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OALib Journal期刊
ISSN: 2333-9721
费用：99美元
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两相流中煤粉的燃烧机理及动力学特征
, PP. 33-39
Keywords: 两相流,煤粉,氧浓度,燃烧机理,动力学
Abstract:
？利用微型流化床动力学分析仪研究了两相流条件下无烟煤粉的燃烧反应机理和动力学特征,并与热重法所得结果进行比较分析。结果表明,当温度大于850℃时,煤粉燃烧机理发生了变化,燃烧气态产物的生成比例也随之改变;当气速大于0.10m/s时,气体扩散限制基本被消除,煤粉燃烧反应速率主要受界面化学反应控制;煤粉燃烧反应速率随着氧气分压的增大呈幂函数形式增长,且氧气分压对煤粉静置燃烧的影响更加显著。煤氧两相流燃烧的表观活化能与静置燃烧相比降低了49kj/mol,相同温度条件下两相流燃烧的界面化学反应阻力也明显小于热重法测试结果。
| [1] | 张保生,刘建忠,周俊虎,冯展管,岑可法.利用popescu法对煤燃烧反应机理的研究[j].中国机电工程学报,2006,26(15):68-72.(zhangbao-sheng,liujian-zhong,zhoujun-hu,fengzhan-guan,cenke-fa.popescumethodforcombustionkineticmechanismsofcoals[j].proceedingsofthecsee,2006,26(15):68-72.)
|
| [2] | smithiw.thecombustionratesofcoalchars:areview[c]//19thsymposiumoncombustion,1982:1045-1065.
|
| [3] | 谢克昌.煤的结构与反应性[m].北京:科学出版社,2002.(xieke-chang.coalstructureanditsreactivity[m].beijing:sciencepress,2002.)
|
| [4] | liz,zhangd,mal,loganw,niw.thenecessityofandpolicysuggestionsforimplementingalimitednumberoflargescale,fullyintegratedccsdemonstrationsinchina[j].energypolicy,2011,39(9):5347-5355.
|
| [5] | 巢清尘,陈文颖.碳捕获和存储技术综述及对我国的影响[j].地球科学进展,2006,21(3):291-298.(chaoqing-chen,chenwen-ying.thesummeryofcarboncaptureandstoragetechnologyanditsimpactonchina[j].advancesinearthscience,2006,21(3):291-298.)
|
| [6] | favree,bounaceurr,roizardd.ahybridprocesscombiningoxygenenrichedaircombustionandmembraneseparationforpost-combustioncarbondioxidecapture[j].seppuriftechnol,2009,68(1):30-36.
|
| [7] | 薛庆国,韩毅华,王静松,孔令坛.结合ccs的炉顶煤气循环—氧气鼓风高炉co2减排分析[j].钢铁,2011,46(8):1-6.(xueqing-guo,hanyi-hua,wangjing-song,kongling-tan.analysisofco2emissionreductionintopgasrecycling—oxygenblastfurnacecombinewithccs[j].ironandsteel,2011,46(8):1-6.)
|
| [8] | qic-l,zhangj-l,linx-h,liuq-y,wangx-l.investigationonpulverizedcoalcombustionbehaviorbynon-isothermicintegralthermogravimetrymethod[j].jironsteelint,2011,18(8):1-8.
|
| [9] | kizguts,yilmazs.characterizationandnon-isothermaldecompositionkineticsofsometurkishbituminouscoalsbythermalanalysis[j].fuelprocesstechnol,2003,85(1/2):103-111.
|
| [10] | damartzist,ioannidisg,zabaniotoua.simulatingthebehaviorofawiremeshreactorforolivekernelfastpyrolysis[j].chemengj,2008,136(2/3):320-330.
|
| [11] | 张军,汉春利,王夕华,徐益谦.煤显微组分富集物燃烧特性滴管炉试验研究[j].燃烧科学与技术,2002,8(5):403-406.(zhangjun,hanchun-li,wangxi-hua,xuyi-qian.experimentalstudyofdrop-tubefurnaceoncombustioncharacteristicsofmaceralconcentrates[j].journalofcombustionscienceandtechnology,2002,8(5):403-406.)
|
| [12] | cardjba,jonesar.droptubefurnacestudyofcoalcombustionandunburnedcarboncontentusingopticaltechniques[j].combustflame,1995,101(4):539-547.
|
| [13] | 余剑,朱剑虹,岳君容,孙立鑫,刘新华,许光文.微型流化床反应动力学分析仪的研制与应用[j].化工学报,2009,60(10):2669-2674.(yujian,zhujian-hong,yuejun-rong,sunli-xin,liuxin-hua,xuguang-wen.developmentandapplicationofmicrokineticanalyzerforfluidizedbedgas-solidreaction[j].journalofchemicalindustryandengineering(china),2009,60(10):2669-2674.)
|
| [14] | 刘联胜.燃烧理论与技术[m].北京:化学工业出版社,2008.(liulian-sheng.combustiontheoryandtechnology[m].beijing:chemicalindustrypress,2008.)
|
| [15] | 余剑,朱剑虹,郭凤,段正康,刘云义,许光文.生物质在微型流化床中热解动力学与机理[j].燃料化学学报,2010,38(6):666-672.(yujian,zhujian-hong,guofeng,duanzheng-kang,liuyun-yi,xuguang-wen.reactionkineticsandmechanismofbiomasspyrolysisinamicrofluidizedbedreactor[j].journaloffuelchemistryandtechnology,2010,38(6):666-672.)
|
| [16] | 胡荣祖,史启祯.热分析动力学[m].2版.北京:科学出版社,2001.(hurong-zu,shiqi-zhen.thermalanalysiskinetics[m].2nded.beijing:sciencepress,2001.)
|
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