CN1242017C - Emulsion breaker for alkali residue of emulsified diesel and use method thereof - Google Patents
Emulsion breaker for alkali residue of emulsified diesel and use method thereof Download PDFInfo
- Publication number
- CN1242017C CN1242017C CN 01130554 CN01130554A CN1242017C CN 1242017 C CN1242017 C CN 1242017C CN 01130554 CN01130554 CN 01130554 CN 01130554 A CN01130554 A CN 01130554A CN 1242017 C CN1242017 C CN 1242017C
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- CN
- China
- Prior art keywords
- emulsified diesel
- diesel oil
- alkali
- caustic sludge
- emulsion splitter
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Abstract
The present invention discloses a demulsifying agent which is suitable for the caustic sludge of emulsified diesel oil, which is characterized in that the pH value of effluent brine is controlled between four and seven, and the effluent brine is obtained after sulfuric acid is added to gasoline caustic sludge to carry out a neutralization reaction. An application method for the demulsifying agent comprises: 10 to 50 wt% of demulsifying agent is added to the caustic sludge of emulsified diesel oil; emulsion breaking and layer separation are carried out after the mixture is thoroughly mixed at the temperature of 30 to 80 DEG C and is statically placed for1 to 10 hours; the layer separation of oil and water is clear, and waste alkali water and diesel oil are separated out. The gasoline caustic sludge is used as a raw material for carrying out acid base neutralization to obtain the demulsifying agent, and the demulsifying agent applied to the emulsion breaking of the caustic sludge of the emulsified diesel oil has a favorable effect on the emulsion breaking of the caustic sludge of the emulsified diesel oil. Thereby, the purposes of using waste to treat the waste and changing the waste into valuables are obtained, and the environmental pollution is reduced.
Description
One, technical field:
The present invention relates to the emulsion splitter and the using method thereof of alkali residue of emulsified diesel.
Two, background technology:
Along with oil variety that refinery refines in recent years increases, oil property changes greatly.Especially naphthenic acid content increases in the crude oil, and normal pressure two wires diesel oil soda finishing process because the emulsifying effect of sodium napthionate, makes oil, emulsifying water serious, the dehydration difficulty, and diesel oil is difficult to qualified dispatching from the factory.The consumption of alkali is increased, efflux diesel alkaline residue and be emulsus, a large amount of bands are oily, both influenced the yield and the qualification rate of lightweight oil, also caused environmental pollution.When handling this part alkali residue of emulsified diesel, if take the emulsion splitter breakdown of emulsion that suits, reclaim lightweight oil again, then the independent acidification of the alkaline residue behind the breakdown of emulsion is obtained naphthenic acid, not only protected environment, also have good social benefit and economic benefit.
In alkali residue of emulsified diesel breakdown of emulsion in the past, often adopt organic emulsion splitter breakdown of emulsion, because alkaline residue character often changes, make the demulsification of organic emulsion splitter also not obvious, and the price of organic emulsion splitter is higher, production cost is increased.
Three, summary of the invention:
The invention provides the emulsion splitter and the using method thereof of alkali residue of emulsified diesel, this emulsion splitter mainly is that raw material carries out obtaining behind the acid-base neutralisation with the gasoline alkaline residue, thereby realizes the treatment of wastes with processes of wastes against one another, turns waste into wealth, and has reduced the pollution to environment.
The present invention is achieved in that a kind of emulsion splitter that is applicable to alkali residue of emulsified diesel, it is characterized in that in gasoline alkaline residue adding sulfuric acid and carries out resulting effluent brine after the neutralization reaction, and its pH value is controlled at 4 to 7.
In above-mentioned effluent brine, press the polyacrylamide of effluent brine weight adding 1 to 5ppm.
The using method of above-mentioned emulsion splitter is: add 10 to 50% emulsion splitter in alkali residue of emulsified diesel by weight percentage, under 30 to 80 ℃ temperature, behind thorough mixing, leave standstill breakdown of emulsion layering after 1 to 10 hour, the profit layering is clear, tells alkali waste water and diesel oil.
In the using method of above-mentioned emulsion splitter, in alkali waste water, add sulfuric acid and neutralize, pH value is controlled at 3 to 6, obtains naphthenic acid.
The present invention is that raw material carries out obtaining emulsion splitter behind the acid-base neutralisation with the gasoline alkaline residue, and this emulsion splitter is applied to the breakdown of emulsion of alkali residue of emulsified diesel, the alkali residue of emulsified diesel breakdown of emulsion is had good effect, realize the treatment of wastes with processes of wastes against one another, turn waste into wealth, and reduced pollution environment.
Five, embodiment:
The present invention is not subjected to the restriction of following embodiment.
Embodiment 1: gasoline alkaline residue obtains effluent brine after adding the sulfuric acid neutralization reaction, and its pH value is 7.Get 1 ton of effluent brine, join in 2 tons the alkali residue of emulsified diesel, 30 ℃ fully mix after, leave standstill 8 hours after, the profit layering is clear, tells alkali waste water and diesel oil.Add sulfuric acid in the alkali waste water, being neutralized to pH value is 5, can obtain naphthenic acid.
Embodiment 2: gasoline alkaline residue obtains effluent brine after adding the sulfuric acid neutralization reaction, and its pH value is 5.Get 1 ton of effluent brine and 1 gram polyacrylamide, mix, join in 5 tons the alkali residue of emulsified diesel, 50 ℃ fully mix after, leave standstill 3 hours after, the profit layering is clear, tells alkali waste water and diesel oil.Add sulfuric acid in the alkali waste water, being neutralized to pH value is 6, can obtain naphthenic acid.
Embodiment 3: gasoline alkaline residue obtains effluent brine after adding the sulfuric acid neutralization reaction, and its pH value is 4.Get 1 ton of effluent brine and 2 gram polyacrylamides, mix, join in 10 tons the alkali residue of emulsified diesel, 80 ℃ fully mix after, leave standstill 2 hours after, the profit layering is clear, tells alkali waste water and diesel oil.Add sulfuric acid in the alkali waste water, being neutralized to pH value is 3, can obtain naphthenic acid.
Embodiment 4: gasoline alkaline residue obtains effluent brine after adding the sulfuric acid neutralization reaction, and its pH value is 5.Get 1 ton of effluent brine and 5 gram polyacrylamides, mix, join in 10 tons the alkali residue of emulsified diesel, 60 ℃ fully mix after, leave standstill 3 hours after, the profit layering is clear, tells alkali waste water and diesel oil.Add sulfuric acid in the alkali waste water, being neutralized to pH value is 6, can obtain naphthenic acid.
Claims (4)
1. emulsion splitter that is applicable to alkali residue of emulsified diesel is characterized in that adding sulfuric acid and carries out resulting effluent brine after the neutralization reaction in gasoline alkaline residue, its pH value is controlled at 4 to 7.
2. emulsion splitter according to claim 1 is characterized in that in effluent brine adding by effluent brine weight 1 to 5ppm polyacrylamide.
3. the using method of an emulsion splitter according to claim 1 and 2, it is characterized in that in alkali residue of emulsified diesel, adding by weight percentage 10 to 50% emulsion splitter, under 30 to 80 ℃ temperature, behind thorough mixing, leave standstill breakdown of emulsion layering after 1 to 10 hour, the profit layering is clear, tells alkali waste water and diesel oil.
4. the using method of emulsion splitter according to claim 3 is characterized in that adding sulfuric acid and neutralizes in alkali waste water, and pH value is controlled at 3 to 6, obtains naphthenic acid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01130554 CN1242017C (en) | 2001-12-01 | 2001-12-01 | Emulsion breaker for alkali residue of emulsified diesel and use method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01130554 CN1242017C (en) | 2001-12-01 | 2001-12-01 | Emulsion breaker for alkali residue of emulsified diesel and use method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1358817A CN1358817A (en) | 2002-07-17 |
| CN1242017C true CN1242017C (en) | 2006-02-15 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01130554 Expired - Fee Related CN1242017C (en) | 2001-12-01 | 2001-12-01 | Emulsion breaker for alkali residue of emulsified diesel and use method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1242017C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101255350B (en) * | 2008-04-09 | 2012-04-04 | 山东大学 | Technique for comprehensive treatment of diesel oil alkaline residue by using circulating technology |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101255355B (en) * | 2008-04-09 | 2012-07-11 | 山东大学 | Preparation of diesel alkaline residue demulsifying agent and method of use thereof |
-
2001
- 2001-12-01 CN CN 01130554 patent/CN1242017C/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101255350B (en) * | 2008-04-09 | 2012-04-04 | 山东大学 | Technique for comprehensive treatment of diesel oil alkaline residue by using circulating technology |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1358817A (en) | 2002-07-17 |
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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: 20060215 Termination date: 20131201 |