Desulfurization of hot coal gas over high-surface-area LaMeOx/MCM-41 sorbents

Textural properties of nickel, palladium and titanium oxides supported on MCM-41 materials and their application on oxidative desulfurization of dibenzothiophene

“…Recent studies have indicated that the transition metals oxides are promising materials for these processes [22][23][24][25][26][27] . However, the use of these materials is limited because the specific surface area, volume and pore diameter are low.…”

“…Moreover, the formation of organic sulfides on the surface for adsorption processes would result in blocking of acid sites in the pores, and hence, decrease in capacity to remove sulfur compounds 22 . Therefore, mesoporous materials of high surface area have been synthesized for use as catalyst support in order to address the shortcomings of d-block transition metals oxides [24][25][26] used for this purpose. The use of supported catalysts containing porous support with an appropriate textural property and containing an active phase based on oxides of the d-block transition metal has been developed.…”

“…Therefore, it has proved to be effective desulfurization 25 agents, which will be tested in the sulfur removal process present in petroleum distillates.…”

CeO 2 –MnO x /ZSM-5 sorbents for H 2 S removal at high temperature

“…Then, the gel was firstly aged at ambient temperature for 3 days, dried at 120°C for 12 h, and finally calcined at 600°C for 6 h at a muffle furnace. Eventually, all sorbents were pressed, ground and sieved through 80-100 meshes [25]. N 2 adsorption/desorption isotherms of ZSM-5, fresh and used sorbents were measured at 77 K in a Beishide 3H-2000PS4 apparatus (Beishide Instrument S&T Co., Ltd, China).…”

Fabrication and Fractality of Fe2O3-CeO2/ZSM-5 Composites for High-Temperature Desulfurization

“…The mixtures are kept at 60 • C over a water bath until viscous gels form. Then, the gels firstly age at ambient temperature for 3 days, dry at 120 • C for 12 h, and finally calcine at 600 • C for 6 h in a muffle furnace [26]. The pure CeO 2 and Fe 2 O 3 are prepared via the same procedure without adding ZSM-5.…”