Patent ID: 7789938
Filing Date: 2010-09-07
Classification: B01D

Abstract:
1. Device for drying a hot compressed gas received from a supply of hot compressed gas to be dried, comprising at least two pressure vessels, each of which is filled with a desiccant and includes a first inlet arranged to receive hot compressed gas, and an outlet for discharge of dried compressed gas, and a take-up point in communication with the outlets for supplying compressed dried gas, said pressure vessels being alternately usable as a drying vessel for drying compressed gas to be dried and as a regenerating vessel for regenerating the desiccant in the respective vessel, said pressure vessels each including at least two layers of desiccant, including a first layer of waterproof desiccant and a second layer of a desiccant which is optionally waterproof, and wherein the pressure vessels each include a second input arranged to receive hot compressed gas for regenerating desiccant constituting the first layer by the heat of the hot compressed gas and wherein the first inlet is located so as to open into the first layer of waterproof desiccant, and the outlet is provided so as to discharge dried compressed gas after the gas exits the second layer of desiccant.