Dr. Markus Seifert
© AK Weigand
Scientific Assistant
NameDr. Markus Seifert
Supervision of industrial chemistry and catalyst testing devices
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Research topic
Deactivation behaviour of modified ZSM-5 zeolite catalysts to conversion of ethanol: mechanism, control and monitoring The aim of this project includes a systematic approach to improve long-term stability of an industrial zeolite of CLARIANT(R) by post-synthesis as well as a stepwise study of mechanism and structure-activity relationships during product formation and deactivation in Bio-ETH process.
Publications
Paper
2022 12 Surface ion-imprinted brewer’s spent grain with low template loading for selective uranyl ions adsorption from simulated wastewater; Y. Su, M. Wenzel, M. Seifert, J. J. Weigand; J. Hazard. Mater., 2022, DOI: 10.1016/j.jhazmat.2022.129682.
11 One-pot synthesis of brewer’s spent grain-supported superabsorbent polymer for highly efficient uranium adsorption from wastewater; Y. Su, M. Wenzel, S. Paasch, M. Seifert, T. Doert, E. Brunner, J. J. Weigand; Environ. Res., 2022, 113333.
10 Binder selection to modify hydrocarbon cracking properties of zeolite containing composites; A. S. Carrasco, V. Timoshev, M. Hauck, M. Hassan Nejad, T. Dang, X. H. Vu, M. Seifert, O. Busse, J. J. Weigand; ACS Omega, 2022, 19, 16430.
9 Origin of Morphology Change and Effect of Crystallization Time and Si/Al Ratio during Synthesis of Zeolite ZSM-5; C. Jonscher, M. Seifert, N. Kretzschmar, M. S. Marschall, M. Le Anh, T. Doert, O. Busse, J. J. Weigand; ChemCatChem., 2022, 14, e202101248.
2021 8 Recycling of Brewer’s Spent Grain as a Biosorbent by Nitro-Oxidation for Uranyl Ion Removal from Wastewater; Y. Su, M. Wenzel, S. Paasch, M. Seifert, W. Böhm, T. Doert, J. J. Weigand; ACS Omega, 2021, 6, 19364. (Inside Cover) 7 Conversion of Oxygenates on H-ZSM-5 Zeolites – Effects of Feed Structure and Si/Al Ratio on the Product Quality; T. Gille, M. Seifert, M. S. Marschall, S. Bredow, T. Schneider, O. Busse, W. Reschetilowski, J. J. Weigand; Catalysts, 2021, 11, 432. 6 Peptization control of aluminum chloride containing composites for catalysts with active matrix; A. Carrasco, M. Seifert, M. Hauck, A. Brünner, T. Doert, O. Busse, J. J. Weigand; Chem. Eng. Technol., 2021, 44. 1051. 5 Deactivation kinetics of ZSM-5 by coke in ethanol to hydrocarbons process; M. Seifert, C. Jonscher, L. A. Haufe, J. J. Weigand; Chem.-Ing-Tech., 2021, 93, 747.
4 Peptization control of composite materials containing water glass for spray drying catalysts; A. Carrasco, M. Seifert, M. Hannß, T. Henle, M. Lê-Anh, O. Busse, J. J. Weigand; Chem. Eng. Technol., 2021, 44, 732.
2020 3 Ethanol to aromatics on modified H-ZSM-5 Part II: An unexpected low coking; M. Seifert, M. S. Marschall, T. Gille, C. Jonscher, P. Royla, O. Busse, W. Reschetilowski, J. J. Weigand; Chem. Asian J., 2020, 15, 3878. 2 Ethanol to aromatics on modified H-ZSM-5 Part I: Interdependent dealumination actions; M. Seifert; M. S. Marschall; T. Gille; C. Jonscher; O. Busse; S. Paasch; E. Brunner; W. Reschetilowski, J. J. Weigand; ChemCatChem., 2020, 12, 6301.
2016 1 Durability improvements of H-ZSM-5 zeolite for ethanol conversion after treatment with chelating agents; Daniel Däumer, Markus Seifert, Wladimir Reschetilowski; Microporous and Mesoporous Materials, 2016, 219, 66.
Lectures
2019 6 Insights into the Deactivation and Product Formation Behavior of ZSM-5 Zeolite Catalysts in the Conversion of Ethanol to Small Aromatics ; M. Seifert, M. S. Marschall, T. Gille, O. Busse, W. Reschetilowski, J. J. Weigand; DGMK-Conference “Thermochemische Konversion – Schlüsselbaustein für zukünftige Energie- und Rohstoffsysteme, Dresden, Germany, 2019. 5 Investigation of the Influence of Si/Al ratio on the Deactivation of ZSM-5 Zeolites in the Conversion of Ethanol to Hydrocarbons; M. Seifert, C. Jonscher, M. S. Marschall, T. Gille, O. Busse, J. J. Weigand; DGMK-Conference “Circular Economy – A Fresh View on Petrochemistry”; Dresden, 2019.
2018 4 Post-synthetic modification of H-ZSM-5 to improve durability in formation of aromatics in Ethanol-to-Hydrocarbons process; M. Seifert, T. Gille, P. Royla, O. Busse, W. Reschetilowski, J. J. Weigand; 10th International symposium on Nano and Supramolecular Chemistry, Dresden, Germany, 2018.
2017 3 Durability improvement of commercial H-ZSM-5 zeolite during ethanol conversion after combined post-synthesis; M. Seifert, T. Gille, O. Busse, D. Däumer, W. Reschetilowski, J. J. Weigand; 7th International Symposium on Energy; Manchester, 2017.
2016 2 Investigation of the deactivation pathway of H-ZSM-5 catalyst in ETH process after tailored multi-step phosphorus modification; M. Seifert, D. Däumer, C. Bischof, J. J. Weigand, W. Reschetilowski; 28. Deutschen Zeolith-Tagung, Gießen, 2016.
2014 1 Durability improvement of ETH-catalyst H-ZSM-5 by acid treatment; M. Seifert, D. Däumer, W. Reschetilowski; 47. Jahrestreffen Deutscher Katalytiker, Weimar, 2014.
Poster
2019 12 Insights into the deactivation and product behavior of ZSM-5 zeolite catalysts in the conversion of ethanol to small aromatics; DGMK-Conference "Thermochemische Konversion - Schlüsselbaustein für zukünftige Energie- und Rohstoffsysteme", Dresden, 2019.
2018 11 Catalytic conversion of oxygenates using Al-MCM-41/ZSM-5 composite materials and pure H-ZSM-5 with different Si/Al-ratio – a systematic investigation; T. Gille, M. Seifert, O. Busse, J. J. Weigand; 10th International Symposium on Nano and Supramolecular Chemistry, Dresden, 2018. 10 Production of ZSM-5 - based industrial catalysts by educts and residues from Vietnam for preferred propene production and stabilization for biogenic co-feeding in FCC-process; O. Busse, M. Seifert, J. J. Weigand; 51. Jahrestreffen Deutscher Katalytiker, Weimar, 2018.
2017 9 Evidence of pore-mouth catalysis in ethanol to hydrocarbons process via postsynthetic experiments; M. Seifert, M. Seidel, D. Däumer, W. Reschetilowski, J. J. Weigand; 50. Jahrestreffen Deutscher Katalytiker, Weimar, Germany, 2017. 8 Concept of site isolation in conversion of ethanol to hydrocarbons - catalyst performance and mechanistic insights; M. Seifert, T. Gille, D. Däumer, W. Reschetilowski, J. J. Weigand; 50. Jahrestreffen Deutscher Katalytiker, Weimar, Germany, 2017.
2016 7 Deactivation Properties of Multistep Phosphorus Modified ZSM-5 in Ethanol to Hydrocarbons Process - Structure-property Relations and their Limits; M. Seifert, D. Daeumer, C. Bischof, T. Junietz, J. J. Weigand, W. Reschetilowski; 24th DGMK Conference, Berlin, Germany, 2016.
6 Tuning of deactivation behaviour of zeolite ZSM-5 in the ETH process by post-synthetic interior design; M. Seifert, D. Däumer, T. Junietz, J. J. Weigand, W. Reschetilowski; 49. Jahrestreffen Deutscher Katalytiker, Weimar, 2016.
2015 5 Triplication of catalyst durability in the ETH process by surface property shaping with steam and acid treatment; M. Seifert, D. Däumer, W. Reschetilowski; 48. Jahrestreffen Deutscher Katalytiker, Weimar, 2015.
4 Application of simple models to understand properties and catalytic performance of ETH catalyst H-ZSM-5; D. Däumer, M. Seifert, W. Reschetilowski; 27. Deutsche Zeolith-Tagung, Oldenburg, 2015.
2014 3 Durability improvement of ETH-catalyst H-ZSM-5 by combining experimental and computational methods; D. Däumer, M. Seifert, W. Reschetilowski; 6th International FEZA Conference, Leipzig, 2014.
2013 2 Durability Improvement of H-ZSM-5 Zeolite during the Conversion of Ethanol into Hydrocarbons by Removal of Extra-lattice Species; D. Däumer, M. Seifert, W. Reschetilowski; 46. Jahrestreffen Deutscher Katalytiker, Weimar, 2013.
2012 1 Untersuchungen zur Standzeitverbesserung von ZSM-5-Katalysatoren im ETH-Prozess mittels Imprägnierung mit Phosphorsäure und Wasserdampfbehandlung; D. Däumer, M. Seifert, W. Reschetilowski; 45. Jahrestreffen Deutscher Katalytiker, Weimar, 2012.