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A method for preparing diesel oil component or jet fuel component from animal and vegetable oil

A technology of animal and vegetable oils and jet fuels, which is applied in the preparation of liquid hydrocarbon mixtures, biological raw materials, and the petroleum industry. high value effect

Active Publication Date: 2015-11-25
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the process of hydrodeoxygenation reaction, the raw material will undergo thermal polymerization reaction to form polymer when heated, which will block the catalyst bed and affect the use of the catalyst.

Method used

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  • A method for preparing diesel oil component or jet fuel component from animal and vegetable oil
  • A method for preparing diesel oil component or jet fuel component from animal and vegetable oil
  • A method for preparing diesel oil component or jet fuel component from animal and vegetable oil

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0059] (1) Hydrodeoxygenation: take palm oil obtained through traditional vegetable oil refining methods as raw material, and add thiophene with a sulfur content of 1000ppm to the raw material. The first hydrogenation reactor was loaded with RN-10 catalyst. Among them, the catalyst is loaded in two stages, the loading amount of the first stage of the catalyst is 45%, the raw material is divided into two feeds, and the ratio of the first feed is 45%; the normal paraffin part obtained by hydrodeoxygenation is used as the circulating oil It returns to the first hydrogenation reactor together with the raw material, and the volume ratio of the circulating oil to the raw material is less than 1.8:1. Then the dilution ratio of each catalyst zone is 4:1. After palm oil is completely deoxygenated, it is mainly normal alkanes with 13-20 carbon atoms.

[0060] (2) Hydroisomerization: catalyst A is filled in the second hydrogenation reactor, and the n-alkanes of 13 to 20 after hydrodeox...

Embodiment 2

[0063] (1) The catalyst used in the hydrodeoxygenation process and the raw oil are the same as the step (1) of embodiment 1, the difference is that the catalyst is packed in three stages, the loading of the first stage of the catalyst is 30%, and the filling of the second stage The amount is 35%, and the rest is the third paragraph. The raw material is divided into 3 feeds, the ratio of the first feed is 30%, and the ratio of the second feed is 35%; For the hydrogen reactor, the volume ratio of circulating oil to raw material is 1.8:1. Then the dilution ratio of each catalyst zone is 6:1. After palm oil is completely deoxygenated, it is mainly normal alkanes with 13-20 carbon atoms.

[0064] (2) Hydroisomerization: Catalyst A is filled in the second hydrogenation reactor, and the n-alkanes and hydrogen of 13 to 20% after hydrodeoxygenation obtained in step (1) are introduced into the second hydrogenation reactor, and hydrogenation The isomerization reaction is carried out u...

Embodiment 3

[0067] The hydrodeoxygenation process of step (1) and the selective cracking and isomerization process of step (2) are all the same as in Example 1, except that the reaction raw material is a mixture of palm oil and lard, wherein palm oil and lard The weight ratio is 80:20. After the reaction, the stream is subjected to fractional distillation to obtain a diesel component with a cold filter point of -6°C. The properties of raw materials are shown in Table 1, and the properties of operating conditions and products are shown in Table 2.

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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...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10G3/00
CPCY02P30/20
Inventor 渠红亮张占柱夏国富孟祥堃
Owner CHINA PETROLEUM & CHEM CORP
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