Preparation and properties of zeolite-fly ash-slag composite porous materials: CO adsorption performance and mechanical property.

To solve the environmental problems caused by greenhouse gas emissions, porous materials based on alkaline solid wastes (fly ash and slag) were prepared in this study. Besides, the preparation scheme of the porous materials was optimized through an orthogonal test by taking the compressive strength and static CO adsorption capacity as the target parameters. The two target parameters of the porous materials prepared under the optimal ratio are 15.

Optimized structural parameters and heat extraction capacity of a mixing device for constant pressure CO mineralization using alkaline waste.

Alkaline waste such as calcium carbide slag is an ideal material for mineralizing CO and promoting atmospheric carbon reduction. In this study, the structural parameters of a mixing device and a thermal extraction method for the high-efficiency mineralization of CO using alkaline waste were optimized. First, the influence of structural parameters was studied by means of numerical simulation, and it was found that when the length-diameter ratio, blade angle, spacing, and diameter of the mixing device were 3, 15, 6 cm, and 14 cm respectively, 2.