Low temperature Fischer–Tropsch synthesis from a Sasol perspective

ε-Iron carbide as a low-temperature Fischer–Tropsch synthesis catalyst

“…As pointed out by Kou and coworkers, the high temperature (503 K and above) currently used is not demanded by the very exothermic FTS reaction itself, but by activation of the iron catalysts 35 . We find that our e-Fe 2 C-dominant RQ Fe catalyst is highly active in LTFTS at 443 K, 60 K lower than the industrial iron-based LTFTS process 41 , which was first developed by Lurgi and Ruhrchemie in 1955 on fixed-bed multitubular ARGE reactors followed by Sasol in 1993 according to their own design of the bubble column reactor over a precipitated ironbased catalyst 42 . The catalytic results listed in Table 3 show that the initial catalytic activity (r 0 ) is 43 mol CO mol Fe À 1 h À 1 (Table 3, entry 2).…”

Promotion Effects in Co‐Based Fischer—Tropsch Catalysis

“…[32][33][34][35][36][37][38][39][40][41][42]6,14 In this respect, it is noteworthy to mention the excellent updates by Dry on the challenges and technological implementations of Co F-T synthesis. [17][18][19][20] The overall selectivity of the F-T process is intimately related to the production of methane, which is not economic, since the back conversion to syngas encounters, severe thermal and yield penalties.…”

Attrition Resistant Fischer-Tropsch Catalysts Based on FCC Supports

“…A SBCR has been considered as the preferred industrial reactor for the F-T synthesis due to its low capital cost, low pressure drop across the reactor, excellent heat transfer efficiency and capability of online catalyst addition and removal [8,9]. Fe-based catalysts are known to undergo attrition during exposure to syngas at elevated temperatures [10] and their resistance to attrition must be improved for use in SBCRs.…”