CN108517230B - Environment-friendly gasoline cleaning combustion improver and preparation method thereof - Google Patents

Environment-friendly gasoline cleaning combustion improver and preparation method thereof Download PDF

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CN108517230B
CN108517230B CN201810314937.4A CN201810314937A CN108517230B CN 108517230 B CN108517230 B CN 108517230B CN 201810314937 A CN201810314937 A CN 201810314937A CN 108517230 B CN108517230 B CN 108517230B
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ether
combustion improver
gasoline
environment
triethoxy
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CN108517230A (en
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邹玉梁
吕红军
李忠涛
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Saikun (Zhejiang Free Trade Zone) energy Co., Ltd
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    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L1/00—Liquid carbonaceous fuels
    • C10L1/10—Liquid carbonaceous fuels containing additives
    • C10L1/14—Organic compounds
    • C10L1/22—Organic compounds containing nitrogen
    • C10L1/23—Organic compounds containing nitrogen containing at least one nitrogen-to-oxygen bond, e.g. nitro-compounds, nitrates, nitrites
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L1/00—Liquid carbonaceous fuels
    • C10L1/10—Liquid carbonaceous fuels containing additives
    • C10L1/103—Liquid carbonaceous fuels containing additives stabilisation of anti-knock agents
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L10/00—Use of additives to fuels or fires for particular purposes
    • C10L10/10—Use of additives to fuels or fires for particular purposes for improving the octane number

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  • Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Liquid Carbonaceous Fuels (AREA)

Abstract

The invention discloses an environment-friendly gasoline cleaning combustion improver and a preparation method thereof. The composition comprises triethoxy triethanolamine ether, wherein the research octane number of the triethoxy triethanolamine ether exceeds 110, and the motor octane number of the triethoxy triethanolamine ether is more than 100. The environment-friendly gasoline cleaning combustion improver (TEAE) prepared by the invention is an oil-soluble colorless transparent liquid, and has low solubility in water. Compared with other environment-friendly gasoline clean combustion improver, the gasoline clean combustion improver has higher octane number, the Research Octane Number (RON) of the gasoline clean combustion improver can reach 118, and the Motor Octane Number (MON) is also higher than 100, so the gasoline clean combustion improver has good antiknock property. TEAE has better compatibility with both automobile engines and gasoline, which is beneficial to prolonging the service life of the engine. The synthesis cost of TEAE is low, and the method is simple and has strong social and economic values.

Description

Environment-friendly gasoline cleaning combustion improver and preparation method thereof
Technical Field
The invention belongs to the technical field of environment-friendly gasoline cleaning combustion improver, and particularly relates to an environment-friendly gasoline cleaning combustion improver and a preparation method thereof.
Background
With the increasing automobile holding amount and the reduction of petroleum resources, and the stricter environmental regulations, the reduction of fuel consumption and the improvement of emissions become important to the research of gasoline engines. Besides improving the engine, the adoption of the additive to improve the fuel quality is also a feasible measure, the structure of the internal combustion engine is not required to be modified, and the method has the advantages of flexible and simple use, low cost and the like.
In the early 20 th century, automobile engineers found that the engine was operated more smoothly and efficiently without knocking. In order to improve the combustion efficiency of gasoline, tetraethyl lead (tetraethyl lead) has been found to be effective. However, with the recent increased awareness of the poisoning effect of lead on catalytic converters and the environmental pollution, researchers have also sought ways to mitigate the harm caused by lead in gasoline. Therefore, research and development of novel environment-friendly gasoline cleaning combustion improver become more and more important.
Therefore, the technical problem to be solved in the prior art is to develop an environment-friendly gasoline cleaning combustion improver which has good anti-knock property, better compatibility with an automobile engine and gasoline, low synthesis cost, simple method and strong social and economic values, and is beneficial to prolonging the service life of the engine.
Disclosure of Invention
This section is for the purpose of summarizing some aspects of embodiments of the invention and to briefly introduce some preferred embodiments. In this section, as well as in the abstract and the title of the invention of this application, simplifications or omissions may be made to avoid obscuring the purpose of the section, the abstract and the title, and such simplifications or omissions are not intended to limit the scope of the invention.
The present invention has been made in view of the above-mentioned technical drawbacks.
Therefore, as one aspect of the invention, the invention overcomes the defects in the prior art and provides an environment-friendly gasoline cleaning combustion improver.
In order to solve the technical problems, the invention provides the following technical scheme: the environment-friendly clean gasoline combustion improver comprises triethoxy triethanolamine ether, wherein the research octane number of the triethoxy triethanolamine ether exceeds 110, and the motor octane number of the triethoxy triethanolamine ether is more than 100.
As a preferable scheme of the environment-friendly gasoline cleaning combustion improver, the environment-friendly gasoline cleaning combustion improver comprises the following components in percentage by weight: the dynamic viscosity of the triethoxytriethanolamine ether is 3.768 +/-0.03 mm2(s) density of 884.4 + -0.5 kg/m3。
As a preferable scheme of the environment-friendly gasoline cleaning combustion improver, the environment-friendly gasoline cleaning combustion improver comprises the following components in percentage by weight: the triethoxy triethanolamine ether is mixed with gasoline by the volume ratio of 5-20%.
As another aspect of the invention, the invention overcomes the defects in the prior art and provides a preparation method of an environment-friendly gasoline cleaning combustion improver.
In order to solve the technical problems, the invention provides the following technical scheme: a preparation method of the environment-friendly gasoline cleaning combustion improver as defined in any one of claims 1 to 3, which comprises the steps of dissolving triethanolamine in tetrahydrofuran, adding ethanol and sodium hydroxide, placing in a reaction kettle for reflux etherification, filtering and distilling to obtain triethoxy triethanolamine ether.
As a preferred scheme of the preparation method of the environment-friendly gasoline cleaning combustion improver, the preparation method comprises the following steps: the triethanolamine: the molar ratio of ethanol is 1: 3.
as a preferred scheme of the preparation method of the environment-friendly gasoline cleaning combustion improver, the preparation method comprises the following steps: each 1mol of triethanolamine was dissolved in 4L of tetrahydrofuran.
As a preferred scheme of the preparation method of the environment-friendly gasoline cleaning combustion improver, the preparation method comprises the following steps: 400g of sodium hydroxide are added per 3mol of ethanol.
As a preferred scheme of the preparation method of the environment-friendly gasoline cleaning combustion improver, the preparation method comprises the following steps: and placing the mixture into a reaction kettle for refluxing and etherification, wherein the temperature is 100 ℃, and the time is 10 hours.
As a preferred scheme of the preparation method of the environment-friendly gasoline cleaning combustion improver, the preparation method comprises the following steps: and (3) performing distillation, including vacuum distillation, wherein the pressure is 10mbar, and collecting fractions subjected to vacuum distillation at 90-120 ℃ until colorless and transparent liquid appears, so as to obtain pure triethoxy triethanolamine ether.
As a preferable scheme of the preparation method of the environment-friendly gasoline cleaning combustion improver, the preparation method further comprises the step of removing moisture in the triethoxytriethanolamine ether.
The invention has the beneficial effects that: the environment-friendly gasoline cleaning combustion improver (TEAE) prepared by the invention is an oil-soluble colorless transparent liquid, and has low solubility in water. Compared with other environment-friendly gasoline clean combustion improver, the gasoline clean combustion improver has higher octane number, the Research Octane Number (RON) of the gasoline clean combustion improver can reach 118, and the Motor Octane Number (MON) is also higher than 100, so the gasoline clean combustion improver has good antiknock property. TEAE has better compatibility with both automobile engines and gasoline, which is beneficial to prolonging the service life of the engine. The synthesis cost of TEAE is low, and the method is simple and has strong social and economic values.
The environment-friendly gasoline cleaning combustion improver (TEAE) prepared by the invention can completely remove carbon deposition in an automobile engine, plays a role in cleaning a fuel system, can also play a role in resisting detonation, and enhances the power performance of the engine; the gasoline atomization effect is improved, the gasoline utilization rate is improved, fuel oil is saved, and the effects of lubrication, corrosion prevention, rust prevention, emulsion breaking and engine protection can be achieved; in addition, the additive of the invention can effectively reduce the noise generated in the running process of the engine, reduce the abrasion of the cylinder, prolong the service life of the engine and greatly reduce the emission of harmful substances in black smoke.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise. Wherein:
FIG. 1 is a graph of flame and heat release for 20 vol.% TEAE-gasoline blend and 20 vol.% ethanol-gasoline blend, respectively, ignited.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with examples are described in detail below.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways than those specifically described and will be readily apparent to those of ordinary skill in the art without departing from the spirit of the present invention, and therefore the present invention is not limited to the specific embodiments disclosed below.
Furthermore, reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one implementation of the invention. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.
Example 1:
preparation of triethoxytriethanolamine ether:
1mol of triethanolamine was dissolved in 4L of tetrahydrofuran and stirred, and then 3mol of ethanol and 400g of sodium hydroxide were added. The mixture was placed in a reaction kettle and etherified at 100 ℃ under reflux for 10 hours, then cooled to room temperature and filtered. The filtrate was distilled under vacuum to give a transparent liquid having a yellow color. Then, transferring the crude extracts to a reduced pressure distillation system, collecting fractions subjected to vacuum distillation at 90-120 ℃ under the pressure of 10mbar, and if the fractions at the temperature have color, carrying out reduced pressure distillation again until colorless and transparent liquid appears, thus obtaining pure triethoxy triethanolamine ether (TEAE). The reaction formula is as follows:
Figure BDA0001623460630000041
the physical and chemical properties of TEAE were measured in the Guangzhou analysis and testing center of China, including density, dynamic viscosity, research octane number, and distillation range. The results are shown in the following table:
TABLE 1 physicochemical Properties of TEAE
Figure BDA0001623460630000042
Example 2:
testing the performance of the TEAE and gasoline mixture:
sample preparation:
respectively mixing TETEA obtained by distillation with 97# gasoline according to the volume ratio of 5%, 7.5%, 10%, 15% and 20%, and marking for later use. Ethanol and gasoline were also mixed in the same ratio and used as a control sample.
Compatibility test and ignition test:
the TEAE-gasoline mixture at 20% by volume and the ethanol-gasoline mixture at 20% by volume were ignited and the flame and exotherm observed as shown in FIG. 1. As can be seen from fig. 1, the tea-gasoline mixture after ignition produces a yellow flame and gives off a large amount of heat. The flame is stable in the combustion process, and no peculiar smell or black smoke is generated. The flame color of the ethanol-gasoline mixture is dark and red, the flame temperature is low, and the low heat value of the ethanol is caused. The results of the experiments show that the combustion of the TEAE-gasoline mixture is good.
Mixing TETEA with 97# gasoline at different ratios (5%, 7.5%, 10%, 15%, 20%), after adding TETEA to the gasoline, there was no significant phase separation between the two solutions before stirring, but most of the TETEA was in the lower layer of the solution due to the greater density; stirring by shaking, and after the solution is kept still and stable, the TETEA and the gasoline mixture with different proportions are completely compatible. When stored above-20 ℃, the mixed solution is still in a stable and compatible state after being placed for a long time. However, when these mixtures were stored at-40 ℃ for several days, the mixtures were observed to delaminate and phase separate. This phenomenon may occur due to the tea adsorbing small amounts of water. The water produced during the esterification was not completely removed and some remained in the tea sample, forming a three-phase mixture of water, tea and gasoline, which resulted in phase separation of tea from gasoline at lower temperatures. When the moisture of the TEAE is completely removed, the TEAE can be used as fuel oil, namely when the TEAE is used as an environment-friendly gasoline cleaning combustion improver, the moisture of the TEAE needs to be removed.
Example 3:
heat value analysis:
the calorific value of TEAE and other oil samples was determined by the BH-III S oxygen bomb calorimeter of Kangwan.
TABLE 2 TEAE/gasoline and ethanol/gasoline heating values
Figure BDA0001623460630000051
Figure BDA0001623460630000061
As can be seen from Table 2, the combustion heat of TEAE is about 28kJ/g, which is higher than that of fuel ethanol by 25kJ/g, and the combustion heat of TEAE is about 2/3 of 97# gasoline. After the TEAE is mixed into the gasoline, the combustion heat is slightly reduced generally, the reduction amplitude is about 2-5 kJ/g, and the reduction amplitude is directly related to the proportion of the TEAE added into the gasoline. In different ratio ethanol/gasoline mixtures, the heat of combustion of the fuel decreases as the ratio of ethanol increases. Wherein, the gasoline (E-5) containing 5 percent of ethanol by volume generates the highest combustion heat which can reach 95 percent of the combustion heat of the gasoline. However, in the various proportions of TEAE-gasoline blends, the heat of combustion of the blend gradually decreased as the TEAE content increased, with the 20% volume TEAE blend burning approximately 90% of the gasoline heat of combustion. These results indicate that TEAE has a synergistic effect on gasoline combustion without significantly affecting heat release while contributing to smooth combustion.
Analysis combining these results shows that TEAE can be used as an additive for gasoline, and exhibits stable compatibility and potential for development and application.
In conclusion, the environment-friendly gasoline cleaning combustion improver (TEAE) prepared by the invention is an oil-soluble colorless transparent liquid, and has low solubility in water. Compared with other environment-friendly gasoline clean combustion improver, the gasoline clean combustion improver has higher octane number, the Research Octane Number (RON) of the gasoline clean combustion improver can reach 118, and the Motor Octane Number (MON) is also higher than 100, so the gasoline clean combustion improver has good antiknock property. TEAE has better compatibility with both automobile engines and gasoline, which is beneficial to prolonging the service life of the engine. The synthesis cost of TEAE is low, and the method is simple and has strong social and economic values.
The environment-friendly gasoline cleaning combustion improver (TEAE) prepared by the invention can completely remove carbon deposition in an automobile engine, plays a role in cleaning a fuel system, can also play a role in resisting detonation, and enhances the power performance of the engine; the gasoline atomization effect is improved, the gasoline utilization rate is improved, fuel oil is saved, and the effects of lubrication, corrosion prevention, rust prevention, emulsion breaking and engine protection can be achieved; in addition, the additive of the invention can effectively reduce the noise generated in the running process of the engine, reduce the abrasion of the cylinder, prolong the service life of the engine and greatly reduce the emission of harmful substances in black smoke.
It should be noted that the above-mentioned embodiments are only for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the claims of the present invention.

Claims (4)

1. The application of triethoxy triethanolamine ether as an environment-friendly gasoline cleaning combustion improver component is characterized in that: the environment-friendly gasoline cleaning combustion improver comprises,
triethoxytriethanolamine ether, wherein the research octane number of the triethoxytriethanolamine ether exceeds 110, the motor octane number of the triethoxytriethanolamine ether is more than 100, and the dynamic viscosity of the triethoxytriethanolamine ether is 3.768 +/-0.03 mm at the temperature of 20 DEG C2(s) a density of 884.4 + -0.5 kg/m at 20 DEG C3。
2. The use of triethoxytriethanolamine ether as a component of an environment-friendly gasoline cleaning combustion improver as claimed in claim 1, wherein: the triethoxy triethanolamine ether is mixed with gasoline by the volume ratio of 5-20%.
3. The use of triethoxytriethanolamine ether as a component of an environment-friendly gasoline cleaning combustion improver as claimed in claim 1, wherein: the preparation method of the triethoxy triethanolamine ether comprises the following steps,
dissolving 1mol of triethanolamine in 4L of tetrahydrofuran, adding ethanol and sodium hydroxide, adding 400g of sodium hydroxide in 3mol of ethanol, placing the mixture in a reaction kettle for reflux etherification at the temperature of 100 ℃ for 10 hours, filtering and distilling to obtain triethoxy triethanolamine ether;
the triethanolamine: the molar ratio of ethanol is 1: and 3, performing distillation including vacuum distillation under the pressure of 10mbar, and collecting fractions subjected to vacuum distillation at the temperature of 90-120 ℃ until colorless and transparent liquid appears, so as to obtain pure triethoxy triethanolamine ether.
4. The use of triethoxytriethanolamine ether as a component of an environment-friendly gasoline cleaning combustion improver as claimed in claim 3, wherein: the preparation method of the triethoxy triethanolamine ether further comprises the following steps,
and removing water in the triethoxytriethanolamine ether.
CN201810314937.4A 2018-04-10 2018-04-10 Environment-friendly gasoline cleaning combustion improver and preparation method thereof Expired - Fee Related CN108517230B (en)

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Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101845335A (en) * 2009-03-23 2010-09-29 北京中飞原遥感科技有限公司 Vehicle alcohol clean gasoline and preparation method thereof

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101845335A (en) * 2009-03-23 2010-09-29 北京中飞原遥感科技有限公司 Vehicle alcohol clean gasoline and preparation method thereof

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
2-乙氧基乙醇氨化合成2-乙氧基乙胺工艺研究;兰昭洪;《杭州化工》;20100331(第1期);第37-39页 *
三乙醇胺和甲醇反应;未知;《百度知道》;20150417;第1页 *

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