Low-lead aviation gasoline and preparation method thereof
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A technology of aviation gasoline and tetraethyl lead, which is applied in the field of aviation gasoline, can solve the problems of environmental pollution, lead-containing toxic substances entering the air, and human hazards, and achieve the effects of good combustion performance, good stability, and low production cost
Active Publication Date: 2015-04-29
GUANGHAN TIANZHOU AERO ENGINE FUEL TECH CO LTD
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Problems solved by technology
After tetraethyl lead is burned, the lead-containing toxic substances produced enter the air, pollute the environment, and cause harm to the human body
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Embodiment 1
[0032] By weight, 75 parts of industrial isooctane refined by alkylation gasoline, 10 parts of cyclopentane, 5 parts of toluene, 5 parts of ethylbenzene, 5 parts of cumene, 0.105 parts of tetraethyl Lead and 0.0015 parts of 2,6-di-tert-butyl-p-cresol are mixed, and evenly blended to obtain low-lead aviation gasoline, and some physical and chemical property indicators of this low-lead aviation gasoline are shown in Table 1 below:
[0033] Table 1 Partial property index of low-lead aviation gasoline in Example 1
[0034]
[0035]
Embodiment 2
[0037] By weight, 65 parts of alkylated gasoline, 6 parts of isopentane, 9 parts of methylcyclopentane, 10 parts of toluene, 5 parts of ethylbenzene, 5 parts of cumene, 0.11 parts of tetraethyl Base lead and 0.0015 parts of 2,6-di-tert-butyl-p-cresol mix, and blend evenly, obtain low-lead aviation gasoline, the part physical and chemical property index of this low-lead aviation gasoline is as shown in table 2 below:
[0038] Table 2 Partial property indexes of low-lead aviation gasoline in Example 2
[0039]
[0040]
Embodiment 3
[0042] By weight, 84 parts of industrial isooctane refined by alkylation gasoline, 8 parts of isopentane, 5 parts of xylene, 3 parts of mesitylene, 0.07 parts of tetraethyl lead and 0.0015 parts of 2,6-di-tert-butyl-p-cresol is mixed and blended to obtain ultra-low-lead aviation gasoline, and some physical and chemical property indicators of this ultra-low-lead aviation gasoline are shown in Table 3 below:
[0043] Table 3 Partial property indexes of low-lead aviation gasoline in Example 3
[0044]
[0045]
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Abstract
The invention provides a low-lead aviation gasoline and a preparation method thereof. The low-lead aviation gasoline is composed of the following components in parts by weight: 40-90 parts of technical octane, 5-30 parts of isooctane-free alkane, 5-30 parts of aromatic hydrocarbon, 0.001-0.12 part of tetraethyl lead and 0.0008-0.0017 part of antioxidant. The number of carbon atoms of the alkane is C5-C9, and the number of carbon atoms of the aromatic hydrocarbon is C7-C9. The preparation method comprises the following steps: treating gasoline alkylate or isomerized gasoline in a distillation refinement mode to obtain higher-purity technical octane, and blending the technical octane, isooctane-free alkane, aromatic hydrocarbon, lead tetraethyl and antioxidant according to the formula to obtain the low-lead aviation gasoline. The low-lead aviation gasoline has the advantages of low lead content, low production cost and excellent combustion performance, and conforms to the standards GB 1787 and ASTM D910.
Description
technical field [0001] The invention relates to the field of aviation gasoline, in particular to a low-lead aviation gasoline and a preparation method thereof. Background technique [0002] In recent years, with the rapid development of my country's economy, the general aviation industry has also achieved great development. Especially with the lifting of the low-flying aviation ban, the general aviation industry will show a rapid growth trend, and the performance requirements and demand for aviation gasoline will also increase day by day. [0003] The quality requirements of aviation gasoline are similar to those of vehicle gasoline, but due to the structure of the aero-engine and the complexity of the engine's high-altitude operation, aviation gasoline has better anti-knock performance, evaporation, low-temperature fluidity and stability than vehicle gasoline. High quality requirements. In order to meet the anti-knock requirements of aviation gasoline, it is allowed to ad...
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