Addressing NOx Emissions in HCNG Blended Fuel Engine Development: Technologies and Strategies

This paper addresses the challenges and strategies associated with reducing nitrogen oxide (NOx) emissions in hydrogen-compressed natural gas (HCNG) blended fuel engine development. As a promising alternative fuel, HCNG blends offer the potential to lower carbon emissions and improve engine efficiency. However, controlling NOx emissions remains a critical issue. We explore various technologies and strategies for NOx reduction, including advanced combustion techniques, after-treatment systems, and optimized fuel injection methods. The paper also examines the trade-offs between NOx reduction and engine performance, along with the regulatory and economic implications. Case studies of HCNG engine implementations provide insights into practical applications and outcomes. This research aims to provide a comprehensive understanding of the current advancements and future directions in NOx emission control for HCNG blended fuel engines.