Fischer-Tropsch synthesis product selectivity over an industrial iron-based catalyst: Effect of process conditions
Апстракт
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.
Кључне речи:
Fischer-Tropsch synthesis / Slurry reactor / Product selectivity / Iron catalyst / Coal-to-liquidИзвор:
Catalysis Today, 2016, 261, 28-39Издавач:
- Elsevier Science Bv, Amsterdam
Финансирање / пројекти:
- US DOEUnited States Department of Energy (DOE) [DE-FG26-02NT41540]
- Qatar Foundation
- Развој ефикаснијих хемијско-инжењерских процеса заснован на истраживањима феномена преноса и принципима интензификације процеса (RS-MESTD-Basic Research (BR or ON)-172022)
DOI: 10.1016/j.cattod.2015.09.005
ISSN: 0920-5861
WoS: 000366159900004
Scopus: 2-s2.0-84948145857
Институција/група
Tehnološko-metalurški fakultetTY - 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 . .