Emission Reduction with Innovative Oxygen Injection

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Title Emission Reduction with Innovative Oxygen Injection
Creator Lenhert, D.
Contributor Damstedt, B., SaNeto, V., Laux, S.
Date 2017-12-11
Description Paper from the AFRC 2017 conference titled Emission Reduction with Innovative Oxygen Injection
Abstract The nature of some industrial combustion processes makes the simultaneous reduction of NOx and CO very difficult and often requires very expensive end-of-pipe pollution abatement as more stringent limits have essentially "boxed" operators into a very narrow operating window. The targeted injection of oxygen can be a very effective tool to reduce these air pollutants and provide operational flexibility by addressing CO from the combustion process at the outlet of the system. This presentation will provide three examples of this strategy from very different industries and introduce the equipment that was used.; ; The first example will review the commercial installation of CONOx™ technology to address NOx and CO from a refinery FCC regenerator unit. The unique technology is able to address flue gas CO and NOx simultaneously without converting NOx precursors to additional NOx. A second example will introduce the injection of oxygen into a cement kiln to reduce CO slip from the combustion process. A key success factor in this application is the rapid and effective mixing of a relatively small oxygen flow into a much larger flue gas stream. Lastly, oxygen was injected into an aluminum re-melting furnace to reduce large amounts of CO that are present at the beginning of the melting cycle due to oils and other combustibles on the dirty scrap. Although this approach is known, it was recently enhanced with the introduction of Praxair's OPTIVIEW™ technology. This technology automates the oxygen injection based on real-time flame imaging and analysis to minimize the number of exceedances and reduce demands on operators.
Type Event
Format application/pdf
Rights No copyright issues exist
OCR Text Show
Metadata Cataloger Catrina Wilson
ARK ark:/87278/s69d17fj
Setname uu_afrc
Date Created 2018-12-10
Date Modified 2018-12-10
ID 1388796
Reference URL https://collections.lib.utah.edu/ark:/87278/s69d17fj