EXHAUST GAS PURIFICATION DEVICE FOR MARINE DIESEL ENGINE THAT USES LOW-QUALITY FUEL CONTAINING HIGH CONCENTRATION OF SULFUR COMPONENT

摘要

Provided is an exhaust gas purification equipment for a marine diesel engine which uses low-quality fuel such as fuel oil containing high-concentration sulfur components, and is capable of carrying out a discharging operation of waste treatment water into the ocean even during sailing in and outside of special sea areas. The exhaust gas purification equipment for a marine diesel engine which uses low-quality fuel such as fuel oil containing high-concentration sulfur components includes: a selective catalytic reduction device (hereinafter, referred to as "SCR") installed in an exhaust pipe connected to an exhaust manifold of the engine; and a scrubber that hardly removes PM contained in the exhaust gas by utilizing a difference in diffusion speed between gas and particles, and is disposed on the downstream side of the SCR.