This system uses a calcium-based granular desulfurizer to absorb sulfur dioxide from flue gas, producing calcium sulfate. The system is implemented using a quasi-intermittent moving bed system. Alkali (primarily composed of Ca(OH)2) and catalyst granules are placed in a desulfurization reactor. As the flue gas flows through, the sulfur dioxide is oxidized to sulfur trioxide, which then solidifies into calcium sulfate (gypsum) solids. The entire process uses no water and produces no wastewater. Furthermore, there is no need for desulfurization, making it simple to operate. It is also not very sensitive to flue gas temperature and is suitable for almost all flue gas conditions.
Fixed-bed reactors of varying structures and sizes can be configured to meet the needs of limited on-site space.
Simultaneously removes pollutants such as SO2 and dust.
Reduces nitrogen oxide emissions to a certain extent; the desulfurization tower itself reserves space for future denitrification agent loading, allowing existing equipment to reduce nitrogen oxide emissions.
Minimal resistance loss; low fan power and energy consumption.
Desulfurization agent loading and replacement can be flexibly adjusted to meet the needs of on-site production organization.
Virtually no maintenance is required.
This system offers advantages such as simple operation, no wastewater generation, minimal equipment corrosion, and low temperature drop. Its primary applications include: flue gas treatment for blast furnace hot blast stoves and rolling mill reheating furnaces in the steel industry; as well as flue gas purification for gas-fired boilers and coke ovens in other industrial sectors, ensuring compliance with environmental protection requirements.
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Hanshan Industrial Park, Lintou Town, Hanshan County, Ma'anshan City, Anhui Province, China.
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