Process design

Solvent Emissions Directive (SED)

The SED seeks to limit the discharge of solvents or volatile organic compounds (VOCs) to the environment via the atmosphere.  The directive sets limits on absolute amounts of discharges and maximum permitted rates of discharge.

Also, the directive seeks to replace the most harmful VOCs.  The use of these solvents is still possible with justification, but very tight emission limits apply.

VOC’s that may seem benign in terms of toxicity and lack of PBT properties may still cause harm in the atmosphere with issues like photochemical smog and tropospheric ozone generation.