Linear polymers of polyvinyl imidazole (PVIM) and polyvinyl pyridine (PVP) were synthesized via radical polymerization, and then ionized by varying crosslinking reagents, p-xylene dichloride, phosphotungstic acid, and vanadic acid. The structure and morphology of the as-prepared poly ionic liquids (PILs) were characterized by different methods, including XRD, FTIR, elemental analysis, BET analysis, SEM, TG-DSC etc. Their application as sorbent and catalysts for the adsorptive and oxidative desulfurization of fuel oils were studied. The PILs are mesoporous with higher specific area (100~600 m2.g-1), and higher adsorptive desulfurization ability than their ionic precursors due to their rich porosity and high specific area. The heteropoly acid based PILs (V-PIL, HPW-PIL) show much better catalytic performance than their heteropoly acids due to the synergic effect of adsorption mesoporous PIL and the in situ catalytic oxidation by the well dispersed active sites. Two oxidative desulfurization processes were studied by using H2O2 and CHP as oxidants respectively, both achieves promising desulfurization performance.

Highly crosslinked PILs as sorbent and catalyst in deep desulfurization of fuel oil

256th National Meeting (2018)

The official archive and repository for all ACS Meetings & Expositions abstracts and select posters or presentations.