Combined technique of separating and recycling VOCS (volatile organic compounds) from industrial waste gas by adsorption-desorption-rectification-pervaporation
A technology of industrial waste gas and pervaporation, which is applied in the separation/purification of hydroxyl compounds, separation methods, and separation of dispersed particles. consumption saving effect
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[0023] Industrial wet exhaust gas of isopropanol, flow rate 15000m 3 / h, temperature 50°C, after cooling, drying and filtering, dry waste gas containing isopropanol at room temperature without suspended solids is sent to four GAC or ACF adsorption-desorber groups with high-pressure centrifugal blower, of which The two are in the state of adsorption, and the isopropanol in the exhaust gas is absorbed by it, and the purification reaches the national exhaust gas emptying standard, and then it is emptied. After GAC or ACF is saturated with isopropanol, the adsorber is switched to desorption operation, and saturated steam with a pressure of 0.15-0.20 Mpa is evenly sprayed into it from the top, GAC or ACF is heated, and the adsorbed isopropanol is desorbed at the same time. After the attachment is completed, go to the next adsorption, and so on. It contains a large amount of latent heat and sensible heat, isopropanol-containing steam-saturated water vapor, and its heat energy fract...
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