Acid gas removal control device, acid gas removal control method, and acid gas removal device
A technology for acid gas and control devices, which is applied in the field of acid gas removal control devices, and can solve problems such as the decline in acid gas recovery performance
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no. 1 Embodiment approach
[0036] figure 1 It is a schematic diagram which shows the structure of the acid gas removal apparatus of 1st Embodiment. figure 1 The acid gas removal device, for example, recovers CO in the gas to be treated 2 CO 2 Recovery device.
[0037] figure 1 The acid gas removal device has an absorption tower 1, a heat exchanger 2, a regeneration tower 3, a reboiler 4, a cooler 5, a circulation pump 6, a cooler 7, a gas-liquid separator 8, a thermometer 11, a make-up liquid tank 12, Supply liquid pump 13, valve 14 and control device 15. The absorption tower 1 is equipped with the gas-liquid contact part 1a and the gas scrubbing part 1b. The regeneration tower 3 is provided with a gas-liquid contact part 3a. The control device 15 includes a reception unit 15a, a storage unit 15b, and a control unit 15c. The absorption tower 1 is an example of an absorption section, and the regeneration tower 3 is an example of a regeneration section. The thermometer 11 is an example of a measur...
no. 2 Embodiment approach
[0095] image 3 It is a schematic diagram which shows the structure of the acid gas removal apparatus of 2nd Embodiment.
[0096] image 3 The acid gas removal unit has the same figure 1 The acid gas removal device has the same structure, but instead of the supply liquid tank 12, the supply liquid pump 13 and the valve 14, a valve 16, an electrodialysis device 17, and an acid recovery liquid supply unit 18 are provided. The electrodialysis device 17 is provided with at least one absorption liquid purification chamber 17a, an acid recovery chamber 17b, and an anion exchange membrane 17c each. The valve 16, the electrodialysis device 17, and the acid recovery liquid supply unit 18 are examples of an acid component removal unit, and the valve 16 is an example of a second valve.
[0097] The valve 16, the electrodialysis device 17, and the acid recovery solution supply unit 18 may be replaced with other mechanisms. Examples of such mechanisms are distillation, vacuum distillat...
no. 3 Embodiment approach
[0135] Figure 5 It is a schematic diagram which shows the structure of the acid gas removal apparatus of 3rd Embodiment.
[0136] Figure 5 The acid gas removal device has an absorption tower 1, a heat exchanger 2, a regeneration tower 3, a reboiler 4, a cooler 5, a circulation pump 6, a cooler 7, a gas-liquid separator 8, a thermometer 11, a make-up liquid tank 12, A supply liquid pump 13 , a valve 14 , a control device 15 , a valve 16 , an electrodialysis device 17 and an acid recovery liquid supply unit 18 . in this way, Figure 5 The acid gas removal device has figure 1 The components shown and image 3 Both sides of the constituent elements shown.
[0137] Hereinafter, the operation of the control device 15 of the present embodiment will be described.
[0138] Similar to the first and second embodiments, the control device 15 controls various operations of the acid gas removal device. The control device 15 monitors a signal from the thermometer 11, or controls ope...
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