Organic amine wet flue gas desulphurization and desorption system with high-efficiency and low-energy consumption
A wet flue gas desulfurization, organic amine technology, applied in separation methods, chemical instruments and methods, dispersed particle separation and other directions, can solve the problems of high energy consumption, low desorption efficiency, large steam consumption, etc. The effect of reducing sulfur dioxide content and reducing the amount of heating steam
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Example Embodiment
[0024] Example 1
[0025] See figure 1 The structure of this embodiment is described as follows:
[0026] An organic amine wet flue gas desulfurization and desorption system with high efficiency and low energy consumption includes a desorption tower 1, a lean and rich amine liquid heat exchanger 3, a rich amine heater 4, a desorption tower 8 and an amine liquid purification system 9, in the desorption tower 1 A condensing cooler 6 and a separator are connected in series with the desorption tower 8, and a reboiler 2 is installed in the rough section of the desorption tower 1.
[0027] The separator includes a primary separator 5 and a secondary separator 7; the condensation cooler 6 is located between the primary separator 5 and the secondary separator 7; the primary separator 5 is connected to the desorption tower 1, and the primary separator 5 A rich amine heater 4 is provided between the desorption tower 1 and the desorption tower 1; the secondary separator 7 communicates with the...
Example Embodiment
[0032] Example 2
[0033] The structure of this embodiment is the same as that of Embodiment 1.
[0034] The working principle of this embodiment is described as follows:
[0035] The flow rate from the absorption tower is 220m 3 / h The rich amine solution with a temperature of 40.7°C, after the heat exchange between the lean rich amine solution heat exchanger 3 and the lean amine solution, the temperature rises by 73.6°C, and then is transported to the rich amine heater 4 to raise the temperature to 99.1°C for a second time, and then enter SO 2 Desorption tower; containing SO 2 The high-temperature saturated steam has a temperature of 111°C, is cooled and condensed in the rich amine heater, and the temperature drops to 100°C, and enters the first-stage separator 5 after heat exchange. The liquid is reused and sent to the liquid distributor in the rectification section, where the packing layer and SO in the rectification section 2 Steam contact. The kettle temperature was 113°C. ...
Example Embodiment
[0036] Example 3
[0037] The structure of this embodiment is the same as that of Embodiment 1.
[0038] The working principle of this embodiment is described as follows:
[0039] The flow rate from the absorption tower is 308m 3 / h The rich amine liquid with a temperature of 42°C, after the heat exchange between the lean rich amine liquid heat exchanger 3 and the lean amine liquid, the temperature rises by 71.4°C, and then is transported to the rich amine heater 4 to raise the temperature to 98.2°C for a second time, and then enter SO 2 Desorption tower; containing SO 2 The high-temperature saturated steam has a temperature of 109°C, is cooled and condensed in the rich amine heater, and the temperature drops to 100°C. After heat exchange, it enters the first-stage separator 5. The liquid is reused and sent to the liquid distributor in the rectification section, where the packing layer and SO in the rectification section 2 Steam contact. The temperature of the tower kettle is 112...
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