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91 # lead-free aviation gasoline and production method thereof

A technology of aviation gasoline and base oil, applied in the petroleum industry, liquid carbon-containing fuel, fuel, etc., can solve the problems of high price, low output, high price of component oil, etc.

Active Publication Date: 2021-12-03
EAST CHINA UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The blending component oil used in this document is alkylation unit oil, pentane component oil, C7 aromatic hydrocarbon component oil, cumene and alkyl ether antiknock agent, there are following problems: (1) in this formula (2) The alkyl ether antiknock agent in this formula is generally methyl tert-butyl ether, which is a common gasoline antiknock agent. However, it is easy to pass through the soil and enter the underground drinking water system. It is stable in nature and difficult to decompose. It will cause certain harm to the human nervous system, stomach and ecological environment; (3) the pentane component oil in this formula It is prepared by refining light naphtha, the output is small, the price is higher than light naphtha and it is not easy to obtain
[0005] To sum up, the existing UL91 aviation gasoline blending uses many types of component oils, and the component oils are expensive and do not meet the ASTM D910 standard

Method used

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  • 91 # lead-free aviation gasoline and production method thereof
  • 91 # lead-free aviation gasoline and production method thereof
  • 91 # lead-free aviation gasoline and production method thereof

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preparation example Construction

[0076] In some embodiments, the preparation method of the aviation gasoline composition of the present invention further includes the step of obtaining blending component A. The step of obtaining the blending component A may be: distilling the alkylation reaction product of C4 olefins and isobutane, and obtaining a component whose initial boiling point and final boiling point meet the requirements of the aforementioned blending component A as a blending group Point A. The composition and distillation range of this component can meet the corresponding requirements for blending component A mentioned above. The temperature of the alkylation reaction can be 4-10°C, the pressure can be 0.4-0.45MPa, and the alkene ratio can be 8-12:1. The alkylation reaction is carried out in the presence of a catalyst. The molar ratio of catalyst to C4 olefin (acid-olefin ratio) can be 1-1.2:1. The catalyst for the alkylation reaction may be an acid, such as one or more selected from sulfonic ac...

Embodiment 1

[0092] 88.9% by mass of the distillation tower side draw oil of the alkylation unit (see Table 1-1 for its properties) and 11.1% by mass of light naphtha produced by a hydrocracking unit (see Table 1-2 for its properties), and then Add other various additives according to Table 1-3, after reconciling evenly, obtain aviation gasoline, the property of this aviation gasoline is shown in the following table 1-4.

[0093] Table 1-1

[0094]

[0095] Table 1-2

[0096]

[0097] Table 1-3

[0098]

[0099]

[0100] Table 1-4

[0101]

Embodiment 2

[0103] 86% by mass of the distillation tower side draw oil of the alkylation unit (see Table 2-1 for its properties) and 14% by mass of light naphtha produced by a hydrocracking unit (see Table 2-2 for its properties), and then Add other various additives according to Table 1-3, after reconciling evenly, obtain aviation gasoline, the property of this aviation gasoline is shown in the following table 2-3.

[0104] table 2-1

[0105]

[0106]

[0107] Table 2-2

[0108]

[0109] Table 2-3

[0110]

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PUM

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Abstract

The invention provides an aviation gasoline composition capable of being used as 91 # lead-free aviation gasoline and a production method thereof, the aviation gasoline composition contains base oil and an additive, and the base oil contains a blending component A, a blending component B and an optional blending component C. The aviation gasoline composition disclosed by the invention meets various index requirements of ASTM D910 standard, ASTM D7547 standard and GB 1787-2018 standard on anti-knock property, evaporability, low-temperature fluidity, stability and the like of 91 # aviation gasoline, meanwhile, the blending components are few, and the components do not need to be highly refined, are cheap and easy to obtain and are wide in source. Besides, the aviation gasoline composition does not contain tetraethyl lead, is environment-friendly, and can meet the requirements of people on environmental protection.

Description

technical field [0001] The invention belongs to the technical field of fuel, and in particular relates to No. 91 unleaded aviation gasoline and a preparation method thereof. Background technique [0002] Aviation gasoline is a high-octane fuel used in aircraft and is an important part of aviation fuel. my country's aviation gasoline mainly uses hydrotreated gasoline as the main component of aviation gasoline. Tetraethyl lead is a colorless transparent oily liquid with a slightly fruity sweet taste, and is widely used as a gasoline additive. The addition of tetraethyl lead increases the octane rating of the fuel to prevent knocking in the engine, thus increasing the efficiency and power of the engine. In view of the fact that the lead emissions caused by the combustion of leaded aviation gasoline account for an increasing proportion of industrial lead emissions, more and more countries have begun to pay attention to unleaded aviation gasoline, and 91 unleaded (UL91) high-qu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10L1/04
CPCC10L1/04
Inventor 杜文莉隆建钱锋钟伟民杨明磊
Owner EAST CHINA UNIV OF SCI & TECH
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