Exhaust Aftertreatment

Why? Task Mission

Large internal combustion engines remain indispensable in the sectors of power generation, marine, and heavy-duty transport, all of which are difficult to electrify. Their high-power density, efficiency, robustness, and excellent transient capability ensure continued relevance in the long term.

To achieve net-zero greenhouse gas emissions in these applications, the use of sustainable, climate-neutral fuels such as ammonia, hydrogen or e-methanol is a promising pathway. However, these alternative fuels do not automatically guarantee low pollutant emissions or the complete avoidance of climate-relevant gases. Even carbon-free fuels like ammonia can lead to the formation of nitrous oxide, a greenhouse gas with high global warming potential. Meeting ambitious environmental and climate targets, therefore, requires effective, application-specific exhaust aftertreatment solutions.

Project Duration: 2021-2029

Task Contact

Ramin Mehrabian Bardar

Dr. Ramin Mehrabian Bardar

Manager – Exhaust Aftertreatment & Carbon Capture Systems
Large Engines Competence Center (LEC) GmbH
Austria

+43 316 873-30096
ramin.mehrabian@lec.tugraz.at
www.lec.at

Key Deliverables

  • Characterization of Exhaust Profiles: Focus on analyzing exhaust emissions from advanced motor fuels, such as ammonia and methanol, under realistic operating conditions.
  • Catalytic Aftertreatment Evaluation: Investigation and assessment of catalytic exhaust aftertreatment systems for the control of emerging pollutants specific to advanced fuels.
  • Measurement Method Validation: Validation and evaluation of reliable and accurate measurement techniques for quantifying exhaust gas pollutants.
  • Policy and Regulatory Recommendations: Development of guidance for regulatory authorities aimed at minimizing emissions and supporting the adoption of sustainable technologies.

Policy Relevance

The EATS Task provides science-based evidence to support policymakers in promoting the use of sustainable advanced fuels. It ensures that the shift to low-GHG fuels simultaneously addresses both improved local air quality and climate objectives. The task also contributes to the development of regulatory frameworks that enable the effective deployment of emission control technologies. In addition, it offers technical guidance to industry and regulators, facilitating the integration of sustainable fuels into future mobility and power generation systems.

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