The chemistry of organosulphur compound types occurring in heavy oils: 4. the high-temperature reaction of thiophene and tetrahydrothiophene with aqueous solutions of aluminium and first-row transition-metal cations

摘要: In the reactions of thiophene and tetrahydrothiophene with aqueous solutions first-row transition-metal aluminium cations at 240 °C 3.4 MPa all metal species accelerated decomposition thiophenes in relation to equivalent pure water. Al3+, Sc3+, VO2+, Cr3+, Ni2+ Cu2+ were most reactive towards Cr3+ tetrahydrothiophene. Principal products H2S complex mixtures organic products. The presence CO2 oxygen-containing revealed that water was involved direct chemical reaction substrates. It is likely these model parallel more processes occur during steam-stimulated recovery oil-sand bitumen other high-sulphur oils.