Patent ID: 8500893

Claim:
A ship flue gas scrubbing equipment for removing SO 2 from flue gas exhausted from a ship engine, comprising: a shell, including: a scrubbing section containing fillings, located at an upper portion of the shell; a seawater distributor located above the scrubbing section; a water tank with a seawater outlet, located at a lower portion of the shell beneath the scrubbing section; a scrubbing seawater inlet above the scrubbing section and configured to deliver scrubbing seawater to the seawater distributor; and a clean gas outlet at the top of the shell; a smoke conduit coupled to a wall of the shell, the smoke conduit leading high temperature gas into the shell from outside, the smoke conduit including: a gas inlet port extending out from the shell, and a gas lead-in port with an opening located between the scrubbing section and the water tank; and a cooler positioned inside the shell under the scrubbing section and used for cooling the high temperature gas, wherein the cooler is located along a pathway of the high temperature gas between the gas inlet port of the smoke conduit and the scrubbing section of the shell; and, wherein the seawater distributor is configure to direct scrubbing seawater received from the seawater inlet to flow downward first through the scrubbing section for removing sulfur from the gas and then through the cooler to reduce the temperature of the high temperature gas; and the cooler comprises one of the following: a tube cooler installed on the smoke conduit or inside a cavity of the smoke conduit; a sheet cooler installed on the smoke conduit or inside a cavity of the smoke conduit.