EESAC / Air pollution control

Air pollution control

With the enforcement of stricter environmental legislation, companies need more and more frequently appropriate technical expertise in order to control their air emissions.

As a result of the extended professional experience of EESAC's team, our services include practical support for the:

  • Advanced understanding of chemical reactions in cement and lime kilns leading to the release of emissions (NOx, SO2, CO, HCl, HF, heavy metals, TOC, specific organics like chlorinated aromatics, ...)
  • Pilot testing of new abatement technologies for the treatment of combustion gases on site
  • Identification of process conditions and selection of fuels enabling emissions to comply with local emission standards
  • Selection and implementation of abatement techniques like

- deNOx (SCR, SNCR, air staging),

- acid gas capture (SO2, HCl and HF) with different sorbent technologies

- treatment of organic compounds (thermal or catalytic oxidation, adsorption with specific sorbents)

Case study 1:  logo_pdf deNOx pilot test for preheater rotary kiln

Case study 2:   deNOX pilot test for a parallel flow regenerative kiln

Case study 3:   logo_pdf CO reduction in parallel flow generative kiln

Case study 4:   CO / TOC abatement for an annular shaft kiln

Case study 5:   logo_pdf CO reduction in shaft kiln

Case study 6:   HCl abatement tests for a kiln equipped with an Electrostatic Precipitator

Publication: ZKG INTERNATIONAL  Issue 1-2 2016   logo_pdf The reengineering of existing lime kilns

Publication: ZKG INTERNATIONAL  Issue   5  2016   logo_pdf Understanding the process conditions in a parallel flow regenerative kiln

Publication: ZKG INTERNATIONAL  Issue   5  2018   logo_pdf Modelled fate of sulphur and chlorine in rotary kilns part I