A preparation method of a liquid-phase hydrorefining catalyst for crude creosote
By using fly ash and pseudoboehmite to prepare a support, and combining an appropriate ratio of nickel, manganese, zinc, and calcium salts with the addition of n-hexane, the problems of high catalyst cost and insufficient stability were solved, and a highly efficient liquid-phase hydrogenation purification process of octanol was realized.
CN120205170BActive Publication Date: 2026-03-24NINGBO JINYUANDONG PETROCHEM ENG TECH
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Patent Information
- Application Number
- CN202510389830.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-31
- Publication Date
- 2026-03-24
- Estimated Expiration
- 2045-03-31
AI Technical Summary
Technical Problem
The existing crude octanol liquid-phase hydrogenation catalysts have high preparation costs, and their stability and selectivity need to be improved.
Method used
A catalyst was prepared by using fly ash and pseudoboehmite as carrier raw materials, and by pretreatment and appropriate proportions of nickel salt, manganese salt, zinc salt and calcium salt as active components and auxiliary components, combined with the addition of n-hexane.
Benefits of technology
It reduces the preparation cost of catalysts, improves their stability and selectivity, and is suitable for industrial production.
✦ Generated by Eureka AI based on patent content.
Abstract
The application discloses a preparation method of a catalyst for liquid-phase refining of crude octanol, and the preparation method comprises the following steps: (1) mixing pretreated fly ash and pseudo-boehmite, adding deionized water and nitric acid, stirring until a colloid is formed, drying the colloid, mixing the dried colloid with kaolin, and obtaining a carrier through kneading, extrusion molding, drying and calcination; (2) taking a nickel salt, a manganese salt and a zinc salt as active components, taking a calcium salt as an auxiliary component, dissolving the active components and the auxiliary component in deionized water to obtain a salt solution, adding n-hexane into the salt solution and stirring uniformly to prepare an impregnation solution, immersing the carrier in the impregnation solution, and obtaining the catalyst through washing, drying and calcination. The catalyst prepared by the method is mainly used in a liquid-phase refining reaction process of crude octanol, and has high activity stability and selectivity.
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