Our oxy-fuel technology also helps to reduce energy consumption and emissions when recycling aluminium scrap.
WASTOX® combines oxygen burners with WASTOX® oxygen lances, combusting unwanted contaminants directly in the furnace.
Using the WASTOX® control panel, the operator can regulate the oxygen lances and oxygen burner in parallel to burn any uncombusted hydrocarbons or carbon monoxide (CO) directly in the furnace.
This laser-enabled system measures the flue gas composition, allowing tight control over the combustion process, turning unwanted organic contaminants into fuel and reducing dependency on fossil fuels.
By analysing the flue gas composition carefully, WASTOX® enables tight control over the combustion process. This patented, versatile system is successfully deployed by numerous customers worldwide.
Tests run by Linde and our partners from the aluminium industry aimed at maximising combustion efficiency have shown that combustibles react more efficiently to a pure oxygen stream than to an oxygen-enriched flame.
Tests to recycle used drink cans with a straightforward air-fuel burner showed that between 20 and 50 percent of the carbons on the processed scrap (paint, coatings) are released as volatile organic compounds (VOCs) and carbon monoxide.
An oxygen burner reduced these emissions to 1 percent. With the WASTOX® oxygen lance and an oxygen burner stoichiometric mode, emissions were cut to less than 0.01 percent.
| At a glance |
| Name: | Aluminium recycling |
| Country: | Global |
| Segment: | Aluminium industry |
| More information: | WASTOX® |
