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NO(X) and SO(X) Flue Gas Treatment System Based on Sulfur-Enriched Organic Oil in Water Emulsion

[Image: see text] Nitrogen (NO(X)) and sulfur (SO(X)) oxides, the major gaseous pollutants emitted from fossil fuel combustion, have significant health and environmental concerns. Environmental regulations limit these pollutant emissions to tolerable levels. Currently, these pollutants are treated b...

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Autores principales: Khabra, Alon, Pinhasi, Gad A., Zidki, Tomer
Formato: Online Artículo Texto
Lenguaje:English
Publicado: American Chemical Society 2021
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7859937/
https://www.ncbi.nlm.nih.gov/pubmed/33553875
http://dx.doi.org/10.1021/acsomega.0c04485
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author Khabra, Alon
Pinhasi, Gad A.
Zidki, Tomer
author_facet Khabra, Alon
Pinhasi, Gad A.
Zidki, Tomer
author_sort Khabra, Alon
collection PubMed
description [Image: see text] Nitrogen (NO(X)) and sulfur (SO(X)) oxides, the major gaseous pollutants emitted from fossil fuel combustion, have significant health and environmental concerns. Environmental regulations limit these pollutant emissions to tolerable levels. Currently, these pollutants are treated by flue gas desulfurization (SO(X) removal) and selective catalytic reduction (NO(X) removal) processes. However, these technologies require large footprints, use expensive catalysts, and operate under high working temperatures. A new catalyst is reported herein, based on sulfur-enriched oil emulsified with water, where the active catalytic species are sulfur-based oxides. The catalyst has been developed using O(2) as the oxidation reagent in a low-temperature wet scrubber rather than H(2)O(2) or O(3) that are presently used. The catalytically oxidized pollutants are converted to produce ammonium fertilizers by NH(4)OH addition. As a result of treatment with this novel catalyst, we observed reductions in emissions of SO(X) and NO(X) of >85% and 23%, respectively. The catalyst production and the wet scrubbing process are discussed in detail.
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spelling pubmed-78599372021-02-05 NO(X) and SO(X) Flue Gas Treatment System Based on Sulfur-Enriched Organic Oil in Water Emulsion Khabra, Alon Pinhasi, Gad A. Zidki, Tomer ACS Omega [Image: see text] Nitrogen (NO(X)) and sulfur (SO(X)) oxides, the major gaseous pollutants emitted from fossil fuel combustion, have significant health and environmental concerns. Environmental regulations limit these pollutant emissions to tolerable levels. Currently, these pollutants are treated by flue gas desulfurization (SO(X) removal) and selective catalytic reduction (NO(X) removal) processes. However, these technologies require large footprints, use expensive catalysts, and operate under high working temperatures. A new catalyst is reported herein, based on sulfur-enriched oil emulsified with water, where the active catalytic species are sulfur-based oxides. The catalyst has been developed using O(2) as the oxidation reagent in a low-temperature wet scrubber rather than H(2)O(2) or O(3) that are presently used. The catalytically oxidized pollutants are converted to produce ammonium fertilizers by NH(4)OH addition. As a result of treatment with this novel catalyst, we observed reductions in emissions of SO(X) and NO(X) of >85% and 23%, respectively. The catalyst production and the wet scrubbing process are discussed in detail. American Chemical Society 2021-01-21 /pmc/articles/PMC7859937/ /pubmed/33553875 http://dx.doi.org/10.1021/acsomega.0c04485 Text en © 2021 The Authors. Published by American Chemical Society This is an open access article published under a Creative Commons Non-Commercial No Derivative Works (CC-BY-NC-ND) Attribution License (http://pubs.acs.org/page/policy/authorchoice_ccbyncnd_termsofuse.html) , which permits copying and redistribution of the article, and creation of adaptations, all for non-commercial purposes.
spellingShingle Khabra, Alon
Pinhasi, Gad A.
Zidki, Tomer
NO(X) and SO(X) Flue Gas Treatment System Based on Sulfur-Enriched Organic Oil in Water Emulsion
title NO(X) and SO(X) Flue Gas Treatment System Based on Sulfur-Enriched Organic Oil in Water Emulsion
title_full NO(X) and SO(X) Flue Gas Treatment System Based on Sulfur-Enriched Organic Oil in Water Emulsion
title_fullStr NO(X) and SO(X) Flue Gas Treatment System Based on Sulfur-Enriched Organic Oil in Water Emulsion
title_full_unstemmed NO(X) and SO(X) Flue Gas Treatment System Based on Sulfur-Enriched Organic Oil in Water Emulsion
title_short NO(X) and SO(X) Flue Gas Treatment System Based on Sulfur-Enriched Organic Oil in Water Emulsion
title_sort no(x) and so(x) flue gas treatment system based on sulfur-enriched organic oil in water emulsion
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7859937/
https://www.ncbi.nlm.nih.gov/pubmed/33553875
http://dx.doi.org/10.1021/acsomega.0c04485
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