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From over 130 oxyfuel installations in various melting applications for aluminium, Linde can summarize the benefits of oxyfuel combustion as:
- Up to 100% higher melt rate for increased furnace throughput
- 50% lower energy costs due to a more highly efficient combustion and better heat transfer
- Unwanted contaminants in low grade aluminium scrap can be turned into valuable energy
- Better yield
- More possibilities to control the process
- Often possibilities to increase power input into furnace (MW/m3)
- Up to 70-80% less flue gases for reduced ducting and "filters"
- Lower emissions (CO2, NOx, CO) and lower flue gas cleaning costs
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