Reference Document on Best Available Techniques in the Large Volume Organic Chemical Industry February 2003

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Reference Document on Best Available Techniques in the Large Volume Organic Chemical Industry February 2003

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VOCs from process vents are, where possible, re-used within processes but this is dependent on such factors as VOC composition, any restrictions on re-use and VOC value. The next alternative is to recover the VOC calorific content as fuel and, if not, there may be a requirement for abatement. A combination of techniques may be needed, for example: pre- treatment (to remove moisture and particulates); concentration of a dilute gas stream; primary removal to reduce high concentrations, and finally polishing to achieve the desired release levels. In general terms, condensation, absorption and adsorption offer opportunities for VOC capture and recovery, whilst oxidation techniques involve...

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