Fragmentation of small coal particles under fluidized-bed combustor conditions
Identifieur interne : 000D75 ( Istex/Corpus ); précédent : 000D74; suivant : 000D76Fragmentation of small coal particles under fluidized-bed combustor conditions
Auteurs : B. R. Stanmore ; A. Brillard ; P. Gilot ; L. DelfosseSource :
- Symposium (International) on Combustion [ 0082-0784 ] ; 1996.
English descriptors
- KwdEn :
- Anthracite, Breakage, Chirone, Coal particles, Coal samples, Coal science, Coal sphere, Coal utilization, Combustion institute, Compressive stress, Content coals, Flambant, Fluidized beds, Fragmentation, Fragmentation behavior, Greater extent, Higher temperatures, International conference, John wiley, Larger particles, Less breakage, Major product fragments, Modal diameter, Mure, Mure anthracite, Mure coal, Optical technique, Original size range, Other hand, Outer shell, Particle, Particle breakage, Particle size distributions, Physical properties, Primary fragmentation, Product particles, Product size distributions, Provence, Provence coal, Provence particles, Pure nitrogen, Radial direction, Same conclusion, Small coal particles, Small particles, Smaller particles, Thermal stress, Thermal stress model, Thermal stresses, Uidized beds, Vitrinite, Vitrinite content, Volatile, Volatile matter content, Volatile pressure.
- Teeft :
- Anthracite, Breakage, Chirone, Coal particles, Coal samples, Coal science, Coal sphere, Coal utilization, Combustion institute, Compressive stress, Content coals, Flambant, Fluidized beds, Fragmentation, Fragmentation behavior, Greater extent, Higher temperatures, International conference, John wiley, Larger particles, Less breakage, Major product fragments, Modal diameter, Mure, Mure anthracite, Mure coal, Optical technique, Original size range, Other hand, Outer shell, Particle, Particle breakage, Particle size distributions, Physical properties, Primary fragmentation, Product particles, Product size distributions, Provence, Provence coal, Provence particles, Pure nitrogen, Radial direction, Same conclusion, Small coal particles, Small particles, Smaller particles, Thermal stress, Thermal stress model, Thermal stresses, Uidized beds, Vitrinite, Vitrinite content, Volatile, Volatile matter content, Volatile pressure.
Abstract
Particles of four coals sereened to mean diameters (do) of 1.5 and 2.5 mm were subjected to rapid radiant heating under nitrogen and/or 5% oxygen, and the product particles were collected after some seconds. The number distributions of size for the products were compared to the original distributions. The 1.5-mm particles suffered limited breakage with some dust and a small amount of do/2 fragments produced. The amount of breakage was independent of volatile matter content, but greater with higher vitrinite materials. The behavior was consistent with the predictions of a model based on thermally induced stress. The manner of breakage of 2.5-mm particles of a very high VM coal and an anthracite were contradictory, with only some particles of the former breaking, but most of the latter. Increasing the pressure to 1.0 MPa led to less breakage with the high VM coal, suggesting that pressure from the volatiles is contributing to breakage. The degree of fragmentation under 1.0 MPa increased for the anthracite, which is consistent with the operation of the thermal stress model. The influence of oxygen on breakage in this case is determined by the volatile matter content.
Url:
DOI: 10.1016/S0082-0784(96)80173-1
Links to Exploration step
ISTEX:495B17354B7DF6144D0F3DE89E1E4632F5101C64Le document en format XML
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R." last="Stanmore">B. R. Stanmore</name><affiliation><mods:affiliation>Department of Chemical Engineering University of Queensland 4072, Australia</mods:affiliation></affiliation></author><author><name sortKey="Brillard, A" sort="Brillard, A" uniqKey="Brillard A" first="A." last="Brillard">A. Brillard</name><affiliation><mods:affiliation>Laboratoire de Mathématiques Université de Haute-Alsace 4 rue des Frères Lumière 68200 Mulhouse, France</mods:affiliation></affiliation></author><author><name sortKey="Gilot, P" sort="Gilot, P" uniqKey="Gilot P" first="P." last="Gilot">P. Gilot</name><affiliation><mods:affiliation>Laboratoire Gestion des Risques et Environnement Ecole nationale Supérieure de Chimie de Mulhouse 25 rue de Chemnitz 68200 Mulhouse, France</mods:affiliation></affiliation></author><author><name sortKey="Delfosse, L" sort="Delfosse, L" uniqKey="Delfosse L" first="L." last="Delfosse">L. 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The number distributions of size for the products were compared to the original distributions. The 1.5-mm particles suffered limited breakage with some dust and a small amount of do/2 fragments produced. The amount of breakage was independent of volatile matter content, but greater with higher vitrinite materials. The behavior was consistent with the predictions of a model based on thermally induced stress. The manner of breakage of 2.5-mm particles of a very high VM coal and an anthracite were contradictory, with only some particles of the former breaking, but most of the latter. Increasing the pressure to 1.0 MPa led to less breakage with the high VM coal, suggesting that pressure from the volatiles is contributing to breakage. The degree of fragmentation under 1.0 MPa increased for the anthracite, which is consistent with the operation of the thermal stress model. 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Stanmore</name><affiliations><json:string>Department of Chemical Engineering University of Queensland 4072, Australia</json:string></affiliations></json:item><json:item><name>A. Brillard</name><affiliations><json:string>Laboratoire de Mathématiques Université de Haute-Alsace 4 rue des Frères Lumière 68200 Mulhouse, France</json:string></affiliations></json:item><json:item><name>P. Gilot</name><affiliations><json:string>Laboratoire Gestion des Risques et Environnement Ecole nationale Supérieure de Chimie de Mulhouse 25 rue de Chemnitz 68200 Mulhouse, France</json:string></affiliations></json:item><json:item><name>L. Delfosse</name><affiliations><json:string>Laboratoire Gestion des Risques et Environnement Ecole nationale Supérieure de Chimie de Mulhouse 25 rue de Chemnitz 68200 Mulhouse, France</json:string></affiliations></json:item></author><subject><json:item><lang><json:string>eng</json:string></lang><value>Fluidized beds</value></json:item></subject><articleId><json:string>80173</json:string></articleId><arkIstex>ark:/67375/6H6-JFBH7MRK-9</arkIstex><language><json:string>eng</json:string></language><originalGenre><json:string>Full-length article</json:string></originalGenre><abstract>Particles of four coals sereened to mean diameters (do) of 1.5 and 2.5 mm were subjected to rapid radiant heating under nitrogen and/or 5% oxygen, and the product particles were collected after some seconds. The number distributions of size for the products were compared to the original distributions. The 1.5-mm particles suffered limited breakage with some dust and a small amount of do/2 fragments produced. The amount of breakage was independent of volatile matter content, but greater with higher vitrinite materials. The behavior was consistent with the predictions of a model based on thermally induced stress. The manner of breakage of 2.5-mm particles of a very high VM coal and an anthracite were contradictory, with only some particles of the former breaking, but most of the latter. Increasing the pressure to 1.0 MPa led to less breakage with the high VM coal, suggesting that pressure from the volatiles is contributing to breakage. The degree of fragmentation under 1.0 MPa increased for the anthracite, which is consistent with the operation of the thermal stress model. The influence of oxygen on breakage in this case is determined by the volatile matter content.</abstract><qualityIndicators><score>8.211</score><pdfWordCount>3931</pdfWordCount><pdfCharCount>22459</pdfCharCount><pdfVersion>1.3</pdfVersion><pdfPageCount>7</pdfPageCount><pdfPageSize>612 x 792 pts (letter)</pdfPageSize><refBibsNative>true</refBibsNative><abstractWordCount>190</abstractWordCount><abstractCharCount>1182</abstractCharCount><keywordCount>1</keywordCount></qualityIndicators><title>Fragmentation of small coal particles under fluidized-bed combustor conditions</title><pii><json:string>S0082-0784(96)80173-1</json:string></pii><genre><json:string>research-article</json:string></genre><host><title>Symposium (International) on Combustion</title><language><json:string>unknown</json:string></language><publicationDate>1996</publicationDate><issn><json:string>0082-0784</json:string></issn><pii><json:string>S0082-0784(96)X8001-9</json:string></pii><volume>26</volume><issue>2</issue><pages><first>3269</first><last>3275</last></pages><genre><json:string>journal</json:string></genre></host><namedEntities><unitex><date><json:string>1996</json:string></date><geogName></geogName><orgName><json:string>France Particles</json:string></orgName><orgName_funder></orgName_funder><orgName_provider></orgName_provider><persName><json:string>Chirone</json:string><json:string>La Mure</json:string><json:string>Hiorns</json:string><json:string>Sundback</json:string><json:string>Flambant de Provence</json:string><json:string>Brown</json:string></persName><placeName><json:string>Mulhouse</json:string><json:string>France</json:string><json:string>Chemnitz</json:string></placeName><ref_url></ref_url><ref_bibl><json:string>[4]</json:string><json:string>[12]</json:string><json:string>Dakic et al.</json:string><json:string>Dacombe et al. [6]</json:string><json:string>Sundback et al. [2]</json:string><json:string>[11]</json:string><json:string>[8]</json:string><json:string>[17]</json:string><json:string>Chirone et al. [13]</json:string><json:string>[16]</json:string><json:string>[3]</json:string><json:string>[15]</json:string><json:string>[7]</json:string><json:string>Chirone et al.</json:string><json:string>[14]</json:string><json:string>Prins et al. [18]</json:string><json:string>[9]</json:string><json:string>[1,2]</json:string><json:string>[3,5,6]</json:string></ref_bibl><bibl></bibl></unitex></namedEntities><ark><json:string>ark:/67375/6H6-JFBH7MRK-9</json:string></ark><categories><inist><json:string>1 - sciences appliquees, technologies et medecines</json:string><json:string>2 - sciences biologiques et medicales</json:string><json:string>3 - sciences biologiques fondamentales et appliquees. psychologie</json:string></inist></categories><publicationDate>1996</publicationDate><copyrightDate>1996</copyrightDate><doi><json:string>10.1016/S0082-0784(96)80173-1</json:string></doi><id>495B17354B7DF6144D0F3DE89E1E4632F5101C64</id><score>1</score><fulltext><json:item><extension>pdf</extension><original>true</original><mimetype>application/pdf</mimetype><uri>https://api.istex.fr/document/495B17354B7DF6144D0F3DE89E1E4632F5101C64/fulltext/pdf</uri></json:item><json:item><extension>zip</extension><original>false</original><mimetype>application/zip</mimetype><uri>https://api.istex.fr/document/495B17354B7DF6144D0F3DE89E1E4632F5101C64/fulltext/zip</uri></json:item><istex:fulltextTEI uri="https://api.istex.fr/document/495B17354B7DF6144D0F3DE89E1E4632F5101C64/fulltext/tei"><teiHeader><fileDesc><titleStmt><title level="a" type="main" xml:lang="en">Fragmentation of small coal particles under fluidized-bed combustor conditions</title></titleStmt><publicationStmt><authority>ISTEX</authority><publisher>ELSEVIER</publisher><availability><p>©1996 Combustion Institute</p></availability><date>1996</date></publicationStmt><sourceDesc><biblStruct type="inbook"><analytic><title level="a" type="main" xml:lang="en">Fragmentation of small coal particles under fluidized-bed combustor conditions</title><author xml:id="author-0000"><persName><forename type="first">B.R.</forename><surname>Stanmore</surname></persName><affiliation>Department of Chemical Engineering University of Queensland 4072, Australia</affiliation></author><author xml:id="author-0001"><persName><forename type="first">A.</forename><surname>Brillard</surname></persName><affiliation>Laboratoire de Mathématiques Université de Haute-Alsace 4 rue des Frères Lumière 68200 Mulhouse, France</affiliation></author><author xml:id="author-0002"><persName><forename type="first">P.</forename><surname>Gilot</surname></persName><affiliation>Laboratoire Gestion des Risques et Environnement Ecole nationale Supérieure de Chimie de Mulhouse 25 rue de Chemnitz 68200 Mulhouse, France</affiliation></author><author xml:id="author-0003"><persName><forename type="first">L.</forename><surname>Delfosse</surname></persName><affiliation>Laboratoire Gestion des Risques et Environnement Ecole nationale Supérieure de Chimie de Mulhouse 25 rue de Chemnitz 68200 Mulhouse, France</affiliation></author><idno type="istex">495B17354B7DF6144D0F3DE89E1E4632F5101C64</idno><idno type="DOI">10.1016/S0082-0784(96)80173-1</idno><idno type="PII">S0082-0784(96)80173-1</idno><idno type="ArticleID">80173</idno></analytic><monogr><title level="j">Symposium (International) on Combustion</title><title level="j" type="abbrev">SICOM</title><idno type="pISSN">0082-0784</idno><idno type="PII">S0082-0784(96)X8001-9</idno><imprint><publisher>ELSEVIER</publisher><date type="published" when="1996"></date><biblScope unit="volume">26</biblScope><biblScope unit="issue">2</biblScope><biblScope unit="page" from="3269">3269</biblScope><biblScope unit="page" to="3275">3275</biblScope></imprint></monogr></biblStruct></sourceDesc></fileDesc><profileDesc><creation><date>1996</date></creation><langUsage><language ident="en">en</language></langUsage><abstract xml:lang="en"><p>Particles of four coals sereened to mean diameters (do) of 1.5 and 2.5 mm were subjected to rapid radiant heating under nitrogen and/or 5% oxygen, and the product particles were collected after some seconds. The number distributions of size for the products were compared to the original distributions. The 1.5-mm particles suffered limited breakage with some dust and a small amount of do/2 fragments produced. The amount of breakage was independent of volatile matter content, but greater with higher vitrinite materials. The behavior was consistent with the predictions of a model based on thermally induced stress. The manner of breakage of 2.5-mm particles of a very high VM coal and an anthracite were contradictory, with only some particles of the former breaking, but most of the latter. Increasing the pressure to 1.0 MPa led to less breakage with the high VM coal, suggesting that pressure from the volatiles is contributing to breakage. The degree of fragmentation under 1.0 MPa increased for the anthracite, which is consistent with the operation of the thermal stress model. The influence of oxygen on breakage in this case is determined by the volatile matter content.</p></abstract><textClass><keywords scheme="keyword"><list><head>article-category</head><item><term>Fluidized beds</term></item></list></keywords></textClass></profileDesc><revisionDesc><change when="1996">Published</change></revisionDesc></teiHeader></istex:fulltextTEI><json:item><extension>txt</extension><original>false</original><mimetype>text/plain</mimetype><uri>https://api.istex.fr/document/495B17354B7DF6144D0F3DE89E1E4632F5101C64/fulltext/txt</uri></json:item></fulltext><metadata><istex:metadataXml wicri:clean="Elsevier doc found" wicri:toSee="Elsevier, no converted or simple article"><istex:xmlDeclaration>version="1.0" encoding="utf-8"</istex:xmlDeclaration><istex:docType PUBLIC="-//ES//DTD journal article DTD version 5.0.1//EN//XML" URI="art501.dtd" name="istex:docType"></istex:docType><istex:document><article version="5.0" xml:lang="en" docsubtype="fla"><item-info><jid>SICOM</jid><aid>80173</aid><ce:pii>S0082-0784(96)80173-1</ce:pii><ce:doi>10.1016/S0082-0784(96)80173-1</ce:doi><ce:copyright type="unknown" year="1996">Combustion Institute</ce:copyright><ce:doctopics><ce:doctopic><ce:text>Fluidized beds</ce:text></ce:doctopic></ce:doctopics></item-info><head><ce:title>Fragmentation of small coal particles under fluidized-bed combustor conditions</ce:title><ce:author-group><ce:author><ce:given-name>B.R.</ce:given-name><ce:surname>Stanmore</ce:surname></ce:author><ce:affiliation id="aff1"><ce:textfn>Department of Chemical Engineering University of Queensland 4072, Australia</ce:textfn></ce:affiliation></ce:author-group><ce:author-group><ce:author><ce:given-name>A.</ce:given-name><ce:surname>Brillard</ce:surname></ce:author><ce:affiliation id="aff2"><ce:textfn>Laboratoire de Mathématiques Université de Haute-Alsace 4 rue des Frères Lumière 68200 Mulhouse, France</ce:textfn></ce:affiliation></ce:author-group><ce:author-group><ce:author><ce:given-name>P.</ce:given-name><ce:surname>Gilot</ce:surname></ce:author><ce:author><ce:given-name>L.</ce:given-name><ce:surname>Delfosse</ce:surname></ce:author><ce:affiliation id="aff3"><ce:textfn>Laboratoire Gestion des Risques et Environnement Ecole nationale Supérieure de Chimie de Mulhouse 25 rue de Chemnitz 68200 Mulhouse, France</ce:textfn></ce:affiliation></ce:author-group><ce:abstract id="ab1" class="author" xml:lang="en"><ce:abstract-sec><ce:simple-para>Particles of four coals sereened to mean diameters (<ce:italic>d</ce:italic><ce:inf loc="post">o</ce:inf>) of 1.5 and 2.5 mm were subjected to rapid radiant heating under nitrogen and/or 5% oxygen, and the product particles were collected after some seconds. The number distributions of size for the products were compared to the original distributions. The 1.5-mm particles suffered limited breakage with some dust and a small amount of <ce:italic>d</ce:italic><ce:inf loc="post">o</ce:inf>/2 fragments produced. The amount of breakage was independent of volatile matter content, but greater with higher vitrinite materials. The behavior was consistent with the predictions of a model based on thermally induced stress. The manner of breakage of 2.5-mm particles of a very high VM coal and an anthracite were contradictory, with only some particles of the former breaking, but most of the latter. Increasing the pressure to 1.0 MPa led to less breakage with the high VM coal, suggesting that pressure from the volatiles is contributing to breakage. The degree of fragmentation under 1.0 MPa increased for the anthracite, which is consistent with the operation of the thermal stress model. 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P. M. International Conference on Coal Science</sb:maintitle></sb:title><sb:date>1987</sb:date><sb:publisher><sb:name>Elsevier Science</sb:name><sb:location>Amsterdam</sb:location></sb:publisher></sb:edited-book><sb:pages><sb:first-page>818</sb:first-page></sb:pages></sb:host></sb:reference></ce:bib-reference></ce:bibliography-sec></ce:bibliography></tail></article></istex:document></istex:metadataXml><mods version="3.6"><titleInfo lang="en"><title>Fragmentation of small coal particles under fluidized-bed combustor conditions</title></titleInfo><titleInfo type="alternative" lang="en" contentType="CDATA"><title>Fragmentation of small coal particles under fluidized-bed combustor conditions</title></titleInfo><name type="personal"><namePart type="given">B.R.</namePart><namePart type="family">Stanmore</namePart><affiliation>Department of Chemical Engineering University of Queensland 4072, Australia</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">A.</namePart><namePart type="family">Brillard</namePart><affiliation>Laboratoire de Mathématiques Université de Haute-Alsace 4 rue des Frères Lumière 68200 Mulhouse, France</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">P.</namePart><namePart type="family">Gilot</namePart><affiliation>Laboratoire Gestion des Risques et Environnement Ecole nationale Supérieure de Chimie de Mulhouse 25 rue de Chemnitz 68200 Mulhouse, France</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">L.</namePart><namePart type="family">Delfosse</namePart><affiliation>Laboratoire Gestion des Risques et Environnement Ecole nationale Supérieure de Chimie de Mulhouse 25 rue de Chemnitz 68200 Mulhouse, France</affiliation><role><roleTerm type="text">author</roleTerm></role></name><typeOfResource>text</typeOfResource><genre type="research-article" displayLabel="Full-length article" authority="ISTEX" authorityURI="https://content-type.data.istex.fr" valueURI="https://content-type.data.istex.fr/ark:/67375/XTP-1JC4F85T-7">research-article</genre><originInfo><publisher>ELSEVIER</publisher><dateIssued encoding="w3cdtf">1996</dateIssued><copyrightDate encoding="w3cdtf">1996</copyrightDate></originInfo><language><languageTerm type="code" authority="iso639-2b">eng</languageTerm><languageTerm type="code" authority="rfc3066">en</languageTerm></language><abstract lang="en">Particles of four coals sereened to mean diameters (do) of 1.5 and 2.5 mm were subjected to rapid radiant heating under nitrogen and/or 5% oxygen, and the product particles were collected after some seconds. The number distributions of size for the products were compared to the original distributions. The 1.5-mm particles suffered limited breakage with some dust and a small amount of do/2 fragments produced. The amount of breakage was independent of volatile matter content, but greater with higher vitrinite materials. The behavior was consistent with the predictions of a model based on thermally induced stress. The manner of breakage of 2.5-mm particles of a very high VM coal and an anthracite were contradictory, with only some particles of the former breaking, but most of the latter. Increasing the pressure to 1.0 MPa led to less breakage with the high VM coal, suggesting that pressure from the volatiles is contributing to breakage. The degree of fragmentation under 1.0 MPa increased for the anthracite, which is consistent with the operation of the thermal stress model. The influence of oxygen on breakage in this case is determined by the volatile matter content.</abstract><subject><genre>article-category</genre><topic>Fluidized beds</topic></subject><relatedItem type="host"><titleInfo><title>Symposium (International) on Combustion</title></titleInfo><titleInfo type="abbreviated"><title>SICOM</title></titleInfo><genre type="journal" authority="ISTEX" authorityURI="https://publication-type.data.istex.fr" valueURI="https://publication-type.data.istex.fr/ark:/67375/JMC-0GLKJH51-B">journal</genre><originInfo><publisher>ELSEVIER</publisher><dateIssued encoding="w3cdtf">1996</dateIssued></originInfo><identifier type="ISSN">0082-0784</identifier><identifier type="PII">S0082-0784(96)X8001-9</identifier><part><date>1996</date><detail type="volume"><number>26</number><caption>vol.</caption></detail><detail type="issue"><number>2</number><caption>no.</caption></detail><extent unit="issue-pages"><start>1805</start><end>3449</end></extent><extent unit="pages"><start>3269</start><end>3275</end></extent></part></relatedItem><identifier type="istex">495B17354B7DF6144D0F3DE89E1E4632F5101C64</identifier><identifier type="ark">ark:/67375/6H6-JFBH7MRK-9</identifier><identifier type="DOI">10.1016/S0082-0784(96)80173-1</identifier><identifier type="PII">S0082-0784(96)80173-1</identifier><identifier type="ArticleID">80173</identifier><accessCondition type="use and reproduction" contentType="copyright">©1996 Combustion Institute</accessCondition><recordInfo><recordContentSource authority="ISTEX" authorityURI="https://loaded-corpus.data.istex.fr" valueURI="https://loaded-corpus.data.istex.fr/ark:/67375/XBH-HKKZVM7B-M">elsevier</recordContentSource><recordOrigin>Combustion Institute, ©1996</recordOrigin></recordInfo></mods><json:item><extension>json</extension><original>false</original><mimetype>application/json</mimetype><uri>https://api.istex.fr/document/495B17354B7DF6144D0F3DE89E1E4632F5101C64/metadata/json</uri></json:item></metadata><serie></serie></istex></record>Pour manipuler ce document sous Unix (Dilib)
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