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Hydrous ethanol gasoline and preparation method thereof

A technology for hydrous ethanol and gasoline, applied in the field of petrochemical industry, can solve the problems of large amount of emulsifier, limited capacity, inability to solve the problem of mutual solubility of hydrous ethanol and gasoline, etc., and achieves the effect of simple process formula and convenient storage and transportation.

Active Publication Date: 2015-05-13
HAINAN UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The application publication number is CN 102925227A, and the title of the invention is "A Preparation Method for Microemulsion Gasoline". It describes the use of microemulsifiers and co-emulsion agents to make water and gasoline form microemulsion gasoline. This solution has the problem of large amount of emulsifier. And can't solve the miscible problem of water-containing ethanol and gasoline; the application publication number is CN 101203585A, and the title of invention is "motor fuel based on gasoline and ethanol" which has set forth the proportion range in which gasoline and water-containing ethanol are mixed without stratification, but because no Additives that make ethanol gasoline only rely on its own limited capacity for water

Method used

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  • Hydrous ethanol gasoline and preparation method thereof
  • Hydrous ethanol gasoline and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment example 1

[0019] In order to obtain the optimal stability of ethanol gasoline with a water ethanol ratio of 10% (ethanol degree of 95%), the optimal preparation parameters are sought within a certain range. Among them, the range of component type optimization: HLB value 4.3-8, stirring time 0.5-6.5, co-solvent ratio 0-0.4, emulsifier ratio 0.2-1, the indicator of stability is phase separation temperature (Y); The type of emulsifier is selected as Span 80 + Tween 80, and the type of cosolvent is selected as n-octanol.

[0020] (II) Experimental design:

[0021] Using mathematical statistical software such as SPSS or Design-Expert software or Isight software, the experimental plan and results based on the central combination method design are shown in Table 1.

[0022] Table 1 E10W stability test matrix and results

[0023]

[0024] Note: The response value in the table is phase separation temperature / ℃, A is HLB value, B is stirring time / min, C is cosolvent / %, D is emulsifier / %.

...

Embodiment example 2

[0037] (1) scope of optimization:

[0038]In order to obtain the optimal stability of ethanol gasoline with a water ethanol ratio of 20% (ethanol degree of 95%), the optimal preparation parameters are sought within a certain range. Among them, the range of component type optimization: HLB value (A) 4.3 ~ 8, stirring time (B) 0.5 ~ 6.5, cosolvent volume ratio (C) 0.1 ~ 0.5%, emulsifier volume ratio (D) 0.2 ~ 1% , and the index to measure the stability is the phase separation temperature (Y). The type of compound emulsifier is selected as Span 80 + Tween 40, and the type of co-solvent is selected as castor oil.

[0039] (II) Experimental design:

[0040] Using mathematical statistical software such as SPSS or Design-Expert software, the experiment was designed based on the central combination method, as shown in Table 2. The response value is the phase separation temperature, and the results are shown in Table 2.

[0041] Table 2 E20W stability test matrix and results

[00...

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Abstract

The invention discloses hydrous ethanol gasoline. The hydrous ethanol gasoline comprises the following components: gasoline, hydrous ethanol, a hydrophilic emulsifier, a lipophilic emulsifier, and a cosolvent, and is characterized in that the volume percentage of each component is as follows: 78-89.8% of the gasoline, 10-20% of the hydrous ethanol, 0.2-1.2% of a compound emulsifier, 0-0.5% of the cosolvent, and 0-0.3% of a combustion improver, wherein the ethanol concentration of the hydrous ethanol is 90-97%. According to the hydrous ethanol gasoline, blending components of the hydrous ethanol, the species and the proportions of the emulsifier and the cosolvent and the like are preferable, so that the carrying capacity of the ethanol gasoline to water is improved, the phase separation temperature of the hydrous ethanol gasoline is reduced, the technical formula is simple, phase separation is avoided even though the hydrous ethanol gasoline is stored for more than half a year under a seal condition, the hydrous ethanol gasoline is convenient to store and transport, and the problem of phase separation caused by the fact that the water content of ethanol gasoline exceeds the standard is completely solved.

Description

technical field [0001] The invention belongs to the technical field of petrochemical industry, and relates to a water-containing ethanol gasoline component and a preparation method thereof. Background technique [0002] As a renewable biomass energy, ethanol can be applied to vehicle fuel, and it is mainly mixed with gasoline to form ethanol gasoline for vehicles. Compared with gasoline, ethanol gasoline has more advantages in emission performance. Ethanol has the characteristics of high octane number, octane number blending effect and high oxygen content similar to methyl tert-butyl ether (MTBE), and is more environmentally friendly than MTBE, so it is technically and economically all or partly Alternative to MTBE. At present, nearly 20 countries are promoting ethanol gasoline, and 10 provinces and cities in my country are currently promoting the use of ethanol gasoline as pilots for E10 ethanol gasoline for vehicles. The ethanol added in gasoline is absolute ethanol. H...

Claims

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Application Information

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IPC IPC(8): C10L1/04C10L1/10C10L1/182C10L1/19C10L1/192C10L1/12
Inventor 陈振斌肖明伟裴毅强刘赛武孙姣阎汝真张弥涛王小琛李百成
Owner HAINAN UNIVERSITY
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