| abstract |
Disclosed herein is an SCR system of a vessel for discharging exhaust gas from an exhaust gas source in the vessel to an outside after performing purification of the exhaust gas. The SCR system includes an SCR reactor connected at a leading end thereof to the exhaust gas source and including a catalyst activated by the exhaust gas introduced into the SCR reactor, a reducing agent supply line supplying NH 3 or urea into the SCR reactor, and a bypass system forcing the exhaust gas discharged from the exhaust gas source to bypass the SCR reactor. |