Speaking during a lunch that the Hong Kong Shipowners Association (HKSOA) organised, Dr. Xie Xie, director of the Waterborne Transportation Research Institute at the Chinese Ministry of Transport, said that he is not sure if China will allow open-loop scrubbers as a compliance measure in its ECAs and coastal waters.
Open-loop scrubbers use seawater to clean the exhaust. Seawater is supplied through a pipe and while CO2 dissolves into the water, it creates carbonic acid, and bicarbonate...
https://safety4sea.com/china-possible-to-ban-open-loop-scrubbers/