Large-sized dry-process flue gas desulfurizing method with single-tower muiti-bed circulating fluidization

Abstract

The invention provides a smoke desulfurizing method with single tower and multi-bed circular liquid method. It divides the liquid region on the bottom of the tower into two or more small regions, combines all the small sub beds into a single tower structure reaction tower. The invention solves the liquidizing problem, and the liquidizing field organizing problem of multi-phase chemical reactions. At the same time, it reduces the height of the tower, and reduces the cost.

Description

technical field [0001] The invention relates to a large-scale dry flue gas desulfurization method with single-tower and multi-bed circulating fluidization, especially in the field of dry flue gas desulfurization. . It belongs to the technical field of flue gas desulfurization, and particularly relates to a large-scale dry desulfurization system and process in flue gas discharged from various large-scale combustion equipment. Background technique [0002] The control of sulfur dioxide gas pollution has always been the focus of environmental protection in most countries in the world, and the pollutants produced by it are the largest source of pollution that has caused damage to the ecological environment in my country. At present, it has become the top priority of air pollution control in my country. [0003] At present, the treatment of sulfur dioxide generally adopts the wet lime-gypsum method (W-FGD) in foreign countries. Although the above-mentioned method has a good remo...

AI Technical Summary

Problems solved by technology

However, all current fluidized dry desulfurization technologies cannot meet the fluidization requirements of large-scale flue gas desulfurization reactions when the unit capacity is large

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