Novel efficient desulfurizing agent and preparation method thereof

A desulfurizing agent and high-efficiency technology, applied in the field of new high-efficiency desulfurizing agent and its preparation, can solve problems such as difficulty in meeting environmental protection requirements, and achieve the effects of low power consumption, high desulfurization efficiency, and high desulfurization accuracy

Inactive Publication Date: 2020-03-20
山东庚辰环保新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

With the improvement of environmental protection requirements, some areas have issued new air pollutant emission standards (Tianjin DB12 / 810-2018 thermal power plant air pollutant emission standards), in which the emission limit for sulfur dioxide is 10mg / m 3 , so the existing desulfurization methods have been difficult to meet environmental protection requirements

Method used

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  • Novel efficient desulfurizing agent and preparation method thereof
  • Novel efficient desulfurizing agent and preparation method thereof
  • Novel efficient desulfurizing agent and preparation method thereof

Examples

Experimental program
Comparison scheme
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Embodiment 1

[0046] This example provides a preparation method of sawdust: firstly, pickled sawdust once with hydrochloric acid for 30 minutes to obtain pickled sawdust; then washed the pickled sawdust twice with water for each washing time for 40 minutes, and dried at 60° C. for 90 minutes to obtain the sawdust.

[0047] This embodiment provides a new type of high-efficiency desulfurizer, the raw material components include:

[0048] 10 parts by weight of magnesium oxide, 5 parts by weight of activated carbon, 10 parts by weight of red mud, 20 parts by weight of water glass, and 1 part by weight of wood chips.

[0049] The preparation method of described novel and efficient desulfurizer comprises the following steps:

[0050] (1) pulverizing each raw material except water glass to a particle diameter of 100 mesh respectively to obtain each raw material particle;

[0051] (2) mixing the raw material particles uniformly to obtain a mixed raw material;

[0052] (3) adding water and the wa...

Embodiment 2

[0056] This embodiment provides a preparation method of wood chips: first, the chipped wood chips are washed twice with sulfuric acid, and the pickling time is 10 minutes each time to obtain the pickled saw chips; then the pickled saw chips are washed with water four times, each time Washing time is 30 minutes, and drying at 70° C. for 60 minutes to obtain the sawdust.

[0057] This embodiment provides a new type of high-efficiency desulfurizer, the raw material components include:

[0058] 50 parts by weight of magnesium hydroxide, 30 parts by weight of activated carbon, 50 parts by weight of red mud, 50 parts by weight of water glass, and 5 parts by weight of wood chips.

[0059] The preparation method of described novel and efficient desulfurizer comprises the following steps:

[0060] (1) pulverizing each raw material except water glass to a particle diameter of 200 mesh respectively to obtain each raw material particle;

[0061] (2) mixing the raw material particles uni...

Embodiment 3

[0066] This embodiment provides a preparation method of sawdust: firstly, pickled sawdust is washed twice with hydrochloric acid, and the pickling time is 20 minutes each time to obtain pickled sawdust; then the pickled sawdust is washed with water three times, each time Washing with water for 35 minutes, drying at 65° C. for 75 minutes to obtain the sawdust.

[0067] This embodiment provides a new type of high-efficiency desulfurizer, the raw material components include:

[0068] 20 parts by weight of sodium oxide, 10 parts by weight of activated carbon, 20 parts by weight of red mud, 30 parts by weight of water glass, and 2 parts by weight of wood chips.

[0069] The preparation method of described novel and efficient desulfurizer comprises the following steps:

[0070] (1) pulverizing each raw material except water glass to a particle diameter of 100 mesh respectively to obtain each raw material particle;

[0071] (2) mixing the raw material particles uniformly to obtain ...

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Abstract

The invention relates to a novel high-efficiency desulfurizing agent and a preparation method thereof. The novel high-efficiency desulfurizing agent mainly comprises the following raw materials: Mg, Ca or Na oxide and / or hydroxide, activated carbon, red mud, a binder and a pore forming agent, and the novel high-efficiency desulfurizing agent is prepared from the raw materials through a special process. The novel high-efficiency desulfurizing agent disclosed by the invention can overcome the defects of an existing desulfurizing process, has the advantages of high desulfurization efficiency, high desulfurization precision, low power consumption, low investment and the like, can effectively reduce the desulfurization cost and reduce the economic pressure for desulfurization of enterprises, can perform deep desulfurization, can remove SO2 to be less than or equal to 1mg / m < 3 >, and obviously enhance the desulfurization efficiency; the novel high-efficiency desulfurizing agent can be usedfor secondary fine desulfurization of power plant flue gas, can also be used for tail gas SO2 treatment in the industries of fine chemical engineering, pharmacy, metal smelting and the like, and has huge market value.

Description

technical field [0001] The invention belongs to the technical field of solid waste treatment and flue gas purification, and specifically relates to a novel high-efficiency desulfurizer and a preparation method thereof. Background technique [0002] At present, the common desulfurization process is wet or semi-dry desulfurization process based on calcium-based desulfurizer. Dry desulfurization, also known as dry flue gas desulfurization, refers to the application of powdery or granular absorbents, adsorbents or catalysts to remove sulfide-containing gases from flue gas. It has the advantages of simple process, no sewage and acid treatment problems, low energy consumption, especially the high temperature of flue gas after purification, which is conducive to the diffusion of chimney exhaust, and will not produce "white smoke" phenomenon, etc., but there is desulfurization The shortcomings of low efficiency, low sulfur capacity, low mechanical strength, high cost, huge equipmen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/75B01D53/50B01D53/81B01D53/86
CPCB01D53/75B01D53/81B01D53/8609B01D2255/702B01D2258/0283
Inventor 黄镕闫毅刘晓宇黄宇琪
Owner 山东庚辰环保新材料有限公司
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