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Catalyst stuffing and stuffing bed for seawater desulfurization process

A desulfurization process and catalyst technology, applied in the direction of physical/chemical process catalysts, chemical instruments and methods, chemical/physical processes, etc., can solve problems such as lack, large pressure drop, and low pressure drop

Inactive Publication Date: 2012-12-12
SHANGHAI HUOLIN ENG PLASTICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there are many structural shapes of packing, but the separation efficiency is low, the pressure drop is large, and the energy consumption is high.
[0004] At present, there is a lack of a catalyst packing in the field, which has a good contact surface, and has a low pressure drop, and also has the effect of catalytic oxidation, which can absorb SO in seawater 2 Catalytic oxidation to stable sulfate ion

Method used

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  • Catalyst stuffing and stuffing bed for seawater desulfurization process
  • Catalyst stuffing and stuffing bed for seawater desulfurization process
  • Catalyst stuffing and stuffing bed for seawater desulfurization process

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Embodiment 1

[0086] Such as Figure 1 to Figure 6 As shown, the catalyst packing of the seawater desulfurization process is composed of a three-layer honeycomb ring structure, including:

[0087] (a) intermediate layer honeycomb ring 100; described intermediate layer honeycomb ring 100 comprises:

[0088] - circumscribed ring 4;

[0089] - Nineteen honeycomb rings 1 are arranged on the outer ring 4, and a central honeycomb ring closely surrounding the center is evenly distributed by eighteen honeycomb rings;

[0090] (b) The upper surface honeycomb ring 200 and the lower surface honeycomb ring 300; the upper surface honeycomb ring 200 and the lower surface honeycomb ring 300 are respectively provided with twelve honeycomb rings, wherein,

[0091] The centers of the upper surface honeycomb ring 200 and the lower surface honeycomb ring 300 are on the same axis as the center of the middle layer honeycomb ring 100;

[0092] And the upper surface honeycomb ring 200 and the lower surface hone...

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Abstract

The invention provides a catalyst stuffing and stuffing bed for a seawater desulfurization process. The surface of the catalyst stuffing is coated with a catalyst, and the catalyst stuffing is composed of a three-layered cellular ring structure which comprises (a) a middle cellular ring (100), (b) an upper cellular ring (200) and a lower cellular ring (300) as well as (c) a supporting structure (400) connected with the upper cellular ring (200), the middle cellular ring (100) and the lower cellular ring (300). The catalyst stuffing has a good contacting surface, a relatively low pressure dropand an effect of catalytic oxidation, and can catalytically oxidize the SO2 absorbed in seawater into stable sulfate ions. Sulfite ions are further stabilized into the sulfate ions on the basis of improving the desulfurization efficiency; the oxidation quantity in the later stage of the seawater desulfurization process is reduced, so that an aeration basin and the aeration quantity can be reduced.

Description

technical field [0001] The invention relates to a catalyst packing and a packing bed thereof, in particular to a catalyst packing and a packing bed of the seawater desulfurization process. Background technique [0002] Seawater desulfurization uses natural seawater as an absorbent to remove SO from flue gas 2 The advanced wet desulfurization technology is an important field for the direct utilization of seawater. The process principle of seawater desulfurization is: SO in flue gas 2 After being absorbed by seawater in the absorption tower, sulfite and H + , (SO 2 +H 2 O→SO 3 2- +2H + ), the acidic seawater from the absorption tower contains a large amount of unstable sulfurous acid, which may generate SO under acidic conditions 2 , resulting in SO 2 Re-overflow. Therefore, it needs to be mixed with a large amount of fresh seawater in the front of the aeration tank to increase the pH value, prevent reversible reactions, and achieve the best working conditions requir...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J35/04B01J19/32B01D53/50B01D53/86B01D53/78
Inventor 高梅杉王小明王世和郭明春
Owner SHANGHAI HUOLIN ENG PLASTICS
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