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Composite support hydrodesulfurization catalyst

A hydrodesulfurization and catalyst technology, which is applied in the field of composite carrier catalysts and hydrodesulfurization catalysts, can solve the problems of large equipment investment, high operating costs, and lower octane number of gasoline, and achieve the effect of increasing service life

Inactive Publication Date: 2017-01-11
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

However, the hydroprocessing method has the following disadvantages: (1) equipment investment is large; (2) the reaction conditions of hydrodesulfurization are harsh, and the operating cost is high; (3) olefins are prone to saturation under hydrodesulfurization conditions, which not only consumes a Hydrogen, and lower gasoline octane

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 50 mm, the catalyst bed temperature is measured with a UGU808 temperature control meter, and the raw material light oil is manufactured by Beijing Satellite Manufacturing Plant The double-plunger micropump continuously transports the hydrogen gas from a high-pressure cylinder and controls the flow rate with a Beijing Qixing Huachuang D07-11A / ZM gas mass flow meter. The catalyst loading is 2kg. The reacted product is cooled in a water bath for gas-liquid separation.

[003...

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 still had a research octane rating of 94, while the total sulfur content was reduced to 3 ppm.

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PUM

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Abstract

The invention discloses a composite support hydrodesulfurization catalyst. The catalyst comprises a support and an active component and the support is a composite or mixture of MSU-G, SBA-15 and HMS; the active component is a mixture of molybdenum nitride (MO2N), tungsten nitride (W2N), molybdenum carbide (Mo2C) and tungsten carbide (WC), and the total content of the active components accounts for 1%-15% of the weight of the support. By means of the catalyst, the total sulfur content of FCC gasoline can be reduced to be 5 ppm or below, and the gasoline national 5 standard can be met. Meanwhile, by means of the catalyst, the octane number of the FCC gasoline is not obviously reduced.

Description

technical field [0001] The invention relates to the technical field of catalysts, in particular to a hydrodesulfurization catalyst, and more preferably to a composite carrier catalyst for hydrodesulfurization of FCC gasoline and reducing the decrease in octane number. Background technique [0002] In the 21st century, the demand and use of fuel oil have increased significantly, and the environmental pollution caused by sulfur compounds in it has attracted people's attention. Sulfur oxides (SO x ) into the air, producing acid rain and sulfuric acid smog pollution, etc., resulting in air pollution. [0003] Sulfur is a harmful substance that exists in gasoline in nature. More than 80% of the sulfur in finished gasoline comes from catalytic cracking (FCC) gasoline. As crude oil continues to become heavier, the sulfur content in FCC gasoline will continue to increase. Foreign gasoline generally comes from FCC (34%), catalytic reforming (33%), and alkylation, isomerization and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J29/04B01J35/10C10G45/12
CPCC10G45/12B01J29/005B01J29/0308B01J35/60
Inventor 朱忠良
Owner 锡山区绿春塑料制品厂