The effect of process conditions on product selectivity of Fischer-Tropsch synthesis (FTS) over industrial iron-based catalyst (100 Fe/5 Cu/4.2 K/25 SiO2) was studied in a 1-L stirred tank slurry reactor. Experiments were performed over a range of different reaction conditions, including three temperatures (T = 493, 513 and 533K), four pressures (P = 0.8, 1.5, 2.25 and 2.5 MPa), two synthesis gas feed molar ratios (H-2/CO = 0.67 and 2) and gas space velocity from 0.52 to 23.5 Ndm(3)/g-Fe/h. The effect of process conditions on reaction pathways of FTS and secondary 1-olefin reactions was analyzed by comparing product selectivities, chain growth probabilities and ratios of main products (n-paraffin, 1- and 2-olefin). Reduction of methane production and increase of C5+ products was achieved by decreasing temperature, inlet H-2/CO ratio and/or increasing pressure. Overall selectivity toward methane and C5+ did not show significant changes with variations in residence time. All of the produ...ct selectivity variations were shown to be related to changes in chain length dependent growth probabilities.
TY - JOUR
AU - Todić, Branislav
AU - Nowicki, Lech
AU - Nikačević, Nikola
AU - Bukur, Dragomir B.
PY - 2016
UR - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3411
AB - The effect of process conditions on product selectivity of Fischer-Tropsch synthesis (FTS) over industrial iron-based catalyst (100 Fe/5 Cu/4.2 K/25 SiO2) was studied in a 1-L stirred tank slurry reactor. Experiments were performed over a range of different reaction conditions, including three temperatures (T = 493, 513 and 533K), four pressures (P = 0.8, 1.5, 2.25 and 2.5 MPa), two synthesis gas feed molar ratios (H-2/CO = 0.67 and 2) and gas space velocity from 0.52 to 23.5 Ndm(3)/g-Fe/h. The effect of process conditions on reaction pathways of FTS and secondary 1-olefin reactions was analyzed by comparing product selectivities, chain growth probabilities and ratios of main products (n-paraffin, 1- and 2-olefin). Reduction of methane production and increase of C5+ products was achieved by decreasing temperature, inlet H-2/CO ratio and/or increasing pressure. Overall selectivity toward methane and C5+ did not show significant changes with variations in residence time. All of the product selectivity variations were shown to be related to changes in chain length dependent growth probabilities.
PB - Elsevier Science Bv, Amsterdam
T2 - Catalysis Today
T1 - Fischer-Tropsch synthesis product selectivity over an industrial iron-based catalyst: Effect of process conditions
EP - 39
SP - 28
VL - 261
DO - 10.1016/j.cattod.2015.09.005
ER -
@article{
author = "Todić, Branislav and Nowicki, Lech and Nikačević, Nikola and Bukur, Dragomir B.",
year = "2016",
abstract = "The effect of process conditions on product selectivity of Fischer-Tropsch synthesis (FTS) over industrial iron-based catalyst (100 Fe/5 Cu/4.2 K/25 SiO2) was studied in a 1-L stirred tank slurry reactor. Experiments were performed over a range of different reaction conditions, including three temperatures (T = 493, 513 and 533K), four pressures (P = 0.8, 1.5, 2.25 and 2.5 MPa), two synthesis gas feed molar ratios (H-2/CO = 0.67 and 2) and gas space velocity from 0.52 to 23.5 Ndm(3)/g-Fe/h. The effect of process conditions on reaction pathways of FTS and secondary 1-olefin reactions was analyzed by comparing product selectivities, chain growth probabilities and ratios of main products (n-paraffin, 1- and 2-olefin). Reduction of methane production and increase of C5+ products was achieved by decreasing temperature, inlet H-2/CO ratio and/or increasing pressure. Overall selectivity toward methane and C5+ did not show significant changes with variations in residence time. All of the product selectivity variations were shown to be related to changes in chain length dependent growth probabilities.",
publisher = "Elsevier Science Bv, Amsterdam",
journal = "Catalysis Today",
title = "Fischer-Tropsch synthesis product selectivity over an industrial iron-based catalyst: Effect of process conditions",
pages = "39-28",
volume = "261",
doi = "10.1016/j.cattod.2015.09.005"
}
Todić, B., Nowicki, L., Nikačević, N.,& Bukur, D. B.. (2016). Fischer-Tropsch synthesis product selectivity over an industrial iron-based catalyst: Effect of process conditions. in Catalysis Today
Elsevier Science Bv, Amsterdam., 261, 28-39.
https://doi.org/10.1016/j.cattod.2015.09.005
Todić B, Nowicki L, Nikačević N, Bukur DB. Fischer-Tropsch synthesis product selectivity over an industrial iron-based catalyst: Effect of process conditions. in Catalysis Today. 2016;261:28-39.
doi:10.1016/j.cattod.2015.09.005 .
Todić, Branislav, Nowicki, Lech, Nikačević, Nikola, Bukur, Dragomir B., "Fischer-Tropsch synthesis product selectivity over an industrial iron-based catalyst: Effect of process conditions" in Catalysis Today, 261 (2016):28-39,
https://doi.org/10.1016/j.cattod.2015.09.005 . .
