Discussion on desulfurization using solid adsorbents
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As the title says. Currently, desulfurization agents such as zinc oxide used in industry generate ZnS upon penetration, and this substance is difficult to regenerate; as a result, they are usually replaced directly, leading to the creation of large amounts of solid (hazardous) waste. I learned some time ago that someone at a university abroad claimed to have developed a zinc oxide desulfurizer that can operate at room temperature, with a sulfur capacity of around 7%; it can be regenerated up to 10 times at around 500°C (in an air atmosphere, releasing SO2). Let’s discuss whether it is possible to apply this type of desulfurizer on an industrial scale Especially in terms of cost-effectiveness, is the cost of regeneration higher than that of replacing the material?
How should the regenerated exhaust gas be treated?
Yes, recycled exhaust gas is a problem. We usually replace it once a year. Does replacing it 10 times mean it can be used for ten years each time? If the waste gas is easy to handle, then that would be ideal