CN104593107A - Preparation process for microemulsified diesel oil - Google Patents
Preparation process for microemulsified diesel oil Download PDFInfo
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- CN104593107A CN104593107A CN201410759579.XA CN201410759579A CN104593107A CN 104593107 A CN104593107 A CN 104593107A CN 201410759579 A CN201410759579 A CN 201410759579A CN 104593107 A CN104593107 A CN 104593107A
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- diesel oil
- micro emulsion
- diesel fuel
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Abstract
The invention relates to a preparation process for microemulsified diesel oil. The raw materials include, by mass, 60-77% of 0# diesel oil, 5-12% of a compound emulsifier, 4-10% of n-butanol, and 10-20% of water. The compound emulsifier is a mixture of sodium heavy alkyl benzene sulfonate, sodium dodecyl benzene sulfonate and 2-(pentadecanoyloxy)ethanesulfonic acid ester. The preparation process includes: adding the compound emulsifier into water, conducting stirring till complete dissolution, under ultrasonic condition, adding the product into a mixed solution of diesel oil and n-butanol dropwise, and after complete adding, conducting ultrasonic treatment, thus obtaining the microemulsified diesel oil. The process is simple. The prepared microemulsified diesel oil is transparent, has viscosity, flash point and condensation point similar to ordinary diesel oil, has stable time for over 6 months, and is convenient for storage and transportation. The price of the microemulsified diesel oil is lower than ordinary diesel oil on the market, can be used as commercial diesel oil, and has good economic benefits.
Description
Technical field
The invention belongs to technical field of emulsification diesel fuel.Be specifically related to a kind of preparation technology of micro emulsion diesel fuel.
Background technology
Since over half a century, along with the develop rapidly of human society modernization, the energy is day by day exhausted, and environmental pollution is on the rise, and explores new forms of energy and improves to meet the development trend that people's demand growing to the energy has become certainty to the existing energy.Fuel water know-why is that the mixing milk sap of fuel oil and water can produce effect of micro-explosion when burning, and causes the secondary-atomizing of fuel oil, makes oil inflame more abundant, greatly can reduce the discharge of obnoxious flavour.Micro emulsion diesel fuel also has good flame retardant effect, effectively can reduce propagation of flame tendency, make the use procedure of panzer, agricultural vehicle and engineering machinery safer.The security of micro emulsion diesel fuel and the feature of energy-saving and pollution-reducing facilitate the fast development of micro emulsion diesel fuel research.
The eighties in 20th century, technology for mixing water in diesel obtains breakthrough, and the preparation technology of micro emulsion diesel fuel is a lot, comprise high speed shear technology, static mixer hybrid technology and ultrasonic emulsification technology etc., the micro emulsion diesel fuel emulsifying agent seeing report at present comprises cationic surfactant, aniorfic surfactant and nonionic surface active agent, such as SDS, DPC, ATO, LDEA, Span-20, Span-80, Tween-80 and CTAB etc.But prepare micro emulsion diesel fuel emulsifying agent price used and emulsifier relatively high, cause the economic benefit of micro emulsion diesel fuel and not obvious (Zhou Yawen etc. Fuel Microemulsion Technology and progress thereof. chemistry world the 6th phase in 2004).
Summary of the invention
In order to solve prior art Problems existing, the invention provides a kind of preparation technology of micro emulsion diesel fuel.The method is that a kind of technique is simple, cost is low, the preparation technology of eco-friendly micro emulsion diesel fuel.Prepared micro emulsion diesel fuel is transparent, steady time long, environmental friendliness, and can use as commercial Dissel oil.
The preparation technology of a kind of micro emulsion diesel fuel provided by the invention, comprising: the raw material of micro emulsion diesel fuel prepared by (1) and mass percent as follows:
0# diesel oil: 60-77%;
Composite emulsifier: 5-12%;
Propyl carbinol: 4-10%;
Water: 10-20%;
The sodium heavy alkyl benzene sulfonate of described composite emulsifier to be mass ratio be 8:1:1, Sodium dodecylbenzene sulfonate and 2-(pentadecyl oxo group) mixture of esilate;
(2) step prepared and condition as follows: according to above-mentioned raw materials and mass percent, first composite emulsifier is added to the water, at room temperature through be stirred to completely dissolve after, be added drop-wise to and be placed in the diesel oil of ultrasonic device and the mixing solutions of propyl carbinol
,dripping molten speed is 0.15-1.0mL/min, after dripping, then continues ultrasonic 30-60min, and ultrasonic frequency is 40KHz, and power is 200-350W, obtains micro emulsion diesel fuel.
beneficial effect:the preparation technology of a kind of micro emulsion diesel fuel provided by the invention, simply, microemulsified bavin cost is cheaper, and oil price lattice lower than market ordinary diesel oil, and can use as commercial Dissel oil, have good economic benefit for its step prepared and condition.
Micro emulsion diesel fuel combustionproperty prepared by the present invention is good, and viscosity, flash-point, condensation point are similar to ordinary diesel oil, than ordinary diesel oil safety.
The composite emulsifier sodium heavy alkyl benzene sulfonate that micro emulsion diesel fuel prepared by the present invention is used and 2-(pentadecyl oxo group) esilate have no so far report for micro emulsion diesel fuel, wherein sodium heavy alkyl benzene sulfonate price is lower, is conducive to the reduction of micro emulsion diesel fuel production cost; And 2-(pentadecyl oxo group) esilate is by C
14lipid acid and sodium isethionate are prepared from, the alkyl chain length of these two kinds of emulsifying agents and the close of diesel oil, the emulsifying effectiveness that expection can improve diesel oil.
Use these two kinds of tensio-active agents and the composite micro emulsion diesel fuel prepared as composite emulsifier of Sodium dodecylbenzene sulfonate is transparent, steady time is long, prepared micro emulsion diesel fuel Absorbable organic halogens places more than 6 months, is convenient to storage and transport.Because water solubilization controls below 20%, in use procedure, corrosion can not be caused to engine, and effectively can reduce the pollution of exhaust emissions to environment; And also pollution-free in preparation process, be a kind of environmentally friendly preparation technology.
Embodiment
embodiment 1a preparation technology for micro emulsion diesel fuel, comprising: the raw material of micro emulsion diesel fuel prepared by (1) and mass percent as follows:
0# diesel oil: 60%;
Composite emulsifier: 10%;
Propyl carbinol: 10%;
Water: 20%;
The sodium heavy alkyl benzene sulfonate of described composite emulsifier to be mass ratio be 8:1:1, Sodium dodecylbenzene sulfonate and 2-(pentadecyl oxo group) mixture of esilate;
Step and the condition of preparation are as follows: according to said components and mass percent, first composite emulsifier is added to the water, after being stirred to and dissolving completely, room temperature, frequency is 40KHz, and power is under the ultrasound condition of 350W, is added drop-wise in diesel oil and propyl carbinol mixed solution, the speed dripped is 0.15mL/min, drips complete follow-up continuous ultrasonic 30min; Obtain micro emulsion diesel fuel.
After measured, the property indices of the micro emulsion diesel fuel of preparation is as following table:
| Outward appearance | Kinematic viscosity (20 DEG C)/(mm 2/s) | Condensation point/DEG C | Close flash point/DEG C |
| Light yellow transparent liquid | 7.860 | -6 | 62 |
embodiment 2a preparation technology for micro emulsion diesel fuel, comprising: the raw material of micro emulsion diesel fuel prepared by (1) and mass percent as follows:
0# diesel oil: 77%;
Composite emulsifier: 9%;
Propyl carbinol: 4%;
Water: 10%;
The sodium heavy alkyl benzene sulfonate of described composite emulsifier to be mass ratio be 8:1:1, Sodium dodecylbenzene sulfonate and 2-(pentadecyl oxo group) mixture of esilate;
Step and the condition of preparation are as follows: according to said components and mass percent, first composite emulsifier is added to the water, after being stirred to and dissolving completely, room temperature, frequency is 40KHz, and power is under the ultrasound condition of 300W, is added drop-wise in diesel oil and propyl carbinol mixed solution, the speed dripped is 0.15mL/min, drips complete follow-up continuous ultrasonic 40min; Obtain micro emulsion diesel fuel.
After measured, the property indices of the micro emulsion diesel fuel of preparation is as following table:
| Outward appearance | Kinematic viscosity (20 DEG C)/(mm 2/s) | Condensation point/DEG C | Close flash point/DEG C |
| Light yellow transparent liquid | 7.234 | -5 | 68 |
embodiment 3a preparation technology for micro emulsion diesel fuel, comprising: the raw material of micro emulsion diesel fuel prepared by (1) and mass percent as follows:
0# diesel oil: 72%;
Composite emulsifier: 11%;
Propyl carbinol: 7%;
Water: 10%;
The sodium heavy alkyl benzene sulfonate of described composite emulsifier to be mass ratio be 8:1:1, Sodium dodecylbenzene sulfonate and 2-(pentadecyl oxo group) mixture of esilate;
Step and the condition of preparation are as follows: according to said components and mass percent, first composite emulsifier is added to the water, after being stirred to and dissolving completely, room temperature, frequency is 40KHz, and power is under the ultrasound condition of 250W, is added drop-wise in diesel oil and propyl carbinol mixed solution, the speed dripped is 0.15mL/min, drips complete follow-up continuous ultrasonic 40min; Obtain micro emulsion diesel fuel.
After measured, the property indices of the micro emulsion diesel fuel of preparation is as following table:
| Outward appearance | Kinematic viscosity (20 DEG C)/(mm 2/s) | Condensation point/DEG C | Close flash point/DEG C |
| Light yellow transparent liquid | 7.387 | -7 | 63 |
embodiment 4a preparation technology for micro emulsion diesel fuel, comprising: the raw material of micro emulsion diesel fuel prepared by (1) and mass percent as follows:
0# diesel oil: 67%;
Composite emulsifier: 12%;
Propyl carbinol: 8%;
Water: 13%;
The sodium heavy alkyl benzene sulfonate of described composite emulsifier to be mass ratio be 8:1:1, Sodium dodecylbenzene sulfonate and 2-(pentadecyl oxo group) mixture of esilate;
Step and the condition of preparation are as follows: according to said components and mass percent, first composite emulsifier is added to the water, after being stirred to and dissolving completely, room temperature, frequency is 40KHz, and power is under the ultrasound condition of 300W, is added drop-wise in diesel oil and propyl carbinol mixed solution, the speed dripped is 0.15mL/min, drips complete follow-up continuous ultrasonic 30min; Obtain micro emulsion diesel fuel.
After measured, the property indices of the micro emulsion diesel fuel of preparation is as following table:
| Outward appearance | Kinematic viscosity (20 DEG C)/(mm 2/s) | Condensation point/DEG C | Close flash point/DEG C |
| Light yellow transparent liquid | 7.956 | -7 | 69 |
embodiment 5the preparation technology of one one kinds of micro emulsion diesel fuels, comprising: the raw material of micro emulsion diesel fuel prepared by (1) and mass percent as follows:
0# diesel oil: 70%;
Composite emulsifier: 11%;
Propyl carbinol: 4%;
Water: 15%;
The sodium heavy alkyl benzene sulfonate of described composite emulsifier to be mass ratio be 8:1:1, Sodium dodecylbenzene sulfonate and 2-(pentadecyl oxo group) mixture of esilate;
Step and the condition of preparation are as follows: according to said components and mass percent, first composite emulsifier is added to the water, after being stirred to and dissolving completely, room temperature, frequency is 40KHz, and power is under the ultrasound condition of 350W, is added drop-wise in diesel oil and propyl carbinol mixed solution, the speed dripped is 0.15mL/min, drips complete follow-up continuous ultrasonic 60min; Obtain micro emulsion diesel fuel.
After measured, the property indices of the micro emulsion diesel fuel of preparation is as following table:
| Outward appearance | Kinematic viscosity (20 DEG C)/(mm 2/s) | Condensation point/DEG C | Close flash point/DEG C |
| Light yellow transparent liquid | 7.616 | -8 | 69 |
embodiment 6a preparation technology for micro emulsion diesel fuel, comprising: the raw material of micro emulsion diesel fuel prepared by (1) and mass percent as follows:
0# diesel oil: 70%;
Composite emulsifier: 12%;
Propyl carbinol: 8.0%;
Water: 10%;
The sodium heavy alkyl benzene sulfonate of described composite emulsifier to be mass ratio be 8:1:1, Sodium dodecylbenzene sulfonate and 2-(pentadecyl oxo group) mixture of esilate;
Step and the condition of preparation are as follows: according to said components and mass percent, first composite emulsifier is added to the water, after being stirred to and dissolving completely, room temperature, frequency is 40KHz, and power is under the ultrasound condition of 300W, is added drop-wise in diesel oil and propyl carbinol mixed solution, the speed dripped is 0.15mL/min, drips complete follow-up continuous ultrasonic 30min; Obtain micro emulsion diesel fuel.
After measured, the property indices of the micro emulsion diesel fuel of preparation is as following table:
| Outward appearance | Kinematic viscosity (20 DEG C)/(mm 2/s) | Condensation point/DEG C | Close flash point/DEG C |
| Light yellow transparent liquid | 7.531 | -7 | 62 |
embodiment 7the preparation technology of one one kinds of micro emulsion diesel fuels, comprising: the raw material of micro emulsion diesel fuel prepared by (1) and mass percent as follows:
0# diesel oil: 63%;
Composite emulsifier: 10%;
Propyl carbinol: 7%;
Water: 20%;
The sodium heavy alkyl benzene sulfonate of described composite emulsifier to be mass ratio be 8:1:1, Sodium dodecylbenzene sulfonate and 2-(pentadecyl oxo group) mixture of esilate;
Step and the condition of preparation are as follows: according to said components and mass percent, first composite emulsifier is added to the water, after being stirred to and dissolving completely, room temperature, frequency is 40KHz, and power is under the ultrasound condition of 250W, is added drop-wise in diesel oil and propyl carbinol mixed solution, the speed dripped is 0.15mL/min, drips complete follow-up continuous ultrasonic 40min; Obtain micro emulsion diesel fuel.
After measured, the property indices of the micro emulsion diesel fuel of preparation is as following table:
| Outward appearance | Kinematic viscosity (20 DEG C)/(mm 2/s) | Condensation point/DEG C | Close flash point/DEG C |
| Light yellow transparent liquid | 7.477 | -8 | 67 |
embodiment 8a preparation technology for micro emulsion diesel fuel, comprising: the raw material of micro emulsion diesel fuel prepared by (1) and mass percent as follows:
0# diesel oil: 68%;
Composite emulsifier: 7%;
Propyl carbinol: 10%;
Water: 15%;
The sodium heavy alkyl benzene sulfonate of described composite emulsifier to be mass ratio be 8:1:1, Sodium dodecylbenzene sulfonate and 2-(pentadecyl oxo group) mixture of esilate;
Step and the condition of preparation are as follows: according to said components and mass percent, first composite emulsifier is added to the water, after being stirred to and dissolving completely, room temperature, frequency is 40KHz, and power is under the ultrasound condition of 350W, is added drop-wise in diesel oil and propyl carbinol mixed solution, the speed dripped is 0.15mL/min, drips complete follow-up continuous ultrasonic 30min; Obtain micro emulsion diesel fuel.
After measured, the property indices of the micro emulsion diesel fuel of preparation is as following table:
| Outward appearance | Kinematic viscosity (20 DEG C)/(mm 2/s) | Condensation point/DEG C | Close flash point/DEG C |
| Light yellow transparent liquid | 7.740 | -6 | 64 |
embodiment 9a preparation technology for micro emulsion diesel fuel, comprising: the raw material of micro emulsion diesel fuel prepared by (1) and mass percent as follows:
0# diesel oil: 75%;
Composite emulsifier: 10%;
Propyl carbinol: 5%;
Water: 10%;
The sodium heavy alkyl benzene sulfonate of described composite emulsifier to be mass ratio be 8:1:1, Sodium dodecylbenzene sulfonate and 2-(pentadecyl oxo group) mixture of esilate;
Step and the condition of preparation are as follows: according to said components and mass percent, first composite emulsifier is added to the water, after being stirred to and dissolving completely, room temperature, frequency is 40KHz, and power is under the ultrasound condition of 200W, is added drop-wise in diesel oil and propyl carbinol mixed solution, the speed dripped is 0.15mL/min, drips complete follow-up continuous ultrasonic 30min; Obtain micro emulsion diesel fuel.
After measured, the property indices of the micro emulsion diesel fuel of preparation is as following table:
| Outward appearance | Kinematic viscosity (20 DEG C)/(mm 2/s) | Condensation point/DEG C | Close flash point/DEG C |
| Light yellow transparent liquid | 7.324 | -8 | 68 |
embodiment 10a preparation technology for micro emulsion diesel fuel, comprising: the raw material of micro emulsion diesel fuel prepared by (1) and mass percent as follows:
0# diesel oil: 70%;
Composite emulsifier: 5%;
Propyl carbinol: 7%;
Water: 18%;
The sodium heavy alkyl benzene sulfonate of described composite emulsifier to be mass ratio be 8:1:1, Sodium dodecylbenzene sulfonate and 2-(pentadecyl oxo group) mixture of esilate;
Step and the condition of preparation are as follows: according to said components and mass percent, first composite emulsifier is added to the water, after being stirred to and dissolving completely, room temperature, frequency is 40KHz, and power is under the ultrasound condition of 300W, is added drop-wise in diesel oil and propyl carbinol mixed solution, the speed dripped is 0.15mL/min, drips complete follow-up continuous ultrasonic 30min; Obtain micro emulsion diesel fuel.
After measured, the property indices of the micro emulsion diesel fuel of preparation is as following table:
| Outward appearance | Kinematic viscosity (20 DEG C)/(mm 2/s) | Condensation point/DEG C | Close flash point/DEG C |
| Light yellow transparent liquid | 7.263 | -8 | 67 |
embodiment 11a preparation technology for micro emulsion diesel fuel, comprising: the raw material of micro emulsion diesel fuel prepared by (1) and mass percent as follows:
0# diesel oil: 74%;
Composite emulsifier: 10%;
Propyl carbinol: 6%;
Water: 10%;
The sodium heavy alkyl benzene sulfonate of described composite emulsifier to be mass ratio be 8:1:1, Sodium dodecylbenzene sulfonate and 2-(pentadecyl oxo group) mixture of esilate;
Step and the condition of preparation are as follows: according to said components and mass percent, first composite emulsifier is added to the water, after being stirred to and dissolving completely, room temperature, frequency is 40KHz, and power is under the ultrasound condition of 350W, is added drop-wise in diesel oil and propyl carbinol mixed solution, the speed dripped is 0.15mL/min, drips complete follow-up continuous ultrasonic 30min; Obtain micro emulsion diesel fuel.
After measured, the property indices of the micro emulsion diesel fuel of preparation is as following table:
| Outward appearance | Kinematic viscosity (20 DEG C)/(mm 2/s) | Condensation point/DEG C | Close flash point/DEG C |
| Light yellow transparent liquid | 7.723 | -6 | 69 |
embodiment 12a preparation technology for micro emulsion diesel fuel, the composition of employing divides and to measure per-cent as follows:
0# diesel oil: 76%;
Composite emulsifier: 7%;
Propyl carbinol: 5%;
Water: 12%;
The sodium heavy alkyl benzene sulfonate of described composite emulsifier to be mass ratio be 8:1:1, Sodium dodecylbenzene sulfonate and 2-(pentadecyl oxo group) mixture of esilate;
Step and the condition of preparation are as follows: according to said components and mass percent, first composite emulsifier is added to the water, after being stirred to and dissolving completely, room temperature, frequency is 40KHz, and power is under the ultrasound condition of 300W, is added drop-wise in diesel oil and propyl carbinol mixed solution, the speed dripped is 0.15mL/min, drips complete follow-up continuous ultrasonic 30min; Obtain micro emulsion diesel fuel.
After measured, the property indices of micro emulsion diesel fuel is as following table:
| Outward appearance | Kinematic viscosity (20 DEG C)/(mm 2/s) | Condensation point/DEG C | Close flash point/DEG C |
| Light yellow transparent liquid | 7.953 | -8 | 68 |
The bioassay standard of prepared micro emulsion diesel fuel physico-chemical property is as follows:
Method with reference to GB265-88 measures the kinematic viscosity of diesel oil microemulsion; The close flash point of diesel oil microemulsion is measured with reference to GB/T261-91 agar diffusion method of remaining silent; PSA-70X type freezing point, pour point, kryoscope is adopted to measure the condensation point of diesel oil microemulsion.Micro emulsion diesel fuel prepared by the present invention can reach more than 6 months steady time, and kinematic viscosity, condensation point and flash-point (remaining silent) meet state-set standard, have good oil saving and pollution reducing effect, can be used as commercial Dissel oil and uses.
Claims (1)
1. a preparation technology for micro emulsion diesel fuel, is characterized in that, raw material and the mass percent of the micro emulsion diesel fuel of preparation are as follows:
0# diesel oil: 60-77%;
Composite emulsifier: 5-12%;
Propyl carbinol: 4-10%;
Water: 10-20%;
Sodium heavy alkyl benzene sulfonate, the 2-(pentadecyl oxo group of described composite emulsifier to be mass ratio be 8:1:1) mixture of esilate and Sodium dodecylbenzene sulfonate;
Step and the condition of preparation are as follows: according to above-mentioned raw materials and mass percent, be first added to the water by composite emulsifier, at room temperature after being stirred to and dissolving completely, are added drop-wise to and are placed in the diesel oil of ultrasonic device and the mixed solution of propyl carbinol
,the speed dripped is 0.15-1.0mL/min, and after dripping, then continue ultrasonic 30-60min, ultrasonic frequency is 40KHz, and power is 200-350W, obtains micro emulsion diesel fuel.
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| CN201410759579.XA CN104593107A (en) | 2014-12-12 | 2014-12-12 | Preparation process for microemulsified diesel oil |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410759579.XA CN104593107A (en) | 2014-12-12 | 2014-12-12 | Preparation process for microemulsified diesel oil |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106520229A (en) * | 2016-11-10 | 2017-03-22 | 黑龙江省能源环境研究院 | Composite emulsification heavy oil additive and preparation method thereof |
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2014
- 2014-12-12 CN CN201410759579.XA patent/CN104593107A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106520229A (en) * | 2016-11-10 | 2017-03-22 | 黑龙江省能源环境研究院 | Composite emulsification heavy oil additive and preparation method thereof |
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Application publication date: 20150506 |