关键词: 船舶废气, 海水脱硫, 洗涤塔, 湿法

Abstract: This paper reviewed the research progresses of ship exhaust gas cleaning desulfurization equipment. Advantages and disadvantages of seawater treatment，alkali liquor and modified method of seawater were introduced. The hybrid system combining seawater with alkali liquor is more efficient economically and has a wide applicability range. Products from major manufacturers were discussed，focusing on the parameters and structures of the scrubbers. Effluent standards and its treatment were also introduced. The analysis of the research status of simultaneous removal of various pollutions from ship exhaust indicated that design efficiency，cost effective NOx oxidation device，and improvement of the ultrafine particle capture ability of wet process，are important factors. Simultaneous removal of SOx，NOx and PM by wet process could be the research direction of ship exhaust cleaning equipment in the future.

Key words: ship exhaust gas, seawater desulfurization, scrubbing tower, wet process