ISSN print edition: 0366-6352 ISSN electronic edition: 1336-9075 Registr. No.: MK SR 9/7 Published monthly

Exergoecological analysis of processing of SO₂-containing gases from zinc production

G. Patronov and S. Magaeva

Department of Chemical Technology, University of Plovdiv, 24 Tcar Assen Str., 4000 Plovdiv, Bulgaria

E-mail: patron@uni-plovdiv.bg

Received: 24 January 2007  Revised: 4 May 2007  Accepted: 7 June 2007

Abstract: An energy and technological study of processing SO₂-containing metallurgical gases from zinc production to sulfuric acid production using the exergy method of thermodynamic analysis has bean carried out. A real operating installation since 2003 at the KCM-SA, Plovdiv, Bulgaria, has been used as the model scheme. The principal production stages have been analyzed. The absolute and the relative exergy characteristics of the separate stages as well as of the process as a whole have been calculated. The results have been used to evaluate the influence of sulfuric acid production on the environment. The results obtained have been compared with previous studies on similar processes both in zinc and in copper production. The studied installation of sulfuric acid production has good exergoecological indices, defining it as an effective process both in thermotechnical and in ecological aspects.

Keywords: SO₂-containing metallurgical gases - sulfuric acid production - exergy analysis - emissions

Full paper is available at www.springerlink.com.

DOI: 10.2478/s11696-007-0062-z

Chemical Papers 61 (6) 457–463 (2007)