Brendelberger, Stefan and Vieten, Josua and Juttu Vidyasagar, Muralimohan and Roeb, Martin and Sattler, Christian (2018) Demonstration of thermochemical oxygen pumping for atmosphere control in reduction reactions. Solar Energy, 170, pp. 273-279. Elsevier. DOI: 10.1016/j.solener.2018.05.063 ISSN 0038-092X
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Official URL: https://www.sciencedirect.com/science/article/pii/S0038092X18304961
Abstract
Solar thermochemical cycles as a means to produce fuels such as hydrogen, carbon monoxide, or syngas using a metal oxide as oxygen carrier offer a promising route to the efficient conversion and storage of solar energy. Even though the theoretical potential of such cycles can be very attractive, many challenges for reaching high process efficiencies remain unsolved. One challenging aspect is the parasitic energy cost for maintaining low partial pressures of oxygen during the reduction step. As previously proposed by the authors, thermochemical oxygen pumps have the theoretical potential to maintain low partial pressures of oxygen at considerably lower energy costs than conventional mechanical pumps. The work presented here demonstrates the proof of concept of thermochemical oxygen pumping. The reduction extents of a metal oxide after temperature swing experiments are analyzed for test runs with and without thermochemical oxygen pumping, clearly showing higher reduction extents for the former cases. The effects of different operational parameters on the reduction of the metal oxide are investigated and options for reduction extent enhancement are depicted.
Item URL in elib: | https://elib.dlr.de/120146/ | ||||||||||||||||||
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Document Type: | Article | ||||||||||||||||||
Title: | Demonstration of thermochemical oxygen pumping for atmosphere control in reduction reactions | ||||||||||||||||||
Authors: |
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Date: | 17 May 2018 | ||||||||||||||||||
Journal or Publication Title: | Solar Energy | ||||||||||||||||||
Refereed publication: | Yes | ||||||||||||||||||
Open Access: | No | ||||||||||||||||||
Gold Open Access: | No | ||||||||||||||||||
In SCOPUS: | Yes | ||||||||||||||||||
In ISI Web of Science: | Yes | ||||||||||||||||||
Volume: | 170 | ||||||||||||||||||
DOI : | 10.1016/j.solener.2018.05.063 | ||||||||||||||||||
Page Range: | pp. 273-279 | ||||||||||||||||||
Publisher: | Elsevier | ||||||||||||||||||
ISSN: | 0038-092X | ||||||||||||||||||
Status: | Published | ||||||||||||||||||
Keywords: | Thermochemical cycle, Redox cycle, Reduction step, Oxygen partial pressure | ||||||||||||||||||
HGF - Research field: | Energy | ||||||||||||||||||
HGF - Program: | Renewable Energies | ||||||||||||||||||
HGF - Program Themes: | Solar Fuels | ||||||||||||||||||
DLR - Research area: | Energy | ||||||||||||||||||
DLR - Program: | E SW - Solar and Wind Energy | ||||||||||||||||||
DLR - Research theme (Project): | E - Solar Fuels | ||||||||||||||||||
Location: | Köln-Porz | ||||||||||||||||||
Institutes and Institutions: | Institute of Solar Research > Solar Chemical Engineering | ||||||||||||||||||
Deposited By: | Sattler, Prof. Dr. Christian | ||||||||||||||||||
Deposited On: | 07 Jun 2018 10:09 | ||||||||||||||||||
Last Modified: | 07 Jun 2018 10:09 |
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