A calcium-rich hydroxyl-structural basic center porous carbon material and a preparation method and application thereof
By in-situ co-assembling nitrogen-doped calcium hydroxyl structural base-center porous carbon materials, the problems of insufficient low-temperature activity and single function of existing desulfurization materials are solved. Multifunctional synergistic removal of H2S selective oxidation, COS hydrolysis and SO2 adsorption is achieved, which has the characteristics of high efficiency, low cost and stability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- FUZHOU UNIV
- Filing Date
- 2026-04-28
- Publication Date
- 2026-07-17
AI Technical Summary
Existing desulfurization materials have insufficient low-temperature catalytic activity, their active sites are prone to aggregation, their functions are limited, and their preparation processes are complex, making it difficult to achieve multifunctional synergistic removal of H2S through selective oxidation, COS hydrolysis, and SO2 adsorption.
An in-situ co-assembly strategy is adopted, in which nitrogen and calcium sources are simultaneously compounded during the polymerization stage to form calcium hydroxyl structural base centers on the nitrogen-doped amorphous carbon skeleton. The calcium precursor is anchored in situ by the coordination effect of the aromatic amine nitrogen source, and a porous structure is formed by self-assembly with the template agent, which simplifies the preparation process and improves the dispersion of active sites.
It achieves a three-in-one synergistic removal of H2S through selective oxidation, COS hydrolysis, and SO2 adsorption. It exhibits excellent low-temperature activity, high material stability, simplified preparation process, and reduced cost, making it suitable for the deep purification of multi-component sulfides in industry.
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Figure CN122399861A_ABST