CN101709235A - Method for preparing high-stability micro-emulsion diesel - Google Patents
Method for preparing high-stability micro-emulsion diesel Download PDFInfo
- Publication number
- CN101709235A CN101709235A CN 200910230054 CN200910230054A CN101709235A CN 101709235 A CN101709235 A CN 101709235A CN 200910230054 CN200910230054 CN 200910230054 CN 200910230054 A CN200910230054 A CN 200910230054A CN 101709235 A CN101709235 A CN 101709235A
- Authority
- CN
- China
- Prior art keywords
- diesel
- micro
- acid
- microwave
- stability
- 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.)
- Granted
Links
Landscapes
- Liquid Carbonaceous Fuels (AREA)
- Colloid Chemistry (AREA)
Abstract
The invention discloses a method for preparing high-stability micro-emulsion diesel. The method comprises the following steps: firstly putting a NaOH solution and a diesel sample in a microwave reactor, carrying out the microwave reaction at room temperature under the radiation power of 250-500 W, cooling, separating the liquid, taking the supernatant to prepare diesel treated by microwave alkali liquor, then mixing 5% of micro emulsifier and 85% of the diesel treated by microwave alkali liquor, and dripping 100% of water at room temperature. The invention firstly uses the microwave radiation under the stirring condition, and then carries out the micro-emulsion treatment on the obtained diesel to water-in-oil type reverse micelle, thereby greatly improving the stability of oil and stably storing the oil for more than one year without generating colloids and dregs.
Description
Technical field
The present invention relates to a kind of preparation method of micro-emulsion diesel, be specifically related to a kind of preparation method of high-stability micro-emulsion diesel, belong to the chemistry of fuel field.
Background technology
Refinery is through catalytic cracking resulting diesel component, because to have the non-hydrocarbons compound and the unsaturated hydrocarbons, particularly diolefine of a large amount of sulfur-bearings, nitrogen, oxygen be the component of easy oxidation in the hydro carbons.Sulfocompound, particularly small molecules mercaptan, thiophenol can promote the oxidation of HYDROCARBONS IN DIESEL OIL, are the initiators of diesel oil oxidation.Under the initiation of micro-non-hydrocarbon compound unsaturated hydro carbons particularly diolefine polymerization or condensation reaction take place easily generates colloid and insoluble sediment, the color and luster of diesel oil is constantly deepened, influence the transportation and the burning of diesel oil.And the colloid that generates and sediment can stop up diesel filter, form carbon deposit in the filter tip position, spray condition degenerates, engine consumption increases and environment is contaminated etc., also can make the engine cisco unity malfunction in the time of seriously.Therefore, the stability of diesel oil has caused scientific worker's very big concern.
The method that prior art solves diesel oil stability is to adopt hydrogenation technique, and is adding hindered phenol type antioxidant after the hydrofining in oil product.But this kind hydrogenation technique complexity, facility investment is big, the hydrogen source that expense is high and needs are expensive etc.Adopt the method for the raising diesel oil stability of non-hydrogen source that acid-alkali refining, solvent treatment, refining with adsorbents and use diesel oil stabilizing agent etc. are arranged.Acid-alkali refining can lose part diesel oil, and the problem of bringing waste residue to handle simultaneously also pollutes the environment; Solvent-refined cost is higher, and the solvent oil yield is relatively low; Though the refining with adsorbents cost is low, the loading capacity of sorbent material is limited, can not operate continuously, and often need regenerate to sorbent material.Also have the method for in oil product, adding diesel oil stabilizing agent, the recombiner that diesel oil stabilizing agent generally is made up of one or more additives such as oxidation inhibitor, dispersion agent, sanitas, metal passivators in addition.But adopt diesel oil stabilizing agent to exist use range limited, perhaps additive is to the toxic effect of environment, and perhaps use cost is crossed problems such as height.
Summary of the invention
The present invention provides a kind of stablizing to deposit 1 year for the problem of the less stable of the present clean diesel of solution, layering do not occur, does not produce the preparation method of precipitation and gelationus high-stability micro-emulsion diesel.
For achieving the above object, technical scheme of the present invention is as follows:
The preparation method of high-stability micro-emulsion diesel of the present invention comprises the steps:
(1) with NaOH solution and diesel samples NaOH solution: diesel samples=0.2-0.5 by volume, place microwave reactor, after carrying out microwave reaction 1-14min under the room temperature radiation power 250-500W, cooling 10～15min, separatory is got the upper strata and is the diesel oil that microwave alkali lye is handled;
(2) take by weighing the water of 5% micro-emulsifier, 85% step (1) gained diesel oil and 10% by weight percentage, micro-emulsifier is mixed stirring with diesel oil, room temperature drips water and promptly gets high-stability micro-emulsion diesel;
NaOH solution weight concentration is 0.5-5% described in the step (1), and described diesel samples is a catalytic cracking diesel oil; Micro-emulsifier described in the step (2) is made up of the alkali lye of 75-80% organic acid, 10-15%, the nonionogenic tenside of 5-7% and the middle long-chain alcohol analog assistant of 2-5% by weight percentage.
Preferably the organic acid in the described micro-emulsifier of step (2) is C
8-C
18Monocarboxylic acid or di-carboxylic acid, comprise sad, suberic acid, n-capric acid, positive laurostearic acid, positive TETRADECONIC ACID, positive palmitic acid or oleic acid, alkali lye is that the aqueous solution, the weight concentration of sodium hydroxide or potassium hydroxide is 20-40%, nonionogenic tenside is polyisobutene succinic diamide or polyoxyethylene polyoxypropylene block copolymer, and middle long-chain alcohol analog assistant is propyl carbinol, Pentyl alcohol or n-hexyl alcohol.
Adopt earlier among the present invention and stir microwave radiation down, further reduce naphthenic acid and small molecules mercaptan in the oil product fully, thiophenols etc. can promote the initiator of the oxidation of HYDROCARBONS IN DIESEL OIL, and then the diesel oil that obtains is carried out microemulsified handle, owing to can form the water-in-oil-type reverse micelle behind the microemulsified, have ideal chemical thermodynamics stability, can improve the stability of oil product greatly, can stablize and deposit more than 1 year and do not produce colloid or sediment.
Embodiment
Embodiment 1
Measure the catalytic cracking diesel oil of 1000ml and the 1wt%NaOH solution of 250ml, place microwave reactor, after carrying out microwave reaction 5min under the room temperature radiation power 375W, cooling 10～15min, separatory is got the upper strata and is the diesel oil that microwave alkali lye is handled, take by weighing 40g n-capric acid, 5g weight concentration 40%NaOH solution, 3.5g polyisobutene succinic diamide and 1.5g propyl carbinol then, behind the uniform mixing it is added to mix in the diesel oil that 850g microwave alkali lye handles and stir, keep stirring and under room temperature, slowly drip 100g water and promptly get high-stability micro-emulsion diesel of the present invention.
Embodiment 2
Measure the catalytic cracking diesel oil of 1000ml and the 2wt%NaOH solution of 200ml, place microwave reactor, after carrying out microwave reaction 10min under the room temperature radiation power 300W, cooling 10～15min, separatory is got the upper strata and is the diesel oil that microwave alkali lye is handled, take by weighing the 37.5g suberic acid then, 7.5g weight concentration 35%NaOH solution, the slow 100g of dropping water promptly gets high-stability micro-emulsion diesel of the present invention under room temperature 2.5g mixing stirring in the diesel oil of behind polyoxyethylene polyoxypropylene block copolymer and the 2.5g Pentyl alcohol uniform mixing its adding 850g microwave alkali lye being handled, maintenance are stirred.
Embodiment 3
Measure the catalytic cracking diesel oil of 1000ml and the 5wt%NaOH solution of 500ml, place microwave reactor, after carrying out microwave reaction 5min under the room temperature radiation power 500W, cooling 10～15min, separatory is got the upper strata and is the diesel oil that microwave alkali lye is handled, take by weighing then behind 39.05g oleic acid, 6.25g weight concentration 20%NaOH solution, 3.15g polyisobutene succinic diamide and the 1.55g n-hexyl alcohol uniform mixing it to be added mix in the diesel oil that 850g microwave alkali lye handles and stir, keep stirring and under room temperature, slowly drip 100g water and promptly get high-stability micro-emulsion diesel of the present invention.
Claims (2)
1. the preparation method of a high-stability micro-emulsion diesel is characterized in that comprising the steps:
(1) with NaOH solution and diesel samples NaOH solution: diesel samples=0.2-0.5 by volume, place microwave reactor, after carrying out microwave reaction 1-14min under the room temperature radiation power 250-500W, cooling 10～15min, separatory is got the upper strata and is the diesel oil that microwave alkali lye is handled;
(2) take by weighing the water of 5% micro-emulsifier, 85% step (1) gained diesel oil and 10% by weight percentage, micro-emulsifier is mixed stirring with diesel oil, room temperature drips water and promptly gets high-stability micro-emulsion diesel;
NaOH solution weight concentration is 0.5-5% described in the step (1), and described diesel samples is a catalytic cracking diesel oil; Micro-emulsifier described in the step (2) is made up of the alkali lye of 75-80% organic acid, 10-15%, the nonionogenic tenside of 5-7% and the middle long-chain alcohol analog assistant of 2-5% by weight percentage.
2. according to the preparation method of the described high-stability micro-emulsion diesel of claim 1, it is characterized in that the organic acid in the described micro-emulsifier of step (2) is C
8-C
18Monocarboxylic acid or di-carboxylic acid, comprise sad, suberic acid, n-capric acid, positive laurostearic acid, positive TETRADECONIC ACID, positive palmitic acid or oleic acid, alkali lye is that the aqueous solution, the weight concentration of sodium hydroxide or potassium hydroxide is 20-40%, nonionogenic tenside is polyisobutene succinic diamide or polyoxyethylene polyoxypropylene block copolymer, and middle long-chain alcohol analog assistant is propyl carbinol, Pentyl alcohol or n-hexyl alcohol.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910230054 CN101709235B (en) | 2009-11-11 | 2009-11-11 | Method for preparing high-stability micro-emulsion diesel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910230054 CN101709235B (en) | 2009-11-11 | 2009-11-11 | Method for preparing high-stability micro-emulsion diesel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101709235A true CN101709235A (en) | 2010-05-19 |
| CN101709235B CN101709235B (en) | 2012-12-05 |
Family
ID=42402041
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200910230054 Active CN101709235B (en) | 2009-11-11 | 2009-11-11 | Method for preparing high-stability micro-emulsion diesel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101709235B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103642548A (en) * | 2013-12-25 | 2014-03-19 | 济南开发区星火科学技术研究院 | Micro-emulsified diesel oil |
| CN103805299A (en) * | 2014-03-13 | 2014-05-21 | 黑龙江省能源环境研究院 | Methyl alcohol emulsified diesel oil and preparation method thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1100855C (en) * | 1999-05-17 | 2003-02-05 | 曹成云 | Diesel oil additive and diesel product added with said additive |
-
2009
- 2009-11-11 CN CN 200910230054 patent/CN101709235B/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103642548A (en) * | 2013-12-25 | 2014-03-19 | 济南开发区星火科学技术研究院 | Micro-emulsified diesel oil |
| CN103642548B (en) * | 2013-12-25 | 2015-11-18 | 济南开发区星火科学技术研究院 | A kind of micro emulsion diesel fuel |
| CN103805299A (en) * | 2014-03-13 | 2014-05-21 | 黑龙江省能源环境研究院 | Methyl alcohol emulsified diesel oil and preparation method thereof |
| CN103805299B (en) * | 2014-03-13 | 2015-06-03 | 黑龙江省能源环境研究院 | Methyl alcohol emulsified diesel oil and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101709235B (en) | 2012-12-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102513163B (en) | Water-soluble catalytic cracking metal passivator and preparation method thereof | |
| CN101519239B (en) | Coking wastewater treatment agent and use method thereof | |
| Tang et al. | Deep desulfurization of condensate gasoline by electrochemical oxidation and solvent extraction | |
| CN101709235B (en) | Method for preparing high-stability micro-emulsion diesel | |
| CN107574011A (en) | A kind of regeneration treating method of the complexing UF membrane hydrogenation fractionating of waste lubricating oil | |
| CN101875853B (en) | Non-hydrogenation refining method for coking waxy oil | |
| CN106084225A (en) | A kind of heavy metal chelant and preparation method thereof | |
| JP2020026522A (en) | Method for producing petroleum-based needle coke raw material by using hydrogenation of aromatic compound | |
| CN103910596A (en) | Full fraction crude benzene hydrogenation method and catalyst | |
| CN107235529B (en) | Oil removal agent for oil-containing sewage treatment of oil field and preparation method thereof | |
| CN102974400A (en) | Catalytic cracking double-metal deactivator | |
| CN102660320A (en) | Antichlor and preparation method thereof | |
| CN110055096A (en) | The method for reducing the method and its system and residual hydrogenation of tenor in residual oil | |
| CN102329689B (en) | Additive and process for regeneration of waste oil for automobile engine | |
| CN108753345A (en) | A kind of delayed coking raw material and its preprocess method and petroleum coke and preparation method thereof | |
| CN104178767B (en) | A kind of coking chemical waste water pyrolysis coal gas corrosion inhibiter and preparation method thereof | |
| CN104016824A (en) | Whole-fraction crude benzene hydrogenation method and catalyst | |
| CN110841723A (en) | Preparation process of bimetal passivator | |
| CN1583960A (en) | Activating additive for delayed coking and cracking heavy oil and preparing method thereof | |
| CN103937531A (en) | Chemical pretreatment agent and pretreatment method for coal tar | |
| CN106700085B (en) | A kind of processing coal tar used additives and preparation method thereof | |
| CN103232854A (en) | Technology for complex denitrification of coker gas oil | |
| CN108707470B (en) | Oil demetallization agent and preparation method and application thereof | |
| CN203530281U (en) | Device for refining biodiesel by palm oil residues and acid oil | |
| CN102909078B (en) | Non-metallic material chemical plating high-activity palladium catalyst concentrated solution and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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 |