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A kind of endothermic aviation fuel and preparation method thereof

A kind of aviation fuel and fuel technology, applied in the chemical field, can solve the problems of low heat sink value of fuel, incompatibility of fuel heat sink value and anti-coking performance, easy coking of fuel, etc., to achieve high heat sink value, improved performance, good Effect of anti-coking properties

Active Publication Date: 2020-08-04
TIANJIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The difficulty faced in this field is that the heat sink value and anti-coking performance of the fuel cannot be combined. When the heat sink value is high, the fuel is easy to coke; when the anti-coking performance is good, the heat sink value of the fuel is low.
[0005] It is the most economical method to further process the existing jet fuel to obtain high-performance aviation fuel, but there is no corresponding report at home and abroad.

Method used

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  • A kind of endothermic aviation fuel and preparation method thereof
  • A kind of endothermic aviation fuel and preparation method thereof
  • A kind of endothermic aviation fuel and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Aviation fuel was prepared from RP-3-1# jet fuel.

[0036] hydrogenation reaction

[0037] RP-3-1# jet fuel was subjected to hydrogenation saturation treatment with a commercially available hydrorefining catalyst (FH-98): hydrogen partial pressure 6MPa, hydrogen-to-oil ratio (volume) 500, space velocity 1.0h-1, temperature 280 °C, the hydrogenation treatment makes the bromine value of the obtained fuel sample less than 0.2gBr / 100g, and the aromatic hydrocarbon content is not more than 2wt%.

[0038] Distillation separation

[0039] Carry out rectification under reduced pressure (vacuum degree-94.6kPa) to the fuel sample obtained by hydrogenation saturation treatment, collect the distillate that actual distillation range is more than or equal to 180 ℃, namely obtain the aviation fuel of high thermal stability (embodiment 1 product), performance test The results are shown in Table 2.

Embodiment 2

[0041] Aviation fuel was prepared from RP-3-2# jet fuel.

[0042] Hydrogenated Saturation:

[0043] Hydrogenation saturation treatment of RP-3-2# jet fuel was carried out with a commercially available hydrorefining catalyst (FH-98): hydrogen partial pressure 6MPa, hydrogen-to-oil ratio (volume) 500, space velocity 1.0h -1 , the temperature is 300-315° C., and the hydrogenation saturation treatment makes the aromatic hydrocarbon content of the obtained fuel sample not more than 3%.

[0044] Distillation separation

[0045] The fuel sample obtained by hydrosaturation treatment was subjected to vacuum rectification, and the fraction whose actual distillation range was above 175° C. was collected to obtain high thermal stability aviation fuel (the product of Example 2). The performance test results are shown in Table 2.

Embodiment 3

[0047] Aviation fuel is prepared from RP-3-3# jet fuel.

[0048] hydrogenation reaction

[0049] RP-3-3# jet fuel was subjected to hydrogenation saturation treatment with a commercially available hydrotreating catalyst (FH-98): hydrogen partial pressure 6MPa, hydrogen-to-oil ratio (volume) 500, space velocity 0.5h -1 . The temperature is 310-315° C., and the hydrogenation saturation treatment makes the aromatic content of the obtained fuel sample not greater than 4%, and the sulfur content not greater than 5ppm.

[0050] Distillation separation

[0051] The fuel sample obtained by hydrosaturation treatment was subjected to vacuum rectification, and the fraction whose actual distillation range was above 175° C. was collected to obtain high thermal stability aviation fuel (the product of Example 3). The performance test results are shown in Table 2.

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Abstract

The invention discloses an endothermic aviation fuel. According to the endothermic aviation fuel, a flashing point is higher than 60 DEG C, a fuel net heating value is larger than 43.0 MJ / kg, a heat sink at 750 DEG C is larger than or equal to 3.4 MJ / kg, and the thermal stability passes a JFTOT test at 355 DEG C in 300 minutes; the aviation fuel is prepared from larger than or equal to 30wt% of alkane and larger than or equal to 50wt% of cyclane, the aromatic hydrocarbon content is less than 5wt%, a bromine number is 0, and the sulphur content is less than 1 ppm. The endothermic aviation fuelhas the characters of high thermal stability, high heat value, low volatility, high heat sink and better anti-coking performance; after a compound additive is added, the performance of the aviation fuel can be further improved, especially, the anti-coking performance of the fuel at high temperatures is obviously improved.

Description

technical field [0001] The invention belongs to the technical field of chemistry, and in particular relates to a heat-absorbing aerospace fuel and a preparation method thereof. Background technique [0002] With the rapid development of the aviation industry, the quality requirements for aviation fuel are also increasing. Traditional jet fuel contains a large amount of unsaturated components such as aromatics and olefins, and a small amount of impurities such as sulfur and nitrogen, which seriously affects the high-temperature thermal stability of the fuel; at the same time, the existing aviation fuel has a wide distillation range and a low flash point , low volumetric calorific value, poor heat transfer performance, and severe high-temperature coking, it is difficult to meet the needs of the new generation of aircraft engines and aerospace engines. It is urgent to develop an absorbent with high thermal stability, high calorific value, low volatility, and high heat transfer ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10L1/04C10L1/10C10L1/183C10L1/185C10L1/24C10L1/26C10G67/02
CPCC10G67/02C10G2300/202C10L1/04C10L1/10C10L1/1832C10L1/1852C10L1/2406C10L1/2641
Inventor 张香文王庆法刘国柱刘林林
Owner TIANJIN UNIV
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