ORAL

SESSION: Non-ferrousMonAM-R1	Barrios International Symposium on Sustainable Non-ferrous Smelting and Hydro/Electrochemical Processing (5th Intl. Symp. on Sustainable Non-ferrous Smelting and Hydro/Electrochemical Processing)
Mon Oct, 23 2017	Room: Condesa II
Session Chairs: Guillermo Rios; Thomas Gonzales; Session Monitor: TBA

11:30: [Non-ferrousMonAM02] Plenary
Treatment of Gases from Flash Furnace and Slag Cleaning Furnace Tapping Ventilation System
Guillermo Rios¹ ; Pedro Goncalves² ; Leandro Gonzalez² ; Manuel Ramos² ; Jesus Ovalle² ; Miguel Palacios² ; ¹Atlantic Copper SLU, Huelva, Spain; ², , ;
Paper Id: 165 [Abstract]

The gases from the Flash Smelting Furnace (FSF) and the Slag Cleaning Electric Furnace (SCEF) tapping operations are conducted through exhaust hoods located in the launders, to a baghouse filter in order to meet the current emission limits established in Atlantic Copper’s Environmental Permit (EP). This off-gas stream contains 20.9% O2 at environment temperature so that, once it has been dedusted, it can be partially recirculated as blast air in the FSF, with the rest being sent into the atmosphere. Foreseeing changes in European environmental legislation, and as a result of the latest revision of the best available techniques reference document on non-ferrous metals (NFM BREF) in compliance with the European Industrial Emissions Directive 2010/75 (IED), Atlantic Copper launched a project aimed at defining the most suitable SO2 abatement treatment of FSF and SCEF tapping ventilation system off-gas. Preliminary pilot tests were performed in SCEF tapping ventilation system in 2015 and 2016, which confirmed the expected SO2 removal using Sorbacal® SP and SPS. As a result of these promising results, a third campaign of tests was carried out in 2017 that confirmed the technical feasibility of the selected technology, based on SO2 dry abatement. This paper describes the results of these pilot-testing campaigns.