一种煤气化渣分级利用与CO2矿化协同的充填材料及其制备方法
By utilizing coal gasification slag in a graded manner and leveraging the synergistic effect of amine compounds and alkaline activators, the CO2 adsorption capacity and gelling activity of the coal gasification slag are enhanced, solving the problems of coal gasification slag disposal and CO2 sequestration, and achieving efficient resource utilization and sequestration effects.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- CHINA UNIV OF MINING & TECH
- Filing Date
- 2025-12-03
- Publication Date
- 2026-07-17
AI Technical Summary
Existing technologies have failed to effectively combine the fine-grained utilization of coal gasification slag with CO2 mineralization and storage, resulting in unresolved issues related to coal gasification slag disposal and CO2 emissions.
By utilizing coal gasification slag in stages, using amine compounds to modify the fine slag to enhance its CO2 adsorption capacity, combining it with an alkaline activator to activate the gelling activity of the coarse slag, and carrying out slurry reaction under a high concentration of CO2 atmosphere, CO2 mineralization and sequestration are achieved.
It significantly improves the resource utilization rate of coal gasification slag and CO2 sequestration efficiency, reduces backfilling costs, and achieves the dual purpose of large-scale disposal of coal-based solid waste and CO2 sequestration.
Smart Images
Figure CN121470859B_ABST