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Double-circulation ammonia process type smoke decarbonization device

A double-cycle, decarbonization technology, applied in separation methods, chemical instruments and methods, and dispersed particle separation, etc., can solve the problems of device blockage and low absorption efficiency, and achieve high absorption efficiency, not easy to block, and good permeability Effect

Inactive Publication Date: 2013-04-03
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention solves the problem that the existing device for absorbing carbon dioxide in flue gas discharged from a power plant by ammonia method has low absorption efficiency and the device is prone to clogging, and further provides a double-cycle flue gas ammonia method decarburization device

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  • Double-circulation ammonia process type smoke decarbonization device

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specific Embodiment approach 1

[0009] Specific implementation mode one: combine figure 1 To illustrate, a double-cycle flue gas ammonia decarbonization device in this embodiment includes an absorption tower 1, a separator 2, a dryer 3, a liquid processor 4, a first circulation pump 5, a second circulation pump 6, and a third circulation pump. Pump 7 and the fourth circulation pump 8, the absorption tower 1 is provided with double water film 1-1, ammonia water filter layer 1-2, liquid collector 1-3 and ammonia water nozzle 1-4 sequentially from top to bottom, the absorption tower The bottom of 1 is provided with a sedimentation tank 1-5, the side wall of the lower end of the absorption tower 1 is provided with a flue gas inlet 1-6, the upper end of the absorption tower 1 is provided with a flue gas outlet 1-7, and the inlet of the first circulation pump 5 is connected to the The lower side wall of the absorption tower 1 is connected, the outlet of the first circulation pump 5 is connected with the ammonia wa...

specific Embodiment approach 2

[0010] Specific implementation mode two: combination figure 1 To illustrate, the liquid handler 4 of this embodiment is provided with an ammonia water addition pipe 4-1 on the side wall of the lower end. With such an arrangement, ammonia water can be added to the liquid processor 4, which solves the problem of low absorption efficiency of carbon dioxide absorbed by spraying, and makes the effect of absorbing carbon dioxide in flue gas better. Other components and connections are the same as those in the first embodiment.

[0011] Working principle: the flue gas enters the absorption tower 1 from the flue gas inlet 1-6, and the ammonia water nozzle 1-4 sprays ammonia water downward, and the ammonia water reacts with part of the carbon dioxide in the flue gas to form a mixture of various substances, and the mixture falls into the sedimentation tank 1 In -5, the mixture enters the separator 2 under the action of the second circulation pump 6, and the separator 2 separates the so...

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Abstract

The invention provides a double-circulation ammonia process type smoke decarbonization device, and relates to a smoke decarbonization device, aiming at solving the problems that the conventional device for absorbing carbon oxide in smoke discharged by a power plant through an ammonia process has the defects of low absorption efficiency and easiness of blocking. An inlet of a first circulation pump is communicated with the lateral wall of the lower end of an absorption tower; an outlet of the first circulation pump is communicated with an ammonia water nozzle through a pipeline; an inlet of a second circulation pump is communicated with the lateral wall of the lower end of the absorption tower; an outlet of the second circulation pump is sequentially communicated with a separator and a drier through a pipeline; the upper end of the separator is communicated with the lateral wall of the lower end of the absorption tower through the pipeline; the lower end of a liquid collector is communicated with the lateral wall of the upper end of a liquid processor outside the absorption tower through a fourth circulation pump arranged outside the absorption tower; and an inlet of a third circulation pump is communicated and connected with the lateral wall of the lower end of the liquid processor through the pipeline. The double-circulation ammonia process type smoke decarbonization device provided by the invention is used for absorbing the carbon oxide in the smoke discharged by the power plant.

Description

technical field [0001] The invention relates to a flue gas decarbonization device. Background technique [0002] In recent years, the greenhouse effect has gradually become one of the most serious problems faced by mankind, and carbon dioxide is one of the most important factors causing the greenhouse effect. In human activities, the vast majority of carbon dioxide is emitted from power plants. It is easy to know by calculation that a thermal power plant can emit two tons of carbon dioxide per hour. Therefore, it is extremely urgent to reduce the emission of carbon dioxide in the flue gas of power plants. . [0003] At present, carbon dioxide absorption methods are mainly divided into two categories: physical and chemical. Physical methods generally include adsorption separation, pressure swing adsorption, membrane permeation, and solvent absorption, while chemical methods include chemical absorption. However, these methods inevitably have problems such as low absorption ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/78B01D53/96B01D53/62
Inventor 于瑞洋王剑贾良晨杜谦高建民
Owner HARBIN INST OF TECH