Method and system for thermal regeneration of a catalyst by inlet turbine exhaust gas from a diesel engine, where a gas split stream (08) is led from the engine exhaust (02) through an eductor (04) and further to regeneration of a catalyst, wherein a cold air stream (09) is used to keep the regeneration gas stream at a desired constant temperature range.

There is provided an exhaust gas processing apparatus which improves the removal rate of harmful substances and also achieves a compact size. An exhaust gas processing apparatus (10) absorbing gas by creating contact between gas and liquid includes: an absorbing tower main body (11) in which an internal space is formed; a spray apparatus (12) which sprays liquid in a prescribed region in an up/down direction of the internal space; and a gas supply apparatus (13) which introduces gas into the absorbing tower main body (11), wherein the spray apparatus (12) includes: a trunk pipe (12b) which extends in the up/down direction in the prescribed region of the internal space; branch pipes (12c) which are connected to the trunk pipe (12b) and extend towards the inner wall of the absorbing tower main body (11); and spray nozzles (12d) which spray liquid supplied from the branch pipes (12c), wherein the spray nozzles (12d) are installed such that an angle formed between the center line of the spraying region of the spray nozzle (12d), and the lengthwise direction of the branch pipe (12c) is an acute angle.

Disclosed is an exhaust-gas after-treatment device for an internal combustion engine, in particular for a ship's diesel internal combustion engine that is operated with heavy oil, including: a housing through which exhaust gas flows; exhaust-gas purification chambers formed in the housing, which chambers hold catalysts and/or particulate filters in order to purify the exhaust gas; and muffler chambers formed in the housing, which chambers have a defined depth for muffling sound in the flow direction. The exhaust-gas purification chambers and the muffler chambers are arranged spatially in series and parallel to one another on the flow side.

An exhaust gas post treatment system for an internal combustion engine, in particular a heavy fuel oil-powered engine, including an SCR catalyst, using ammonia as a reducing agent for the denitration of the exhaust gas, and a device positioned upstream of the SCR catalyst by which ammonia or an ammonia precursor substance, which is converted to ammonia, introduced upstream of the SCR catalyst. Downstream of the SCR catalyst an exhaust gas scrubber is positioned, by which excess ammonia, contained in the exhaust gas leaving the SCR catalyst, together with sulfur oxides, can be scrubbed out of the exhaust gas forming ammonium salts while maintaining a pH value of approximately 6. For the control thereof, a bypass around the SCR catalyst can be provided as a westgate, or comprising an additional SCR catalyst.

Provided is a process that may comprise cooling an engine exhaust emissions comprising SO.sub.x on a vehicle that may come from an engine. The cooled engine exhaust emissions comprising SO.sub.x may be passed to one or more absorption units. The SO.sub.x may be extracted from the engine exhaust emissions with a sorbent supported on solid porous media in an absorption unit on the vehicle to form an absorbed SO.sub.x. The absorbed SO.sub.x may be desorbed, followed by forming one or more SO.sub.x product from the desorbed SO.sub.x. The one or more SO.sub.x product may be unloaded to an off-vehicle facility.

A water separator for use in a marine exhaust system comprises a horizontally disposed, generally cylindrical housing including a wet exhaust inlet, a dry exhaust outlet, and a water outlet. Wet exhaust entering the wet exhaust inlet is constrained against the inner housing wall by a variable geometry vane or baffle which causes the wet exhaust to accelerate such that centrifugal force causes the entrained water to separate from the exhaust gas. Separated water encounters a longitudinally disposed barrier and flows to the water outlet for discharge from the vessel. A tubular dry exhaust pipe is longitudinally disposed within the housing and includes an inlet disposed in proximity to a first end thereof, and an outlet projecting from a second end thereof.

According to an embodiment of the present disclosure, an exhaust gas treatment apparatus may include: a preprocessor configured to primarily remove harmful substances from exhaust gas produced by combustion; and a postprocessor configured to further remove harmful substances from preprocessed gas, which is the exhaust gas from which the harmful substances have been primarily removed by the preprocessor, wherein the postprocessor may include a postprocessor housing having a preprocessed gas inlet through which the preprocessed gas is introduced and a postprocessed gas outlet through which postprocessed gas from which harmful substances have been further removed by the postprocessor is discharged and forming a flow path of the preprocessed gas therein, and a diffuser disposed adjacent to the preprocessed gas inlet and configured to diffuse the preprocessed gas introduced through the preprocessed gas inlet.

The cooling device for a power source for a ship propulsion device that pumps up cooling water, from which foreign matters with sizes that cause clogging of a cooling water route have been removed, supplies the cooling water to a cooling water passage (30), and discharges the cooling water to outside after cooling a power source (10) includes: a filtration device (40, 40A, 40B) provided in the cooling water route to filtrate foreign matters remaining in the cooling water, and the filtration device is of a cartridge type that incorporates a filter (45, 72) for filtration disposed in a main water passage (P1) and a valve member (46, 66) configured to open and close a bypass water passage (P2) and that is configured such that in a case in which clogging occurs in the filter, the valve member opens to cause the cooling water to flow via the bypass water passage.

A noise reduction apparatus includes a housing, a first baffle component, and a second baffle component. The housing includes a first installation chamber configured to contain diesel generating equipment, and the first installation chamber has a top plate, a bottom plate, and a first side plate, and a second side plate that is disposed opposite the first installation chamber from the first side plate. An air intake vent is disposed on the first side plate, and an air exhaust vent is disposed on the second side plate. A first serpentine channel is formed in the first baffle component, and one end of the first serpentine channel is connected to the air intake vent. A second serpentine channel is formed in the second baffle component, and one end of the second serpentine channel is connected to the air exhaust vent.

The present invention provides a fuel supply system, for an eco-friendly ship, which selectively uses an existing fuel and an ammonia fuel or uses a mixture thereof as a fuel for a propulsion engine and a power generation engine of a ship so as to follow ship greenhouse gas regulations to be reinforced in phases at major points until 2050.