Super oil for aviation gasoline and preparation method thereof

Abstract

The invention discloses super oil for aviation gasoline and a preparation method thereof. The super oil comprises the following steps: S1, reaction effluent of an alkylation device enters a front distillate separation tower, is heated by a tower reboiler to raise the temperature at the bottom of the tower, and steam return water returns to a steam condensate tank; S2, when the temperature of the top of the tower rises to 46 DEG C, cooling is performed, a tower top liquid enters a reflux tank, and then a reflux pump is started for reflux operation; and S3, separated front distillate is at the tower top, and the separated front distillate is transported to a product tank farm by a pump. According to the method, three super oil separation towers are connected in series, and high-efficiency mass transfer fillers are used to completely separate various substances in the reaction product, so that accurate separation is realized. The quality of each obtained substance is qualified, so that qualified super oil is obtained; and the super oil rectification separation system meets various technical requirements, can be used for the production of the aviation gasoline, meets the requirements of aviation aircrafts in flight, reduces the waste of resources, and protects the environment.

Description

technical field [0001] The invention relates to the technical field of aviation fuel, in particular to a super oil used for aviation gasoline and a preparation method thereof. Background technique [0002] Rectification is usually carried out in a rectification column, and the gas-liquid two-phase contacts through countercurrent for interphase heat and mass transfer. The volatile components in the liquid phase enter the gas phase, and the less volatile components in the gas phase transfer to the liquid phase, so that almost pure volatile components can be obtained at the top of the tower, and almost pure less volatile components can be obtained at the bottom of the tower. The feed liquid is added from the middle of the tower, and the tower section above the feed inlet further enriches the volatile components in the ascending vapor, which is called the rectification section; the tower section below the feed inlet extracts the volatile components from the descending liquid. i...

AI Technical Summary

Problems solved by technology

[0003] The aviation gasoline unit uses the high-octane isooctane (alkylated oil) produced by the alkylation workshop as a raw material to enter the aviation gasoline unit for simple fractionation and cutting, and the super oil is extracted from the alkylated oil , is an oil product with a specific distillation range, and requires high separation accuracy. At the same time, alkylate oil is composed of hundreds of substances, and the boiling points of each substance are close. The target product has a narrow distillation range and is difficult to separate, resulting in the quality of the separated product. If it is not guaranteed, there will be a waste of resources when using it, and it cannot meet the needs of aviation aircraft during flight, so it needs to be improved

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