Wet reactor capable of realizing total sulfur removal of blast furnace gas

Abstract

The invention relates to a wet reactor capable of realizing total sulfur removal of blast furnace gas, which adopts a three-layer injection mode to realize full contact between an absorption liquid and gas, thereby enhancing the material utilization ratio and sulfur removal rate. The desulfurization waste liquid directly returns to the reactor through a circulating water pump to improve the alkaliliquor utilization rate. And a water seal device (31) is arranged below the reactor to prevent gas leakage and ensure safe operation. In the operation process, the spraying water quantity is adjustedaccording to the water seal liquid level; by adjusting the alkali spraying amount according to the H2S concentration at the outlet, adjusting the liquid discharge amount according to the density of the desulfurization waste liquid and directly introducing the blast furnace gas at the outlet of the catalytic hydrolysis tower into the reactor, sulfur-containing substances in the blast furnace gas are removed, the problem that SO2 exceeds the standard is solved from the source, and meanwhile, the problem of corrosion of a gas pipeline is controlled to a certain extent through synergistic removalof HCl.

Description

technical field [0001] The invention relates to a wet process reactor capable of realizing total sulfur removal of blast furnace gas, in particular to a wet reactor capable of realizing the removal of H in blast furnace gas 2 S, SO 2 The wet reactor for the removal of sulfur-containing substances such as sulfur and the coordinated removal of HCl belongs to the pollutant control technology in the field of environmental protection engineering technology. Background technique [0002] Blast furnace gas is the combustible gas with the largest output in iron and steel enterprises, and its statistical output is as high as 70-80 billion cubic meters per month. Existing blast furnace gas purification and follow-up applications mainly use bag-type dust removal to remove particulate matter, and after TRT residual pressure power generation, it is sent to blast furnace hot blast stoves, steel rolling heating furnaces, gas power generation and other user units for use as fuel, but blast...

AI Technical Summary

Problems solved by technology

[0004] Blast furnace gas total sulfur removal is a new technology development direction. At present, there are many individual organic sulfur hydrolysis technologies and dry adsorption removal technologies. There are also related application examples of blast furnace gas dechlorination technology, but there is no blast furnace gas total sulfur removal technology. In addition to technology reports or engineering cases, so blast furnace gas total sulfur removal technology is still at the frontier exploration stage

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