• Oxygen-Enriched Combustion Studies with the Low NOX CGRI Burner

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Tomorrow a new paper will be published in the IFRF Combustion Journal (http://www.journal.ifrf.net), entitled:

“Oxygen-enriched Combustion Studies with the Low NOx CGRI Burner”


D. Poirier, E.W. Grandmaison*, A.D. Lawrence, M.D. Matovic and E. Boyd


E. W. Grandmaison
Department of Chemical Engineering,
Queen’s University,
Kingston, ON  K7L 3N6, Canada.

FAX:  1 613-533-6637
Email: grandmai@chee.queensu.ca


An oxygen-enriched/natural gas combustion study with a modified low NOX CGRI burner has been completed.  Effects of oxygen enrichment, at various stack oxygen levels and a single furnace operating temperature, on NOX and CO2 emissions, fuel efficiency and furnace temperature distribution, were determined.  Combined effects of oxygen enrichment and air infiltration were also studied.  A single sidewall mounted burner was employed in the pilot scale CAGCT research furnace.  The firing rate required to maintain the furnace temperature at 1100oC decreased linearly with increasing oxygen enrichment.  At full oxygen enrichment a reduction of 40-45% in the firing rate was needed to maintain constant furnace temperature. NOX emissions (< 12 mg/MJ) were relatively constant with changes in oxygen enrichment levels below ~60% and decreased at higher oxygen enrichment.  NOX emission increased with increasing stack oxygen concentration at all oxygen enrichment levels.  Air infiltration resulted in NOX emissions similar to those observed with no air infiltration but with similar stack oxygen concentrations.  The standard deviation of the temperature distribution for the furnace roof and blind sidewall was in the range, 19 – 27 oC with no oxygen enrichment and 31 – 34 oC with 90% oxygen enrichment.

Key words: oxygen-enriched combustion, low NOX combustion, energy efficiency


The full paper may be downloaded from the server, in the “New Papers” section (http://www.journal.ifrf.net/articles.html), by clicking on the Acrobat PDF icon alongside the title.

Publication in the Journal

The Editor-in-Chief (See associated article in this edition of the MNM) would like to remind all potential authors that publication in the Journal is open to all. If you have interesting results to publish in the field of, or related to, industrial combustion, we invite you to prepare a paper according to the guidelines given in the Author’s Guide on the website (http://www.journal.ifrf.net/).

Papers may be regular “articles” (typically up to 20 pages) or Communications (typically up to 4/5 pages). Review papers can of course be longer. Remember that figures and graphics in general can be in full color. This advantage should be encouraged.

All manuscripts and associated files, proposed for publication should be sent by the Corresponding Author in a compressed/zip file, as an email attachment to journal@ifrf.net. This file should include a statement that the proposal’s content is unpublished material that has not being submitted for publication elsewhere. When an article by the author(s) is cited in the proposed article as “in press”, a copy of this article should accompany the proposed article and should be included in the compressed file.

The Editor-in-Chief looks forward to receiving your proposals.