CN100390252C - Method for refining poor diesel oil by using compound solvent - Google Patents
Method for refining poor diesel oil by using compound solvent Download PDFInfo
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- CN100390252C CN100390252C CNB200610043523XA CN200610043523A CN100390252C CN 100390252 C CN100390252 C CN 100390252C CN B200610043523X A CNB200610043523X A CN B200610043523XA CN 200610043523 A CN200610043523 A CN 200610043523A CN 100390252 C CN100390252 C CN 100390252C
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- diesel oil
- refining
- poor
- double solvents
- compound solvent
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Abstract
The present invention relates to a method for refining poor-quality diesel oil by using compound solvent, which belongs to the technical field of petrifaction. The present invention has the technical scheme that 0.07% of compound solvent corresponding to an oil sample is added in the oil sample of treated poor-quality diesel oil to be stirred for 30 minutes under normal temperature, a minute quantity of black sediment at the bottom is discharged after the oil sample and the compound solvent are statically settled for two hours, and the cut fraction of clear and transparent diesel oil without foreign odor is obtained. The color comparison reaches 2.0. the compound solvent is composed of furfural, carbinol, hexamethylene diamine and hypochlorite, wherein the ratio of the furfural to the carbinol to the hexamethylene diamine to the hypochlorite is from 70 to 15 to 10 to 5. The present invention solves the refining problem that the cut fraction of the poor-quality diesel oil is generated in the process of treating waste plastics, waste rubber and waste lubricating oil. The present invention has the advantages of simple processes, simple devices, low cost, less diesel oil loss and high extraction rate, is favorable to environmental protection, and solves the problem of fuel shortage to a certain extent.
Description
Technical field
The present invention relates to a kind of diesel oil distillate that from plastic waste, waste rubber, waste lubricating oil treating processes, generates and then from diesel oil distillate, extract the technology of oil fuel, be specially the method for double solvents of utilizing refining poor diesel oil.
Background technology
In the treating processes again (referring to extract oil fuel) of plastic waste, waste rubber, waste lubricating oil, the diesel oil distillate of generation because of sulfur-bearing, nitrogen compound and heterogeneous ring compound turn black, smelly, as further refining, can't be used as motor spirit.
Along with the day of petroleum-based energy is becoming tight, in recent years, the purification techniques of this part diesel oil distillate had also had very great development.Technology such as acid-alkali refining, clay-filtered or other solvent treatment have been developed in succession.Though these technology can be improved the quality of diesel oil distillate greatly, these technologies or producing a large amount of waste residues is difficult to handle, or diesel oil loss height, or complex process perhaps consume the solvent of larger amt, thereby cause the tooling cost height, reduce economic benefit.
Summary of the invention
Many deficiencies at above-mentioned prior art existence, the object of the present invention is to provide a kind of method of utilizing double solvents to refining poor diesel oil, this method can reduce solvent load, promptly under equal refining quality, reduce the consumption of solvent greatly, thereby reach by reducing solvent load, improve product yield, increase the purpose of economic benefit.
Technical scheme of the present invention is to add the double solvents of relative oil sample 0.07% in processed poor ignition quality fuel oil sample, stirring at normal temperature 30min, behind the standing sedimentation 2h, discharge a spot of black sediment of bottom, obtain limpid, transparent, free from extraneous odour diesel oil distillate, colorimetric can reach 2.0; Double solvents consist of furfural: methyl alcohol: hexanediamine: hypochlorite=70: 15: 10: 5.
Poor ignition quality fuel and double solvents are stored in respectively in head tank and the solvent tank, pump in the refining kettle by feedstock pump and solvent pump respectively according to suitable proportion, by the agitator in the refining kettle raw material and double solvents are mixed, behind the standing sedimentation, by the still bottom valve black residue of minute quantity is discharged, obtain limpid, transparent, free from extraneous odour, colorimetric can reach 2.0 diesel oil distillate, the product after refining is extracted out by product pump.
Both diesel product can be done separately through the diesel oil distillate after the double solvents refinement treatment, also diesel oil blending component can be done.
The present invention utilizes the oxygenizement of oxygenant in the double solvents with sulphur, nitrogen compound oxidative decoloration dark in the poor ignition quality fuel; Utilize furfural in the double solvents to the difference of different components solubleness in the poor ignition quality fuel with polycyclic, contain heteroatomic, dark compound dissolution, again according to furfural and diesel oil density variation, with diesel oil and the separated from solvent after refining.
The invention has the beneficial effects as follows: utilize the oxidation, complexing of different components in the double solvents and to factors such as heterogeneity different solubilities in the oil sample, to poor ignition quality fuel decolour, deodorization, reach refining purpose.This invented technology is simple, and equipment is simple, cost is low, and double solvents is by 8000～10000 yuan/ton, and solvent cost is 5.6～7 yuan of/ton poor ignition quality fuels only, well below common solvent purified solvent cost (20～30 yuan/ton) in the market.Diesel oil loss simultaneously is few, the extraction yield height.
Description of drawings
Accompanying drawing is a process diagram of the present invention.
Embodiment
In conjunction with the accompanying drawings, below the process description:
Poor ignition quality fuel and double solvents are stored in respectively in head tank and the solvent tank, pump in the refining kettle by feedstock pump and solvent pump respectively according to suitable proportion, the amount that pumps into double solvents at identical time internal solvent pump be feedstock pump pump into the poor ignition quality fuel amount 0.07%, by the agitator in the refining kettle raw material and double solvents are mixed, behind the standing sedimentation 2h, by the still bottom valve black residue of minute quantity is discharged, obtain limpid, transparent, free from extraneous odour, colorimetric can reach 2.0 diesel oil distillate, the product after refining is extracted out by product pump.
Double solvents consist of furfural: methyl alcohol: hexanediamine: hypochlorite=70: 15: 10: 5.
More than amount is than being volume ratio.
Claims (2)
1. method of utilizing double solvents to refining poor diesel oil, it is characterized in that, the double solvents that in processed poor ignition quality fuel, adds relative oil sample 0.07%, stirring at normal temperature 30min, behind the standing sedimentation 2h, discharge a spot of black sediment of bottom, obtain limpid, transparent, free from extraneous odour, colorimetric can reach 2.0 diesel oil distillate; Double solvents consist of furfural: methyl alcohol: hexanediamine: hypochlorite=70: 15: 10: 5.
2. a kind of method of utilizing double solvents to refining poor diesel oil according to claim 1, it is characterized in that, poor ignition quality fuel and double solvents are stored in respectively in head tank and the solvent tank, and pump in the refining kettle by feedstock pump and solvent pump respectively, by the agitator in the refining kettle raw material and double solvents are mixed, behind the standing sedimentation, by the still bottom valve black residue of minute quantity is discharged, obtain limpid, transparent, free from extraneous odour, colorimetric can reach 2.0 diesel oil distillate, the product after refining is extracted out by product pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200610043523XA CN100390252C (en) | 2006-04-11 | 2006-04-11 | Method for refining poor diesel oil by using compound solvent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200610043523XA CN100390252C (en) | 2006-04-11 | 2006-04-11 | Method for refining poor diesel oil by using compound solvent |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1827745A CN1827745A (en) | 2006-09-06 |
| CN100390252C true CN100390252C (en) | 2008-05-28 |
Family
ID=36946301
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB200610043523XA Expired - Fee Related CN100390252C (en) | 2006-04-11 | 2006-04-11 | Method for refining poor diesel oil by using compound solvent |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100390252C (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1197834A (en) * | 1997-04-25 | 1998-11-04 | 清华大学 | Process for refining of diesel oil by solvent extraction of catalytic diesel oil to denitrify |
-
2006
- 2006-04-11 CN CNB200610043523XA patent/CN100390252C/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1197834A (en) * | 1997-04-25 | 1998-11-04 | 清华大学 | Process for refining of diesel oil by solvent extraction of catalytic diesel oil to denitrify |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1827745A (en) | 2006-09-06 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080528 Termination date: 20100411 |