Alstom has signed a contract with Baoshan Iron & Steel Co. Ltd. (BaoSteel) in Shanghai, to upgrade the electrostatic precipitators (ESP) of units 1 and 2 of its captive power plant.
The contract scope includes design, supply of materials and equipment as well as technical advisory services during installation and commissioning of the ESP upgrade. The contract also includes supply of Switched Integrated Rectifiers (SIR), Alstom’s high-frequency power supply, which optimizes the performance of the ESPs.
The ESP equipments in BaoSteel were originally supplied by MHI Lurgi and have been in service since 1980. The upgrade will reduce particulate emissions, currently greater than 400 mg/Nm3 down to a level of 100 mg/Nm3, thus allowing BaoSteel to conform to China’s environmental requirements.
ESPs have been used widely to control particle emissions. ESPs are often the most cost-effective solution due to high removal efficiencies in combination with robustness and low maintenance cost. A large majority of industrial and thermal power units in China are equipped with ESPs.
More stringent emission requirements and more challenging conditions due to fuel switching and other process changes result in a need for improved collection efficiency and ESP upgrade. As the world leader in air quality control systems with experience spanning more than 1000 ESP upgrade projects worldwide, Alstom is well positioned to serve this growing sector in China.
From PEI Magazine
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