Hydrogen production and Carbon Capture by Methane Pyrolysis
Background:
The goals defined in the Paris Agreement to limit global warming are linked to a drastic reduction in greenhouse gas emissions. These targets require the establishment of a sustainable energy system, with hydrogen being one of the most important and promising energy sources. As part of the German government's National Hydrogen Strategy, it is intended to contribute to achieving the climate targets as a key technology. Compared to water electrolysis, the pyrolysis of methane can produce hydrogen with significantly lower energy requirements and without CO2 emissions compared to conventional steam reforming. At the same time, carbon is actively fixed in the process, which can be used in various applications, for example as a reinforcing material in rubber or in electrodes.
Project:
Using an interdisciplinary approach, the pyrolysis of methane is investigated both experimentally and numerically. Herein, the pyrolysis process is to be optimized in terms of hydrogen yield and methane conversion in a self-developed high-temperature setup. Mechanistic aspects, such as the determination of any intermediates or the influence of hydrogen as a dilution gas, are clarified in this context. The experimental results are used to develop microkinetic models in order to simulate the gas-phase reactions as well as the formation of solids both end-of-pipe and spatially resolved.
Contact: Ahmet Çelik, Patrick Lott, Olaf Deutschmann
Funding: Internal funding
Related Publications:
P. Lott, M. B. Mokashi, H. Müller, D. J. Heitlinger, S. Lichtenberg, A. B. Shirsath, C. Janzer, S. Tischer, L. Maier, O. Deutschmann, ChemSusChem, 2023, 16, e202300300, doi.org/10.1002/cssc.202201720.
M. Mokashi, A. B. Shirsath, A. Çelik, P. Lott, H. Müller, S. Tischer, L. Maier, J. Bode, D. Schlereth, F. Scheiff, D. Flick, M. Bender, K. Ehrhardt, O. Deutschmann, Chemical Engineering Journal, 2024, 485, 149684, doi.org/10.1016/j.cej.2024.149684.
M. Mokashi, A. B. Shirsath, P. Lott, H. Müller, S. Tischer, L. Maier, O. Deutschmann, Chemical Engineering Journal, 2024, 479, 147556, doi.org/10.1016/j.cej.2023.147556.
