Blast furnace gas adsorption desulfurization method and device

A blast furnace gas, adsorption desulfurization technology, applied in the removal of gas pollutants, gas dust removal, combustible gas purification, etc., can solve the problems of high investment cost, unstable desulfurization effect, easy catalyst failure, etc., to simplify the purification system , save investment, simple process effect

Pending Publication Date: 2020-06-16
ANHUI WEIDA ENVIRONMENTAL PROTECTION TECH
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Problems solved by technology

Solve the problems that the catalyst is prone to failure, the input cost is high, and the desulfurization effect is unstable when using catalytic hydrolysis or catalytic hydrogenolysis to remove organic sulfur process routes to purify blast furnace gas

Method used

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  • Blast furnace gas adsorption desulfurization method and device

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Embodiment Construction

[0051] refer to figure 1 , a blast furnace gas adsorption desulfurization device system of the present invention, the blast furnace gas is discharged from the top of the blast furnace 11, enters the gravity dust collector 12 to remove large particle dust, and after the gravity dust collector 12 is discharged, enters the dry bag filter 13 to remove smaller particles After the dust is discharged, it enters the TRT residual pressure power generation device 14 and the pressure regulating valve group 31, and forms low-pressure blast furnace gas after the residual pressure is utilized. The low-pressure blast furnace gas enters the adsorption fine desulfurization working tower group I19 for adsorption and fine desulfurization to form clean blast furnace gas. To gas users in the plant area.

[0052] According to the above steps, when the sulfur capacity of the adsorbent in the working tower group I19 is saturated, the working tower group I19 enters the thermal desorption state, and th...

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Abstract

The invention relates to a blast furnace gas adsorption desulfurization method and device. The device comprises a gravity dust collector, a dry bag-type dust collector, a TRT excess pressure power generation device, a pressure regulating valve bank and an adsorption fine desulfurization tower, wherein a gas uniform distributor, a heat exchanger, a conveying fan, valve banks and connecting pipelines are arranged in the adsorption fine desulfurization tower. The problems that when blast furnace gas is purified through a catalytic hydrolysis or catalytic hydrogenolysis organic sulfur process route at present, a catalyst is prone to losing efficacy, the input cost is high, and the sulfide removal effect is unstable are solved.

Description

technical field [0001] The invention relates to a method and device for adsorption and desulfurization of blast furnace gas, in particular to a method and device for removing COS and CS from blast furnace gas. 2 and H 2 S method and apparatus. Background technique [0002] At present, blast furnace gas is a combustible by-product of blast furnace ironmaking, which can be transported to various gas users in the plant area. The more conventional gas users are blast furnace hot blast stoves, sintering, and gas-fired boilers. The main components of blast furnace gas are CO (20-25%), N 2 (50-55%), and CO 2 (23-25%). At the same time, a small amount of sulfide in blast furnace gas is about 20-50mg / Nm 3 Inorganic sulfide-hydrogen sulfide H 2 S, and the content is about 140-170mg / Nm 3 organic sulfide-carbonyl sulfide COS, and other trace inorganic sulfur (SO 2 ) and organic sulfur (CS 2 ) and so on. About 200mg / Nm 3 After the total sulfur content is sent to the gas user f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10K1/02C10K1/32C10K1/00
CPCC10K1/004C10K1/02C10K1/024C10K1/32
Inventor 王一臻黄乃金吴昊梅文娟吴天晴徐兵解彬
Owner ANHUI WEIDA ENVIRONMENTAL PROTECTION TECH
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