CFD Modeling of Reactor Concepts to Avoid Carbon Deposition in Pyrolysis Reactions. Issue 5 (23rd February 2021)

• Record Type: Journal Article
• Authors: Becker, Tobias; Keuchel, Florian; Agar, David W.
• Other Names: Freund Hannsjörg guestEditor.; Sauer Jörg guestEditor.; Wachsen Olaf guestEditor.
• Is Part Of: Chemie Ingenieur Technik. Volume 93:Issue 5(2021)
• Page Start: 762
• Page End: 770
• Publication Date: 2021-02-23
• Subjects: Carbon deposition -- Hydrogen -- Methane pyrolysis -- Reactor modeling; Chemical engineering -- Patents -- Periodicals; Chemical engineering -- Periodicals; Chemical industry -- Periodicals; Chemistry, Technical -- Periodicals; 660.05
• DOI: 10.1002/cite.202000234
• Languages: English
• ISSNs: 0009-286X

Abstract

Abstract: Methane pyrolysis in an externally heated tubular reactor inevitably ends with clogging of the reactor. Thin molten metal wall films protect the walls from carbon depositions. A falling film reactor and a rotating film reactor are investigated by CFD simulation. The results show the considerable advantages of a rotating film reactor compared to the vertical film reactor. An alternative route for carbon production from methane is the implementation of an exothermic chlorination reaction. The tubular reactor concept involves the inflow of inert gas at the reactant inlet and through porous walls to ensure that the reaction takes place in the center, thus, largely reducing carbon deposits. Abstract : For the further development of methane pyrolysis processes, which are an important component in the generation of emission‐free hydrogen, reactor concepts are designed. Here, CFD simulations are used to investigate reactors with a liquid wall film and a concept for methane halogenation.