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Blast furnace gas fine desulfurization device and method

A technology of blast furnace gas and gas refinement, which is applied in combustible gas purification, removal of gas pollutants, combustible gas purification/transformation, etc. Coal gas fine desulfurization technology promotion and project implementation and other issues

Active Publication Date: 2021-07-06
SHANDONG GUOSHUN CONSTR GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, due to the particularity of blast furnace gas component characteristics and working conditions, none of the above technologies can completely solve several key technical problems in the blast furnace gas fine desulfurization process. The existing wet lye spray tower device is only suitable for inorganic The removal of sulfur cannot be used for the removal of organic sulfur in blast furnace gas, and the process produces a large amount of waste water, which produces new pollution sources and cannot achieve environmental protection; the conventional dry-process packed tower reactor has a large overall volume and increases the system footprint Area and construction cost, poor flow field uniformity lead to unbalanced radial cross-section response, large reactor resistance leads to increased resistance of the entire system, seriously affecting the blast furnace gas residual pressure turbine power generation device (TRT); affecting the blast furnace gas fine desulfurization technology Promotion and project implementation

Method used

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  • Blast furnace gas fine desulfurization device and method

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Effect test

Embodiment 1

[0035] In a typical implementation of the present disclosure, such as figure 1 As shown, a blast furnace gas fine desulfurization device is provided.

[0036]The device includes a main cylinder body 5, a lower head of the tower body, an upper head of the tower body, a blast furnace gas inlet, a blast furnace gas outlet 38, a rectifying grid, a catalyst layer, a catalyst layer support assembly, a catalyst laminate assembly, and a blast furnace gas flow channel , maintenance inlet, catalyst discharge outlet pipe, condensate discharge pipe, blast furnace gas vent discharge pipe, spray interface and instrument interface, etc.

[0037] The reaction tower includes a main cylinder body, a skirt cylinder body 2 is docked under the main cylinder body, and the bottom of the skirt cylinder body is fixed on the ground foundation through anchor bolts 1;

[0038] The top of the main cylinder is provided with a tower upper head 18, and the bottom is provided with a tower lower head 36. The ...

Embodiment 2

[0086] In another typical implementation of the present disclosure, such as figure 1 As shown, a blast furnace gas fine desulfurization method is proposed, using the blast furnace gas fine desulfurization device as described in Example 1.

[0087] Include the following steps:

[0088] The first catalyst layer, the second catalyst layer and the third catalyst layer are filled with catalyst, and the blast furnace gas is input into the first inlet and the second inlet respectively;

[0089] After the blast furnace gas input from the first inlet reacts with the first catalyst layer, it is input into the space below the third catalyst layer through the guide channel; after the blast furnace gas input from the second inlet reacts with the second catalyst layer, it is input into the space under the third catalyst layer and Converging with the blast furnace gas input from the first inlet;

[0090] After the gathered blast furnace gas passes through the outer peripheral surface, cata...

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Abstract

The invention provides a blast furnace gas fine desulfurization device and method, and relates to the field of gas desulfurization. The blast furnace gas fine desulfurization device comprises a reaction tower, a first catalyst layer, a second catalyst layer and a third catalyst layer, wherein the first catalyst layer, the second catalyst layer and the third catalyst layer are located in the reaction tower, filled with catalysts and sequentially arranged at intervals from bottom to top. A guide channel penetrates through and isolates the second catalyst layer. A first inlet and a second inlet are formed in the outer side wall of the reaction tower, the first inlet is communicated with the outlet of the reaction tower after sequentially penetrating through the first catalyst layer, the guide channel and the third catalyst layer, and the second inlet is communicated with the outlet of the reaction tower after sequentially penetrating through the second catalyst layer and the third catalyst layer. Blast furnace gas is shunted and enters different catalyst layer structures, the absorption load of a single catalyst layer structure is reduced, the gas desulfurization efficiency is improved, the gas is converged and jointly subjected to fine desulfurization after primary reaction, good flow field uniform distribution performance is ensured, and the resistance of the reactor is reduced.

Description

technical field [0001] The disclosure relates to the field of coal gas desulfurization, in particular to a blast furnace gas fine desulfurization device and method. Background technique [0002] The statements in this section merely provide background information related to the present disclosure and may not necessarily constitute prior art. [0003] Blast furnace gas is the most combustible gas produced by iron and steel enterprises. Blast furnace gas is the key to energy saving and environmental protection emission of iron and steel enterprises. Sulfur in blast furnace gas is mainly divided into organic sulfur and inorganic sulfur. The main components of organic sulfur are carbonyl sulfide, carbon disulfide, etc.; the main component of inorganic sulfur is hydrogen sulfide. The total sulfur content of blast furnace gas is 100-200mg / Nm 3 Among them, organic sulfur is mainly carbonyl sulfide (COS), accounting for about 80%; inorganic sulfur is mainly hydrogen sulfide (H2S),...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10K1/00C10K1/34
CPCC10K1/004C10K1/34
Inventor 孟昭勤杨凤岭吕扬管闯吕斌王国威尹鹏许治丹吕和武孙德山仇洪波吕和兴类振刘文龙
Owner SHANDONG GUOSHUN CONSTR GRP