|
OALib Journal期刊
ISSN: 2333-9721
费用：99美元
|
|
|
|
平朔煤热解过程中pahs的释放特性
, PP. 1281-1286
Keywords: 平朔煤,热解,多环芳烃,py-gc-ms
Abstract:
？利用热解-气质联用仪(py-gc-ms)研究了平朔煤在不同热解温度下多环芳烃(phas)的释放规律,并探讨了该过程中pahs的生成机理。研究结果表明,16种pahs的生成总量随着热解温度的升高先增大后减少,在800℃达到最大值。且pahs环数分布规律对热解温度具有显著的依赖性,不同环数的pahs,其最大生成量时所对应的热解温度亦不同。随着热解温度的升高,煤结构中的桥键、芳香环上的脂肪侧链以及较难断裂的甲基、酚羟基等依次断裂,使得pahs的生成量不断增加,当温度升高至1000、1200℃时,伴随着缩合反应加剧,大环pahs的生成量继续增加。由总体趋势看出,平朔煤大分子网络结构的热裂解主要发生在600~800℃,热解缩合反应主要发生在高温下。平朔煤热解过程中的pahs除小部分来自煤中可萃取的芳烃结构挥发外,主要来自煤中大分子芳香结构裂解以及热解生成自由基碎片的高温聚合。
| [1] | 戴朝霞,陈振翔,王格慧,王连生.典型城市大气颗粒物中多环芳烃的污染研究[j].环境科学与技术,2006,29(2):29-31.(daizhao-xia,chenzhen-xiang,wangge-hui,wanglian-sheng.studyonpolycyclicaromatichydrocarbonsinaerosolofrepresentativecities[j].environmentalscienceandtechnology,2006,29(2):29-31.)
|
| [2] | 许士奋,蒋新,汪涟生,全燮,martensd.长江和辽河沉积物中的多环芳烃类污染物[j].中国环境科学,2000,20(2):128-131.(xushi-fen,jiangxin,wanglian-sheng,quanxie,martensd.polycyclicaromatichydrecarbons(pahs)pollutantsinsedimentsoftheyangtseriverandtheliaoheriver[j].chinaenvironmentalscience,2000,20(2):128-131.)
|
| [3] | 刘大锰,刘志华,李运勇.煤中有害物质及其对环境的影响研究进展[j].地球科学进展,2002,17(6):840-847.(liuda-meng,liuzhi-hua,liyun-yong.advancesinstudiesofharmfulsubstancesincoalandtheirimpactontheenvironment[j].advanceinearthsciences,2002,17(6):840-847.)
|
| [4] | 董洁,李凡,谢克昌.煤转化过程中多环芳烃排放的研究现状[j].现代化工,2009,29(s1):344-346.(dongjie,lifan,xieke-chang.progressinformationofpolycyclicaromatichydrocarbonsduringcoalconversionprocess[j].modernchemicalindustry,2009,29(s1):344-346.)
|
| [5] | 何选明,黄鹂,韩军,李振东,李耀拉.炼焦煤中多环芳烃的分布特性研究[j].煤炭转化,2009,32(4):70-73.(hexuan-ming,huangli,hanjun,lizhen-dong,liyao-la.distributioncharacteristicofpolycyclicaromatichydrocarbonsincokingcoal[j].coalconversion,2009,32(4):70-73.)
|
| [6] | 刘淑琴,庞旭林,王媛媛,张尚军,鲍鹏程,党金莉.不同煤种热解多环芳烃的生成分布特征研究[j].煤炭转化,2011,34(1):1-6.(liushu-qin,pangxu-lin,wangyuan-yuan,zhangshang-jun,baopeng-cheng,dangjin-li.studyonthedistributioncharacteristicofpolycyclicaromatichydrocarbonsduringpyrolysisofdifferentranksofcoal[j].coalconversion,2011,34(1):1-6.)
|
| [7] | 孙庆雷,李文,陈皓侃,李保庆.神木煤显微组分热解和加氢热解的焦油组成[j].燃料化学学报,2005,33(4):412-415.(sunqing-lei,liwen,chenhao-kan,libao-qing.compositionsofcoaltarfrompyrolysisandhydropyrolysisofshenmucoalmacerals[j].journaloffuelchemistryandtechnology,2005,33(4):412-415.)
|
| [8] | dongj,lif,xiekc.studyonthesourceofpolycyclicaromatichydrocarbons(pahs)duringcoalpyrolysisbypy-gc-ms[j].jhazardmater,2012,243:80-85.
|
| [9] | 罗孝俊.珠江三角洲河流、河口和邻近南海海域水体和沉积物中多环芳烃和有机氯农药研究[d].广州:中国科学院广州地球化学研究所,2004.(luoxiao-jun.astudyofpahsandocpsonwaterbodyandsedimentsofriversinpearlriverdelta,pearlriverestuaryandoffshoreofsouthchinasea[d].guangzhou:guangzhouinstituteofgeochemistry,chineseacademyofsciences,2004.)
|
| [10] | dinolag,dejongw,spliethoffh.tg-ftircharacterizationofcoalandbiomasssinglefuelsandblendsunderslowheatingrateconditions:partitioningofthefuel-boundnitrogen[j].fuelprocesstechnol,2010,91(1):103-115.
|
| [11] | 焦海丽.原煤中可抽提多环芳烃(pahs)及其热解特性[d].太原:太原理工大学,2010.(jiaohai-li.thepahsintherawcoalextractsandtheirpyrolysisproperties[d].taiyuan:taiyuanuniversityoftechnology,2010.)
|
| [12] | 高晋生.煤的热解、炼焦和煤焦油加工[m].北京:化学工业出版社,2010.(gaojin-sheng.coalpyrolysis,cokingandcoaltarprocessing[m].beijing:chemicalindustrypress,2010.)
|
| [13] | 尤孝方.燃烧过程中多环芳烃的生成与数值模拟[d].浙江:浙江大学,2006.(youxiao-fang.theformationofpolycyclicaromatichydrocarbons(pahs)fromcombustionprocessesanditsmodelling[d].zhejiang:zhejianguniversity,2006.)
|
| [14] | 何选明.煤化学[m].2版.北京:冶金工业出版社,2010.(hexuan-ming.coalchemistry[m].2nded.beijing:metallurgicalindustrypress,2010.)
|
| [15] | raja,pradaidc,ameraa,chungsh.areactionmechanismforgasolinesurrogatefuelsforlargepolycyclicaromatichydrocarbons[j].combustflame,2012,159(2):500-515.
|
| [16] | comandinia,malewickit,brezinskyk.chemistryofpolycyclicaromatichydrocarbonsformationfromphenylradicalpyrolysisandreactionofphenylandacetylene[j].jphyschema,2012,116(10):2409-2434.
|
| [17] | shuklab,koshim.comparativestudyonthegrowthmechanismsofpahs[j].combustflame,2012,158(2):369-375.
|
| [18] | 吴爱坪,潘铁英,史新梅,周丽芳,刘瑞民,张德祥,高晋生.中低阶煤热解过程中自由基的研究[j].煤炭转化,2012,35(2):1-5.(wuai-ping,pantie-ying,shixin-mei,zhouli-fang,liurui-min,zhangde-xiang,gaojin-sheng.studyonfreeradicalsinlowrankcoalpyrolysisprocess[j].coalconversion,2012,35(2):1-5.)
|
| [19] | 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.)
|
| [20] | 赵文昌,程金平,谢海赟,马英歌,王文华.环境中多环芳烃(pahs)的来源与监测分析方法[j].环境科学与技术,2006,29(3):105-107.(zhaowen-chang,chengjin-ping,xiehai-yun,maying-ge,wangwen-hua.pahs:sources,pathwayandtheirmonitoringandanalysis[j].environmentalscience&technology,2006,29(3):105-107.)
|
| [21] | 刘淑琴,靳志伟,张尚军.大尺度煤热解多环芳烃生成及排放规律[j].煤炭学报,2012,37(6):1039-1045.(liushu-qin,jinzhi-wei,zhangshang-jun.formationanddistributionofpolycyclicaromatichydrocarbonsduringlargesizecoalpyrolysis[j].journalofchinacoalsociety,2012,37(6):1039-1045.)
|
| [22] | 王连生.有机污染化学[m].北京:高等教育出版社,2004.(wanglian-sheng.chemistryoforganicpollution[m].beijing:highereducationpress,2004.)
|
| [23] | wiserwh,hillgr,kertamusnj.kineticstudyofpyrolysisofhighvolatilebituminouscoal[j].indengchemprocessdesdev,1967,6(1):133-138.
|
Full-Text
|
|
Contact Us
service@oalib.com QQ:3279437679 
WhatsApp +8615387084133
|
|
