Exhaust gas processing apparatus

An exhaust gas processing apparatus that processes exhaust gas, comprising:

• a reaction tower that includes an internal space extending in a height direction from a bottom portion where the exhaust gas is introduced to a top portion where the exhaust gas is emitted;
• a trunk tube that extends in the height direction in the internal space of the reaction tower and transports a liquid;
• at least three branch tubes that are provided extending from an outer side surface of the trunk tube toward an inner side surface of the reaction tower, each of the at least three branch tubes including an ejecting section that ejects the liquid supplied from the trunk tube, and are provided at positions at different heights;
• and
• an exhaust gas introducing section that causes the exhaust gas to be introduced into the reaction tower in a manner to circulate the exhaust gas, wherein
• ejection regions of the liquid where the liquid is ejected from respective ejecting sections of branch tubes that are adjacent in the height direction each include a region in which the ejection regions partially overlap in an overhead view as seen from the height direction,
• intervals between the at least three branch tubes in the height direction are smaller in the top portion of the reaction tower where the exhaust gas is emitted than in the bottom portion of the reaction tower where the exhaust gas is introduced,
• the ejection regions of each branch tube overlap in the overhead view respective ejection regions of two or more other ones of the at least three branch tubes,
• the exhaust gas processing apparatus is configured for installation in a ship,
• the ship includes a plurality of floors in a height direction,
• the reaction tower is provided across two or more floors of the ship, and
• a cross-sectional area of the internal space of the reaction tower in a plane perpendicular to the height direction differs according to the floor of the ship.