Within our normal operation range, we remove from the wet scrubber slurry all
of the heavy tars and chars as a solids, most of the lighter tars, phenols
and aromotics and produce very clean water that is recirculated as part of the wet scrubber process.
This recirculation reduces wastewater
disposal and fresh water consumption
for the wet scrubber process.
The DRYTARS process recovers a high carbon content coal-like solids
suitable for re-use in the gasifier.
These solids contain the tar, chars, toulene,
benzene, etc. found in the wet scrubber slurry.
By recovering these solids we increase the
energy extraction efficiency of the gasification process