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.
摘要:
Provided is an exhaust gas purification equipment for a marine diesel engine allowing discharge of treated waste water of treated discharge water to the ocean even during sailing in and outside special areas, particularly in exhaust gas treatment of a marine diesel engine using low-quality fuel such as fuel oil containing high-concentration sulfur components. The exhaust gas purification equipment is characterized by providing a scrubber that hardly removes PM using a difference in diffusion speed between gas and particles to an exhaust pipe continued to an exhaust manifold of an engine.
摘要:
Provided is an exhaust gas purification equipment for a marine diesel engine allowing, particularly in exhaust gas treatment of a marine diesel engine using fuel equivalent to or lower than fuel oil in quality, discharge of treated waste water of treated discharge water to the ocean even during sailing in and outside special areas. In the exhaust gas purification equipment for the marine diesel engine using fuel equivalent to or lower than fuel oil in quality, a gas cooler is provided to an exhaust gas route or EGR gas route, an electrostatic cyclone exhaust gas purification equipment is provided on a downstream side of the gas cooler, and a PM-free scrubber that hardly dissolves or removes PM is provided downstream from the electrical precipitation means.
摘要:
Provided is an exhaust gas treatment equipment for a marine diesel engine capable of providing high PM collecting rate and a PM burning process in the ship. The exhaust gas treatment equipment includes: a tubular collection unit composed of a discharge electrode for charging particulate matters contained in exhaust gas from the engine and a precipitation electrode for collecting the particulate matters charged; a PM-low-concentration exhaust gas delivery pipe and a PM-high-concentration exhaust gas delivery pipe; a PM-free scrubber provided in the PM-low-concentration exhaust gas delivery pipe; a precipitation means for separating and collecting the particulate matters detached from the tubular collection unit by using a cyclone for precipitation; a burning device for burning PM precipitated by the precipitation means; and a recirculation pipe for recirculating combustion exhaust gas generated in the burning device to the collection unit or an exhaust pipe on the upstream side of the collection unit.
摘要:
Provided is an exhaust gas purification equipment for a marine diesel engine allowing discharge of treated waste water of treated discharge water to the ocean even during sailing in and outside special areas, particularly in exhaust gas treatment of a marine diesel engine using low-quality fuel such as fuel oil containing high-concentration sulfur components. The exhaust gas purification equipment is characterized by providing a scrubber that hardly removes PM using a difference in diffusion speed between gas and particles to an exhaust pipe continued to an exhaust manifold of an engine.