| tail gas treatment of ship engine exhaust gas treatment plant (Marine diesel exhaust gas purifier)

Release time:

2022-11-17

After years of development, China's shipbuilding industry has made a breakthrough in shipbuilding. It has the strength of world advanced shipbuilding competition in terms of infrastructure, production capacity, product type, quality and technical level, and has taken a leading position in China's shipbuilding industry in the world.

Waste gas pollution in ships has become an important source of atmospheric pollution in our country, due to the lag of environmental awareness in our country, lack of emission standards, over the years, the supervision and control is not in place, most of the ship waste gas in our country is direct emission, causes serious atmospheric pollution to the many port cities and inland river areas, Marine diesel engine emission contains dozens of carcinogenic chemical substances. The main nitrogen oxides (NOx), carbon oxides (COx), sulfur oxides (SOx), particulates (PM) and so on. The control of ship exhaust pollution has attracted great attention from the government departments, and the emission control standards of ship pollution have been further strengthened. In order to control the NOx emission of Marine container, it is necessary to carry on the denitrification treatment to the ship exhaust gas. At present, selective catalytic reduction is the most widely used technology for denitrification of waste gas.

SCR selective catalytic reduction is the use of reducing agent urea in the tail pipe after pyrolysis and hydrolysis into ammonia (NH3), under the action of the catalyst, NH3 reacts with NOx to become non-toxic nitrogen (N 2) and water (H2O) discharge, thereby reducing the content of NOx in the exhaust. Meet the domestic diesel generator set and diesel vehicles for NOx emission index requirements. Its operation is safe and reliable, small footprint, high efficiency.

However, through the online monitoring of ship exhaust emissions, we can also monitor the treatment effect of ship exhaust emissions and provide data support for the implementation of ship emission reduction policies.

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