Abstract
Deactivation kinetics of bulk and nano-structured microemulsion prepared iron catalysts were studied in Fischer–Tropsch synthesis (FTS), from fitting of data to a generalized power-law expression (GPLE), r d = k d ( a − a ∞) m . Conventional bulk iron catalyst was prepared by general bulk co-precipitation method and nano-structured iron catalyst was prepared by microemulsion method. A deactivation model involving parallel paths is proposed, i.e. simultaneous conversion of (a) atomic to polymeric to graphitic carbon and (b) active carbon-rich carbides to inactive carbon-poor carbides. Compositions of bulk iron phase and phase transformations of carbonaceous species during catalyst deactivation in FTS reaction were characterized by temperature-programmed surface reaction with hydrogen (TPSR-H 2), XRD and TEM techniques.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: 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.
