Contact

Transform2Bio
SCI4climate.NRW
Funding: Ministry of Economic Affairs, Innovation, Digitalization and Energy of the State of North Rhine-Westphalia
VERBUND.NRW
Funding: State North Rhine-Westphalia

NewBIAS - New Biochars for the Improvement of Agricultural Soils
Funding: Ministry of Culture and Science of the State of North Rhine-Westphalia

Teaching

SS 2024	Seminar: Introduction to Industrial Ecology
WT 2023/24	Concepts and Case Studies in Industrial Ecology
ST 2022	Carbon Management Consulting
ST 2021	Transformation to the Bioeconomy
WT 2019/20	Sustainable Supply Chains
WT/ST	Mentoring of students in the context of scientific theses

Supervised theses

Type	Title
BT	Approaching Zero Carbon Concrete: The role of efficiency in achieving the climate goals of Germany
BT	Renewable Energies for Hydrogen Production - Potential Analysis in Regions of the Global South
BT	Towards energy-efficient non-residential buildings in Germany: A comparative techno-economic assessment of potential solutions
MT	A quantitative approach for sustainable decisions upon ageing buildings in the construction sector
MT	Analysing the Applications of Circular Economy in the Construction Sector
MT	Circular Economy im Bausektor: Recycling und Aufwertung von Bau- und Abbruchabfällen in Nordrhein-Westfalen
MT	Designing an optimal Hydrogen production and distribution network in Germany
MT	Designing a Logistic System for Collecting, Transporting & Storing Biomass in NRW
MT	Developing a Procurement Strategy to Ensure a Sustainable Supply of Semiconductors
MT	Dynamic Modelling and Real-Time Optimization of a Water Electrolysis Plant for Renewable Hydrogen Production
MT	Energetische Analyse von Potentialen zur Reduktion der treibhausgasbedingten Umweltbelastung in der deutschen Eisen- und Stahlgussindustrie anhand repräsentativer Technologien
MT	Energie- und Stoffstromanalyse der nordrheinwestfälischen Stahlherstellung und Prognose des Emissionsvermeidungspotentials wasserstoffbasierter Produktionsprozesse
MT	Feasibility Study on Minimizing the Carbon Footprint of Cast Iron Products while Maintaining their Technical Requirements
MT	Data-driven problem-solving framework with an advanced analytics study case in fast moving consumer goods industry
MT	Optimization of a European Production and Distribution Network for Cryogenic Liquefied Gases
MT	Potenziale und Herausforderungen des sozialen und ökologischen Strukturwandels der Region NRW vor dem Hintergrund des Klimawandels und Energiewende
MT	Regulatory framework for the planning and approval of a CO2 transport infrastructure in North Rhine-Westphalia
MT	Sustainable bioeconomy in North Rhine-Westphalia: A techno-environmental assessment of scale-up opportunities for regional biogas- and lignocellulosic ethanol production
MT	Techno-economic analysis of carbon capture and utilization (CCU) for fuel production in North Rhine-Westphalia
MT	Techno-economic-environmental (TEE) assessment of silicon carbide semiconductor utilization in the automotive sector
MT	Towards a hydrogen economy - Analysing the relevant policies and prospective supply and demand in Europe
MT	Towards a sustainable European bioeconomy: An optimisation-based economic assessment of second-generation bioethanol and biogas supply chains in North Rhine-Westphalia
MT	Towards Circular Economy in the Construction Industry: Analysing the urban stock of infrastructure in North Rhine-Westphalia
MT	Transformation to a sustainable economy - Mapping the future of the bioeconomy in North Rhine-Westphalia

Publications

Refereed journals

Kern, J.; Abdelshafy, A.; Walther, G. (2024): A global geospatial analysis to evaluate the impact of biochar on maize yield In: Journal of Environmental Management, Accepted

Yeates, C.; Abdelshafy, A.; Schmidt-Hattenberger, C.; Walther, G. (2024): Industrial CO2 transport in Germany: Comparison of pipeline routing scenarios In: International Journal of Greenhouse Gas Control, 104225, Issue 137. DOI: https://doi.org/10.1016/j.ijggc.2024.104225

Rütt, J.; Abdelshafy, A.; Walther, G. (2024): Using miscanthus and biochar as sustainable substrates in horticulture: an economic and carbon footprint assessment of their primary and cascading value chains In: Sustainable Production and Consumption, Volume 49, Pages 163-178. DOI: https://doi.org/10.1016/j.spc.2024.06.016

Abdelshafy, A.; Lambert, M.; Walther, G. (2024): MENA region as a potential hydrogen supplier for the European market: analysing a prospective route between Kingdom of Saudi Arabia and Germany In: The Oxford Institute for Energy Studies, Link: https://www.oxfordenergy.org/publications/mena-region-as-a-potential-hydrogen-supplier-for-the-european-market-analysing-a-prospective-route-between-kingdom-of-saudi-arabia-and-germany/, Issue OIES Paper: ET31

Abdelshafy, A.; Walther, G. (2023): Analyzing current carbon capture, utilization and storage (CCUS) research and pilot projects in the European cement sector In: The Oxford Institute for Energy Studies, Link: https://www.oxfordenergy.org/publications/analyzing-current-carbon-capture-utilization-and-storage-ccus-research-and-pilot-projects-in-the-european-cement-sector/, Issue OIES Paper: CM06

Abdelshafy, A.; Hermann, A.; Herres-Pawlis, S.; Walther, G. (2023): Opportunities and challenges of establishing a regional bio-based Polylactic Acid supply chain In: Global Challenges, Volume 2200218. DOI: https://doi.org/10.1002/gch2.202200218

Radloff, R.; Abdelshafy, A.; Walther, G. (2023): An integrative and prospective approach to regional material flow analysis: Modelling the decarbonisation of the North-Rhine Westphalian Steel Industry In: Journal of Industrial Ecology, Volume 37, Issue 3, Pages 662-675. DOI: https://doi.org/10.1111/jiec.13387

Abdelshafy, A.; Walther, G. (2023): Using dynamic-locational material flow analysis to model the development of urban stock In: Building Research & Information, Volume 51, Issue 1, Pages 5-20. DOI: https://doi.org/10.1080/09613218.2022.2142495

Abdelshafy, A.; Franzen, D.; Mohaupt, A.; Schüssler, J.; Bührig-Polaczek, A.; Walther, G. (2022): A Feasibility Study to Minimize the Carbon Footprint of Cast Iron Production while Maintaining the Technical Requirements In: Journal of Sustainable Metallurgy, Volume 9, Issue 1, Pages 249-265. DOI: https://doi.org/10.1007/s40831-022-00642-5

Abdelshafy, A.; Lambert, M.; Walther, G. (2022): The role of CCUS in decarbonizing the cement industry: A German case study In: Energy Insight, Link: https://www.oxfordenergy.org/publications/the-role-of-ccus-in-decarbonizing-the-cement-industry-a-german-case-study/, Volume 115, Pages 1-31

Abdelshafy, A.; Walther, G. (2022): Coupling carbon capture and utilization with the construction industry: opportunities in Western Germany In: Journal of CO2 Utilization, Volume 57, Issue 101866. DOI: https://doi.org/10.1016/j.jcou.2021.101866

Abdelshafy, A.; Walther, G. (2022): Exploring the effects of energy transition on the industrial value chains and alternative resources: A case study from the German federal state of North Rhine-Westphalia (NRW) In: Resources, Conservation and Recycling, Volume 177, Issue 105992. DOI: https://doi.org/10.1016/j.resconrec.2021.105992

Monographs

Abdelshafy, A. (2023): Towards climate-neutral and circular industrial systems - approaches for integrated modelling, assessment and planning at regional level. DOI: https://doi.org/10.18154/RWTH-2023-05379

Refereed articles in proceedings and anthologies

Finkewirth, L.; Abdelshafy, A.; Walther, G. (2023): A comparative environmental assessment of the cast iron and steel melting technologies in Germany In: Energy Proceedings, Volume 29, Issue 9. DOI: https://doi.org/10.46855/energy-proceedings-10296

Abdelshafy, A.; Hermann, A.; Herres-Pawlis, S.; Walther, G. (2022): Investigating the opportunities of establishing a regional bio-based polylactic acid supply chain: A case study from North Rhine-Westphalia In: Chemie Ingenieur Technik, Volume 94, Issue 9, Pages 1307-1307. DOI: https://doi.org/10.1002/cite.202255120

Abdelshafy, A.; Walther, G. (2021): Using the Urban Stock as A Carbon Sink: A Case Study from the German Federal State of North Rhine – Westphalia In: SINTEF Academic Press, SINTEF Proceedings 7, ISBN: 978-82-536-1714-5, Pages 310-317

Other journals

Abdelshafy, A.; Walther, G. (2023): Carbon capture and storage: smokescreen, white elephant, or linchpin? In: SDG Action, Link: https://sdg-action.org/wp-content/uploads/2023/11/SDG-Action-COP28-edition.pdf, Pages 56-57

Poster-presentations (selection)

Abdelshafy, A.; Walther, G. (2020): Reinisches Revier 2038: Analyzing the regional resources as a vital step towards bio-based sustainable supply chains In: Chancen des Strukturwandels – Neue Perspektiven für NRW

Talks (selection)

Bogs, S.; Abdelshafy, A.; Walther, G. (2024): Developing a game theoretic approach for planning a CO2 pipeline network. Annual conference of the Society for Operations Research in Germany, 04. September - 06. September 2024, Munich, talk on 06. September 2024

Stadnichuk, V.; Bogs, S.; Abdelshafy, A.; Walther, G. (2024): Towards an optimum carbon backbone: A Bilevel Model Approach for Efficient CO2 Pipeline Design and Price Policy in Germany. 33rd European Conference on Operational Research, 30. June - 03. July 2024, Copenhagen, talk on 03. July 2024

Bogs, S.; Abdelshafy, A.; Yeates, C.; Walther, G. (2023): Planning of CO2 Pipeline Networks under Uncertainty with Extended Scenario Analysis. Logistikmanagement-Tagung LM 2023, 13. September - 14. September 2023, Dresden, talk on 13. September 2023

Radloff, R.; Abdelshafy, A.; Walther, G. (2023): Modelling the regional transformation to hydrogen-based green steel: An integrative and prospective material flow analysis of the North Rhine-Westphalian steel industry. 11th International Conference on Industrial Ecology (ISIE), 02. July - 05. July 2023, Leiden, talk on 04. July 2023

Abdelshafy, A.; Walther, G. (2023): Using integrated MFA approaches to model industrial transformation: Case studies from the construction sector in Germany. 11th International Conference on Industrial Ecology (ISIE), 02. July - 05. July 2023, Leiden, talk on 04. July 2023

Abdelshafy, A.; Strunge, T.; Walther, G. (2023): A comparative techno-economic analysis of CO2 concrete curing and CO2 mineralization technologies. Trondheim Carbon Capture and Storage Conference (TCCS-12), 20. June - 21. June 2023, Trondheim, talk on 20. June 2023

Radloff, R.; Abdelshafy, A.; Walther, G. (2022): The implications of regional transformation towards hydrogen-based steel: A case study from western Germany. The 8th European Coke and lronmaking Congress (ECIC) & The 9th International Conference on Science and Technology of Ironmaking (ICSTI), 29. August - 02. September 2022, Bremen, talk on 30. August 2022

Finkewirth, L.; Abdelshafy, A.; Walther, G. (2022): A comparative environmental assessment of the cast iron and steel melting technologies in Germany. The 14th International Conference on Applied Energy (ICAE 2022), 08. August - 11. August 2022, Bochum, talk on 10. August 2022

Abdelshafy, A.; Walther, G. (2022): Potentials of sequestering the industrial emissions via carbonation: a case study from North Rhine- Westphalia/Germany. The Concrete Dialogue 2022, 03. June 2022, Brussels, talk on 03. June 2022

Krusenbaum, J.; Rothhöft, K.; Radloff, R.; Abdelshafy, A.; Walther, G. (2022): The role of recycling and novel technologies in mitigating the environmental impact of non-ferrous metals: a case study from Germany. International Conference on Resource Sustainability, 01. August - 04. August 2022, talk on 02. August 2022

Zabek, M.; Jegen, P.; Kreiß, L.; Abdelshafy, A.; Walther, G. (2022): Introducing a novel concept for an integrated demolition waste recycling center. International Conference on Resource Sustainability, 01. August - 04. August 2022, talk on 03. August 2022

Abdelshafy, A.; Walther, G. (2021): Transformation of the NRW construction sector - Implications from dynamic material flow analysis and building stock models. Wissenschaft trifft Wirtschaft 2021, 28. October 2021, talk on 28. October 2021

Abdelshafy, A.; Walther, G. (2021): Using the urban stock as a carbon sink: a case study from the German federal state of North Rhine-Westphalia. Trondheim Carbon Capture and Storage Conference (TCCS-11), 22. June - 23. June 2021, Virtual/Trondheim, talk on 23. June 2021

Abdelshafy, A.; Walther, G. (2021): Investigating the opportunities of coupling carbon capture and utilization with the supply chains of construction industry: a case study from western Germany. 18th International Conference on Carbon Dioxide Utilization, 18. July - 22. July 2021, Virtual/Daejeon, talk on 21. July 2021

Abdelshafy, A.; Merchan, A.L.; Walther, G. (2021): Designing a sustainable supply chain for bio-based succinic acid in North Rhine-Westphalia. 3rd Conference on Sustainable Supply Chains, 22. July - 23. July 2021, Virtual