Hydrodesulfurization catalyst

A hydrodesulfurization and catalyst technology is applied in the field of hydrodesulfurization catalysts, FCC gasoline hydrodesulfurization catalysts and the reduction of octane number reduction, which can solve the problems of high consumption of hydrogen, easy saturation of olefins, and large equipment investment.

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, a

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] The catalyst was prepared by impregnation method, and the carrier was doped Cu 2+ SAPO-5, Cu 2+ The doping amount in SAPO-5 is controlled at 0.65% of the carrier mass. 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.

[0042] 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 ga...

Embodiment 2

[0047] The catalyst was prepared by impregnation method, and the carrier was doped Cu 2+ SAPO-5, Cu 2+ The doping amount in SAPO-5 is controlled at 0.7% of the carrier mass. 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.

[0048] All the other conditions are the same as in Example 1.

[0049] The final product was tested and its research octane number was still 93.9, while the total sulfur content was reduced to 4ppm.

Embodiment 3

[0074] The catalyst contains catalytic promoter Cr 2 o 3 , ZrO 2 , CeO 2 , V 2 o 5 and NbOPO 4 , its content is respectively 1%, 2%, 1.5%, 1% and 3%, all the other are identical with embodiment 1.

[0075] The final product was tested, and after it was used for 3 months, the pressure drop of the catalyst bed did not change, which was 14.9% lower than the pressure drop of the catalyst bed in Example 1 for the same use time.

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PUM

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Abstract

The invention discloses a hydrodesulfurization catalyst. The hydrodesulfurization catalyst comprises a carrier, an active component and a catalysis aid, wherein the carrier is SAPO-5 with a synthetic skeleton structure doped with a heteroatom Cu<2+>, and the doping amount is 0.56%-0.75% by weight of SAPO-5; the active component is a mixture of dimolybdenum nitride MO2N, tungsten nitride W2N, molybdenum carbide Mo2C and wolfram carbide WC; the total content of the active component is 1%-15% of the weight of SAPO-5; and the catalysis aid is a mixture of Cr2O3, ZrO2, CeO2, V2O5 and NbOPO4. According to the hydrodesulfurization catalyst, the total sulfur content of FCC gasoline can be decreased below 10 ppm, so as to meet China 5 standard; and meanwhile, the octane value of the FCC gasoline is not obviously decreased.

Description

technical field [0001] The invention relates to the technical field of catalysts, in particular to a hydrodesulfurization catalyst, more preferably to a catalyst for hydrodesulfurization of FCC gasoline and reducing the range of octane number reduction. 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 etherification ...

Claims

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Application Information

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IPC IPC(8): B01J29/85C10G45/12
CPCB01J29/85B01J2229/18C10G45/12C10G2300/202C10G2300/305C10G2300/70C10G2400/02
Inventor 朱忠良
Owner 锡山区绿春塑料制品厂
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