Abstract
Effect of manganese promoter on the microstructures of co-precipitated Fe–Cu catalysts was investigated by N2 physisorption, X-ray diffraction (XRD), and temperature-programmed reduction/desorption of hydrogen (H2-TPR/TPD). Higher alcohols synthesis (HAS) was performed in a fixed bed reactor. The characterization results indicated that incorporation of manganese into the Fe–Cu based catalysts facilitated the formation of Fe–Mn–O solid solution and promoted the dispersion of both the iron and copper species. In the HAS reaction, the catalytic activity of CO hydrogenation, selectivity of C2+OH and hydrocarbons increased gradually with increasing Mn concentration, which may be attributed to the well dispersion of both the iron and copper surface active sites in higher manganese content. The optimum conditions for producing higher alcohols from syngas were determined as 270°C and 6.0MPa.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.