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An apparatus and process for adsorbing volatile organic compounds, or VOCs, and efficiently regenerating adsorbent material in an emission control system. Flue gas, emitted from a combustion unit burning an outside fuel and desorbed VOCs, is humidified and cooled with a set of water injectors. The r

An apparatus and process for adsorbing volatile organic compounds, or VOCs, and efficiently regenerating adsorbent material in an emission control system. Flue gas, emitted from a combustion unit burning an outside fuel and desorbed VOCs, is humidified and cooled with a set of water injectors. The resultant humidified flue gas is directed through the adsorbent material, which is rapidly superheated without pressurization. A method for controlling the regeneration cycle of the emission control system includes at least three sensor configurations including a breakthrough sensor, a desorbed gas sensor and a flue gas temperature sensor.

대표청구항 ▼

An emission control process for removing and concentrating volatile organic compounds from a gas stream, in an apparatus including a combustion unit, a set of water injectors and a flue, comprising the steps of: contacting said gas stream with an adsorbent material to remove said volatile organic co

An emission control process for removing and concentrating volatile organic compounds from a gas stream, in an apparatus including a combustion unit, a set of water injectors and a flue, comprising the steps of: contacting said gas stream with an adsorbent material to remove said volatile organic compounds therefrom; and thereafter burning an outside fuel in said combustion unit and discharging a combustion gas into said flue; humidifying and cooling said flue gas with a stream of injected water introduced into said flue gas by said water injectors so as to provide a humidified flue gas; condensing said humidified flue gas on said adsorbent material so as to release latent heat, thereby rapidly heating said adsorbent material until said adsorbent material reaches its dew point; and continuing to heat said adsorbent material above its dew point to dry said adsorbent material, thereby releasing a stream of desorbed volatile organic compounds. An adsorption/regeneration apparatus for removing and concentrating volatile organic compounds from a gas stream, comprising: an adsorber having adsorbent material; means for directing said gas stream through said adsorber to generate a clean air stream; a combustion unit; a flue to emit a flue gas from said combustion unit wherein said flue includes a conduit in gaseous communication with said adsorber for directing at least a portion of said flue gas to said adsorber; one or more water injectors disposed in said flue for injecting a stream of water into at least a portion of said flue gas so as to cool said flue gas and provide a humidified flue gas; means for directing said humidified flue gas through said adsorber wherein said humidified flue gas is condensed on said adsorbent material so as to release latent heat, thereby rapidly heating said adsorbent material until said adsorbent material reaches its dew point and thereafter raising the temperature of said humidified flue gas so as to heat said adsorbent material above its dew point and dry said adsorbent material and generate a desorbed gas stream; means for burning an outside combustible gas stream, said desorbed gas stream, and mixtures thereof in said combustion unit; and means for mixing said outside gas and said desorbed gas for burning in said combustion unit.