Method and device for flue gas desulfurization and desorption
A desorption and flue gas technology, applied in the field of flue gas desulfurization desorption and flue gas denitration technology, can solve the problems of high desorption efficiency, low energy consumption, low manufacturing cost, etc., to improve desorption efficiency, reduce heat exchange area, and reduce manufacturing effect of cost
Active Publication Date: 2011-08-31
JIANGSU KESHENG CHEM MACHINERY
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[0010] The object of the present invention is to provide a method and device for desulfurization and desorption of flue gas, the method and device have the characteristics of low equipment manufacturing cost, high desorption efficiency and low energy consumption, and solve the technical problems existing in the existing process
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[0020] Such as figure 1 As shown, the flue gas desulfurization and desorption device includes a primary saturated condenser 2, a secondary cooler 3 and a gas-liquid separator 4, and the top of the desorption tower 1 is connected to the top of the vertically installed primary saturated condenser 2 via a desorption gas pipe 5 , the first-stage saturated condenser 2 is connected to the cooling water inlet pipe 6 and the cooling water outlet pipe 7, the bottom of the first-stage saturated condenser 2 is connected to the condensed water return pipe 8, and the condensed water return pipe 8 is connected to the desorption tower 1, and the first-stage saturated condenser 2 is connected to the saturated steam pipe 9, and the saturated steam pipe 9 is connected to the top of the vertically installed secondary cooler 3, and the secondary cooler 3 is connected to the water inlet pipe 10 and the water outlet pipe 11, and the bottom of the secondary cooler 3 is passed through the air-water T...
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Abstract
The invention discloses a method and device for flue gas desulfurization and desorption. A desorption gas coming from the top of a desorption tower (1) enters the tube pass of a primary saturated condenser (2) from the upper part of the primary saturated condenser, and saturated water coming from the bottom of the primary saturated condenser (2) returns to the desorption tower (1); a saturated gas containing sulfur dioxide and water steam, coming from the primary saturated condenser (2), enters the tube pass of a secondary cooler (3) from the upper part of the secondary cooler, and the sulfur dioxide gas and a little condensate water are cooled to the designated temperature of the subsequent working section in the secondary cooler; and the condensate water and the sulfur dioxide gas coming from the bottom of the secondary cooler (3) enter a gas-liquid separator (4), the sulfur dioxide gas coming from the upper part of the gas-liquid separator (4) enters the subsequent working section, and the condensate water coming from the lower part of the gas-liquid separator (4) returns to the desorption tower (1). The device provided by the invention is formed by connecting the primary saturated condenser and the secondary cooler with the gas-liquid separator, the desorption gas passes through the tube pass, and the device has small heat exchange area, low cost, high efficiency and low energy consumption.
Description
technical field [0001] The invention relates to a method and a device for flue gas desulfurization, in particular to a method and a device for flue gas desulfurization and desorption, and is also applicable to flue gas denitrification technology. Background technique [0002] Our country is a big country of thermal power generation, and at the same time our country is also a big country of metallurgy. Both the thermal power generation process and the smelting process produce a large amount of sulfur-containing flue gas. Sulfur-containing flue gas causes huge pollution to the environment. Today, with increasing environmental protection requirements, flue gas desulfurization is an important and necessary environmental protection supporting project for power plants and smelters. [0003] At present, the main methods of flue gas desulfurization are: traditional limestone-gypsum method and absorption method. The absorption method is further divided into organic amine and sodium...
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IPC IPC(8): B01D5/00B01D53/18B01D53/14
Inventor 王武谦王在良张会平许如海
Owner JIANGSU KESHENG CHEM MACHINERY