A biomass hydrogen production catalyst, its preparation method and application

CN117899876BActive Publication Date: 2026-03-13CHINA PETROLEUM & CHEMICAL CORP +1
View PDF 7 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2022-10-12
Publication Date
2026-03-13

AI Technical Summary

Technical Problem

Existing calcium-based absorbents suffer from structural deactivation and easy loss in the process of biomass hydrogen production, which affects their recycling performance. Furthermore, conventional improvement methods are difficult to effectively improve stability and hydrogen yield in fast circulating fluidized beds.

Method used

Using mixed salt solutions as raw materials, nano-calcium-based masterbatches were prepared through differential precipitation and sol-gel methods. Combined with the uniform dispersion of active metal dopants on the surface of the calcium-based masterbatches, a uniform distribution of calcium oxide matrix and active metal oxides was formed, which improved the catalyst's anti-sintering performance and catalytic activity.

Benefits of technology

It significantly improves the cyclic adsorption stability of biomass hydrogen production catalysts, increases hydrogen yield and catalyst stability, and reduces costs.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure 325817DEST_PATH_IMAGE002
    Figure 325817DEST_PATH_IMAGE002
Patent Text Reader

Abstract

This invention discloses a biomass hydrogen production catalyst, its preparation method, and its application. The preparation method first involves mixing calcium salt, a first active metal dopant, a second active metal dopant, and an additive to prepare a raw material reaction solution. The resulting raw material reaction solution system is then adjusted to a pH of 8-10 to form an emulsion rich in calcium-based masterbatch. Finally, the emulsion rich in calcium-based masterbatch is treated at 40-80°C to obtain a gel, which is further dried and calcined to obtain the biomass hydrogen production catalyst. The invention also provides a biomass hydrogen production catalyst prepared using the above method and a method for biomass gasification hydrogen production. The biomass hydrogen production catalyst provided by this invention exhibits significantly improved cyclic adsorption stability and has excellent application prospects in the field of biomass gasification hydrogen production.
Need to check novelty before this filing date? Find Prior Art

Citation Information

Patent Citations

  • Preparation method of modified carbon dioxide calcium-based absorbent

    CN103331096A

  • A high-performance porous calcium-based absorbent and its preparation method

    CN107262018B

  • A calcium-based absorbent for CO2 capture, its preparation method and application

    CN107998829B

  • Calcium based absorbent with high circulation stability and preparation method thereof

    CN108744945A

  • High-activity calcium-based absorbent containing ion transmission channel and preparation method of high-activity calcium-based absorbent

    CN113041833A