초록 ▼

Methods and apparatus are provided for destruction of volatile organic compounds (“VOC\s”) from process fumes having variable amounts of such VOC\s wherein a nominal amount of the fumes are passed through an oxidizer for destruction of the VOC\s and the hot products from the oxidizer are fed to an a

Methods and apparatus are provided for destruction of volatile organic compounds (“VOC\s”) from process fumes having variable amounts of such VOC\s wherein a nominal amount of the fumes are passed through an oxidizer for destruction of the VOC\s and the hot products from the oxidizer are fed to an afterburner that is principally made up of a matrix bed of heat resistant material. The heat from the oxidized gases heats the matrix bed. Fume flows exceeding the nominal flow are bypassed directly to an inlet port of the afterburner where they are passed through the matrix bed of the afterburner, which has been heated by the oxidized gases from the oxidizer, and are combusted into additional gaseous products in a combustion wave. The system allows for utilization of the heat produced from the oxidation of the nominal flow for destructing fume flows that exceed the nominal flow.

대표청구항 ▼

A method for abating VOC emissions from a gas stream containing variable amounts of VOC emissions comprising the steps of: (a) feeding a nominal flow of the gas stream through an oxidizer whereby VOC\s within the nominal flow are thermally oxidized into hot gaseous products; (b) directing the gaseou

A method for abating VOC emissions from a gas stream containing variable amounts of VOC emissions comprising the steps of: (a) feeding a nominal flow of the gas stream through an oxidizer whereby VOC\s within the nominal flow are thermally oxidized into hot gaseous products; (b) directing the gaseous products to an afterburner having a matrix bed of heat resistant material at a temperature exceeding the combustion temperature of the VOC emissions whereby the hot gaseous products pass through the matrix bed and transfer heat to the heat resistant material; (c) bypassing any portion of the gas stream containing VOC emissions that exceeds the nominal flow to the afterburner without passing it through the oxidizer; (d) feeding the bypassed gas stream portion through the matrix bed of the afterburner, whereby VOC\s in the bypassed gas stream portion are combusted into additional gaseous products in a combustion wave at oxidation temperatures of from 1400°F. to 3500°F.; and (e) directing such gaseous products and additional gaseous products to an afterburner outlet.