Catalytic Behavior and In Situ X-Ray Diffraction of Promoted Iron Catalysts for Fischer-Tropsch Synthesis

DOI zum Zitieren der Version auf EPub Bayreuth: https://doi.org/10.15495/EPub_UBT_00007109
URN to cite this document: urn:nbn:de:bvb:703-epub-7109-7

Title data

Wen, Ruoxi ; Thiessen, Johannes ; Jess, Andreas:
Catalytic Behavior and In Situ X-Ray Diffraction of Promoted Iron Catalysts for Fischer-Tropsch Synthesis.
In: Chemie Ingenieur Technik. Vol. 94 (2022) Issue 11 . - pp. 1756-1764.
ISSN 1522-2640
DOI der Verlagsversion: https://doi.org/10.1002/cite.202200056

	Format: PDF Name: Chemie Ingenieur Technik - 2022 - Wen - Catalytic Behavior and In Situ X‐Ray Diffraction of Promoted Iron Catalysts for.pdf Version: Published Version Available under License Creative Commons BY 4.0: Attribution
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Project information

Project financing:	Deutsche Forschungsgemeinschaft

Abstract

The effects of structural promoters (ZnO, SiO2, and Al2O3) on the phase transformation during reduction and Fischer-Tropsch synthesis (FTS) of a FeCuK catalyst were investigated by in situ X-ray diffraction and the FTS catalytic performance was studied in a fixed-bed reactor. The reduction follows the path of Fe2O3/K2Fe22O34 → Fe3O4 → α-Fe. The addition of ZnO, SiO2, and Al2O3 delayed and prolonged the reduction. The iron carbides formed under reaction conditions were χ-Fe5C2 and ε-Fe2C. The presence of ZnO, SiO2, and Al2O3 favored the formation of χ-Fe5C2. ε-Fe2C is a more active phase. Besides, ε-Fe2C seems to favor the formation of CO2 and C5+ and χ-Fe5C2 benefits CH4 and C2–C4 products.

Further data

Item Type:	Article in a journal
Keywords:	Fischer-Tropsch synthesis; In situ X-ray diffraction; Iron phases
DDC Subjects:	500 Science > 540 Chemistry 600 Technology, medicine, applied sciences > 600 Technology 600 Technology, medicine, applied sciences > 620 Engineering 600 Technology, medicine, applied sciences > 660 Chemical engineering
Institutions of the University:	Faculties > Faculty of Engineering Science Faculties > Faculty of Engineering Science > Chair Chemical Engineering Faculties > Faculty of Engineering Science > Chair Chemical Engineering > Chair Chemical Engineering - Univ.-Prof. Dr.-Ing. Andreas Jess Research Institutions > Research Units > Zentrum für Energietechnik - ZET Faculties Research Institutions Research Institutions > Research Units
Language:	English
Originates at UBT:	Yes
URN:	urn:nbn:de:bvb:703-epub-7109-7
Date Deposited:	17 Jul 2023 07:58
Last Modified:	17 Jul 2023 07:58
URI:	https://epub.uni-bayreuth.de/id/eprint/7109

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