Ettlingen, January 2000
When flue gas is being scrubbed, aerosols form
when the flue gas passes through the dew point. Especially aerosols of ammonium
salts of HCl, SO3/H2SO4 as well as pure HCl and SO3 aerosols form.
When
high temperature quenches are used, e.g. after the combustion of solutions
containing salt, sodium or potassium salts might produce very high aerosol
contents especially downstream from submerged quenches (sudden quenching of gas
from approx. 1000° C to cooling limit temperature). The complexity of the
aerosol separation system considerably depends on the type of quenching in view
of the aerosol concentrations as well as the sizes of the aerosol particles.
Dr. Andreas Koch, project engineer of GEA Jet Pumps GmbH, Ettlingen,
will give a speech on different concepts of minimizing the aerosol formation
and the use of the individual aerosol separation concepts during the ACHEMA
conference.