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Technology Development for the Pyrolysis of Hydrocarbons in Liquid Metal

2023; Wiley; Volume: 96; Issue: 1-2 Linguagem: Inglês

10.1002/cite.202300107

1522-2640

Leonid Stoppel, Benjamin Dietrich, Inés Durán, Christoph Hofberger, Ralf Krumholz, Neele Uhlenbruck, Thomas Wetzel,

Catalytic Processes in Materials Science

Abstract This article describes the development of a new technology based on the application of liquid metal and aims to produce hydrogen by decarbonization (pyrolysis process) of both natural and artificially synthesized hydrocarbons. When biogas with a sufficiently high carbon dioxide content is used as a feedstock, or by the targeted addition of CO 2 to methane, a mixture of hydrogen and carbon monoxide (synthesis gas) can be produced. Furthermore, the paper describes another very interesting application of the technology to create negative emissions. In this scenario, the processes direct air capture, methanation, electrolysis and methane pyrolysis are combined to synthesize solid carbon from atmospheric CO 2 . The broad range of process options investigated indicates that, when the technology is scaled up to industrial scale, the result will be a process that is flexible in both the use of reactants and the resulting products.