A method of controlling an adjustable exhaust system for a marine engine includes receiving a vessel location of a marine vessel having an adjustable exhaust system and identifying a noise constraint based on the vessel location. A current exhaust mode of the adjustable exhaust system is identified. A determination is then made regarding whether the exhaust system is exceeding the noise constraint based on the current exhaust mode. If the noise constraint is exceeded, an instruction is generated to adjust the adjustable exhaust system to comply with the noise constraint.

A mobile emissions control system is provided for diesel engines operated on ocean-going ships at-berth. The emissions control system comprises two essential elements: an emissions capturing system and an emissions control system. The emissions control system may be mounted on a towable chassis or mounted on a barge, allowing it to be placed alongside ocean-going ships at-berth. The emission capturing system captures exhaust from a ship's diesel engine and conducts it into the emissions control system, which cleans the exhaust and then passes clean air into the atmosphere through an exhaust outlet.

An exhaust gas after-treatment device in a driveline application, which device comprising a casing having an upper surface, a lower surface and side surfaces connecting the upper and lower surfaces to form an enclosed volume. The casing is provided with an exhaust inlet opening and an exhaust outlet opening wherein exhaust gas is supplied to and discharged from the casing through the upper surface. At least one of the exhaust inlet and outlet openings is operatively connected to its corresponding inlet or outlet pipe by a pipe connector having a first opening facing the casing and a second opening facing away from the casing. The at least one pipe connector is arranged to be rotatable about the central axis of its associated inlet or outlet opening in the casing into a predetermined angular position relative to the opening in the casing.

A quick purification device for smoke and exhaust gas discharged from a marine engine includes a vertical communicating tube, a necked portion, first flared portion, second flared portion and exhaust tail tube are formed on the top end of the communicating tube in sequence from bottom to top, and a plurality of straight-through ceramic filters are configured between the first and second flared portions; a waste water diversion pipe is connected to the lower end of the communicating tube; an air inlet is in communication with the communicating tube, being connected to the exhaust outlet of a marine engine; a first exhaust gas flushing device, second exhaust gas flushing device and a third exhaust gas flushing device are configured inside the communicating tube in sequence; the first, second and third exhaust gas flushing devices can spray fluid toward the inside of the communicating tube.

A marine propulsion device includes an engine, an exhaust pipe to allow exhaust gas of the engine to pass through the exhaust pipe, and a cooling water supply passage to supply cooling water for the engine into the exhaust pipe toward a downstream side in a flow direction of the exhaust gas and cause the cooling water to flow circumferentially along an inner peripheral surface of the exhaust pipe.

A novel emissions control watercraft (STAXcraft) solving a long-felt but unsolved need regarding disadvantages associated with prior-art emissions servicing watercraft, the disadvantages selected from the group, but not limited to, the use of tugboats, securing or mooring servicing watercraft to a serviced vessel, additional expenses and time-delays and inefficiencies of land-based approaches, increased toxic emissions, increased greenhouse gases (GHG) emissions, danger from falling cargo, tanker safety, alongside mooring in narrow channels preventing other OGV's to pass safely, and cargo tank emissions.

An exhaust gas treatment apparatus is disclosed. An exhaust gas treatment apparatus according to an embodiment of the present disclosure includes a gas/liquid reactor contacting a treatment liquid and an emission-regulated gas included in exhaust gas, to absorb and remove the emission-regulated gas; a treatment liquid supply tank supplying the treatment liquid to the gas/liquid reactor; and a gas/liquid separation treatment liquid regeneration unit regenerating a waste treatment liquid in which the emission-regulated gas is absorbed, into a treatment liquid in which the emission-regulated gas is not absorbed, and supplying the regenerated treatment liquid to the treatment liquid supply tank, wherein the gas/liquid separation treatment liquid regeneration unit includes a gas/liquid separation membrane through which a gas can pass but a liquid cannot pass.

An oceangoing vessel exhaust pipe coupling used to temporarily couple to an oceangoing vessel exhaust pipe. Installation and removal of the coupling only requires a simple mechanism with three translational degrees of freedom and one rotational degree of freedom, thereby enabling remote coupling. The coupling adapts to a wide array of exhaust pipe shapes and sizes. This is accomplished by a unique shape that allows stable and balanced resting position on top of an exhaust pipe as well as a two-chamber configuration, wherein the two chambers are separated by a permeable partition. Furthermore, the unique shapes of the chambers deflect the exhaust gas stream towards the outlet of the coupling, regardless of exhaust pipe style, thereby increasing capture efficiency and extending the life of an attached fabric flexible hose.

A method for controlling the saturation level of gas in a liquid discharge includes obtaining temperature and pressure measurements of a solvent in a mixing vessel and obtaining a pressure measurement of a source feedstock in a feedstock tank, correlating the temperature and pressure measurements of the solvent to baseline data to generate a theoretical uptake rate for the source feedstock into the solvent and a theoretical flow rate of the source feedstock into the mixing vessel, and determining a required opening setting for a feedstock valve in the feedstock input line in order to achieve a desired liquid displacement in the mixing vessel. The method includes determining an uptake duration and achieving an uptake displacement equivalent to the reverse of the desired liquid displacement. The method includes generating a valve operating control law for how the feedstock valve should function in a cycle.

A reaction device of a marine SCR system comprises a conveying unit (110), a reaction chamber (120), at least one catalyst module (130), and an air homogenization chamber (140), wherein, the conveying unit (110) includes an input pipeline (111) and an output pipeline (112) sleeved outside the input pipeline (111). One end of the reaction chamber (120) is connected to the conveying unit (110). The reaction chamber (120) comprises an inner cylinder (121) and an outer cylinder (122) sleeved outside the inner cylinder (121), the inner cylinder (121) is in communication with the input pipeline (111), and the outer cylinder (122) is in communication with the output pipeline (112). The catalyst module (130) is provided between the inner cylinder (121) and the outer cylinder (122). The air homogenization chamber (140) is connected to the other end of the reaction chamber (120) and is in communication with both the inner cylinder (121) and the outer cylinder (122). With the reaction device of the marine SCR system whereby the outer cylinder is sleeved outside the inner cylinder, flue gas from the inner cylinder is turned by the air homogenization chamber and then flows back into the outer cylinder. This can not only substantially reduce the size of the reaction device to improve the integration of the SCR system, but also allow the flue gas to turn in the air homogenization chamber and then flow back, so that the flue gas and a reducing agent can be fully mixed in the air homogenization chamber to improve the catalytic reaction efficiency.