Abstract

HOYOS BARRETO, Andrés Emilio; JIMENEZ CORREA, Mónica María; ORTIZ MUNOZ, Alejandro  and  MONTES DE CORREA, Consuelo. Cement plant gaseous pollutant emission reduction technologies. Ing. Investig. [online]. 2008, vol.28, n.3, pp. 41-46. ISSN 0120-5609.

A brief description of SO_X, NO_X and CO₂ formation is presented, these being the main pollutants emitted in the cement industry gas stream Several technologies for reducing NO_X, SO_X and CO₂ emissions in long wet kilns are introduced: primary measures preventing contaminant formation and secondary/tube end emission reduction measures. Strategies for preventing CO₂ (green-house effect gas) formation are also addressed, such as fuel and raw material substitution and CO₂ capture technologies which are still being developed.

Keywords : cement kiln; greenhouse effect; pollution control; NO_X; SO₂; CO₂.