Effect of temperature on the wetting performance of coal powder by different surfactant solutions: experimental and molecular dynamics simulation study.

ABSTRACT: Current research on coal dust wettability primarily focuses on surfactant types, concentrations, and coal properties, while the role of temperature as a key parameter in practical applications has not been fully explored. This study combines experimental measurements and molecular dynamics (MD) simulations to systematically investigate the influence of temperature (291.15-308.15 K) on the wetting behavior of coal dust by three surfactants: zwitterionic BS‑12, nonionic OP‑10, and anionic SDS. Macroscopic experiments indicate that increasing temperature contributes to improved wetting performance: contact angles are reduced by 45.3% (BS‑12), 50.1% (OP‑10), and 46.8% (SDS), while coal dust settling time is shortened by 33.1%, 83.62%, and 63.44%, respectively. Molecular dynamics simulations fu

SUBMITTER: Fu W 

PROVIDER: S-EPMC12824158 | biostudies-literature | 2025 Dec

REPOSITORIES: biostudies-literature