A kind of modified kerosene composition
A kind of composition, kerosene technology, applied in kerosene composition, improved antiknock performance fuel field, can solve the problem of no antiknock agent addition and the like
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Embodiment 1
[0016] No. 3 jet fuel and xylene meeting GB6537-2006 are added into the container, wherein No. 3 jet fuel accounts for 87% of the total mass, and then mixed uniformly to form a modified kerosene composition, the flash point index of the modified kerosene composition is 40°C, the freezing point index is less than -70°C, it is used for bench test of ignition heavy oil piston engine. Compared with No. 3 aviation kerosene, the limit detonation power increased by 2.0%. The test results are shown in Table 1.
[0017] This test is a horizontally opposed four-cylinder water-cooled four-stroke aviation piston engine in-cylinder direct injection test prototype. In order to protect the safety of the engine, the experimental program selects the engine speed as 2500 rpm, the throttle opening as 36%, and the mixture concentration as 0.90 (power mixture concentration), and compares the height of the maximum ignition advance angle without knocking when different fuels are used. .
Embodiment 2
[0019] Add No. 3 jet fuel and isobutenylamide isoheptyl ester conforming to GB6537-2006 into the container, wherein No. 3 jet fuel accounts for 95% of the total mass, and then mix uniformly to form a modified kerosene composition. The modified kerosene composition The flash point index is 46°C, and the freezing point index is less than -66°C, which is used for bench test of ignition heavy oil piston engine. The test method is the same as in Example 1. Compared with No. 3 aviation kerosene, the limit detonation power has been improved by 6.5%. The test results are shown in Table 1.
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