18O2 label mechanism of sulfur generation and characterization in properties over mesoporous Sm-based sorbents for hot coal gas desulfurization

- Formation of sulfur originated from catalytic action of samarium oxysulfide.
- Mechanism of sulfur desorption was first confirmed via time of flight MS.
- Utilization of mesoporous Sm-based sorbents was favorable for diffusion of H2S.
- Stability of Sm-based sorbent correlated with reasonable regeneration procedure.