Slow aging mechanisms in non-oxidative reaction conditions e.g. dehydrogenation on Pt-ZSM5 catalysts

• Autorzy: Matthies Jörn H. , Dittmann Daniel , Dyballa Michael , Nieken Ulrich

Identyfikatory

DOI

10.24425/cpe.2023.146734

• Konferencja: 24th Polish Conference of Chemical and Process Engineering, 13-16 June 2023, Szczecin, Poland. Guest editor: Prof. Rafał Rakoczy and 8th European Process Intensification Conference, 31.05–2.06.2023, Warsaw, Poland
• Języki publikacji: EN

Abstrakty

EN

ontrol of reaction conditions, short residence times and completely inert surfaces are of major importance when studying aging mechanisms by soot formation. The use of ceramics as reactor material in combination with a special reactor design allows control over industrially relevant reaction conditions (Tmax = 1100 ◦C, tResidence = 50 ms) and sample shapes while avoiding interfering side reactions. We have successfully tested new ceramic kinetic reactors in two model systems of propane dehydrogenation and reactor coil material. The presented reactor setup allows long-term measurements with industrially relevant material samples under controlled conditions. In both model reactions it was possible to perform studies on regeneration methods by oxidation and to study the effects on the material using different in-situ and ex-situ techniques including 31P MAS NMR measurements.

Słowa kluczowe

EN

ceramic reactor; materials; coke; aging mechanisms

PL

reaktor ceramiczny; materiały; koks; mechanizm starzenia

• Wydawca: Komitet Inżynierii Chemicznej i Procesowej Polskiej Akademii Nauk
• Czasopismo: Chemical and Process Engineering : New Frontiers
• Rocznik: 2023
• Tom: Vol. 44, nr 3
• Strony: art. no. e32
• Opis fizyczny: Bibliogr. 2 poz., wykr.

Twórcy

autor

Matthies Jörn H.

• University of Stuttgart, Institute of Chemical Process Engineering, Böblinger Straße 78, 70199 Stuttgart, Germany

autor

Dittmann Daniel

• University of Stuttgart, Institute of Technical Chemistry, Pfaffenwaldring 55, 70569 Stuttgart, Germany

• https://orcid.org/0000-0001-9110-0688

autor

Dyballa Michael

• University of Stuttgart, Institute of Technical Chemistry, Pfaffenwaldring 55, 70569 Stuttgart, Germany

• https://orcid.org/0000-0002-8883-1145

autor

Nieken Ulrich

• University of Stuttgart, Institute of Chemical Process Engineering, Böblinger Straße 78, 70199 Stuttgart, Germany

• https://orcid.org/0000-0001-7639-8375

Bibliografia

• 1. Muñoz Gandarillas A.E., Van Geem K.M., Reyniers M.-F., Marin G.B., 2014. Influence of the reactor material composition on coke formation during ethane steam cracking. Ind. Eng. Chem. Res., 53, 6358–6371. DOI: 10.1021/ie500391b.
• 2. Rieg C., Dittmann D., Li Z., Kurtz A., Lorenz I., Estes D.P., Buchmeiser M., Dyballa M., Hunger M., 2021. Noble metal location in porous supports determined by reaction with phosphines. Microporous Mesoporous Mater., 310, 110594. DOI: 10.1016/j.micromeso.2020.110594.

Uwagi

Opracowanie rekordu ze środków MNiSW, umowa nr POPUL/SP/0154/2024/02 w ramach programu "Społeczna odpowiedzialność nauki II" - moduł: Popularyzacja nauki (2025)