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Lead-free aviation gasoline and preparation method thereof

A technology of unleaded aviation and gasoline, applied in the petroleum industry, liquid carbon-containing fuel, fuel, etc., can solve the problems of polluting the environment, harming the human body, entering air, soil and water sources, etc., and achieves low combustion pollution, low cost, and The effect of low nitrogen compound content and low oxygen content

Active Publication Date: 2014-08-06
THE SECOND RES INST OF CIVIL AVIATION ADMINISTRATION OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

After tetraethyl lead is burned, a large amount of lead-containing toxic compounds will be produced, which will enter the air, soil and water sources, pollute the environment, and cause harm to the human body

Method used

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  • Lead-free aviation gasoline and preparation method thereof
  • Lead-free aviation gasoline and preparation method thereof
  • Lead-free aviation gasoline and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] 60% by volume of isooctane prepared by isomerization, 3% of isobutane, 7% of isopentane, 2% of toluene, 18% of xylene, 5% of toluidine and 5% After the methyl tert-butyl ether is mixed and blended, unleaded aviation gasoline is obtained, and some physical and chemical property indicators of this unleaded aviation gasoline are shown in Table 2 below:

[0034] Part of the physical and chemical properties of unleaded aviation gasoline prepared in Table 2

[0035]

[0036]

Embodiment 2

[0038] In terms of volume percentage, 58% of C4-C10 alkanes prepared by catalytic cracking, hydrofining and distillation cutting, 34% of C7-C9 aromatics prepared by aromatization and distillation cutting, 2% of aniline and 6% of ether After the methyl tert-amyl ether prepared by compounding is mixed and blended uniformly, unleaded aviation gasoline is obtained, and some physical and chemical property indexes of this unleaded aviation gasoline are shown in Table 3 below:

[0039] Some physical and chemical properties of unleaded aviation gasoline prepared in table 3

[0040]

Embodiment 3

[0042] An unleaded aviation gasoline is composed of C4-C12 alkanes prepared by alkylation and distillation cutting. Some physical and chemical properties of the unleaded aviation gasoline are shown in Table 4 below:

[0043] Some physical and chemical properties of unleaded aviation gasoline prepared in table 4

[0044]

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Abstract

The invention provides a lead-free aviation gasoline and a preparation method thereof. The lead-free aviation gasoline is prepared by blending 20-100% of alkanes, 0-86% of arenes, 0-10% of alkenes, 0-20% of nitrogen-containing organic compounds and 0-20% of oxygen-containing organic compounds in percentage by volume together, or prepared by use of a petrochemical refining technology. The alkanes in the lead-free aviation gasoline mainly include isoalkane and cycloalkane, the two of which are low in vapor pressure, appropriate in boiling range, and thus capable of meeting the requirements of the aviation gasoline; the lead-free aviation gasoline is low in all of the content of arenes, the content of alkenes, the content of nitrogen-containing organic compounds and the content of oxygen-containing organic compounds, and thus low in combustion pollution and advantageous for improving the environmental quality of China; besides, the motor octane number of the lead-free aviation gasoline ranges from 90 to 105, and the lead-free aviation gasoline is further high in yield, low in cost and simple in preparation method.

Description

technical field [0001] The invention belongs to the technical field of fuel application, and in particular relates to an unleaded aviation gasoline and a preparation method thereof. Background technique [0002] Modern aviation piston engines require the use of high-octane aviation gasoline. In 1921, Thomas Midgley Jr. of General Motors discovered for the first time that tetraethyl lead added to gasoline could reduce knocking and increase octane number. At present, aviation gasoline manufacturers mostly improve fuel combustion efficiency and anti-knock ability of gasoline by adding tetraethyl lead to aviation gasoline. However, tetraethyl lead itself is a highly toxic substance. It can enter the human body through various channels such as the respiratory system, digestive system and skin, causing visual and auditory hallucinations, and in severe cases, it will cause coma or even death. The lead oxide produced by the burning of tetraethyl lead is also a highly toxic substan...

Claims

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Application Information

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IPC IPC(8): C10L1/08
Inventor 柳华向海陈凯王文武杨智渊夏祖西
Owner THE SECOND RES INST OF CIVIL AVIATION ADMINISTRATION OF CHINA
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