We are glad to announce that our partner RWE will present the scientific paper “Closing the Carbon Cycle – Demonstrating back-up power production from e-Fuels in gensets and recycling of the engine exhaust gas”, which explains a crucial aspect of the ECO2Fuel project, at the 17th Greenhouse Gas Control Technology Conference (GHGT-17) in Calgary, Canada, from 20th to 24th October 2024.
The GHGT-17 is the premier international conference on greenhouse gas reduction technologies, with a specific focus on carbon capture, utilisation, and storage (CCUS). This event will bring together researchers, industry leaders, government officials, and business partners fromaround the world to explore cutting-edge technology, innovations, and greenhouse gas mitigation strategies.
This will be possible thanks to the participation of our partner RWE Power (RWE) which is also part of Germany’s largest power producer. The company contributes with its power production capacity of about 13 GW based on lignite, nuclear and hydro power to the broad energy mix of the RWE group with renewable energies and natural gas. RWE is also Germany’s largest consumer of sewage sludge, a renewable source of CO2 and invests in the development of environmentally friendly technologies.
In the framework of ECO2Fuel, RWE works on demonstrating the process for producing and using climate-friendly synthetic fuels from CO2, aiming to integrate the transport and energy sectors. This involves testing the 1MW ECO2Fuel large-scale demonstrator for over 2000 hours in an industrial setting to reach TRL 7-8. They will also deliver fuel samples for further analysis and demonstrate the use of these fuels in transport and power generation.
The German Aerospace Center (DLR) is excited to announce its participation in four major events throughout October 2024, where we will showcase our groundbreaking ECO2Fuel project. This initiative is part of our ongoing efforts to develop sustainable, renewable energy solutions that address global energy challenges. Below is a recap of the events where DLR will highlight the ECO2Fuel project.
1. Quantum Effects – Stuttgart
Date: 8–9 October 2024
Location: Stuttgart, Hall 2, Booth D15
At the Quantum Effects event, DLR will highlight the advanced quantum computing models used in optimizing the ECO2Fuel process. Our participation in this event underscores the pivotal role that cutting-edge technology, such as quantum effects, plays in the acceleration of green fuel solutions.
2. SolarPACES – Rome
Date: 8–11 October 2024
Location: Rome
SolarPACES is the leading conference for the solar power and chemical energy storage community. DLR will be presenting its advancements in solar-driven chemical processes, focusing on how ECO2Fuel leverages concentrated solar energy to produce carbon-neutral fuels, a significant step towards decarbonizing the energy sector.
This event brings together global innovators in the hydrogen industry, and DLR will be presenting how ECO2Fuel integrates with hydrogen technologies to enable carbon-neutral fuel production. DLR’s presence here will highlight the synergies between ECO2Fuel and hydrogen technology, furthering the goal of creating a clean, sustainable energy infrastructure.
4. Electric & Hybrid Aerospace Technology Symposium – Stuttgart
Date: 30–31 October 2024
Location: Frankfurt, Booth 410
As part of this symposium, DLR will showcase the role of ECO2Fuel in the future of aviation, specifically within the electric and hybrid aerospace sector. ECO2Fuel has the potential to revolutionize sustainable fuel production for aerospace applications, paving the way for cleaner skies.
ECO2Fuel is a cutting-edge initiative focused on the conversion of renewable energy into carbon-neutral synthetic fuels. It represents DLR’s commitment to advancing innovative, green technologies in the fight against climate change and towards achieving net-zero carbon emissions.
ECO2Fuel Achieves Major Milestone with Scaled-Up 50kW Stack Design
After a rigorous two-and-a-half-year development process, the ECO2Fuel team has successfully reached a significant milestone.
In a recent review meeting including a site visit at VITO in Belgium, the team showcased – in the presence of the European Commission project officer – their groundbreaking achievements on: The successful assembly of the 50kW stack on the ECO2Fuel electrolyser testing site and on cell components including electrocatalysts, membranes and bipolar plates.
A unique 50kW large-stack design
One of the most ambitious goals of the ECO2Fuel project has been realised: the development and implementation of a 50 kW stack within the ECO2Fuel electrolyser system. This stack is the core of the ECO2FUEL electrolysis process where CO2 is converted to e- fuels with the use of sustainable electricity. The electrolyser system is able to work at elevated pressures, has a continuous gas monitoring system and ability to recycle the cathodic gas mixture in order to increase the conversion of CO2.
Scaling up the system is a key objective of the project, with the aim of testing it at 1MW scale on the RWE site in Germany by 2026. This requirement necessitated a cell design of 1500 cm² exceeding most currently used, pressurised CO2 electrolysis stacks. For the 50kW stack, in total 25 cells of 1500cm² are used, which creates a total area of 3,75m². The 1500cm² cell equals the current state-of-the-art in PEM (proton exchange membrane) water electrolysis. The reason for choosing this size of the stack was mainly the possibility to easily scale this stack further to 1MW without changing the single cell design. Already now several challenges were encountered and dealt with, such as sealing of the stack at higher pressures, gas- and liquid flow management, structural integrity of the stack components, etc.
Currently, the team is conducting extensive testing to ensure the system’s efficiency, focusing on the electricity conductivity of the membranes, the chemical conversion process, and overall system stabilization.
CO2 electrolyser stack characteristics:
Rectangular shaped electrodes
Innovative way to decouple cathodic reaction from oxygen evolution reaction (OER) on the anode
Suitable for gas/liquid process
Possibility to use very thin active components such as electrodes and membranes
Fit for pressures up to 45barg
Stay tuned and follow us on LinkedIn to get weekly updates about our work and next steps!
Sabrina Campagna Zignani’s Poster Presentation Showcases Innovative Use of Non-CRM Materials for Synthetic Fuel Production
At the 9th Symposium on Hydrogen, Fuel Cells, and Advanced Batteries, held in the vibrant setting of Hyceltec 2024, the National Research Council of Italy (CNR) made waves with a groundbreaking poster presentation by Sabrina Campagna Zignani. The presentation focused on an innovative approach to the electrochemical conversion of carbon dioxide (CO2) into valuable synthetic fuels using non-critical raw materials (non-CRM).
A New Horizon in Synthetic Fuel Production
Zignani’s research delves into the current challenges and advancements in CO2 conversion technologies. Traditionally, copper-based materials have been the catalysts of choice due to their effectiveness in promoting this reaction. However, Zignani’s work introduces a novel copper oxide electrocatalyst combined with silver (CuO 70% Ag 30%), synthesized via the oxalate method and tested in a flow cell system.
Promising Results in Electrochemical Experiments
The electrochemical experiments, conducted at room temperature across varying potentials (-1.05V to -0.75V vs. RHE) in the presence of 0.1 M KHCO3, yielded impressive results. Gas and liquid chromatographic analysis revealed that the CuOx-based electrodes demonstrated a 25% selectivity for formic acid (HCOOH) at -0.55V, while ethylene (C2H4) achieved a 20% selectivity at -1.05V over CuOx.
Diverse Product Range from CO2 Conversion
The study highlighted the formation of various valuable chemicals including ethylene, ethanol, and propanol at more positive potentials. Additionally, products such as carbon monoxide (CO), acetate (CH3COO), ethylene glycol (C2H6O2), propionaldehyde (C3H6O), glycoaldehyde (C2H4O2), and glyoxal (C2H2O2) were detected, showcasing the versatility and potential of this catalytic system.
A Step Towards Sustainable Energy Solutions
The findings presented by Sabrina Campagna Zignani emphasize the promising future of synthetic fuel production from CO2 in alkaline environments at room temperature. This research marks a significant step forward in the quest for sustainable energy solutions, reducing dependency on critical raw materials and advancing the field of green chemistry.
For more details on the symposium and the innovative research presented, visit Hyceltec 2024.
We successfully commissioned the exhaust gas feeding system into our carbon capture pilot plant, located on the premises of RWE. During the test, a diesel engine was run at full load, and all of its exhaust gas was fed into the carbon capture unit.
Remarkably, we achieved a CO2 capture rate of over 90%, approximately 95%, despite the diesel exhaust having a lower CO2 content compared to the lignite-fired power plant emissions. This difference posed a greater challenge to the capture process, requiring extra vigilance and expertise from our operators. However, they managed the process efficiently and effectively.
While there are still some open items that need to be addressed, we are pleased to report that the system is now operational.
Our project coordinator, Faria Huq from the German Aerospace Center (DLR), presented the ECO2Fuel project at the 245th ECS meeting in San Francisco, USA. This prestigious event provided an excellent platform to showcase the groundbreaking work being done under the ECO2Fuel initiative. Funded by the EU Horizon 2020, the project is making significant advancements in converting CO2 into valuable chemicals and fuels at low temperatures.
Faria about the key highlights and developments shared during the meeting:
“I’m happy to share that ECO2Fuel project was presented at the 245th ECS meeting in San Francisco, USA! 🚀
The ECO2Fuel project, funded by EU Horizon 2020, is dedicated to innovate cutting-edge technology that converts CO2 into valuable chemicals and fuels under low temperature conditions. 🌱
During my presentation, I have shared the development in terms of cathode’s gas diffusion electrode, anion exchange membrane and 50kW electrolyser for large-scale fuel and alcohol production via CO2RR. Our work delves into the fabrication of the catalyst layer on porous transport layer, and this plays an important role in achieving high faradaic efficiencies for carbonaceous fuel production.
I was delighted to present our work to highly sought out scientists and industry experts. Their interest in our progress continues to show how valuable and important it is continuing making development.
A huge thank you to my incredible project partners who continue to put their effort in making incredible breakthroughs. Together, we’re pushing towards developing renewable energy system that help to prevent greenhouse gas emission. 💪
Stay tuned for more updates as we continue to innovate and drive change in the energy sector!”
b) selected SEM image of Cu2O electrocatalyst produced by MONOLITHOS
Development of NiFeOx electrocatalyst for OER
Anode NiFe oxide material developed under the ECO2Fuel project demonstrates high performance towards O2 Evolution Reaction (OER) and has been successfully produced in large scale by MONOLITHOS (Figure 1). The high electrochemical efficiency of the upscaled material has been verified into a CO2-H2O electrochemical cell.
a) NiFe oxide electrocatalyst’s production at MONOLITHOS premises
b) XRD pattern andc) selected SEM image of the material
Development of Cu2O electrocatalyst for CO2RR
Cathodic Cu2O material developed under the ECO2Fuel project demonstrates significant advancements in enhanced activity towards CO2 Reduction Reaction (CO2RR). The electrocatalyst is successfully produced by MONOLITHOS (Figure 2). Optimization of synthetic parameters and large-scale development of the material is ongoing for preparing highly efficient electrocatalyst with minimal wastes and energy consumption.
a) XRD patternb) selected SEM image of Cu2O electrocatalyst produced by MONOLITHOS
We are happy to announce that ECO2Fuel will be showcased at the upcoming Energy Fair of the European Sustainable Energy Week (EUSEW) in Brussels from June 11th to 13th.
The EUSEW is an annual event that serves as a platform to network with key actors committed to promoting energy efficiency and renewable energies, while also facilitating knowledge exchange on effective policies and fostering innovation aligned with the EU’s energy and climate objectives. By bringing together influential figures insustainable energy, the Energy Fair encourages robust social connections and the sharing of critical insights, laying foundations for future cooperation.
Our participation in this event is made possible through the support of our partner, META Group, who will host an informative stand alongside representatives from various projects including RESPONDENT, RESPECT, TIGON, SSTAR, eFORT, CST4ALL, iEPB, HYScale, North Adriatic Hydrogen Valley – NAHV, H-HOPE, as well as the European Commission’s Horizon Results Booster initiative.
The Energy Fair is open to all onsite attendees at EUSEW 2024. We invite you to visit us on June 11th and 12th from 9:00 to 18:00 CEST, and on June 13th from 9:00 to 17:30 CEST. Find more information about the European Sustainable Energy Week here.
Last week, members of the project alliance convened in Mol, Belgium, at VITO’s premises for an engaging 5th general assembly meeting. The assembly centred on reviewing the significant advancements from the last six months and planning future actions.
Achievements and Challenges of MONOLITHOS in the ECO2Fuel Project
MONOLITHOS, a company actively engaged in the ambitious ECO2Fuel project, has marked significant milestones in the field of electrocatalyst development and environmental sustainability. This article highlights the key achievements and challenges faced by MONOLITHOS in this groundbreaking endeavor.
Achievements of MONOLITHOS in ECO2Fuel
1. Stable Scaling of NiFeOx Electrocatalyst: A notable accomplishment is the successful scaling up of the NiFeOx electrocatalyst process. This scaling has remarkably maintained the structure, composition, morphology and performance of the electrocatalyst, ensuring its effectiveness and reliability.
2. Development of Cu2O Electrocatalyst: The Cu2O electrocatalyst, developed under the ECO2Fuel project, has shown exceptional results. Its potential has been recognized with the decision to upscale its production, indicating its pivotal role in future applications.
3. Enhanced Anode Catalyst Activity: The company has fully achieved its milestone regarding the enhancement of anode catalyst activity. This improvement signifies a leap forward in the efficiency and effectiveness of the catalysts used.
4. Progress in Cathode Catalyst Activity: The cathodic catalyst milestone has been successfully achieved by MONOLITHOS, demonstrating significant advancements in enhanced cathode catalyst activity. This progress is a testament to the company’s commitment to continuous improvement in catalyst development.
5. High Leaching Efficiencies: In an environmental triumph, the company has achieved over 99% leaching efficiencies for Cu and Ni from End-of-Life Membrane Electrode Assemblies (EoL MEAs). This was accomplished using an environmentally friendly hydrometallurgical leaching process, marking a significant step in sustainable practices.
6. Innovation with PtPd/CeZrO4 Catalyst: The synthesis of a PtPd/CeZrO4 catalyst through a wet impregnation process represents another innovative stride. This catalyst is set to be tested under simulated conditions involving diesel, biodiesel, and alcohol blends.
Figure 1. XRD pattern of NiFe-based anode electrocatalyst.Figure 2. Recycling of EoL MEAs following an environmentally friendly hydrometallurgical leaching processFigure 3. Representative pictures of the preparation of a PtPd/CeZrO4 catalyst following patented PROMETHEUS protocolFigure 4. Fabrication of a full-scale monolith using the slurry method to be tested under simulated diesel (diesel biodiesel/alcohol) blends conditions
Challenges Faced by MONOLITHOS
Despite these achievements, MONOLITHOS faces certain challenges in the ECO2Fuel project:
1. Cathodic Performance Targets: One of the main challenges is achieving the high-performance targets set for the cathodic aspect of the project. Meeting these targets is crucial for the overall success and efficiency of the project.
2. Supply Chain Delays: There is a potential risk of delays in acquiring necessary materials, such as electrocatalyst precursors, equipment, and other essential components. These delays could impact the project timeline and its milestones.
Conclusion
MONOLITHOS’s involvement in the ECO2Fuel project has been marked by significant achievements, particularly in the development and scaling of innovative electrocatalysts and in advancing environmentally friendly processes. However, challenges such as meeting high-performance targets and potential supply chain delays pose hurdles that need to be navigated. The company’s continued dedication and innovative approach will be key in overcoming these challenges and achieving further success in sustainable energy solutions.
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