期刊
JOURNAL OF NATURAL GAS CHEMISTRY
卷 19, 期 2, 页码 193-197出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/S1003-9953(09)60040-2
关键词
Ca promoter; Mg promoter; La promoter; Fischer-Tropsch synthesis; iron-based catalyst; water-gas shift reaction
The effects of Mg. La and Ca promoters on primary and secondary CO2 and H2O formation pathways during Fischer-Tropsch synthesis on precipitated Fe/Cu/SiO2 catalysts are investigated The chemisorbed oxygen atoms in the primary pathway formed in the CO dissociation steps reacted with co-adsorbed hydrogen or carbon monoxide to produce H2O and CO2, respectively The secondary pathway was the water-gas shift reaction The results indicated that the CO2 production led to an increase in both primary and secondary pathways. and H2O production decreased when surface basicity of the catalyst increased in the order Ca > Mg > La
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