eprintid: 3204 rev_number: 2 eprint_status: archive userid: 1 dir: disk0/00/00/32/04 datestamp: 2023-11-09 15:51:28 lastmod: 2023-11-09 15:51:28 status_changed: 2023-11-09 15:45:13 type: article metadata_visibility: show creators_name: Ali, S. creators_name: Zabidi, N.A.M. creators_name: Subbarao, D. title: Effect of niobium promoter on iron-based catalyst for Fischer-Tropsch reaction ispublished: pub keywords: Catalyst selectivity; Gas adsorption; Iron oxides; Methane; Niobium, Average size; CNT; Effect of niobium; Fischer-Tropsch reaction; Fixed bed micro-reactor; Iron-based catalyst; Nitrogen adsorption; Wet impregnation method; XRD; ]+ catalyst, Fischer-Tropsch synthesis note: cited By 8 abstract: Niobium-promoted Fe/CNTs catalysts were prepared using a wet impregnation method. Samples were characterized by nitrogen adsorption, H2-TPR, TPD, XRD and TEM. The Fischer-Tropsch Synthesis (FTS) was carried out in a fixed-bed microreactor at 220°C, 1 atm and H2/CO=2 for 5 h. Addition of niobium into Fe/CNTs increased the dispersion, decreased the average size of iron oxide nanoparticles and the catalyst reducibility. Niobium-promoted Fe catalyst resulted in appreciable increase in the selectivity of C5+ hydrocarbons and suppressed methane formation. These effects were more pronounced for the 0.04Nb/Fe/CNTs catalyst, compared to those observed from other niobium compositions. The 0.04Nb/Fe/CNTs catalyst enhanced the C5+ hydrocarbons selectivity by a factor of 67.5 and reduced the methane selectivity by a factor of 59.2. date: 2012 publisher: Science Press official_url: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84857490164&partnerID=40&md5=a6c85a034b79218ddb06c6d5ff3594da full_text_status: none publication: Ranliao Huaxue Xuebao/Journal of Fuel Chemistry and Technology volume: 40 number: 1 pagerange: 48-53 refereed: TRUE issn: 2097213X citation: Ali, S. and Zabidi, N.A.M. and Subbarao, D. (2012) Effect of niobium promoter on iron-based catalyst for Fischer-Tropsch reaction. Ranliao Huaxue Xuebao/Journal of Fuel Chemistry and Technology, 40 (1). pp. 48-53. ISSN 2097213X