Selective catalytic reduction as a secondary method to remove NOx from exhaust gas of the ship's propulsion diesel engine (CROSBI ID 532207)
Prilog sa skupa u zborniku | izvorni znanstveni rad | međunarodna recenzija
Podaci o odgovornosti
Komar, Ivan ; Antonić, Radovan ; Matić, Petar
engleski
Selective catalytic reduction as a secondary method to remove NOx from exhaust gas of the ship's propulsion diesel engine
The exhaust emissions from large marine diesel engines on ocean going vessels contains among other pollutants a significant amount of Nitrogen Oxides (NOx) wich are the main byproduct of combustion and they contribute to acid rain as well as the formation of harmful ground-level ozone and photochemical smog. The manufacturers of the marine vessel engines and the shipbuilders have responded to the demands to reduce vessel emissions by improving the operation of the engines and by incorporating emissions control technologies in the design of new vessels. Selective Catalytic Reduction (SCR), fuel emulsions, water injection systems and a number of engine modifications are the samples of the technologies being employed. The challenge is to control NOx emissions without increasing fuel consumption and smoke. An SCR unit is an effective means of conditioning the exhaust gas after the combustion process for reducing NOx already formed in the combustion process. The process essentially involves injecting ammonia in the exhaust stream and in the presence of a catalyst the NOx reacts with the ammonia and forms water vapor and nitrogen This paper describes method to remove nitrogen oxides from exhaust gas of the slow speed marine diesel propulsion engine B&W-5L90MC using selective catalytic reduction. The efficiency of the SCR system was tested on engine room full mission simulator Kongsberg ERS-L11 MAN B&W-5L90MC– VLCC Version MC90-IV which is installed at Faculty of Maritime studies in Split. The results are illustrated by figures and graphs which shows a 95% NOx reduction in exhaust gas after has been treated trought SCR reactor.
marine diesel engine ; exhaust emissions ; nitrogen oxides ; selective catalytic reduction
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Podaci o prilogu
xx-yy.
2007.
objavljeno
Podaci o matičnoj publikaciji
Proceedings of the IFAC Conference on Control Applications in Marine Systems
Vukić, Zoran ; Sauro, Longhi
Zagreb: CEPOST
Podaci o skupu
IFAC Conference on Control Applications in Marine Systems
predavanje
18.09.2007-21.09.2007
Bol, Hrvatska