On December 11, the flue gas desulfurization project for Unit 9 at Hebei Xingtai Power Generation Company successfully completed its 168-hour trial operation. The desulfurization system is now officially in operation. After treatment, the flue gas appears as a light mist against the blue sky, blending with the clouds. Additionally, high-quality gypsum produced through the desulfurization process is being recycled and used as construction material, promoting resource efficiency.
The desulfurization project for Unit 9 is a key energy-saving and emission reduction initiative for the company. It utilizes limestone-gypsum wet desulfurization technology, featuring a one-furnace-one-tower layout. The system achieves 100% flue gas desulfurization with a designed efficiency exceeding 95%, and the system availability is over 98%. During construction, the company closely collaborated with contractors and supervisors to overcome challenges such as a difficult working environment, ultimately completing the project on time and to high standards.
Once fully operational, the desulfurization facilities are expected to reduce sulfur dioxide emissions by 7,500 tons annually. This will significantly improve air quality in Xingtai and throughout Hebei Province, supporting both environmental protection and sustainable economic growth. It also marks a major milestone in the company’s efforts to enhance the local ecological environment and build a clean, green power plant.
Shi Chenghui, the company's deputy general manager, shared some insights: the desulfurization investment for Units 8 and 9 alone reached 195 million yuan. Desulfurization technology accounted for 18% of the total unit investment, and each kilowatt-hour of electricity increased costs by 0.015 yuan. While the financial return is negative, the project represents a significant long-term investment. However, the social and environmental benefits it delivers are immeasurable and align with the company’s broader vision of sustainable development.
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