Method and device for preparing methionine and recovering by-product-carbon dioxide
A technology of carbon dioxide and methionine, applied in the direction of electrolytic organic production, electrolytic process, electrolytic components, etc., can solve the problems of unfavorable clean industrial production, incomplete realization of zero emission, loss of carbon dioxide emission, etc.
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Embodiment 1
[0061] Bipolar membrane device with two-compartment structure, such as figure 2 As shown, the device includes a bipolar membrane electrodialysis system G, a lye tank A, a liquid tank B, a distillate tank C, a membrane distillation device D, an absorption tank E, a gas-liquid separator F, and a polar liquid tank H ,
[0062] The bipolar membrane electrodialysis system G is composed of a bipolar membrane electrodialysis device, and the bipolar membrane electrodialysis device is composed of polar liquid chambers on both sides and an electrodialysis compartment sandwiched between the polar liquid chambers on both sides The electrodialysis compartments are respectively a cathode compartment and an anode compartment, the electrodialysis compartment is composed of 5 groups of membrane units arranged in series, the membrane unit is a two-compartment structure, and the two-compartment structure is a bipolar membrane and The cation exchange membranes are arranged alternately to form an a...
Embodiment 2
[0076] In this example, the bipolar membrane device has a three-compartment structure, such as figure 1 As shown, the device includes a bipolar membrane electrodialysis system G, a lye tank A, a liquid tank B, an acid tank I, a distillate tank C, a membrane distillation device D, an absorption tank E, and a gas-liquid separator F , Polar liquid tank H,
[0077] The bipolar membrane electrodialysis system G is composed of a bipolar membrane electrodialysis device, and the bipolar membrane electrodialysis device is composed of polar liquid chambers on both sides and an electrodialysis compartment sandwiched between the polar liquid chambers on both sides The polar fluid compartments are respectively a cathode compartment and an anode compartment, the electrodialysis compartment is composed of 5 groups of membrane units arranged in series, the membrane unit is a three-compartment structure, and the three-compartment structure is a bipolar membrane, The cation exchange membrane and a...
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