一种氨分解制氢修饰型整体式催化剂制备方法及其应用

The monolithic catalyst preparation method modified with alumina and titanium components solves the problem of insufficient activity and stability of existing ammonia decomposition hydrogen production catalysts at high temperatures, and provides a more efficient ammonia decomposition hydrogen production process suitable for fixed-bed reactors.

CN118384877BActive Publication Date: 2026-07-17HAINAN WEICHEN NEW ENERGY CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
HAINAN WEICHEN NEW ENERGY CO LTD
Filing Date
2024-04-10
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

There is limited research on monolithic catalysts used in ammonia decomposition for hydrogen production under high temperature and high gas flow conditions. The catalytic performance is not ideal, and the catalyst composition optimization is insufficient, which limits the application scope of ammonia decomposition for hydrogen production.

Method used

By modifying the bulk carrier with alumina and treating it with soaking, calcination and protective solution, combined with titanium component modification, a ruthenium-alumina-bulk material was prepared to form an integral catalyst, which improves catalytic activity and stability.

Benefits of technology

It achieves improved catalyst stability and activity under high-temperature conditions, is suitable for fixed-bed reactors, provides more choices of catalytic materials, reduces gas pressure drop, and improves the efficiency of ammonia decomposition for hydrogen production.

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Abstract

本发明公开了一种氨分解制氢修饰型整体式催化剂制备方法及其应用,其中修饰型整体式催化剂制备包含以下步骤:块体载体的氧化铝修饰、氧化铝附着钌组分、活性金属组分的保护、钛组分浸泡、水气处理与干燥、进行多次循环钛修饰及产品焙烧。催化剂用于催化氨分解制氢工艺是以固定床反应器工艺为技术路线,进行氨分解制氢的氢气生产。本发明为氨分解制氢领域提供一种新类型的催化材料,相关修饰工艺提高了氨分解制氢催化剂在高温下的催化效率稳定性,为长周期连续生产奠定基础。
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