Hong, Gi Hoon Noh, Young Su Park, Ji In Shin, Seol A. Moon, Dong Ju 2024-01-19T23:02:13Z 2024-01-19T23:02:13Z 2021-09-03 2018-04-01 0920-5861 https://pubs.kist.re.kr/handle/201004/121502 The effect of catalytic reactor bed dilution on product distribution in Fischer-Tropsch synthesis (FTS) over Ru/Co/Al2O3 catalysts was investigated. Ru/Co/Al2O3 catalysts were prepared by a two-step impregnation method and characterized by N-2 physisorption, CO chemisorption, XRD, and TPR techniques. The catalyst bed was prepared by the layered dilution method with four different cases. The dilution of the catalyst bed affected the temperature profile and bed residence time of the catalytic reactor bed. Furthermore, CO conversion and CH4 selectivity were affected by temperature distribution, which varied with the degree of dilution in the fixed-bed reactor. The olefin to paraffin ratio of C-2-C-4 products and the chain growth probability (a) were influenced by the residence time of the catalytic reactor bed, which varied with the layered dilution method. A transition zone was thought to exist between the catalyst layers, which was referred to as an interval. With a long interval, the heat generated by the exothermic reaction over the catalyst layer would not be appropriately transferred from one layer to another, and the readsorption of a-olefin from pellet to pellet would also become more difficult. The dilution of the catalyst layer in the fixed-bed reactor was determined as an important parameter for optimizing product selectivity in the FTS reaction. Based on the results, the pellet to pellet readsorption model of a-olefin was proposed. English ELSEVIER SCIENCE BV CO HYDROGENATION FIXED-BED COBALT DISPERSION KINETICS Effect of catalytic reactor bed dilution on product distribution for Fischer-Tropsch synthesis over Ru/Co/Al2O3 catalyst Article 10.1016/j.cattod.2017.09.055 1 CATALYSIS TODAY, v.303, pp.136 - 142 CATALYSIS TODAY 303 136 142 scie scopus 000425175700021 2-s2.0-85031330091 Chemistry, Applied Chemistry, Physical Engineering, Chemical Chemistry Engineering Article; Proceedings Paper CO HYDROGENATION FIXED-BED COBALT DISPERSION KINETICS Gas to liquid (GTL) Fischer-Tropsch synthesis Fixed-bed reactor Reactor bed dilution alpha-olefin readsorption Product distribution