초록 ▼

A restaurant emissions abatement system is disclosed which employs a rotary heat regenerative thermal or catalytic oxidizer. Thus, heat which normally would be exhausted into the atmosphere, is recovered by being transferred to incoming unoxidized restaurant emissions. The rotary oxidizers may be of

A restaurant emissions abatement system is disclosed which employs a rotary heat regenerative thermal or catalytic oxidizer. Thus, heat which normally would be exhausted into the atmosphere, is recovered by being transferred to incoming unoxidized restaurant emissions. The rotary oxidizers may be of a variety of designs including orientations which allow for perpendicular or axial flow of the emissions stream through the rotary oxidizer relative to the axis of rotation. The rotary design of the oxidizers also provides an advantage of permitting in-situ cleaning of the oxidizer (i.e., not having to remove oxidizer from abatement system) by simply lowering the speed of the oxidizer's rotation or stopping rotation altogether to permit hot gases to thoroughly oxidize accumulations of such contaminants as greases and fats.

대표청구항 ▼

[ What is claimed is:] [1.]1. A system for removal of particulate matter and volatile organic compounds from a cooking emissions stream comprising:an inlet duct for receiving a flow of the cooking emissions stream and directing the stream to a rotary, heat regenerative device having an axis of rotat

[ What is claimed is:] [1.]1. A system for removal of particulate matter and volatile organic compounds from a cooking emissions stream comprising:an inlet duct for receiving a flow of the cooking emissions stream and directing the stream to a rotary, heat regenerative device having an axis of rotation such that the flow of the emissions stream through the rotary device is perpendicular or axial with reference to the axis of rotation of the rotary device;the rotary device comprising:(a) thermal oxidation and/or catalytic oxidation means whereby the emissions stream is thermally and/or catalytically oxidized;(b) heat exchanger means to recover heat from the emissions stream after thermal and/or catalytic oxidation and before the oxidized emissions are returned to the atmosphere;(c) one or more rotors, wherein a first rotor comprises a plurality of discrete heat exchange surfaces arranged in an axially parallel and longitudinal array, said first rotor having a first and second end, wherein the surfaces form a plurality of heat exchange channels;(d) a transfer chamber connected to the second end of the first rotor;(e) a sealing end plate adjoining the first end of the first rotor, wherein the end plate divides the first rotor into inlet and outlet compartments;(f) an adjustable means for rotating the first rotor about the axis of rotation;(g) a stationary or rotating second rotor, positioned between said first rotor and said transfer chamber, wherein said second rotor comprises a plurality of heat exchange surfaces arranged in an axially parallel and longitudinal array, said surfaces forming a plurality of heat exchange channels in fluid communication with said first rotor and said transfer chamber, said second rotor having a cell density greater than that of said first rotor andan outlet duct for directing the oxidized emissions stream from the rotary device to the atmosphere.