LAPSE:2020.1215
Published Article
LAPSE:2020.1215
Experimental Investigation of Primary De-NOx Methods Application Effects on NOx and CO Emissions from a Small-Scale Furnace
December 17, 2020
Nitrogen oxides (NOx) from combustion contribute significantly to atmospheric pollution. An experimental setup was employed to investigate the application of three primary denitrification methods, i.e., reburning (staged combustion), overfiring air (OFA), and flue-gas recirculation (FGR), individually and in combination, combusting natural gas (NG) and propane−butane gas (PBG). Fuel heat inputs of 16 and 18 kW and air excess coefficients of 1.1 and 1.2, respectively, were tested. The highest individual denitrification efficiency of up to 74% was obtained for FGR, followed by reburning and OFA. A denitrification efficiency between 8.9% (reburning + OFA) and 72% (reburning + OFA + FGR) with NG combustion was observed. Using a 20% FGR rate yielded denitrification efficiency of 74% for NG and 65% for PBG and also led to a significant decrease in carbon monoxide (CO) emissions, so this can be recommended as the most efficient denitrification and de-CO method in small-scale furnaces. Reburning alone led to a sharp, more than 12-fold increase in CO emissions compared to the amount without any other method application. The presented results and the difference between our experimental data and the literature data acquired in some other studies indicate the need for further research.
Record ID
Keywords
combustion, flue-gas recirculation, furnace, nitrogen oxides, reburning
Subject
Suggested Citation
Lukáč L, Rimár M, Variny M, Kizek J, Lukáč P, Jablonský G, Janošovský J, Fedák M. Experimental Investigation of Primary De-NOx Methods Application Effects on NOx and CO Emissions from a Small-Scale Furnace. (2020). LAPSE:2020.1215
Author Affiliations
Lukáč L: Department of Thermal Technology and Gas Industry, Institute of Metallurgy, Faculty of Materials, Metallurgy and Recycling, Technical University of Kosice, Letná 9, 042 00 Košice, Slovakia [ORCID]
Rimár M: Department of Process Technique, Faculty of Manufacturing Technologies of the TU of Kosice with a Seat in Prešov, Technical University of Kosice, Štúrova 31, 080 01 Prešov, Slovakia
Variny M: Department of Chemical and Biochemical Engineering, Faculty of Chemical and Food Technology, Slovak University of Technology, Radlinského 9, 812 37 Bratislava, Slovakia [ORCID]
Kizek J: Department of Process Technique, Faculty of Manufacturing Technologies of the TU of Kosice with a Seat in Prešov, Technical University of Kosice, Štúrova 31, 080 01 Prešov, Slovakia [ORCID]
Lukáč P: Department of Power Engineering, Institute of Power and Process Engineering, Faculty of Mechanical Engineering, Technical University of Košice, Letná 9, 042 00 Košice, Slovakia
Jablonský G: Department of Thermal Technology and Gas Industry, Institute of Metallurgy, Faculty of Materials, Metallurgy and Recycling, Technical University of Kosice, Letná 9, 042 00 Košice, Slovakia
Janošovský J: Department of Chemical and Biochemical Engineering, Faculty of Chemical and Food Technology, Slovak University of Technology, Radlinského 9, 812 37 Bratislava, Slovakia
Fedák M: Department of Process Technique, Faculty of Manufacturing Technologies of the TU of Kosice with a Seat in Prešov, Technical University of Kosice, Štúrova 31, 080 01 Prešov, Slovakia [ORCID]
Rimár M: Department of Process Technique, Faculty of Manufacturing Technologies of the TU of Kosice with a Seat in Prešov, Technical University of Kosice, Štúrova 31, 080 01 Prešov, Slovakia
Variny M: Department of Chemical and Biochemical Engineering, Faculty of Chemical and Food Technology, Slovak University of Technology, Radlinského 9, 812 37 Bratislava, Slovakia [ORCID]
Kizek J: Department of Process Technique, Faculty of Manufacturing Technologies of the TU of Kosice with a Seat in Prešov, Technical University of Kosice, Štúrova 31, 080 01 Prešov, Slovakia [ORCID]
Lukáč P: Department of Power Engineering, Institute of Power and Process Engineering, Faculty of Mechanical Engineering, Technical University of Košice, Letná 9, 042 00 Košice, Slovakia
Jablonský G: Department of Thermal Technology and Gas Industry, Institute of Metallurgy, Faculty of Materials, Metallurgy and Recycling, Technical University of Kosice, Letná 9, 042 00 Košice, Slovakia
Janošovský J: Department of Chemical and Biochemical Engineering, Faculty of Chemical and Food Technology, Slovak University of Technology, Radlinského 9, 812 37 Bratislava, Slovakia
Fedák M: Department of Process Technique, Faculty of Manufacturing Technologies of the TU of Kosice with a Seat in Prešov, Technical University of Kosice, Štúrova 31, 080 01 Prešov, Slovakia [ORCID]
Journal Name
Processes
Volume
8
Issue
8
Article Number
E940
Year
2020
Publication Date
2020-08-05
Published Version
ISSN
2227-9717
Version Comments
Original Submission
Other Meta
PII: pr8080940, Publication Type: Journal Article
Record Map
Published Article
LAPSE:2020.1215
This Record
External Link
doi:10.3390/pr8080940
Publisher Version
Download
Meta
Record Statistics
Record Views
360
Version History
[v1] (Original Submission)
Dec 17, 2020
Verified by curator on
Dec 17, 2020
This Version Number
v1
Citations
Most Recent
This Version
URL Here
https://psecommunity.org/LAPSE:2020.1215
Original Submitter
Calvin Tsay
Links to Related Works