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Fine desulfurization process for blast furnace gas

A desulfurization process, blast furnace gas technology, applied in gas dust removal, petroleum industry, combustible gas purification, etc., can solve the problems of no successful cases and large pressure loss, and achieve the effect of reducing resistance loss and large operating cost

Inactive Publication Date: 2020-01-03
BEIJING BEIKE ENVIRONMENTAL ENG CO LTD
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  • Abstract
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Problems solved by technology

However, the pressure loss caused by this method is relatively large, which will reduce a large amount of TRT's power generation every year, and there is no successful case so far.

Method used

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  • Fine desulfurization process for blast furnace gas

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Embodiment Construction

[0017] In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following will describe in detail with reference to the drawings and specific embodiments.

[0018] The invention provides a blast furnace gas fine desulfurization process, such as figure 1 As shown, in this process, the blast furnace gas enters the organic sulfur hydrolysis system after bag dust removal, and the hydrolyzed gas enters the residual pressure turbine power generation device, and then enters the wet alkali washing desulfurization system to complete the fine desulfurization of blast furnace gas.

[0019] Wherein, the organosulfur hydrolysis system includes a hydrolysis reactor and a sonic soot blowing system, and the sonic soot blowing system is arranged on the upper part of the hydrolysis reactor.

[0020] The wet alkali elution desulfurization system includes an absorption tower, a circulating water tank, a circulating water pump, ...

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Abstract

The invention provides a fine desulfurization process for blast furnace gas, and belongs to the technical field of gas desulfurization. The process specifically comprises the following steps that blast furnace gas enters an organic sulfur hydrolysis system after being subjected to bag dust removal; and the hydrolyzed gas enters a top pressure recovery turbine power generation device and then enters a wet alkali washing desulfurization system. The organic sulfur hydrolysis system comprises a hydrolysis reactor and an acoustic wave soot blowing system, and the wet alkali washing desulfurizationsystem comprises an absorption tower, a circulating water tank, a circulating water pump, an alkali liquor storage tank, an alkali liquor pump, a process water tank and a process water pump. The process can effectively reduce resistance loss caused by the hydrolysis system and save large operation cost for enterprises.

Description

technical field [0001] The invention relates to the technical field of gas desulfurization, in particular to a fine desulfurization process of blast furnace gas. Background technique [0002] At present, the dust removal of blast furnace gas adopts all-dry dust removal, which is affected by the properties of blast furnace charge and sinter. As the temperature and pressure drop, a large amount of acidic condensed water will precipitate out of the blast furnace gas after residual pressure power generation, which will easily accelerate the corrosion of subsequent process pipelines, and gas leakage will cause users to stop production for maintenance. At the same time, after analyzing the sulfide components of blast furnace gas, the total sulfur content in blast furnace gas is generally 60-100 mg / Nm3, of which organic sulfur accounts for 3 / 4 and inorganic sulfur accounts for 1 / 4. [0003] Due to the late understanding of carbonyl sulfide in blast furnace gas, its composition, co...

Claims

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Application Information

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IPC IPC(8): C10K1/00C10K1/02C10K1/12C10K1/34
CPCC10K1/002C10K1/004C10K1/024C10K1/12C10K1/34Y02P20/129
Inventor 赵荣志冷廷双李璟丁林张秋林
Owner BEIJING BEIKE ENVIRONMENTAL ENG CO LTD
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