Wet Desulfurization—Limestone/Gypsum Flue Gas Desulfurization
Technical Features:
1. The limestone/gypsum flue gas desulfurization technology is mature, easy to operate, and well-established in terms of management.
2. The desulfurization efficiency is as high as over 95%, and the method exhibits unrestricted applicability to various coal types—suitable for low-, medium-, and high-sulfur coals—and represents currently one of the most efficient desulfurization approaches.
3. Absorbent: Limestone or lime—these desulfurization agents are widely available and inexpensive.
4. The calcium-to-sulfur ratio (Ca/S) of the desulfurizing agent is 1.03, which ensures maximum utilization and minimum consumption of the desulfurizing agent.
5. The desulfurization product is gypsum (calcium sulfate dihydrate). The gypsum has a purity of approximately 90% and can be used as a building material, and it is also easy to process and recycle comprehensively. 6. Water consumption and wastewater volume are related to parameters such as flue gas and process water. Wastewater generated during the process can be treated and reused.
7. The large-scale technology is mature and the units are highly versatile, capable of accommodating a wide range of capacities—from large to small.
8. The system operates stably and exhibits excellent load-following performance.
Keywords:
Wet Desulfurization—Limestone/Gypsum Flue Gas Desulfurization
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