Method for reducing nitrogen oxides in strip heat treatment furnaces
US12044402B2 · kind B2 · utility
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19Claims
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Key dates
| Filing date | May 29, 2018 |
| Grant date | Jul 23, 2024 |
| Priority date | — |
| Expiry date | Sep 3, 2041 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E20/30
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A method for treating a metal strip, where the metal strip undergoes heat treatment in a directly fired furnace and is subsequently heat-treated further in a radiant tube furnace. At least part of the exhaust gases from the radiant tubes is fed to the directly fired furnace.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.