Exhaust Gas Cleaning Systems (EGCS). Scrubbers
IMO enforces rigorous rules for maritime sulfur emissions, aiming to reduce air pollution from fuel sulfur.
Compliance is achievable with Shanghai Electric’s Scrubber cutting the need for costlier low-sulfur fuels.
With a digital, smart, and modular design, it enables remote monitoring and operation. Effectively using low-grade steam waste heat reduces capture costs, contributing to climate change mitigation and improving energy efficiency.
The main advantages of Scrubbers:
✓ the internal elements of the tower are bolted together without moving parts
✓ the main equipment is unified depending on operating conditions and has a high share of use in the industry
✓ highly reliable products
✓ low maintenance requirements
✓packaging in the tower is checked and cleaned every two years
✓no special maintenance requirements
Stages of development and implementation of an exhaust gas purification system
Sulfur Oxides (SOx) Emission Control Area (SECA):
The installation of an exhaust gas treatment system can meet the requirements of current regulations when the vessel uses conventional heavy fuel oil. In accordance with your own needs, you can choose open, closed, mixed types of system operation mode. According to different sailing conditions, the ability to operate the system in different areas can be incorporated at the design stage to flexibly switch operating modes depending on the driving conditions and emission requirements, in order to meet the most stringent environmental protection requirements at present, in specific area.
Test platform for creating a model for ship desulfurization. Tests are carried out in open system, closed system and mixed mode under various operating conditions.
2012 — the sulfur content in marine fuel oil decreased from 4.5% to 3.5%
2020 — the sulfur content in marine fuel oil decreased from 3.5% to 0.5%
After tests on the test platform, simulation is carried out using Aspen.
A solution is selected in accordance with the characteristics of gas-liquid mixing in different regions
After checking the simulation and test results, the optimal liquid distribution is selected to optimize the amount of water sprayed and reduce energy consumption.
Emission Control Area (Non-SECA):
2010 – sulfur content in marine fuel should not exceed 1%
2015 – Marine fuel must contain <0.1% sulfur
The International Convention for the Prevention of Pollution from Ships is an international convention developed by the International Maritime Organization to prevent and control pollution of the marine environment by discharges of oil and other harmful substances from ships.
International emission control regulations
✓ uses external circulation of sea water
✓ free switching between internal and external loops
✓ uses alkali with internal circulation NaOH / Mg (OH)2