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Investigation of the Influence of Process Conditions on the Catalytic Performance of Co–Ce/SiO 2 Catalyst for CO Hydrogenation Reaction using RSM Method
Author(s) -
Arsalanfar Maryam,
Nouri Azita,
Abdouss Majid
Publication year - 2019
Publication title -
chemistryselect
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.437
H-Index - 34
ISSN - 2365-6549
DOI - 10.1002/slct.201902324
Subject(s) - catalysis , selectivity , response surface methodology , bar (unit) , methane , materials science , reaction conditions , chemical engineering , chemistry , organic chemistry , chromatography , physics , meteorology , engineering
The Co−Ce/SiO 2 catalyst was prepared using fusion method and evaluated in the fixed bed micro‐reactor for light olefins production. The influence of various operational conditions of reaction temperature (300‐450 °C), H 2 /CO feed ratio (1‐4) and total reaction pressure (1‐10 bar) was investigated on the (C 2 ‐C 4 ) light olefins production using statistical method. The modeling and optimization processes were performed using response surface methodology (RSM) method. A polynomial equation for each response was successfully fitted to the experimental data. The optimization results show that the best operational conditions for light olefins production are as follows: T=365 °C, P=5 bar and H 2 /CO=2. Under these optimized conditions the selectivity of (C 2 ‐C 4 ) light olefins and CO conversion% are maximum and the methane selectivity is minimum concurrently. Catalyst characterization was performed using, XRD, BET, TGA, DSC, TPR and SEM.