Recent developments in catalyst pretreatment technologies for cobalt based Fisher–Tropsch synthesis.

The authors reported that the Co(fcc) phase in Co/SiO SB 2 sb easily transformed to carbides under CO treatment, and rapidly reduced to Co(hcp) in H SB 2 sb , due to weaker cobalt-silica interactions and surface deformity. The latter produced both Co(fcc) and Co(hcp) phases, whereas the major phases in the CO activated catalyst were found to be CoO, Co SB 3 sb C, Co SB 2 sb C and minimal amounts of Co°. Keywords: activation; cobalt-based catalyst; Fischer-Tropsch synthesis; pretreatment; reduction EN activation cobalt-based catalyst Fischer-Tropsch synthesis pretreatment reduction 503 538 36 07/05/22 20220701 NES 220701 1 Introduction Growing concern about the limited supply of fossil fuel and serious environmental problems has sparked global interest in producing green fuels ([73]; [115]). Recent developments in catalyst pretreatment technologies for cobalt based Fisher-Tropsch synthesis However, Co(fcc) remained after the full reduction (H-C-H) cycle of Co/Al SB 2 sb O SB 3 sb , which suggests that the CO treatment did not cause the Co(fcc) to fully transform to cobalt carbide. [Extracted from the article]