Boosting Reduction of Energy Intensity in cleaN STeelwork platfORM
Lead Research Organisation:
University of Cambridge
Department Name: Engineering
Abstract
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Organisations
People |
ORCID iD |
| Stuart Scott (Principal Investigator) |
Publications
Sukma MS
(2022)
Understanding the Behavior of Dicalcium Ferrite (Ca2Fe2O5) in Chemical Looping Syngas Production from CH4.
in Energy & fuels : an American Chemical Society journal
Zheng Y
(2023)
The exploration of NiO/Ca2Fe2O5/CaO in chemical looping methane conversion for syngas and H2 production
in Chemical Engineering Journal
| Description | We explored the use of mixed oxides containing elements typically found in a steelworks, i.e. oxides of iron, calcium and nickel. These were found to work well as material which could be used to donate oxygen to syngas and methane. The mixed oxide, calcium ferrite was found to be an active metal oxide which could be used to first partially oxidise methane, and then be reoxidised with either steam or Co2 to make hydrogen of syngas. The fact that CaO is produced when the material converts methane also allows, under some circumstances, CO2 to be captured so that it can be released later in a pure form for carbon sequestration. This latter process requires the methane or syngas to be processed at temperatures < ~650 C. The reactions with methane for reduction are slow but can be enhanced by adding Nickel to the solid material. Copper-based materials were also investigated. These proved less desirable for integration into a steelworks as the spent material cannot be re-introduced back into the steel process. However, these materials proved to be robust over cycling with syngas. The performance tended to stabilise regardless of how the material was produced, reaching a stable set of phases it cycles between, which differ from the equilibrium phase. |
| Exploitation Route | These materials investigated in this work have can be applied to other chemical looping processes for hydrogen production, chemical and carbon capture. |
| Sectors | Chemicals,Energy,Environment |
| Description | Talk by Paul Hodgeson at IEAGHG High temperature looping meeting 20-21 January 2020 - Geleen, the Netherlands |
| Form Of Engagement Activity | Participation in an activity, workshop or similar |
| Part Of Official Scheme? | No |
| Geographic Reach | International |
| Primary Audience | Professional Practitioners |
| Results and Impact | Talk on the work going on in the Brienstorm project. |
| Year(s) Of Engagement Activity | 2020 |
| Description | Talks given to ghgt-16. xploration of CaO/Ca2Fe2O5 composites for combined calcium looping and chemical looping combustion (CaL-CLC) application in the steel industry |
| Form Of Engagement Activity | A talk or presentation |
| Part Of Official Scheme? | No |
| Geographic Reach | International |
| Primary Audience | Industry/Business |
| Results and Impact | Talk given to ghgt-16 Exploration of CaO/Ca2Fe2O5 composites for combined calcium looping and chemical looping combustion (CaL-CLC) application in the steel industry |
| Year(s) Of Engagement Activity | 2022 |