Reduce carbon dioxide levels in the air
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© fotobieshutterb - adobe.stock.com
© fotobieshutterb - adobe.stock.com
Reduce CO2 Levels in the Air
Our mission is to lower atmospheric CO₂ to a sustainable minimum by deploying advanced, scalable technologies. We drive innovation in hydrogen utilization, next-generation carbon capture, and carbon valorization to enable deep industrial decarbonization. Viewing CO₂ as both a critical emissions driver and a valuable resource, we develop high-efficiency CCUS solutions, with emphasis on BECCS and DACCS systems capable of delivering durable negative emissions. In parallel, we pioneer bio-based enhancements for the concrete sector, leveraging microbial and fungal platforms such as Trichoderma reesei and Mortierella alpina to improve durability and recycling performance. Through integrated process engineering, data-driven modeling, and advanced analytical tools, we translate scientific insight into transformative technologies for a low-carbon future.
Current Topics
| Contact Person | Sebastian Diem (E166-07-2, opens in new window) |
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| Abstract | The Testing Laboratory for Combustion Systems and Emissions provides accredited and notified testing services for a wide range of combustion technologies. Our expertise covers performance and emission measurements for solid, liquid, and gaseous fuels, ensuring compliance with national and European standards. The laboratory combines state-of-the-art instrumentation with deep process understanding to deliver accurate and reliable results for both industry and research partners. Beyond standard testing, we support the development and optimization of innovative combustion systems, alternative fuels, and emission reduction technologies. By linking analytical precision with applied engineering, the laboratory contributes to advancing cleaner and more efficient energy conversion solutions.. |
| Keywords | Analytics, Fuels, Combustion Systems, Methods, Laboratory |
| Guiding Principles | Sustainable energy production Reduce CO2 levels in the air |
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| Cooperation Partners |
| Contact Person | Josef Fuchs (E166-07-2) |
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| Abstract | Reducing CO₂ emissions is one of the central challenges of the energy transition. This project develops and optimizes technologies for capturing carbon dioxide from industrial processes and ambient air. We explore physical and chemical capture methods, focusing on efficiency, scalability, and integration with downstream utilization. Through modeling and experimental validation, we assess process performance and environmental benefits. The research contributes to establishing carbon capture as a key component of sustainable energy and production systems. |
| Keywords | Sustainable Carbon, Carbon Dioxide Removal, Negative Green House Gas Emissions |
| Guiding Principles | Reduce CO2 levels in the air |
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| Cooperation Partners |
| Contact Person | Stavros Papadokonstantakis (E166-06-3) |
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| Abstract | The Carbon Circular Economy aims to minimize carbon loss and maximize resource efficiency throughout production and consumption cycles. This project studies how biomass and waste materials can be effectively integrated into sustainable carbon supply chains. We assess logistics, conversion routes, and environmental impacts using systems modeling and life cycle analysis. The results provide strategies for coupling carbon utilization with renewable energy systems, supporting policy development and industrial decision-making toward a climate-neutral economy. |
| Keywords | Process sytem engineering, Process modelling and optimization, Life cycle assessment |
| Guiding Principles | Carbon-based products from sustainable materials Reduce CO2 levels in the air |
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| Cooperation Partners |
| Contact Person | Markus Bösenhofer (E166-02-2) |
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| Abstract | Computational Fluid Dynamics (CFD) offers powerful insights into complex reactive flow systems, helping to improve energy efficiency and reduce emissions. In this project, CFD is applied to model thermochemical conversion processes such as combustion, gasification, and pyrolysis. By coupling chemical kinetics with heat and mass transfer, we explore how process conditions influence reaction pathways and product yields. Advanced numerical simulations allow us to predict performance under realistic industrial conditions and to evaluate new reactor concepts before physical testing. The results contribute to the design of cleaner, safer, and more efficient energy and chemical production systems, supporting the transition toward sustainable technologies. |
| Keywords | CFD, Thermochemical conversion, reactive flows, multiphase flows, experimental validation |
| Guiding Principles | Sustainable energy production Reduce CO2 levels in the air |
| Funding | COMET/FFG-K1-MET "SusMet4Planet" 2023-2027 FFG-Nr. 892415, opens an external URL in a new window COMET/FFG K1-MET 2019-2023 FFG-Nr. 869295 COMET/FFG-K1-MET 2015-2019 FFG-Nr. 844607, opens an external URL in a new window |
| Cooperation Partners |
| Contact Person | Stefan Müller (E166-07-2) |
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| Abstract | Fluidized bed systems offer outstanding flexibility for thermal and thermochemical conversion of solid fuels and materials. Our research focuses on understanding and improving these complex multiphase systems, which are used for energy generation, waste treatment, and material synthesis. We study particle dynamics, heat and mass transfer, and reaction kinetics using both experimental and modeling approaches. The goal is to enhance process stability, efficiency, and emission control. By integrating fundamental research with industrial-scale applications, we develop innovative solutions that support a sustainable and resource-efficient energy and materials economy. |
| Keywords | Base Chemicals, Chemical Looping Combustion, Dual-Fluidized-Bed, Sorbtion Enhanced Reforming |
| Guiding Principles | Sustainable energy production Reduce CO2 levels in the air |
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| Cooperation Partners |
| Contact Person | Stefan Pflügl (E166-04-1) |
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| Abstract | Thermophilic microorganisms offer unique advantages for industrial bioprocesses, including faster reaction rates, improved gas solubility, and reduced risk of contamination. This project investigates gas fermentation at elevated temperatures using thermophilic bacteria capable of converting syngas or CO₂/H₂ mixtures into valuable chemicals. We study metabolic pathways, process control, and reactor design to achieve efficient and stable operation. The findings contribute to developing robust, high-performance biotechnological processes for renewable carbon conversion under industrially relevant conditions. |
| Keywords | Formate, methanol, anaerobic bioprocesses, metabolic engineering, energy efficiency |
| Guiding Principles | Carbon-based products from sustainable materials Reduce CO2 levels in the air |
| Funding | |
| Cooperation Partners |
| Contact Person | Michael Harasek (E166-02-2) |
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| Abstract | Efficient gas separation is central to clean energy systems and low-carbon technologies. This project focuses on developing and optimizing separation processes for hydrogen purification, biomethane upgrading, and carbon capture. Using advanced membrane and adsorption techniques, we evaluate performance parameters such as selectivity, permeability, and energy demand. Modeling and experimental validation go hand in hand to identify optimal process configurations. The goal is to provide scalable, energy-efficient separation solutions that can contribute to the global shift toward renewable fuels and carbon-neutral production systems. |
| Keywords | Green Hydrogen, Biomethane, Carbon Capture, Process Intensification |
| Guiding Principles | Sustainable energy production Reduce CO2 levels in the air |
| Funding | |
| Cooperation Partners |
| Contact Person | Franz Winter, Mark Berchtold (E166-03-2) |
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| Abstract | Hydrogen is a key enabler for decarbonized industry and sustainable energy systems. This project investigates hydrogen-based reaction pathways for the production of fuels and chemicals. We study catalytic and thermochemical processes where hydrogen serves as a reactant or reducing agent, focusing on reaction kinetics, catalyst stability, and process integration. The goal is to enable efficient coupling of renewable hydrogen production with industrial applications, reducing fossil dependence and supporting carbon-neutral manufacturing. |
| Keywords | Hydrogen, Utilization, Defossilization, Decarbonization |
| Guiding Principles | Reduce CO2 levels in the air Sustainable energy production |
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| Cooperation Partners |
| Contact Person | Maricruz Sanchez, Stylianos Spyroglou (E166-03-1) |
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| Abstract | Induction heating offers a precise and energy-efficient method for activating catalysts directly at their active sites. This project explores the design and optimization of catalytic systems that can be selectively heated using electromagnetic fields. By controlling temperature at the nanoscale, we aim to enhance reaction rates, reduce energy losses, and enable faster process start-up and shut-down. The combination of advanced materials engineering, process modeling, and experimental validation paves the way for next-generation catalytic processes that are both efficient and adaptable to renewable energy inputs. |
| Keywords | |
| Guiding Principles | Sustainable energy production Reduce CO2 levels in the air |
| Funding | |
| Cooperation Partners |
| Contact Person | Oliver Spadiut (E166-04-2) |
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| Abstract | Microalgae and cyanobacteria are versatile biofactories capable of converting light, CO₂, and nutrients into a broad range of valuable products, from biofuels to high-value biochemicals. This project focuses on optimizing cultivation systems and metabolic pathways to enhance productivity and resource efficiency. By integrating photobioreactor design, process control, and strain improvement, we aim to establish scalable, sustainable production systems. The results support carbon capture and valorization strategies that contribute to a circular bioeconomy. |
| Keywords | |
| Guiding Principles | Carbon-based products from sustainable materials Reduce CO2 levels in the air |
| Funding | |
| Cooperation Partners |
| Contact Person | Astrid Mach-Aigner (E166-05-1) |
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| Abstract | Concrete is one of the three largest contributors to global anthropogenic CO₂ emissions. Extending its service life is therefore crucial for improving sustainability in construction. This research topic explores microbial based strategies to enhance the durability and self-healing capacity of concrete. Approaches include microbial calcite precipitation, enzymatic surface treatments, and bio-based additives that mitigate degradation. By combining bioprocess insights with structural engineering, we aim to reduce maintenance frequency, conserve resources, and significantly lower the material’s carbon footprint. The results will support the transition to longer-lasting, climate-resilient building materials and infrastructure. |
| Keywords | |
| Guiding Principles | Reduce CO2 levels in the air |
| Funding | |
| Cooperation Partners |
| Contact Person | Franz Winter, Mark Berchtold (E166-03-2) |
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| Abstract | While carbon dioxide is a greenhouse gas, it is also a promising carbon source for circular chemical production. This project focuses on understanding the reaction kinetics of CO₂ conversion processes, such as methanation, reforming, and hydrogenation. We investigate the interplay between catalysts, temperature, and gas composition to identify optimal operating conditions. By combining experimental data with kinetic modeling, we aim to design efficient CO₂ utilization processes that contribute to sustainable carbon management and climate mitigation. |
| Keywords | Carbon Capture, CO2 Utilization, CCS, CCU |
| Guiding Principles | Reduce CO2 levels in the air Carbon-based products from sustainable materials |
| Funding | |
| Cooperation Partners |
| Contact Person | Walter Wukovits (E166-02-1) |
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| Abstract | Process simulation provides a virtual laboratory for analyzing and optimizing chemical and biotechnological processes. This project combines simulation with life cycle assessment (LCA) to evaluate both technical performance and environmental impact. Using state-of-the-art modeling tools, we explore energy and material balances, heat integration strategies, and emission profiles. By linking process models with real-world data, we can identify efficiency improvements and design more sustainable process configurations. The integration of LCA ensures that innovations are assessed holistically—from raw materials to end-of-life—enabling informed decision-making for sustainable industrial development. |
| Keywords | Simulation, Balancing, Process Integration, Heat Integration, Sustainability Assessment |
| Guiding Principles | Carbon-based products from sustainable materials Reduce CO2 levels in the air |
| Funding | COMET/FFG-K1MET Simulation III, opens an external URL in a new window (Projekt 2.7, 2023-2027) COMET/FFG-K1MET Simulation II (Projekt 3.4, 2019-2023) Horizon2020-Waste2Fuels, opens an external URL in a new window (2016-2018) FP7-HyTime, opens an external URL in a new window (2012-2015) |
| Cooperation Partners |
| Contact Person | Matthias Steiger (E166-05-2), Astrid Mach-Aigner (E166-05-1) |
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| Abstract | Industrial fungi such as Aspergillus niger and Trichoderma reesei are key producers of enzymes, acids, and bioactive molecules. This project investigates how their metabolism and stress responses can be optimized for sustainable production. We focus on improving strain robustness, yield, and substrate utilization efficiency through genetic and process engineering. Integrating omics technologies with bioprocess monitoring, the research aims to establish more efficient and environmentally friendly fungal production systems for future industrial applications. |
| Keywords | yeast, metabolic engineering, carbon assimilation, nitrogen assimilation |
| Guiding Principles | Reduce CO2 levels in the air Carbon-based products from sustainable materials |
| Funding | TU Wien Doctoral School CO2 Refinery, FWF Cluster of Excellence Circular Bioengineering (https://www.doi.org/10.55776/COE17) |
| Cooperation Partners |
| Contact Person | Franz Winter, Mark Berchtold (E166-03-2) |
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| Abstract | Thermochemical energy storage (TCES) enables the efficient storage and reuse of thermal energy from renewable and waste heat sources. In this project, we investigate reversible gas–solid reactions for medium- and high-temperature applications. Materials characterization, reactor design, and process modeling are combined to evaluate system performance and long-term stability. The aim is to develop scalable storage concepts that can balance fluctuating renewable energy supply and demand, thereby improving the efficiency and flexibility of future energy systems. |
| Keywords | thermochemical energy storage |
| Guiding Principles | Sustainable energy production Reduce CO2 levels in the air |
| Funding | |
| Cooperation Partners |
| Contact Person | Stefan Pflügl (E166-04-1) |
|---|---|
| Abstract | Thermophilic microorganisms offer unique advantages for industrial bioprocesses, including faster reaction rates, improved gas solubility, and reduced risk of contamination. This project investigates gas fermentation at elevated temperatures using thermophilic bacteria capable of converting syngas or CO₂/H₂ mixtures into valuable chemicals. We study metabolic pathways, process control, and reactor design to achieve efficient and stable operation. The findings contribute to developing robust, high-performance biotechnological processes for renewable carbon conversion under industrially relevant conditions. |
| Keywords | gas fermentation, syngas, biomass gasification, metabolic engineering, thermophiles |
| Guiding Principles | Carbon-based products from sustainable materials Reduce CO2 levels in the air |
| Funding | |
| Cooperation Partners |