We are currently supplying Sea Sentry to the marine industry’s leading provider of Exhaust Gas Cleaning Systems and our systems are now installed in over 34 vessels," said CTG's Stephanie Lavelle.
To learn more about these systems and current users, please contact: Stephanie Lavelle
Ship exhaust gas emissions from marine diesel engines release harmful gases and particulate matter into the atmosphere. Of particular concern are emissions comprising of NOX, SOx and hydrocarbon particulates, together with CO2, which are detrimental to human health and the environment. To make ships greener and prevent pollution, the IMO has established a number of new regulations to reduce emissions, and continues to tighten regulations on sulphur content in marine fuel in order to reduce sulphur dioxide emissions from ships. When the global limit drops to 0.5% in 2020, the shipping industry will face a difficult decision – switch to expensive low sulphur fuel (with an economic impact estimated at tens of billions annually) or to implement relatively lower cost exhaust gas cleaning systems.
One method of doing this is to clean emissions before release using an exhaust gas cleaning system. All varieties of wet scrubber systems use wash water which must be monitored at all times to avoid discharges that may exceed regulations & damage the environment. CTG's Sea Sentry provides a wash water monitoring system - it monitors both the sensor inlet and outlet of wet exhaust gas scrubber systems. It is a turnkey solution which measures Polycyclic Aromatic Hydrocarbon, Turbidity (to ISO 7027: 1999), Temperature and pH. It incorporates an integral pump, de-bubbler, pressure relief valves and a flow meter.
In addition to SOx, emissions from marine diesel fuels contain particulate matter and polycyclic aromatic hydrocarbons (PAHs). Wet scrubbers clean a wide range of pollutants out of the gas, including SOx and PAHs. One of the principle challenges associated with wet scrubbing is handling the wash water discharge since PAHs are harmful to both people and the environment. Therefore, after scrubbing, the wash water is treated and monitored for PAHs prior to being discharged in the sea. This reduces the possibility of pollution shift from air to water, which would otherwise negate the benefits of exhaust gas cleaning.
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