Mikä on adsorbenttikuivaaja?
A heatless desiccant dryer dries compressed air to extremely low moisture levels (pressure dew point -20°C) using adsorbents such as activated alumina or molecular sieves. This technology is necessary when ordinary refrigerated drying is insufficient — for example in cold environments, cold storage, or processes in the food and pharmaceutical industries where moisture can cause serious quality problems.
The system operates with two towers that alternate between drying and regeneration. The heatless variant regenerates the desiccant by using a portion of the already dried compressed air (12–15% of capacity), providing a simple and reliable design without the need for external heating. Inlet oil content below 0.01 ppm is required for optimal function.
With capacities from 1.2 to 130 m³/min, there are models for everything from smaller installations to large industrial systems. The heatless desiccant dryer is the cost-effective choice when a pressure dew point of -20°C is sufficient and simplicity of operation is prioritized.
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