Method for preparing jet fuel blending component by using animal and vegetable oils as raw materials

A jet fuel, animal and vegetable oil technology, applied in the field of preparation of jet fuel blending components, can solve problems such as atmospheric environmental pollution, achieve high calorific value, clear and transparent appearance, and low freezing point

Active Publication Date: 2013-04-24
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] On the other hand, traditional jet fuel contains sulfur, nitrogen, aromatics, etc., and its large consumption will inevitably pollute the atmospheric environment

Method used

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  • Method for preparing jet fuel blending component by using animal and vegetable oils as raw materials
  • Method for preparing jet fuel blending component by using animal and vegetable oils as raw materials
  • Method for preparing jet fuel blending component by using animal and vegetable oils as raw materials

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] Coconut oil is used as the raw material, and the final diesel by-product is not re-refined. The reaction conditions are shown in Table 1.1, the product properties are shown in Table 1.2, and the raw material properties are shown in Table 3. Jet fuel yield was 41.5% by weight.

[0045] The reagents used in the preparation of catalysts were all chemically pure.

[0046]Wherein, the preparation method of the catalyst used in the first hydrogenation reactor is: take by weighing 2000 grams of aluminum hydroxide powder (70% by weight on a dry basis) and 631 grams of silica sol containing 25% by weight of silicon dioxide and mix them with an extruder to extrude Form a clover-shaped strip with a circumscribed circle diameter of 1.3 mm, dry the obtained clover-shaped strip at 120° C. for 4 hours and then bake it at 600° C. for 3 hours to obtain a carrier A. The silicon oxide content in the carrier A is 10.1% by weight. 200 g of the support A was impregnated with 176 ml of an aq...

Embodiment 2

[0056] Adopt the same reactor and catalyst as Example 1, and the difference of Example 1 is that the raw material adopts the mixed oil of 70% by weight of palm oil and 30% by weight of lard, and the first hydrogenation reactor is provided with 3 hydrogenation Treat the catalyst bed, inject cold hydrogen between two adjacent catalyst beds to control the reaction temperature, 50% of the liquid hydrocarbon product obtained in the first hydrogenation reactor is mixed with the raw material and returned to the top of the reactor, and the reaction conditions are as shown in Table 2.1 The product properties are shown in Table 2.2. The properties of raw materials are shown in Table 3. Jet fuel yield was 39.8% by weight.

[0057] Table 2.1 Example 2 Operating Conditions

[0058]

[0059] Table 2.2 Product Properties of Example 2

[0060] Numbering

3 # jet fuel standard

Example 2

freezing point, ℃

-47 (highest)

-62.2

Flash point, °C

3...

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Abstract

A method for preparing a jet fuel blending component by using animal and vegetable oils as raw materials comprises the following steps of: placing animal and vegetable oils in a first hydrogenation reactor, under the existence of hydrogen, contacting with a hydrogenation treatment catalyst, carrying out hydrodeoxygenation reaction; enabling the hydrocarbon liquid material obtained after the reaction to flow into a middle fractionating tower, feeding the C16-C24 fraction obtained after fractionating into a second hydrogenation reactor from the top part thereof, under the existence of hydrogen, carrying out selective cracking reaction at a cracking stage, and then carrying out isomerization reaction at an isomerization stage, feeding the C6-C15 fraction obtained after fractionating into the isomerization from the middle part and carrying out the isomerization reaction; enabling the hydrocarbon liquid material obtained after the reaction in the second hydrogenation reactor to flow into a product fractionating tower and fractionating so as to obtain the jet fuel blending component. The product prepared by the method provided by the invention is high in yield; the prepared jet fuel blending component is clear and transparent in appearance, excludes sulfur, excludes aromatic hydrocarbon, is low in freezing point and high in calorific value; and the jet fuel blending component compared with the petroleum based jet fuel in the prior art can be mixed according to optional ratios, thus being an excellent blending component.

Description

technical field [0001] The invention belongs to a preparation method of alternative jet fuel. More specifically, it is a method for preparing jet fuel blending components from animal and vegetable oils in the presence of hydrogen and a catalyst. Background technique [0002] With the rapid development of my country's aviation industry and the acceleration of national defense construction, the demand for jet fuel is increasing. At the same time, my country's dependence on oil imports is increasing year by year, which poses a potential threat to national defense security. From the perspective of meeting the needs of my country's aviation industry and national defense, the development of alternative jet fuels has important strategic significance. [0003] On the other hand, traditional jet fuel contains sulfur, nitrogen, aromatics, etc., and its large consumption will inevitably pollute the atmospheric environment. In addition, CO released from the production and combustion ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G3/00
CPCY02P30/20
Inventor 周金良孟祥堃渠红亮
Owner CHINA PETROLEUM & CHEM CORP
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