can boil, and be unfavorable for settling.So being generally advisable with 80~90 DEG C.Due to heavy
Drop tank is higher, and the time that impurity is deposited to tank bottom is longer, therefore jar is preferably devised to the low oblateness of diameter big height;
For the sedimentation for accelerating superfine small iron granules, permanent magnet and electromagnet can be installed additional in tank bottom.In sedimentation, it is cooled to 30
After~40 DEG C, moisture and impurity are released by the conical bottom of settling tank, and draws oil sample on sheet glass, seen under light
It examines, if it has been found that muddy or other machinery impurity, it is necessary to reheat, continue to settle.
S2. it is centrifuged using centrifuge；Utilize the method that density of fraction difference is separated in system.Difference exists
In sedimentation rely on be gravity and being centrifugated utilize be high speed rotation when the centrifugal force effect that generates.One radius is
0.09 m, revolving speed are in 4 000 r/min centrifuge, and the miscellaneous and oily separating rate of water is the 400 of free-falling velocity
Times.For common seperator (being relatively large in diameter, revolving speed is compared with slow, single treatment amount is big) and centrifuge, (diameter is smaller, turns
Speed is higher, processing is rapid), it can flexibly select according to actual needs.In terms of lubricating oil processing, centrifugal separator is carried out
Continuous net system application is extremely wide.In order to reduce the viscosity of oil, keeps the mobility of oil preferable, and promote the separation of grease, improve separation
Effect, before using centrifuge, reply sump oil is suitably heated, and is generally heated to 50~60 DEG C, also has to 70~80
DEG C.
It is filtered the liquid containing solid suspended impurity by porous filter material；It drives outstanding containing solid
The liquid of floating impurity makes the method for separation of solid and liquid by porous filter material.Filtering material has wire mesh, braided fabric, hair
Felt, millboard, filter paper etc., the component and drag size that can be removed as needed are selected.In general, filter paper, cardboard,
The filtering such as close weave duct is less than the average diameter for being filtered off particle;The filtering duct of felt, asbestos fibre etc. is then greater than quilt
Filter out the average diameter of particle.Impurity cannot be filtered off, as the waste oil in oil circuit breaker contains, there are many particle size of the gel
Carbonizable substance can almost penetrate all filter layers.In order to improve the rate of filtration, usually there are two types of methods: (1) heating (reduces
Oil plant viscosity increases mobility);(2) filter aid (usually carclazyte) is added, and (absorption fine impurities, are reduced to filter hole
The blocking in road).It is 40~70 DEG C for useless transformer oil filtration temperature.
S4. addition flocculant carries out flocculating regeneration；With the solid particle of colloidal dispersion in waste oil, simply with sedimentation, from
The heart, filters can not separate, and flocculant, which at this moment can be added, makes tiny colloidal solid be condensed into big particle, lead to
It crosses sedimentation or centrifugation achievees the purpose that separation.If the degree of metamorphism of oil is not deep, use condition is again less strict, can be simply
Using flocculated regeneration method.
Common flocculant has tertiary sodium phosphate, sodium carbonate, sulfuric acid, waterglass, zinc chloride, aluminium chloride etc..Wherein, sulfuric acid is
Most effective flocculant, but the waste oil that water content is greater than 1% cannot be used in;Tertiary sodium phosphate and sodium carbonate be suitable for it is rotten and
The not high oil of pollution level, if water content is greater than 5%, it is necessary to appropriate dosage.For acid flocculant, after separation decontamination,
Clay treatment must be used, or primary with alkaline flocculant reprocessing;It flocculates for alkalinity as sodium carbonate and waterglass
Agent must wash after use, to remove remaining a small amount of free alkali.In addition also have using organic flocculant, as PAM,
Alkyl quaternary amine etc., but higher cost, use are relatively fewer.
S5. waste oil is carried out re-refining processing；It is useless instead of sulfuric acid treatment using organic solvent in reprocessing process
Oil can reduce the pollution to environment in this way, be the important means of currently used pollution-free process for refining.
Using it is more such as: be settled out the high impurity of relative molecular mass in waste lubricating oil with propane small molecule hydrocarbon
(propane cannot dissolve the high substance of relative molecular mass to molecule, and can dissolve relative molecular mass in lube range
Hydrocarbon and smaller molecule hydrocarbon);Aromatic hydrocarbons and polar substances (similar person mixes) are extracted using the dissolution of furfural isopolarity solvent,
And small molecule alcohol ketone isopolarity solvent is used, so that ash content product and additive is flocculated removing etc..
Finally, it is stated that the above examples are only used to illustrate the technical scheme of the present invention and are not limiting, although referring to compared with
Good embodiment describes the invention in detail, those skilled in the art should understand that, it can be to skill of the invention
Art scheme is modified or replaced equivalently, and without departing from the objective and range of technical solution of the present invention, should all be covered at this
In the scope of the claims of invention.
Claims (5)
1. a kind of preprocess method of waste mineral oil, which comprises the following steps:
S1. after waste mineral oil being heated, cooling-sedimentation is carried out;And remove the impurity settled out；
S2. it is centrifuged using centrifuge；
It is filtered the liquid containing solid suspended impurity by porous filter material；
S4. addition flocculant carries out flocculating regeneration；
S5. waste oil is carried out re-refining processing.
2. the preprocess method of waste mineral oil according to claim 1, it is characterised in that: in step s1, in centrifugation point
From preceding, waste oil is heated to 50~60 DEG C；Settling the jar used is the low oblate tank body of diameter big height, and tank bottom installs additional
Permanent magnet or electromagnet.
3. the preprocess method of waste mineral oil according to claim 2, it is characterised in that: in the step S3, utilize gold
Belong to silk screen, braided fabric, felt, millboard or filter paper to be filtered；When filtering, waste oil is heated to 40~70 DEG C, and be added and help
Filtering agent.
4. the preprocess method of waste mineral oil according to claim 3, it is characterised in that: in step S4, the flocculant
For sodium carbonate, sulfuric acid, waterglass, zinc chloride or aluminium chloride.
5. the preprocess method of waste mineral oil according to claim 4, it is characterised in that: heavy with propane hydrocarbon in step S5
Form sediment the high impurity molecule of relative molecular mass in waste oil out;Aromatic hydrocarbons and polar substances are extracted using furfural dissolution, is used
Ash content product and additive are flocculated removing by small molecule alcohol ketone.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711336493.6A CN109957420A (en) | 2017-12-14 | 2017-12-14 | A kind of preprocess method of waste mineral oil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711336493.6A CN109957420A (en) | 2017-12-14 | 2017-12-14 | A kind of preprocess method of waste mineral oil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109957420A true CN109957420A (en) | 2019-07-02 |
Family
ID=67017694
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711336493.6A Pending CN109957420A (en) | 2017-12-14 | 2017-12-14 | A kind of preprocess method of waste mineral oil |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109957420A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110540876A (en) * | 2019-08-20 | 2019-12-06 | 佛山市富龙环保科技有限公司 | waste mineral oil decoloring and refining process and operation method thereof |
| CN111610316A (en) * | 2020-04-16 | 2020-09-01 | 浙江中博润滑油有限公司 | High-concentration transformer oil purity detection method |
| CN112920843A (en) * | 2021-01-29 | 2021-06-08 | 淮安星宇再生资源有限公司 | Waste mineral oil recovery and separation device and separation method thereof |
| CN114989861A (en) * | 2022-05-18 | 2022-09-02 | 余金珠 | Recycling system of waste mineral oil |
-
2017
- 2017-12-14 CN CN201711336493.6A patent/CN109957420A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110540876A (en) * | 2019-08-20 | 2019-12-06 | 佛山市富龙环保科技有限公司 | waste mineral oil decoloring and refining process and operation method thereof |
| CN111610316A (en) * | 2020-04-16 | 2020-09-01 | 浙江中博润滑油有限公司 | High-concentration transformer oil purity detection method |
| CN112920843A (en) * | 2021-01-29 | 2021-06-08 | 淮安星宇再生资源有限公司 | Waste mineral oil recovery and separation device and separation method thereof |
| CN114989861A (en) * | 2022-05-18 | 2022-09-02 | 余金珠 | Recycling system of waste mineral oil |
| CN114989861B (en) * | 2022-05-18 | 2024-02-09 | 梁山德润能源有限公司 | Recycling system of waste mineral oil |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109957420A (en) | A kind of preprocess method of waste mineral oil | |
| CN107879572B (en) | Treatment method of oily sludge | |
| US5141628A (en) | Method of cleaning and regenerating used oils | |
| CN101066818A (en) | Process of treating oil-bearing sewage for ternary combination flooding in oil field | |
| CA2690542C (en) | Oil-contaminated water reutilization system | |
| CN107963704B (en) | Multi-element flocculation settling agent for titanium-rich material acidolysis titanium liquid and preparation and use methods thereof | |
| CN104661969B (en) | A kind of polysaccharide microgel for removing water petrochina, petroleum product and metal ion and its using method (scheme) | |
| WO2013102679A1 (en) | Method and system for purification of produced water | |
| US4339330A (en) | Desalting method of fuel oil | |
| CN102827681A (en) | Waste hydraulic oil regeneration technology | |
| Bhatia et al. | Palm oil mill effluent pretreatment using Moringa oleifera seeds as an environmentally friendly coagulant: laboratory and pilot plant studies | |
| CN111359310B (en) | Modified filter material for treating petroleum sewage | |
| CN103865626B (en) | A kind of anacidity alkali reclaiming process of useless machinery oil | |
| CN103849455A (en) | Method of reproducing lightly-degraded lubricating oil | |
| Anifah et al. | Adsorption of oil and grease in wastewater using activated carbon derived from sewage sludge | |
| CN108993026A (en) | A kind of preparation method of water-oil separating filtrate | |
| CN105505551B (en) | A kind of electrochemical regeneration processing method of waste lubricating oil | |
| CN114702977A (en) | Method for treating oil sludge difficult to treat in electric desalting tank of petrochemical enterprise | |
| CN107555738B (en) | Pretreatment method of oil-containing scum | |
| Ali et al. | Adsorption of heavy metal from recovered base oil using zeolite | |
| US5458765A (en) | Process of drying and removing solids from waste oil | |
| CN110129122A (en) | A kind of purification method again with heat treating oil | |
| CN109231539A (en) | A kind of food and drink waste water oil removal treatment method | |
| Azman et al. | Polymer sorbent for mercury removal from aqueous solution | |
| CN115650361A (en) | Process for deeply separating oily wastewater |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20190702 |