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This post was last edited by *lihuagong on 2016-2-17 16:45. How can companies improve the quality of compressed air produced by air compressors? The quality of compressed air is typically assessed based on the maximum allowable levels of moisture, oil, and particulate contaminants in it. The latest international standard is ISO 8573-1 ed 2.2010. To achieve the desired air quality, filters can be used to remove particulate contaminants, while dryers are used to eliminate moisture. The level of oil in the air depends on the type of compressor or post-treatment equipment used. Below are some practical guidelines for selecting air post-treatment equipment. To remove particulate impurities, it is necessary to select a filter that is suitable for the volume of gas being processed in order to filter out these particles; if the filter is too small, it will result in an increased pressure drop. To remove moisture, the choice of dryer depends on the required level of drying (dew point). There are various methods for drying compressed air, but they can be broadly divided into two categories: the first is cryogenic dryers, which dry the cooled air; the pressure dew point achieved with these devices is +2°C or higher. The second category consists of adsorption dryers, which use adsorption to remove moisture from the air, allowing the pressure dew point to be reduced to -70°C or even lower. Here, special mention should be made of the core dryer (also known as the modular adsorption dryer). This type of dryer is claimed to have a \"simple structure\" and consumes only about 5% of compressed air for regenerating the adsorbent. It **reduces the energy consumption associated with gas regeneration; it is simple to operate and easy to use, the replacement of adsorbents is more convenient, and its maintenance is cost-effective.**
Maximum allowable levels of moisture, oil, and particulate impurities in compressed air. Compressed air quality