Dr. Markus Seifert
© Ak Weigand
Scientific Assistant
NameDr. Markus Seifert
Supervision of industrial chemistry and catalyst testing devices
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Research topic
Macroscopic kinetic description and operation of continuous-mode biomass conversion processes
- Kinetic description of catalyzed gas/solid surface reactions in macroscopic operation
- Assessment of catalyst testing reactor devices
- Improvement of MOBIL alcohol conversion processes from zeolite/silicate chemistry and process control for synergistic co-processing
- Solid-state catalyst analytics, especially SEM and EDX analysis as well as gas-phase analytics by GC techniques
Projects
DFG, SE 2450/2-1: “Event-based description of chemical kinetics by probability of states and entropy” Publication 15, Publication 16, Publication 18
Publications
Paper
2025 25. Design recommendations of fixed bed reactor test rigs for catalyzed alcohol conversion; L. A. Haufe, F. Bismark, J. Tippner, M. Seifert, J. J. Weigand; Results in Engineering, 2025, 28, 107302. https://doi.org/10.1016/j.rineng.2025.107302
24. Herstellung von Silizium- und Aluminiumverbindungen aus verbrauchten FCC-Katalysatoren; J. J. Weigand, M. S. Marschall, O. Busse, M. Seifert; DE 102023129228.5; Offenlegungstag: 24.04.2025
23. Herstellung von ZSM-5-Zeolithen aus verbrauchten FCC-Katalysatoren; J. J. Weigand, V. Timoshev, O. Busse, M. Seifert; DE 1023023129226.9; Offenlegungstag: 24.04.2025
22. Zeolite Synthesis Using Recycled Silicon and Aluminum Components from Spent FCC Catalysts; M. Marschall, M. Seifert, M. Hauck, O. Busse, J. J. Weigand; Waste Management, 2025, 202, 114817. DOI: 10.1016/j.wasman.2025.114817.
2024 21. Selective conversion of spent cracking catalyst to faujasite-structured zeolites; M. Marschall, M. Seifert, M. Hauck, O. Busse, J. J. Weigand; Materials Today Communications, 2024, 41, 110234. DOI: 10.1016/j.mtcomm.2024.110234
20. Enhancing Hydrothermal Stability of ZSM-5 Cracking Additives with Aluminum Phosphates; V. Timoshev, L. A. Haufe, M. Seifert, O. Busse, Y. Wu, T. Wiegand, J. J. Weigand; Industrial & Engineering Chemistry Research, 2024, DOI: 10.1021/acs.iecr.4c01852. 19. Recycling of Spent FCC Catalysts: Conversion of Leached Residues to Zeolite ZSM-5; V. Timoshev, L. A. Haufe, O. Busse, H. Hamedi, M. Seifert, J. J. Weigand; ChemSusChem, 2024, DOI: 10.1002/cssc.202301642.
2023 18. Highly Selective Alkaline Oxide Promoted Ni/silica for the Production of Cyclohexanol/-one from Lignin-derived Guaiacol; N. Kretzschmar, O. Busse, M. Roslova, M. Hantusch, M. Seifert; ChemCatChem, 2023, 15, e202300764.
17. A copper decorated porphyrin-based porous organic polymer: Evaluation in the oxidation of lignin model compounds; E. D. Maggott, D. A Haynes, M. Hantusch, M. Seifert, J. J. Weigand, S. F. Mapolie; React. Funct. Polym., 2023, 191, 105675.
16. Controlling the reaction network of Ni/silica derived conversion of bio-oil surrogate guaiacol; N. Kretzschmar, O. Busse, M.Seifert; Carbon Resources Conversion, 2023, 7, 100187.
15. Impact of Geometric and Electronic Factors on Selective Hydro-Deoxygenation of Guaiacol by Surface-Rich Metal/Silica Catalysts; N. Kretzschmar, O. Busse, M.Seifert; Catalysts, 2023, 13, 425
2022 14. Crucial role of silica-alumina binder mixtures for hydrocarbon cracking with ZSM-5 additives; L. A. Haufe, V. Timoshev, M. Seifert, O. Busse, J. J. Weigand; ACS Omega, 2022, 7, 44892.
13. Prediction of Retention Indices and Response Factors of Oxygenates for GC-FID by Multilinear Regression; N. Kretzschmar, M. Seifert, O. Busse, J. J. Weigand; Data, 2022, 7, 133.
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, 440, 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.
Book Chapters
M. Seifert, J.J. Weigand: Catalytic and active framework materials – Homogeneous catalysis. In: Applied Inorganic Chemistry, Edited by Rainer Pöttgen, Thomas Jüstel, Cristian A. Strassert, 2022, De Gruyter
Lectures
2025 11. Der Sachsen!Textil e.V. stellt sich neu auf - Abgeschlossenes, Laufendes und Zukünftiges 2024-2026; M. Seifert, A. Richter, S. Kaiser, T. Brückner; SymCraft-Konferenz "Nutzung biobasierter Reststoffe und naturfaserbasierte Kreislaufwirtschaft", Kluge GmbH Königswartha, Germany, 2025.
2024 10. Design and reliability of two fixed-bed catalyst test rigs for methanol-to-olefins reaction; M. Seifert, L.A. Haufe, J.J. Weigand; GLS-16 "16th International Conference on Gas-Liquid and Gas-Liquid-Solid Reactor Engineering", Dresden, Germany, 2024.
2023 9. About the Art to Prepare Mixed SAPO-CHA/MFI Catalyst Materials for Methanol-to-olefins Reaction;M. Seifert, L.A. Haufe, J.J. Weigand;DGMK-Conference "C1 Building Blocks for Future Chemistry", Dresden, Germany, 2023.
8. Systematic catalyst selection methods for hydrodeoxygenation of lignin hydrolysate guaiacol; M. Seifert, Chemiedozententagung, Dresden, Germany, 2023.
2022 7. Biofuels and Biochemicals; M. Seifert, iSCOPe, Dresden, Germany, 2022.
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
2023 14. Crucial role of silica-alumina binder mixtures for hydrocarbon cracking with ZSM-5 containing catalysts; L.A. Haufe, V. Timoshev, M. Seifert, O. Busse, J. J. Weigand; 56. Jahrestreffen Deutscher Katalytiker; Weimar, 2023.
13. Combined van-Krevelen and Volcano plot analysis to understand hydrodeoxygenation of guaiacol on metal/silica catalysts; N. Kretzschmar, O. Busse, M. Seifert, J. J. Weigand; 56. Jahrestreffen Deutscher Katalytiker; Weimar, 2023.
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.