Preparation method for hydrogenation catalyst for polycyclic aromatic hydrocarbons, catalyst and application thereof

A technology for hydrogenation catalysts and polycyclic aromatic hydrocarbons, applied in chemical instruments and methods, physical/chemical process catalysts, molybdenum sulfide, etc. High selectivity and other issues, to achieve the effect of high hydrodesulfurization activity

Active Publication Date: 2016-07-20
DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the catalyst and its application method have the advantages of high conversion depth of polycyclic aromatic hydrocarbons, high yield of single-ring aromatic hydrocarbons, high selectivity of single-ring aromatic hydrocarbons, and slow catalyst deactivation rate, as a noble metal catalyst, it does not involve the resistance to sulfur poisoning of the catalyst performance

Method used

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  • Preparation method for hydrogenation catalyst for polycyclic aromatic hydrocarbons, catalyst and application thereof
  • Preparation method for hydrogenation catalyst for polycyclic aromatic hydrocarbons, catalyst and application thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0025] Catalyst preparation:

[0026] Prepare aqueous solution A containing ammonium tetrathiomolybdate (ATTM), the concentration of ATTM is 0.15mol / L. Prepare aqueous solution B containing hydrazine hydrate, the concentration of hydrazine hydrate is 16mol / L. A mixture C containing nonionic surfactant, n-hexanol and cyclohexane was prepared, wherein the nonionic surfactant was 10.6 g, n-hexanol was 8.0 g and cyclohexane was 13.3 g. Add 4ml of ATTM aqueous solution A to mixture C under stirring, and stir for 30 minutes to obtain stable microemulsion D. Add 1 ml of hydrazine hydrate aqueous solution B to the above microemulsion D, and stir for 30 minutes to obtain stable microemulsion E. The microemulsion E was transferred into an autoclave, sealed and left to crystallize at 185°C for 24 hours. Cool down to room temperature naturally after taking it out. After filtering, washing with deionized water and absolute ethanol three times, and vacuum drying at 70 °C for 12 h, the b...

Embodiment 2

[0029] Add 0.075g of the molybdenum disulfide catalyst prepared in Example 1 (5% by weight based on anthracene) into the 100mL autoclave reactor of the slurry bed reaction system, and then add 1.5g of anthracene and 28.5g of n-hexadecane. After loading the kettle, replace the air with hydrogen 3 times (close the exhaust valve first, then open the intake valve each time, pressurize with 100ml / min hydrogen to 2MPa, then close the intake valve, and then open the exhaust valve to empty.), boost the pressure to 4MPa, then raise the temperature to 325°C, and carry out the hydrogenation reaction at a stirring speed of 300r / min for 4 hours.

Embodiment 3

[0031] Add 0.075g of the molybdenum disulfide catalyst prepared in Example 1 (5% by weight based on anthracene) into the 100mL autoclave reactor of the slurry bed reaction system, and then add 1.5g of anthracene and 28.5g of n-hexadecane. After filling the kettle, replace the air with hydrogen for 3 times (the replacement operation is the same as in Example 2), increase the pressure to 4MPa, and then raise the temperature to 350°C, and carry out the hydrogenation reaction for 4 hours at a stirring speed of 300r / min.

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Abstract

The invention provides a hydrogenation catalyst for polycyclic aromatic hydrocarbons. The hydrogenation catalyst is a molybdenum disulfide (MoS2) catalyst prepared in a microemulsion system. The molybdenum disulfide catalyst provided by the invention has the advantages of sulfur tolerance, high hydrodesulfurizing activity, high polycyclic-aromatic-hydrocarbon hydrogenation activity, simplicity in process operation, and the like.

Description

technical field [0001] The invention relates to a method for preparing polycyclic aromatic hydrocarbon hydrogenation catalyst molybdenum disulfide and its application in polycyclic aromatic hydrocarbon hydrogenation reaction. Background technique [0002] Crude oil resources are becoming increasingly heavy and inferior. One of the characteristics is that the content of aromatics in crude oil is gradually increasing, especially the content of aromatics in heavy oil fractions is gradually increasing. Excessive aromatic hydrocarbons not only reduce the energy efficiency of fuel, but also pollute the environment. At the same time, aromatic hydrocarbons themselves are a class of carcinogens, which seriously threaten human health. [0003] In recent years, the proportion of high-sulfur and heavy crude oil processed by refineries has been increasing and the global demand for light oil products has gradually increased. How to efficiently utilize petroleum resources and achieve green...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J27/051C01G39/06C10G49/04
Inventor 潘振栋田志坚姜玉霞马怀军曲炜王冬娥王从新李鹏
Owner DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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