Abstract: A wet inline scrubber with a side inlet using alkali scrubber fluid for reducing the amount of SOx in the exhaust gas of engines of a marine vessel, including a vertically extending exhaust gas reaction tube, lower and upper scrubbing chamber including alkali scrubber fluid injectors to scrub the exhaust gas, and a used scrubber fluid drain. The lower chamber has an exhaust gas outlet with a central opening arranged to let the exhaust gas pass through and a body extending from the central opening up to an outer wall thereof which is in contact with the inner wall of the exhaust gas reaction tube. Between the body and the inner wall, slit-shaped openings allow scrubber fluid to flow from the upper scrubbing chamber to the lower scrubbing chamber and used scrubber fluid to flow over the inlet side for the exhaust gas in the lower scrubbing chamber.

Abstract: An arrangement for a marine vessel, comprising a combustion unit arranged in an engine room of the marine vessel, an exhaust gas cleaning system in flow connection with the combustion unit and being arranged for receiving and for cleaning the exhaust gas from the combustion unit to a cleaned exhaust gas, a cleaned gas exhaust pipe being in flow connection with the exhaust gas cleaning system and arranged for receiving the cleaned exhaust gas, a plume control system, comprising an air intake for taking in ambient air, a heater for heating the ambient air producing heated air, and a gas mixer placed in the cleaned gas exhaust pipe and arranged for mixing the cleaned exhaust gas in the cleaned gas exhaust pipe with the heated air resulting in an exhaust gas mixture that is blown out into the atmosphere via the one or more exhaust gas outlets.

Abstract: The application relates to a marine exhaust flue gas desulphurization system and method comprising a wet scrubber system for reducing the amount of sulphur oxides present in an exhaust flue gas of one or more diesel engines of a marine vessel using a scrubber liquid and being configured to run in an open and in a closed loop mode. A magnesium hydroxide slurry prepared by hydrolysis of magnesium oxide powder with water is contacted with the used scrubber liquid in order to clean the used scrubber liquid and/or to neutralize the acidity thereof.

Abstract: The present application relates to a system and method to determine a total flow rate Qtot of a washing liquid at a washing liquid inlet of an exhaust gas cleaning unit installed in a marine vessel, the exhaust gas cleaning unit comprising a scrubber pipe and two or more spraying nozzles mounted at different height levels in the scrubber pipe, being adapted to spray washing liquid into the exhaust gas present in the scrubber pipe and being operated by a valve adapted to open and to close the respective spraying nozzle. The system comprises at least one pressure sensor arranged to measure the pressure P outside the scrubber pipe before the valve operating the uppermost active spraying nozzle, and a process controller calculating the total flow rate Qtot of the washing liquid at the exhaust gas inlet of the exhaust gas cleaning unit by summing up the flow rate Qind of the washing liquid flowing through each of the individual active spraying nozzles.

Abstract: The present application relates to an arrangement for a marine vessel, comprising a combustion unit arranged in an engine room of the marine vessel, an exhaust gas cleaning system in flow connection with the combustion unit and being arranged for receiving and for cleaning the exhaust gas from the combustion unit to a cleaned exhaust gas, a cleaned gas exhaust pipe being in flow connection with the exhaust gas cleaning system and arranged for receiving the cleaned exhaust gas, a plume control system, comprising an air intake for taking in ambient air, a heater for heating the ambient air producing heated air, and a gas mixer placed in the cleaned gas exhaust pipe and arranged for mixing the cleaned exhaust gas in the cleaned gas exhaust pipe with the heated air resulting in an exhaust gas mixture that is blown out into the atmosphere via the one or more exhaust gas outlets.

Abstract: The present application relates to a spray tower for cleaning the exhaust gas from marine engines, wherein the spray tower, in installed position, is vertically positioned and comprises a central exhaust gas pipe for introducing exhaust gas into the spray tower through an exhaust gas inlet positioned at a proximal end of the central exhaust gas pipe, the central exhaust gas pipe being positioned at a bottom end of the spray tower, an exhaust gas outlet at a top end of the spray tower for withdrawing purified exhaust gas from the spray tower, one or more spray devices for providing scrubber liquid within the spray tower counter-current to the general exhaust gas flow, and at least two engine exhaust gas pipes being in fluid connection with the distal end of the central exhaust gas pipe. Furthermore, a method for reducing the amount of SOx in exhaust gas is described.

Abstract: The present application relates to a system and method to determine a total flow rate Qtot of a washing liquid at a washing liquid inlet of an exhaust gas cleaning unit installed in a marine vessel, the exhaust gas cleaning unit comprising a scrubber pipe and two or more spraying nozzles mounted at different height levels in the scrubber pipe, being adapted to spray washing liquid into the exhaust gas present in the scrubber pipe and being operated by a valve adapted to open and to close the respective spraying nozzle. The system comprises at least one pressure sensor arranged to measure the pressure P outside the scrubber pipe before the valve operating the uppermost active spraying nozzle, and a process controller calculating the total flow rate Qtot of the washing liquid at the exhaust gas inlet of the exhaust gas cleaning unit by summing up the flow rate Qind of the washing liquid flowing through each of the individual active spraying nozzles.

Abstract: The present application relates to a spray tower (1) arranged to be vertically positioned and having an inner space (100), wherein the spray tower comprises, a central exhaust gas pipe (7) arranged for introducing exhaust gas into the inner space of the spray tower through an exhaust gas inlet (2) positioned at a proximal end (7a) of the central exhaust gas pipe, the central exhaust gas pipe being positioned at a bottom end (1a) of the spray tower in installed position, the central exhaust gas pipe being in fluid connection with the inner space of the spray tower through an exhaust gas inlet (2) at a top end of the central exhaust gas pipe, and at least one exhaust gas outlet (3 arranged for withdrawing purified exhaust gas from the inner space of the spray tower, the exhaust gas outlet being positioned at a top end (1b) of the spray tower in installed position, the exhaust gas outlet being in fluid connection with the inner space of the spray tower, wherein from the exhaust gas inlet to the exhaust gas outle

Abstract: The application relates to a marine exhaust flue gas desulphurization system for reducing the amount of sulphur oxides present in an exhaust flue gas of one or more diesel engines of a marine vessel and being configured for being able to run in an open and in a closed loop mode, and comprising when configured to run in closed loop mode. The system comprises a wet scrubber system comprising at least one wet scrubber arranged for scrubbing the exhaust flue gases originating from the diesel engine of the marine vessel using a scrubber liquid, thereby generating a used scrubber liquid, wherein the wet scrubber comprises one or more used scrubber liquid withdrawal pipes for withdrawing the used scrubber liquid from the wet scrubber.