Carbon dioxide free production of hydrogen

verfasst von: L. Stoppel, T. Fehling, T. Geißler, E. Baake, T. Wetzel
Abstract: The present report summarizes the theoretical modelling and experimental investigation results of the study on the direct thermal methane cracking. This work is a part of the LIMTECH-Project (Liquid Metal Technologies) funded of Helmholtz Alliance and was carried out from 2012 to 2017. The Project-part B5 "CO₂-free production of hydrogen" focused on experimental testing and particularly on modelling the novel methane cracking method based on liquid metal technology. The new method uses a bubble column reactor, filled with liquid metal, where both the chemical reaction of methane decomposition and the separation of gas fraction from solid carbon occur. Such reactor system was designed and built in the liquid metal laboratory (KALLA) at KIT. The influences of liquid metal temperature distribution in reactor and feed gas flow rate on methane conversion ratio were investigated experimentally at the temperature range from 930 C to 1175 C and methane flow rate at the reactor inlet from 50 to 200 mL_n/min. In parallel with experimental investigations, a thermochemical model, giving insight in the influence of the above mentioned parameters has been developed at KIT and a CFD model was developed at LUH to get an overview about the bubble dynamics in the reaction system. The influence of different bubble sizes and shapes, multi-inlet coalescence effects as well as the potential of electromagnetic stirring have been investigated.
Organisationseinheit(en): Institut für Elektroprozesstechnik
Externe Organisation(en): Karlsruher Institut für Technologie (KIT)
Typ: Konferenzaufsatz in Fachzeitschrift
Journal: IOP Conference Series: Materials Science and Engineering
Band: 228
ISSN: 1757-8981
Publikationsdatum: 03.08.2017
Publikationsstatus: Veröffentlicht
Peer-reviewed: Ja
ASJC Scopus Sachgebiete: Werkstoffwissenschaften (insg.), Ingenieurwesen (insg.)
Elektronische Version(en): https://doi.org/10.1088/1757-899X/228/1/012016 (Zugang: Offen)

BibTeX

@article{9f61fe49fa4542f68300d7dfcabac7a1,
title = "Carbon dioxide free production of hydrogen",
abstract = "The present report summarizes the theoretical modelling and experimental investigation results of the study on the direct thermal methane cracking. This work is a part of the LIMTECH-Project (Liquid Metal Technologies) funded of Helmholtz Alliance and was carried out from 2012 to 2017. The Project-part B5 {"}CO2-free production of hydrogen{"} focused on experimental testing and particularly on modelling the novel methane cracking method based on liquid metal technology. The new method uses a bubble column reactor, filled with liquid metal, where both the chemical reaction of methane decomposition and the separation of gas fraction from solid carbon occur. Such reactor system was designed and built in the liquid metal laboratory (KALLA) at KIT. The influences of liquid metal temperature distribution in reactor and feed gas flow rate on methane conversion ratio were investigated experimentally at the temperature range from 930 C to 1175 C and methane flow rate at the reactor inlet from 50 to 200 mLn/min. In parallel with experimental investigations, a thermochemical model, giving insight in the influence of the above mentioned parameters has been developed at KIT and a CFD model was developed at LUH to get an overview about the bubble dynamics in the reaction system. The influence of different bubble sizes and shapes, multi-inlet coalescence effects as well as the potential of electromagnetic stirring have been investigated.",
author = "L. Stoppel and T. Fehling and T. Gei{\ss}ler and E. Baake and T. Wetzel",
note = "Funding information: This study was financially supported by the Helmholtz Society within the Helmholtz Alliance for Liquid Metal Technologies (LIMTECH). The authors would like to sincerely thank Prof. Carlo Rubbia, Prof. Alberto Ab{\`a}nades, Dr. Delia Salmieri and Dr. Stefan St{\"u}ckrad of the Institute of Advanced Sustainability Studies, Potsdam, who piloted and enabled a previous complementary project on the topic and supported this project in multiple ways.; Final LIMTECH Colloquium and International Symposium on Liquid Metal Technologies, LIMTECH 2017 ; Conference date: 19-09-2017 Through 20-09-2017",
year = "2017",
month = aug,
day = "3",
doi = "10.1088/1757-899X/228/1/012016",
language = "English",
volume = "228",
journal = "IOP Conference Series: Materials Science and Engineering",
issn = "1757-8981",
publisher = "IOP Publishing Ltd.",
number = "1",
}