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Lead-free aviation gasoline and preparation method thereof

A technology of unleaded aviation and aviation gasoline, which is applied in the petroleum industry, liquid carbon-containing fuel, fuel, etc., and can solve problems such as air pollution

Active Publication Date: 2017-04-26
CHINA PETROLEUM & CHEM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the combustion of arylamine compounds will produce nitrogen oxides, it will cause nitrogen oxide pollution to the air

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

[0104] In order to make the object, technical solution and advantages of the present invention more clear, the present invention will be further described in detail below in conjunction with the examples. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0105] experiment method

[0106] The following test methods are used to measure various indicators of various raw materials and aviation gasoline.

[0107]

[0108]

[0109] The raw materials adopted in the following examples are as follows:

[0110] Component A1—Alkylation Unit Oil

[0111] The specifications for the alkylation unit oil as Component A are as follows:

[0112]

[0113] Component A2—Alkylation Unit Oil

[0114] The specifications for the alkylation unit oil as Component A are as follows:

[0115]

[0116] Component B1—Pentane Component Oil Produced by Reforming Units

[0117] The indicator...

Embodiment 1

[0129] 75% alkylation unit oil (component A1), 5% reforming unit produced pentane component oil (component B1) and 15% C7 aromatic hydrocarbon component oil (component C1) and 5% of methyl tert-butyl ether (component E) was mixed uniformly to obtain unleaded aviation gasoline. Some physical and chemical property indicators of the unleaded aviation gasoline are shown in the following table:

[0130] Analysis Project Quality Index Octane number (motor method) 94.5 Research Octane Number 98 Initial boiling point, ℃ 34 10% distillation temperature, ℃ 69 50% distillation temperature, ℃ 102 90% distillation temperature, ℃ 111 End boiling point, °C 167 The sum of 10% and 50% distillation temperatures, °C 171 Percent loss, % 1.3 Residual percentage, % 1.2 Corrected recovery percentage, % 97.5 freezing point, ℃ <-70.0

Embodiment 2

[0132] Mix 85% by weight of the alkylation unit oil (component A2), 5% of the pentane component oil produced by the reforming unit (component B2) and 10% of the C7 aromatic hydrocarbon component oil (component C2) Evenly, unleaded aviation gasoline is obtained.

[0133] Analysis Project Quality Index Octane number (motor method) 91.2 Research Octane Number 96 Initial boiling point, ℃ 55 10% distillation temperature, ℃ 75 50% distillation temperature, ℃ 105 90% distillation temperature, ℃ 135 End boiling point, °C 165 The sum of 10% and 50% distillation temperatures, °C 180 Percent loss, % 1.3 Residual percentage, % 1.2 Corrected recovery percentage, % 97.5 freezing point, ℃ -60 Sulfur content, mg / kg 5 Net calorific value, MJ / kg 43.5 Volume change, ML 0 Conductivity, ps / m 393 Copper sheet corrosion (100℃, 2h), grade 1a Lead content, g / L <0.0013

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Abstract

The invention relates to lead-free aviation gasoline. The lead-free aviation gasoline contains components as follows: A) 55wt%-90wt% of alkylation unit oil, B) 5wt%-15wt% of pentane component oil, C) 0-20wt% of C7 aromatic component oil, D) 0-15wt% of cumene and E) 0-15wt% of an alkyl ether antiknock agent, wherein the alkylation unit oil is prepared from a reaction product distillate C4 obtained through alkylation of 1-butene and / or 2-butene and iso-butane as well as light components shown in the specification; the content of arylamine compounds in the lead-free aviation gasoline does not exceed 0.5wt%, and further, the lead-free aviation gasoline contains lead which does not exceed 0.01 g / L and contains at least one of the component C and the component D. The gasoline does not contain the arylamine compounds basically, so that environmental pollution caused by the aviation gasoline is greatly reduced, moreover, an octane value and a heat value realize good balance, a net heating value at least reaches 43.5 MJ / kg, and a motor octane value is not smaller than 91.

Description

technical field [0001] The invention belongs to the technical field of fuel application, and relates to a lead-free aviation gasoline and a preparation method thereof. Background technique [0002] With the vigorous development of the national economy and the gradual opening of the low-altitude field, the general aviation industry has shown broad development prospects in China. The market's demand for high-grade aviation gasoline is still increasing, and it is necessary to develop higher-grade aviation gasoline. [0003] At present, the development status of high-grade aviation gasoline in my country is that the grade is low, the quality is unstable, and the adaptability to engines is poor. The promotion of high-grade unleaded aviation gasoline is relatively difficult. Domestic demand for high-grade aviation gasoline is dominated by leaded 91# and 100#, most of which are produced by CNPC Lanzhou Petrochemical Company. [0004] Aviation piston engines require the use of hig...

Claims

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Application Information

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IPC IPC(8): C10L1/04C10L1/185
Inventor 曹晖彭金瑞凌烈祥何启军张书哲金文英张潇玲靳昕
Owner CHINA PETROLEUM & CHEM CORP
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