CN111607440A - Nano-material diesel combustion improver and preparation method thereof - Google Patents
Nano-material diesel combustion improver and preparation method thereof Download PDFInfo
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Abstract
The invention discloses a nano-material diesel combustion improver and a preparation method thereof, wherein the nano-material diesel combustion improver is prepared from the following raw materials in parts by weight: 3.5 to 5.5 parts of modified nano yttrium oxide, 10.0 to 15.0 parts of amyl butyrate, 35.0 to 55.0 parts of methanol, 5.5 to 8.5 parts of cyclododecyl nitrate, 0.5 to 1.0 part of rosin, 3.0 to 5.0 parts of fatty acid polyglycol ester, 2.2 to 2.8 parts of isopropanolamine and 0.05 to 0.10 part of nickel stearate. The nano material diesel oil combustion improver prepared by the invention has stable performance, can obviously improve the combustion efficiency of diesel oil, realizes full combustion of the diesel oil, avoids secondary pollution, reduces the generation of solid particle pollutants, has better cleaning and purifying effects and good environmental protection.
Description
Technical Field
The invention relates to the technical field of diesel oil additives, in particular to a nano-material diesel oil combustion improver and a preparation method thereof.
Background
Diesel oil is fuel oil of a diesel engine and a main fuel for power generation and heating, and the consumption of the diesel oil is increased year by year along with the rapid promotion of economic production; meanwhile, in the combustion process of diesel oil, the contact area of the diesel oil and oxygen is small, the combustion is insufficient, the combustion efficiency is low, and the waste of diesel oil dye and the generation of harmful gas and particle pollutants are easily caused.
The traditional Chinese medicine is very traditional in the situation that resources are gradually scarce and environmental awareness is strong, and the combustion value and the utilization rate of the diesel oil dye are improved. The traditional method is to add combustion improver into the diesel oil, wherein the combustion improver mainly comprises surfactant, organic activator and the like, and the combustion improver can improve the combustion value and the combustion efficiency of the diesel oil to a certain extent, but has the problems of instability, high cost, secondary pollution and the like, and cannot meet the requirement of environmental protection.
Chinese patent CN108102749B discloses a preparation method of a diesel oil nanometer combustion improver, relating to the technical field of combustion improvers and comprising the following steps: (1) irradiating the attapulgite by using a high-energy electron beam to obtain A; (2) adding the A into ethanol and stirring to obtain attapulgite ethanol suspension B; (3) and adding amino silicone oil and a silane coupling agent into the suspension B, stirring, drying, and grinding to obtain hydrophobic attapulgite, namely the diesel oil nano combustion improver. The combustion effect of the prepared diesel oil nano combustion improver on diesel oil is improved to be improved, and more particle pollutants are generated after combustion.
Chinese patent CN107858183A discloses a high-efficiency diesel combustion improver and a preparation method thereof. The high-efficiency diesel combustion improver comprises: ethanol, ferrocene, xylene, trinitrotoluene, methylal, ethylene titanate, furfural, isopropanol, o-dinitrobenzene. The prepared high-efficiency diesel combustion improver contains ethanol, the ethanol has good combustion performance and sufficient combustion, can effectively reduce and reduce the emission of harmful gas, is beneficial to environmental protection and ecological environment improvement, and is green and environment-friendly diesel; but the ferrocene added in the high-efficiency diesel combustion improver can not improve the combustion efficiency of the diesel and can also increase incomplete combustion products.
Therefore, the invention provides the nano-material combustion improver for the diesel oil and the preparation method thereof, aiming at the problems of higher cost, complex preparation and insufficient cleanness and environmental protection of the traditional combustion improver for the diesel oil.
Disclosure of Invention
Aiming at the problems, the invention provides a nano-material diesel combustion improver and a preparation method thereof.
The technical scheme adopted by the invention for solving the problems is as follows: a nano-material diesel combustion improver is prepared from the following raw materials in parts by weight: 3.5 to 5.5 parts of modified nano yttrium oxide, 10.0 to 15.0 parts of amyl butyrate, 35.0 to 55.0 parts of methanol, 5.5 to 8.5 parts of cyclododecyl nitrate, 0.5 to 1.0 part of rosin, 3.0 to 5.0 parts of fatty acid polyglycol ester, 2.2 to 2.8 parts of isopropanolamine and 0.05 to 0.10 part of nickel stearate.
Further, the nano-material diesel combustion improver is prepared from the following raw materials in parts by weight: 4.0 to 5.0 parts of modified nano yttrium oxide, 11.0 to 14.0 parts of amyl butyrate, 40.0 to 50.0 parts of methanol, 6.5 to 7.5 parts of cyclododecyl nitrate, 0.6 to 0.9 part of rosin, 3.5 to 4.5 parts of fatty acid polyglycol ester, 2.4 to 2.6 parts of isopropanolamine and 0.06 to 0.08 part of nickel stearate.
Further, the preparation steps of the modified nano yttrium oxide are as follows:
step a, soaking nano yttrium oxide in a sodium hydroxide solution for 5min to 8min, then washing with water for 1 to 3 times, and drying at the temperature of 200 ℃ to 300 ℃ for 2 hours to 4 hours to obtain a nano yttrium oxide primary product;
b, mixing the primary nano yttrium oxide product obtained in the step a with deionized water, and ultrasonically dispersing at the speed of 300-500 rpm for 30-40 min to obtain a nano yttrium oxide suspension for later use;
and c, dissolving stearic acid by using n-butyl alcohol, adding the stearic acid into the nano yttrium oxide suspension obtained in the step b, ultrasonically dispersing for 20-30 min, heating in an oil bath until reflux is achieved, keeping the reflux for 35-45 min, cooling the product to room temperature, carrying out centrifugal separation, washing the lower-layer precipitate for 1-3 times by using absolute ethyl alcohol, and finally drying to obtain the modified nano yttrium oxide.
Furthermore, in the step a, the concentration of the sodium hydroxide solution is 65-70%.
Furthermore, in the step b, the mass ratio of the nano yttrium oxide primary product to the deionized water is 1: 10 to 15.
Furthermore, in the step c, the mass ratio of stearic acid to nano yttrium oxide is 0.5-1.0: 10.
furthermore, in the step c, the drying is performed for 3 to 4 hours at a temperature of 120 to 125 ℃.
The invention also aims to provide a preparation method of the nano-material diesel oil combustion improver, wherein amyl butyrate, methanol, cyclododecyl nitrate, rosin, fatty acid polyglycol ester and isopropanolamine are mixed and stirred for 5min to be uniform according to the weight parts, then the nickel stearate and the modified nano-yttrium oxide in the weight parts are added, and the mixture is stirred for 20min to 25min again to obtain the nano-material diesel oil combustion improver.
Further, the mixing and stirring speed is 250 to 450 revolutions per minute, and the re-stirring speed is 80 to 120 revolutions per minute.
The invention has the advantages that:
(1) the nano material diesel oil combustion improver prepared by the invention has stable performance, can obviously improve the combustion efficiency of diesel oil, realizes full combustion of the diesel oil, avoids secondary pollution, reduces the generation of solid particle pollutants, has better cleaning and purifying effects and good environmental protection;
(2) according to the nano-material diesel oil combustion improver prepared by the invention, the modified nano yttrium oxide is added, so that the compatibility and stability of components are promoted, the contact area of diesel oil and air is increased, the combustion efficiency is improved by catalysis, the diesel oil is fully combusted, the waste of diesel oil resources is effectively avoided, the cost is low, and the preparation method is simple;
(3) the nano material diesel oil combustion improver can effectively reduce secondary pollution, reduce harmful gas emission and solid particle pollution, protect environment safety and do not harm human health.
Detailed Description
The following detailed description of embodiments of the invention, but the invention can be practiced in many different ways, as defined and covered by the claims.
Example 1
Nano-material diesel combustion improver
The feed is prepared from the following raw materials in parts by weight: 3.5kg of modified nano yttrium oxide, 10.0kg of amyl butyrate, 35.0kg of methanol, 5.5kg of cyclododecyl nitrate, 0.5kg of rosin, 3.0kg of fatty acid polyglycol ester, 2.2kg of isopropanolamine and 0.05kg of nickel stearate; the preparation method of the modified nano yttrium oxide comprises the following steps:
step a, soaking nano yttrium oxide in a sodium hydroxide solution with the mass concentration of 65% for 5min, then washing with water for 1 time, and drying at the temperature of 200 ℃ for 2 hours to obtain a nano yttrium oxide primary product;
b, mixing the nano yttrium oxide primary product obtained in the step a with deionized water, and performing ultrasonic dispersion at the speed of 300 revolutions per minute for 30min to obtain a nano yttrium oxide suspension for later use; wherein the mass ratio of the nano yttrium oxide primary product to the deionized water is 1: 10;
c, dissolving stearic acid by using n-butyl alcohol, adding the stearic acid into the nano yttrium oxide suspension obtained in the step b, ultrasonically dispersing for 20min, heating in an oil bath until reflux is achieved, keeping the reflux for 35min, cooling the product to room temperature, then carrying out centrifugal separation, washing the lower-layer precipitate for 1 time by using absolute ethyl alcohol, and finally drying for 3 hours at the temperature of 120 ℃ to obtain modified nano yttrium oxide; wherein the mass ratio of stearic acid to nano yttrium oxide is 0.5: 10.
the preparation method comprises the following steps:
mixing and stirring amyl butyrate, methanol, cyclododecyl nitrate, rosin, fatty acid polyethylene glycol ester and isopropanolamine according to the weight parts for 5min to be uniform, then adding the nickel stearate and the modified nano yttrium oxide according to the weight parts, and stirring for 20min again to obtain the nano material diesel oil combustion improver; wherein the mixing and stirring rate was 250 rpm, and the re-stirring rate was 80 rpm.
Example 2
Nano-material diesel combustion improver
The feed is prepared from the following raw materials in parts by weight: 5.5kg of modified nano yttrium oxide, 15.0kg of amyl butyrate, 55.0kg of methanol, 8.5kg of cyclododecyl nitrate, 1.0kg of rosin, 5.0kg of fatty acid polyglycol ester, 2.8kg of isopropanolamine and 0.10kg of nickel stearate; the preparation method of the modified nano yttrium oxide comprises the following steps:
step a, soaking nano yttrium oxide in a sodium hydroxide solution with the mass concentration of 70% for 8min, then washing with water for 3 times, and drying at the temperature of 300 ℃ for 4 hours to obtain a nano yttrium oxide primary product;
b, mixing the nano yttrium oxide primary product obtained in the step a with deionized water, and performing ultrasonic dispersion for 40min at the speed of 500 revolutions per minute to obtain a nano yttrium oxide suspension for later use; wherein the mass ratio of the nano yttrium oxide primary product to the deionized water is 1: 15;
c, dissolving stearic acid by using n-butyl alcohol, adding the stearic acid into the nano yttrium oxide suspension obtained in the step b, performing ultrasonic dispersion for 30min, performing oil bath heating until reflux is achieved, keeping the reflux for 45min, cooling a product to room temperature, performing centrifugal separation, washing a lower-layer precipitate for 3 times by using absolute ethyl alcohol, and finally drying for 4 hours at the temperature of 125 ℃ to obtain modified nano yttrium oxide; wherein the mass ratio of stearic acid to nano yttrium oxide is 1.0: 10.
the preparation method comprises the following steps:
mixing and stirring amyl butyrate, methanol, cyclododecyl nitrate, rosin, fatty acid polyethylene glycol ester and isopropanolamine according to the weight parts for 5min to be uniform, then adding the nickel stearate and the modified nano yttrium oxide according to the weight parts, and stirring again for 25min to obtain the nano material diesel oil combustion improver; wherein the mixing and stirring rate was 450 rpm, and the re-stirring rate was 120 rpm.
Example 3
Nano-material diesel combustion improver
The feed is prepared from the following raw materials in parts by weight: 5.0kg of modified nano yttrium oxide, 14.0kg of amyl butyrate, 50.0kg of methanol, 7.5kg of cyclododecyl nitrate, 0.9kg of rosin, 4.5kg of fatty acid polyglycol ester, 2.6kg of isopropanolamine and 0.08kg of nickel stearate; the preparation method of the modified nano yttrium oxide comprises the following steps:
step a, soaking nano yttrium oxide in a sodium hydroxide solution with the mass concentration of 66% for 6min, then washing with water for 3 times, and drying at 220 ℃ for 2-5 hours to obtain a nano yttrium oxide primary product;
b, mixing the nano yttrium oxide primary product obtained in the step a with deionized water, and performing ultrasonic dispersion at the speed of 350 revolutions per minute for 32min to obtain a nano yttrium oxide suspension for later use; wherein the mass ratio of the nano yttrium oxide primary product to the deionized water is 1: 11;
c, dissolving stearic acid by using n-butyl alcohol, adding the stearic acid into the nano yttrium oxide suspension obtained in the step b, ultrasonically dispersing for 22min, heating in an oil bath until reflux is achieved, keeping the reflux for 37min, cooling the product to room temperature, then carrying out centrifugal separation, washing the lower-layer precipitate for 3 times by using absolute ethyl alcohol, and finally drying for 4 hours at the temperature of 121 ℃ to obtain modified nano yttrium oxide; wherein the mass ratio of stearic acid to nano yttrium oxide is 0.6: 10.
the preparation method comprises the following steps:
mixing and stirring amyl butyrate, methanol, cyclododecyl nitrate, rosin, fatty acid polyethylene glycol ester and isopropanolamine according to the weight parts for 5min to be uniform, then adding the nickel stearate and the modified nano yttrium oxide according to the weight parts, and stirring again for 21min to obtain the nano-material diesel combustion improver; wherein the mixing and stirring rate is 300 rpm, and the re-stirring rate is 90 rpm.
Example 4
Nano-material diesel combustion improver
The feed is prepared from the following raw materials in parts by weight: 4.0kg of modified nano yttrium oxide, 11.0kg of amyl butyrate, 40.0kg of methanol, 6.5kg of cyclododecyl nitrate, 0.6kg of rosin, 3.5kg of fatty acid polyglycol ester, 2.4kg of isopropanolamine and 0.06kg of nickel stearate; the preparation method of the modified nano yttrium oxide comprises the following steps:
step a, soaking nano yttrium oxide in a sodium hydroxide solution with the mass concentration of 69% for 7min, then washing with water for 1 time, and drying at the temperature of 280 ℃ for 3.5 hours to obtain a nano yttrium oxide primary product;
b, mixing the nano yttrium oxide primary product obtained in the step a with deionized water, and ultrasonically dispersing for 38min at the speed of 450 revolutions per minute to obtain a nano yttrium oxide suspension for later use; wherein the mass ratio of the nano yttrium oxide primary product to the deionized water is 1: 14;
c, dissolving stearic acid by using n-butyl alcohol, adding the stearic acid into the nano yttrium oxide suspension obtained in the step b, performing ultrasonic dispersion for 28min, performing oil bath heating until the mixture flows back, keeping the mixture to flow back for 43min, cooling the product to room temperature, performing centrifugal separation, washing the lower-layer precipitate for 1 time by using absolute ethyl alcohol, and finally drying the lower-layer precipitate for 3 hours at the temperature of 124 ℃ to obtain modified nano yttrium oxide; wherein the mass ratio of stearic acid to nano yttrium oxide is 0.9: 10.
the preparation method comprises the following steps:
mixing and stirring amyl butyrate, methanol, cyclododecyl nitrate, rosin, fatty acid polyethylene glycol ester and isopropanolamine according to the weight parts for 5min to be uniform, then adding the nickel stearate and the modified nano yttrium oxide according to the weight parts, and stirring again for 24min to obtain the nano material diesel oil combustion improver; wherein the mixing and stirring rate was 400 rpm, and the re-stirring rate was 110 rpm.
Example 5
Nano-material diesel combustion improver
The feed is prepared from the following raw materials in parts by weight: 4.5kg of modified nano yttrium oxide, 12.0kg of amyl butyrate, 45.0kg of methanol, 7.0kg of cyclododecyl nitrate, 0.8kg of rosin, 4.0kg of fatty acid polyglycol ester, 2.5kg of isopropanolamine and 0.07kg of nickel stearate; the preparation method of the modified nano yttrium oxide comprises the following steps:
step a, soaking nano yttrium oxide in a sodium hydroxide solution with the mass concentration of 68% for 7min, then washing with water for 2 times, and drying at the temperature of 250 ℃ for 3 hours to obtain a nano yttrium oxide primary product;
b, mixing the nano yttrium oxide primary product obtained in the step a with deionized water, and ultrasonically dispersing for 35min at the speed of 400 r/min to obtain a nano yttrium oxide suspension for later use; wherein the mass ratio of the nano yttrium oxide primary product to the deionized water is 1: 13;
c, dissolving stearic acid by using n-butyl alcohol, adding the stearic acid into the nano yttrium oxide suspension obtained in the step b, performing ultrasonic dispersion for 25min, performing oil bath heating until reflux is achieved, keeping the reflux for 40min, cooling a product to room temperature, performing centrifugal separation, washing a lower-layer precipitate for 2 times by using absolute ethyl alcohol, and finally drying for 3.5 hours at the temperature of 123 ℃ to obtain modified nano yttrium oxide; wherein the mass ratio of stearic acid to nano yttrium oxide is 0.8: 10.
the preparation method comprises the following steps:
mixing and stirring amyl butyrate, methanol, cyclododecyl nitrate, rosin, fatty acid polyethylene glycol ester and isopropanolamine according to the weight parts for 5min to be uniform, then adding the nickel stearate and the modified nano yttrium oxide according to the weight parts, and stirring again for 23min to obtain the nano material diesel oil combustion improver; wherein the mixing and stirring rate was 350 rpm and the re-stirring rate was 100 rpm.
Examples of the experiments
To further illustrate the improvement of the nano-material diesel combustion improver prepared in the embodiments 1 to 5 of the present invention, the following tests are performed.
Respectively adopting diesel oil and the diesel oil added with the nano-material diesel oil combustion improver prepared in the embodiment 1-5 of the invention, carrying out the same oil consumption test on various performance indexes on an R-170 diesel oil dynamometer, and adopting 0# diesel oil and 0# diesel oil added with the nano-material diesel oil combustion improver prepared in the embodiment 5 of the invention to carry out a tail gas emission test; the addition amount of the nano-material diesel combustion improver prepared in the embodiments 1-5 is 10.0%, and the statistics of the results are shown in tables 1 and 2 below:
TABLE 1 Performance testing of the nanomaterial diesel fuel combustion improver prepared in inventive examples 1-5
TABLE 2 comparison of exhaust emissions of the nanomaterial diesel fuel combustion improver prepared in inventive example 5
| Test items | 0# diesel oil | 0# Diesel oil with addition of Combustion improver prepared in example 5 |
| CO(ppm) | 1038.4 | 762 |
| Excess air (%) | 442.0 | 375.4 |
| CO2(％) | 2.89 | 2.52 |
| NOX(ppm) | 85 | 64 |
| SO2(ppm) | 53.8 | 41.7 |
| Index of harmful gas | 3.62 | 2.35 |
The results in the table 1 and the table 2 show that the nano-material diesel oil combustion improver prepared in the embodiments 1 to 5 can obviously improve the power performance of an engine and reduce the oil consumption when being added into diesel oil, and the nano-material diesel oil combustion improver prepared in the embodiments 1 to 5 can effectively improve the combustion efficiency of the diesel oil and save the diesel oil fuel; at the same time, the CO and NO in the tail gas after combustion can be obviously reducedXAnd the content of harmful gases is high, so that the environment-friendly property is good.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. The nano-material diesel combustion improver is characterized by being prepared from the following raw materials in parts by weight: 3.5 to 5.5 parts of modified nano yttrium oxide, 10.0 to 15.0 parts of amyl butyrate, 35.0 to 55.0 parts of methanol, 5.5 to 8.5 parts of cyclododecyl nitrate, 0.5 to 1.0 part of rosin, 3.0 to 5.0 parts of fatty acid polyglycol ester, 2.2 to 2.8 parts of isopropanolamine and 0.05 to 0.10 part of nickel stearate.
2. The nano-material diesel combustion improver as set forth in claim 1, wherein the nano-material diesel combustion improver is prepared from the following raw materials in parts by weight: 4.0 to 5.0 parts of modified nano yttrium oxide, 11.0 to 14.0 parts of amyl butyrate, 40.0 to 50.0 parts of methanol, 6.5 to 7.5 parts of cyclododecyl nitrate, 0.6 to 0.9 part of rosin, 3.5 to 4.5 parts of fatty acid polyglycol ester, 2.4 to 2.6 parts of isopropanolamine and 0.06 to 0.08 part of nickel stearate.
3. The nanomaterial diesel fuel combustion improver as claimed in claim 1, wherein the modified nano yttrium oxide is prepared by the following steps:
step a, soaking nano yttrium oxide in a sodium hydroxide solution for 5min to 8min, then washing with water for 1 to 3 times, and drying at the temperature of 200 ℃ to 300 ℃ for 2 hours to 4 hours to obtain a nano yttrium oxide primary product;
b, mixing the primary nano yttrium oxide product obtained in the step a with deionized water, and ultrasonically dispersing at the speed of 300-500 rpm for 30-40 min to obtain a nano yttrium oxide suspension for later use;
and c, dissolving stearic acid by using n-butyl alcohol, adding the stearic acid into the nano yttrium oxide suspension obtained in the step b, ultrasonically dispersing for 20-30 min, heating in an oil bath until reflux is achieved, keeping the reflux for 35-45 min, cooling the product to room temperature, carrying out centrifugal separation, washing the lower-layer precipitate for 1-3 times by using absolute ethyl alcohol, and finally drying to obtain the modified nano yttrium oxide.
4. The combustion improver of the nano-material diesel oil as claimed in claim 3, wherein in the step a, the concentration of the sodium hydroxide solution is 65-70%.
5. The combustion improver of the nano-material diesel oil as claimed in claim 3, wherein in the step b, the mass ratio of the nano yttrium oxide primary product to the deionized water is 1: 10 to 15.
6. The nanomaterial diesel combustion improver as claimed in claim 3, wherein in step c, the mass ratio of stearic acid to nano yttrium oxide is 0.5-1.0: 10.
7. the combustion improver of nano-material diesel oil as set forth in claim 3, wherein the drying in step c is performed at a temperature of 120 to 125 ℃ for 3 to 4 hours.
8. A preparation method of the nanomaterial diesel fuel combustion improver as claimed in claims 1 to 7, characterized in that the preparation method comprises the following steps: mixing and stirring amyl butyrate, methanol, cyclododecyl nitrate, rosin, fatty acid polyglycol ester and isopropanolamine in parts by weight for 5min to be uniform, then adding the nickel stearate and the modified nano yttrium oxide in parts by weight, and stirring for 20min to 25min again to obtain the nano material diesel oil combustion improver.
9. The method of claim 8, wherein the mixing and stirring rate is 250 to 450 rpm and the re-stirring rate is 80 to 120 rpm.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115707762A (en) * | 2021-08-19 | 2023-02-21 | 陈文祥 | Improved pastille for internal combustion engine oil |
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