Method for preparing diesel oil component or jet fuel component by using animal and plant oil

Abstract

The invention provides a method for preparing a diesel oil component or jet fuel component by using animal and plant oil. The method comprises the following steps of: (1) dividing the animal and plant oil into at least two parts, introducing the at least two parts of animal and plant oil to a plurality of catalyst beds of a first hydrogenation reactor, and enabling the at least two parts of animal and plant oil and a hydrodeoxygenation catalyst to contact and react to obtain n-alkanes with the carbon number of 8-24; (2) filling an isomerization catalyst in a second hydrogenation reactor, introducing a reaction product obtained in the step (1) to the second hydrogenation reactor, and reducing a condensation point after isomerization reaction to obtain a diesel oil component; or, (3) filling a selective cracking catalyst in the second hydrogenation reactor, introducing the reaction product obtained in the step (1) to the second hydrogenation reactor, and then, carrying out selective hydrocracking and isomerization to obtain a jet fuel blending component. The method provided by the invention is high in jet fuel yield; and the prepared jet fuel blending component is good in quality and can be mixed with the traditional petroleum-based jet fuel according to any proportion so as to be an excellent blending component.

Description

technical field

[0001] The present invention relates to a method for preparing diesel oil components and jet fuel components, more particularly, relates to a method for preparing diesel oil components or jet fuel components by hydrogenation of animal and vegetable oils. Background of the invention

[0002] With the tightening of traditional fossil energy supply and increasing pressure to reduce carbon dioxide emissions, the development of renewable and clean alternative energy has become a global consensus. Due to its renewable and green nature, bioenergy has received special attention in recent years and is considered to be one of the most ideal ways to solve the global energy crisis.

[0003] As the demand for transportation fuel continues to increase, the technology of preparing transportation fuel from renewable animal and vegetable oils has attracted more and more attention. These sources include, but are not limited to, such as: vegetable oils (soybean oil, canola oil...

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