Performance enhancement of ammonia-fueled engine by using dissociation catalyst for hydrogen generation
| Autor: | Song-Charng Kong, Kyunghyun Ryu, George E. Zacharakis-Jutz |
|---|---|
| Rok vydání: | 2014 |
| Předmět: |
Hydrogen
Renewable Energy Sustainability and the Environment Inorganic chemistry Energy Engineering and Power Technology chemistry.chemical_element Selective catalytic reduction Condensed Matter Physics Catalysis Ammonia chemistry.chemical_compound Hydrogen carrier Fuel Technology chemistry Hydrogen fuel enhancement NOx Hydrogen production |
| Zdroj: | International Journal of Hydrogen Energy. 39:2390-2398 |
| ISSN: | 0360-3199 |
| DOI: | 10.1016/j.ijhydene.2013.11.098 |
| Popis: | The effect of combustion of hydrogen generated by an ammonia dissociation catalyst on engine performance and exhaust emissions in a spark-ignition engine using ammonia-gasoline was investigated. An ammonia dissociation catalyst coated with 2% ruthenium on 3.175-mm alumina pellets were used in order to analyze the effect of the catalyst as an ammonia cracker to decompose ammonia into hydrogen and nitrogen. Results show that combustion of hydrogen generated by an ammonia dissociation catalyst resulted in improved engine performance and reduced exhaust emissions. The conversion rate of ammonia into hydrogen was affected by the flow rate of ammonia, and the catalyst was very effective at low to medium flow rates, resulting in significantly increased engine power and decreased fuel consumption. With the use of the catalyst, emissions of CO, HC, NH3 and NOx were reduced considerably. Overall, it was demonstrated the ammonia dissociation catalyst can enable ammonia to be used as a hydrogen carrier for use in internal combustion engines effectively. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect