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Energy-efficient comprehensive desulfurization and purification system and method for active coke of different flue gases

A high-efficiency energy-saving, purification system technology, applied in the direction of chemical instruments and methods, separation methods, dispersed particle separation, etc., can solve the problems of complex process flow, increased investment and operating costs, etc., to simplify the process, reduce the pretreatment process, improve The effect of utilization

Active Publication Date: 2015-04-08
SHANGHAI CLEAR ENVIRONMENTAL PROTECTION SCI & TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] At present, in the flue gas desulfurization process of industrial furnaces, due to different production processes, flue gases with different temperatures and characteristics in the same enterprise need to be treated. For example, non-ferrous smelting has both industrial furnace flue gas and environmental gas collection. The flue gas, as well as the flue gas from the acid plant, are treated separately. Some need to be cooled, and some need to use steam humidification and anti-corrosion treatment. The process is relatively complicated, which increases investment and operating costs.

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  • Energy-efficient comprehensive desulfurization and purification system and method for active coke of different flue gases

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Embodiment 1

[0035] figure 1 It is a schematic structural diagram of the high-efficiency, energy-saving and comprehensive desulfurization and purification system of activated coke for different flue gases of the present invention. Such as figure 1 As shown in this example, a high-efficiency and energy-saving activated coke comprehensive desulfurization purification system for different flue gases proposed in this embodiment includes the first adsorption desulfurization section 100, the second adsorption desulfurization section 200, the active coke regeneration section 300 and the active coke conveying equipment .

[0036]The first adsorption desulfurization section 100 includes a first desulfurization adsorption tower 110 for different flue gas desulfurization and purification, a first desulfurization flue gas pipeline 120 for introducing different flue gases, and a first tower top bin for introducing activated coke 130 , the first desulfurization flue gas pipeline 120 is conductively co...

Embodiment 2

[0056] This embodiment is a specific application of the present invention, which is the case of simultaneously treating three different flue gases discharged from three different working sections.

[0057] The flue gas volume of the first section is 280000Nm 3 / h,SO 2 The concentration is 2400mg / Nm 3 , the flue gas temperature is 70°C. The flue gas volume of the second section is 110000Nm 3 / h, SO 2 The concentration is 1500mg / Nm 3 , the flue gas temperature is 75°C. The first section and the second section are mixed into the first desulfurization flue gas pipeline, and the flue gas volume is 390000Nm 3 / h,SO 2 The concentration is 2146mg / Nm 3 , the flue gas temperature is 71.4°C, the first desulfurization flue gas pipeline enters the first desulfurization adsorption tower through the damper for SO 2 Adsorption, the purified flue gas enters the first purified flue gas pipeline, SO 2 The concentration is 120mg / Nm 3 . The flue gas volume of the third section is 20000...

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Abstract

The invention discloses an energy-efficient comprehensive desulfurization and purification system and method for active coke of different flue gases. The purification system comprises a first adsorption desulfurization section, a second adsorption desulfurization section, an active coke regeneration section and active coke conveying equipment. According to the purification method, the purification system is adopted to carry out desulfurization and purification on different flue gases, and the purification method comprises a smoke desulfurization step and active coke regenerating and circulating steps, which are synchronously carried out. According to the energy-efficient comprehensive desulfurization and purification system and method for active coke of different flue gases disclosed by the invention, the difference of the flue gas conditions of different flue gas components and the like is fully utilized; the flue gas suitable for the processing conditions is formed after mixing; the pretreatment procedure of the flue gas in independent treatment is reduced; the flow is simplified; energy conservation and consumption reduction are achieved; the characteristics of different flue gases can be fully utilized; comprehensive treatment is carried out; the operation cost is reduced; energy conservation and consumption reduction are achieved; efficient purification of pollutants is also achieved.

Description

technical field [0001] The invention relates to the technical field of flue gas desulfurization, in particular to an active coke high-efficiency, energy-saving and comprehensive desulfurization purification system and method for different flue gases. Background technique [0002] "National Environmental Protection "Twelfth Five-Year" Plan" (Guo Fa [2011] No. 42) proposes to "increase the emission reduction of sulfur dioxide and nitrogen oxides. The task is still relatively arduous. [0003] Activated coke dry desulfurization technology is a dry resource desulfurization technology for flue gas purification based on the principle of physical-chemical adsorption, and desulfurization through coke adsorption 2 , adsorbed SO 2 The final active coke is regenerated by heating, and the active coke is recycled to obtain SO with a concentration of 20-30%. 2 Gas, using mature chemical technology, can produce a variety of sulfur-containing industrial products, such as sulfuric acid, a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D53/02B01D53/08
Inventor 翟尚鹏何慕春黄丽娜傅月梅刘强翁淑容
Owner SHANGHAI CLEAR ENVIRONMENTAL PROTECTION SCI & TECH