A method for preparing an organosulfur hydrogenation catalyst

By treating the alumina support with inorganic and organic acids and combining it with compounds containing molybdenum, iron, or nickel to prepare an organic sulfur hydrogenation catalyst, the problems of removing organic sulfur from crude benzene and utilizing sulfur resources have been solved, improving product quality and equipment lifespan, while also achieving efficient sulfur recovery.

CN122076469APending Publication Date: 2026-05-26JIANGXI HUANYU IND CERAMICS TECHNOLOGY RESEARCH CO LTD +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
JIANGXI HUANYU IND CERAMICS TECHNOLOGY RESEARCH CO LTD
Filing Date
2026-02-24
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

Existing technologies are insufficient to effectively remove organic sulfur from crude benzene, leading to decreased product quality, equipment damage, and environmental risks, while sulfur resources are not being utilized efficiently.

Method used

An organic sulfur hydrogenation catalyst is prepared by treating an alumina support with inorganic and organic acids and then mixing it with compounds containing molybdenum, iron, or nickel through a sulfidation reaction. This process expands the microporous structure of the support and improves the dispersibility of the active components, thereby promoting synergistic catalytic performance.

Benefits of technology

This technology enables efficient removal of organic sulfur from crude benzene, improves the purity of benzene products, extends equipment life, reduces environmental risks, and achieves efficient sulfur recovery and utilization.

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Abstract

This invention provides a method for preparing an organic sulfur hydrogenation catalyst. The method involves: drying an alumina support at 105°C for at least 2 hours to obtain a dried alumina support; preparing a solution A using organic acid, inorganic acid, and water; placing the dried alumina support in solution A and stirring for at least 2 hours, followed by solid-liquid separation; drying the separated solid at 105°C to obtain a modified alumina support B; preparing a solution C using a molybdenum-containing compound, compound A, organic acid, and water; mixing the modified alumina support B and solution C at a ratio of 1:(2-5) and stirring for at least 2 hours, followed by drying at 105°C to obtain a semi-finished organic sulfur hydrogenation catalyst D; and subjecting the semi-finished catalyst D to a sulfidation reaction in a mixed gas for 10-60 minutes to obtain the finished organic sulfur hydrogenation catalyst.
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