Fuel sulfur effects on No(x) formation in turbulent diffusion flames

Persistent Link:
http://hdl.handle.net/10150/348049
Title:
Fuel sulfur effects on No(x) formation in turbulent diffusion flames
Author:
Corley, Timothy Lynn
Issue Date:
1976
Publisher:
The University of Arizona.
Rights:
Copyright © is held by the author. Digital access to this material is made possible by the University Libraries, University of Arizona. Further transmission, reproduction or presentation (such as public display or performance) of protected items is prohibited except with permission of the author.
Abstract:
Interactions between certain fuel sulfur compounds and nitric oxide (NO) in turbulent gaseous and distillate oill diffusion flames were experimentally investigated utilizing a 75,000 Btu/hr laboratory combustor. Aerodynamics, air preheat conditions, and overall excess air conditions were varied to determine their role on any such interaction. Results indicated that addition of sulfur dioxide (SO₂) to natural gas flames could enhance or inhibit NO emissions. Local flame stoichiometry and temperature, which were influenced by fuel injector type, determined which effect was observed and the extent to which it occurred. Thiophen (C₄H₄S) and pyridine (C₅H₅N) were added to #2 diesel oil to determine effects of fuel sulfur on conversion of chemically bound fuel nitrogen to No. No discernible effect was observed at "zero" air preheat conditions. No emissions were enhanced at high air preheat conditions. Addition of SO₂ to natural gas flames doped with ammonia (NH₃) produced a significant increase in conversion of NH₃ to NO at high air preheat conditions. Inhibition effects were explained in terms of homogeneous catalysis of recombination reactions by SO₂. Hydrogen abstraction reactions involving reduced sulfur species and other oxidation reactions involving SO₂, or a reduced form, were considered to explain the enhancement effect.
Type:
text; Thesis-Reproduction (electronic)
Keywords:
Gas as fuel.; Nitric oxide.; Sulfur dioxide.; Sulfur.
Degree Name:
M.S.
Degree Level:
masters
Degree Program:
Chemical Engineering; Graduate College
Degree Grantor:
University of Arizona

Full metadata record

DC FieldValue Language
dc.language.isoen_USen
dc.titleFuel sulfur effects on No(x) formation in turbulent diffusion flamesen
dc.creatorCorley, Timothy Lynnen
dc.contributor.authorCorley, Timothy Lynnen
dc.date.issued1976en
dc.publisherThe University of Arizona.en
dc.rightsCopyright © is held by the author. Digital access to this material is made possible by the University Libraries, University of Arizona. Further transmission, reproduction or presentation (such as public display or performance) of protected items is prohibited except with permission of the author.en
dc.description.abstractInteractions between certain fuel sulfur compounds and nitric oxide (NO) in turbulent gaseous and distillate oill diffusion flames were experimentally investigated utilizing a 75,000 Btu/hr laboratory combustor. Aerodynamics, air preheat conditions, and overall excess air conditions were varied to determine their role on any such interaction. Results indicated that addition of sulfur dioxide (SO₂) to natural gas flames could enhance or inhibit NO emissions. Local flame stoichiometry and temperature, which were influenced by fuel injector type, determined which effect was observed and the extent to which it occurred. Thiophen (C₄H₄S) and pyridine (C₅H₅N) were added to #2 diesel oil to determine effects of fuel sulfur on conversion of chemically bound fuel nitrogen to No. No discernible effect was observed at "zero" air preheat conditions. No emissions were enhanced at high air preheat conditions. Addition of SO₂ to natural gas flames doped with ammonia (NH₃) produced a significant increase in conversion of NH₃ to NO at high air preheat conditions. Inhibition effects were explained in terms of homogeneous catalysis of recombination reactions by SO₂. Hydrogen abstraction reactions involving reduced sulfur species and other oxidation reactions involving SO₂, or a reduced form, were considered to explain the enhancement effect.en
dc.description.noteThis item was digitized from a paper original and/or a microfilm copy. If you need higher-resolution images for any content in this item, please contact us at repository@u.library.arizona.edu.en
dc.typetexten
dc.typeThesis-Reproduction (electronic)en
dc.subjectGas as fuel.en
dc.subjectNitric oxide.en
dc.subjectSulfur dioxide.en
dc.subjectSulfur.en
thesis.degree.nameM.S.en
thesis.degree.levelmastersen
thesis.degree.disciplineChemical Engineeringen
thesis.degree.disciplineGraduate Collegeen
thesis.degree.grantorUniversity of Arizonaen
dc.identifier.oclc702121534en
dc.identifier.bibrecord.b64850778en
dc.identifier.callnumberE9791 1976 473en
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