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Aviation kerosene hydrorefining technology

A technology for hydrorefining and aviation kerosene, which is applied in the petroleum industry, refining hydrocarbon oil, processing hydrocarbon oil, etc., and can solve the problems that catalysts and hydrogenation conditions are difficult to apply or cannot be applied.

Inactive Publication Date: 2016-12-14
锡山区绿春塑料制品厂
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] However, the existing hydrofining processes are all set for the previous high-quality clean oil
For the straight-run kerosene produced from crude oil with high sulfur content, due to its high sulfur content, the catalysts and hydrogenation conditions used are difficult to apply. The production meets the requirements and the setting is to reduce the sulfur content to below 10ppm, which is no longer applicable.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] The catalyst was prepared by impregnation method, and the carrier was a mixture of MSU-G, SBA-15 and HMS, and the mixing ratio was 1:1.1:0.5. The active component molybdenum nitride MO 2 N, tungsten nitride W 2 N, molybdenum carbide Mo 2 The total content of C and tungsten carbide WC is 10% of the mass of the carrier, and their molar ratio is 1:0.4:0.3:0.8.

[0038] The catalyst is loaded into a fixed bed reactor, the reaction tube of the reactor is made of stainless steel with an inner diameter of 50mm, the catalyst bed is set to 3 layers, the temperature of the catalyst bed is measured with a UGU808 temperature control meter, and the raw material aviation kerosene The double-plunger micropump manufactured by Beijing Satellite Manufacturing Plant is continuously transported. The hydrogen is supplied by a high-pressure cylinder and the flow rate is controlled by a Beijing Qixing Huachuang D07-11A / ZM gas mass flow meter. The catalyst loading is 2kg. The reacted produc...

Embodiment 2

[0043] The catalyst is prepared by the impregnation method, and the carrier is a mixture of MSU-G / SBA-15 complex, MSU-G / HMS and SBA-15 / HMS complex, wherein the ratio of MSU-G, SBA-15 and HMS is the same as in the example 1 is the same. The active component molybdenum nitride MO 2 N, tungsten nitride W 2 N, molybdenum carbide Mo 2 The total content of C and tungsten carbide WC is 10% of the mass of the carrier, and the molar ratio is 1:0.6:0.45):1.2.

[0044] All the other conditions are the same as in Example 1.

[0045] The final product was tested and the total sulfur content was reduced to 4 ppm and the total basic nitrogen content was reduced to 5 ppm.

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Abstract

The invention discloses an aviation kerosene hydrorefining technology. A fixed bed reactor is adopted in the technology. A hydrogenation, desulfurization, and denitrification catalyst is filled in the fixed bed reactor. The catalyst comprises a carrier and an active component. The carrier is a composite or mixture of MSU-G, SBA-15, and HMS. The active component is a mixture of dimolybdenum nitride (Mo2N), tungsten nitride (W2N), tungsten nitride carbide (Mo2C), and tungsten carbide (WC). The reaction conditions of the fixed bed reactor are: reaction temperature 260 to 320 DEG C, hydrogen partial pressure 2.8 to 3.6 MPa, hydrogen / oil volume ratio 150-250, and volume space velocity 2.0 to 4.0 h<-1>. The provided technology can control the content of total sulfur in aviation kerosene to be less than 5 ppm. At the same time, the content of total nitrogen in aviation kerosene is controlled to be less than 10 ppm.

Description

technical field [0001] The invention relates to an aviation kerosene hydrogenation desulfurization refining process, in particular to an aviation kerosene hydrogenation desulfurization refining process using a specific catalyst. Background technique [0002] Aviation kerosene is one of petroleum products. English name Jet fuel No.3, alias jet fuel. It is mainly composed of hydrocarbon compounds of different fractions. Aviation kerosene is mainly used as fuel for aviation turbine engines. [0003] As the transportation industry has a stronger and stronger role in stimulating the economy, my country's transportation industry has developed rapidly in recent years. Judging from the consumption statistics of the National Bureau of Statistics, my country's jet fuel consumption in 2008 was 12.799 million tons, an increase of 3.6% compared with the consumption in the same period of 2007. , my country imported a total of 6.478 million tons of jet fuel in 2008, a year-on-year incre...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G45/12B01J29/00
CPCC10G45/12B01J29/005B01J29/0308B01J29/041C10G2300/202
Inventor 朱忠良
Owner 锡山区绿春塑料制品厂
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