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. 2021 Apr 5;11(8):4784–4798. doi: 10.1021/acscatal.0c05027

Table 1. Cobalt-Time-Yield (CTY), Product Selectivities, and Hydrocarbon Chain-Growth Probability (α) for Co-Based FT-Catalysts Supported on a Multimodal Meso-Macroporous γ-Al2O3 Support, and Optionally Modified with Various Alkali and Lanthanide Oxide Promotersa.

catalyst CTYb [mmol CO gCo−1  h−1] S(CO2) [C%] S(CH4) [C%] S(C5+) [C%] S(C5–10 Olef.) [C%] αc [-] C2–4 Olef.d [%] C5–10 Olef.e [%]
CoRu/AOmM 88.9 0.6 7.9 79.2 13.3 0.80 56.5 54.7
1.0Na-CoRu/AOmM 32.9 1.0 8.0 76.0 14.4 0.77 54.3 56.2
3.0Na-CoRu/AOmM 8.5 8.1 10.8 53.2 10.1 0.66 36.1 53.1
1.0K-CoRu/AOmM 27.5 1.3 8.6 74.4 13.9 0.78 54.1 57.2
1.0Cs-CoRu/AOmM 10.9 2.9 11.4 65.0 12.1 0.71 56.7 54.6
1.0La-CoRu/AOmM 43.1 0.8 8.2 73.2 16.2 0.75 54.7 58.1
1.0Pr-CoRu/AOmM 36.7 0.9 8.4 70.2 19.9 0.75 57.5 61.5
3.0Pr-CoRu/AOmM 12.4 1.3 12.4 54.6 19.5 0.66 53.0 61.7
1.0Sm-CoRu/AOmM 47.3 1.1 9.2 73.6 14.6 0.76 54.8 53.2
a

Reaction conditions: T = 473 K, P = 20 bar, H2/CO = 2, WHSV = 5.1–11.0 h–1, CO conversion = 20 ± 3%.

b

Cobalt-time-yield.

c

Chain-growth probability.

d

Molar olefin abundance within the C2–4 hydrocarbon product fraction.

e

Molar olefin abundance within the C5–10 hydrocarbon product fraction.