Overview of Fine Coal Filtration. Part I: Evaluation of Filtration Performance and Filter Cake Structure

This review underscores the fundamental aspects of filtration, focusing on the key factors influencing filtration performance and filter cake structure. It highlights the critical parameters for evaluating filtration performance, particularly the flow rate and moisture content of the filter cake, which are significantly influenced by the cake's pore structure. Additionally, advanced cake evaluation methods such as NMR spectroscopy, SEM microscopy, and MicroCT (mu CT) imaging were explored, along with their limitations. Among these, the mu CT imaging technique emerges as a powerful method, offering highly accurate insights into cake structure compared to other methods. The review also discusses emerging techniques and provides insights into future perspectives in the field.