|
OALib Journal期刊
ISSN: 2333-9721
费用：99美元
|
|
|
|
fe2o3/atp载氧体制备及煤化学链燃烧性能研究
, PP. 167-176
Keywords: 煤,化学链燃烧,铁基载氧体,凹凸棒,载体,流化床
Abstract:
？以天然凹凸棒(atp)为载体,分别利用机械混合法、浸渍法和溶胶-凝胶法制备了3种铁基复合载氧体。利用x射线衍射(xrd)、能谱(eds)、n2-吸附脱附等温线等对其进行物化表征,并在900℃流化床中考察其煤化学链燃烧反应性能。结果表明,atp能显著增加载氧体比表面积和抗磨损能力,并对煤转化过程有催化作用,其与fe2o3的协同作用使初始碳转化速率显著提高。溶胶-凝胶法制备的u-fe4atp6表面ca元素含量为4.3%,比表面积为4.9207m2/g,均高于其他两种载氧体,表现出更高的催化性能和反应活性:初始碳转化速率为0.168min-1,平均co2浓度为98.6%,燃烧效率为98.7%。20次反应后,u-fe4atp6催化性能略有降低,对应的初始碳转化速率降至0.108min-1,停留时间t95延长到18min;且能维持较高的反应活性,对应的co2捕集效率和燃烧效率分别稳定在98.6%和96.7%。
| [1] | lix,hayashiji,licz.volatilisationandcatalyticeffectsofalkaliandalkalineearthmetallicspeciesduringthepyrolysisandgasificationofvictorianbrowncoal.partvii.ramanspectroscopicstudyonthechangesincharstructureduringthecatalyticgasificationinair[j].fuel,2006,85(10):1509-1517.
|
| [2] | 彭康,王亦飞,金渭龙,吴超琦,王辅臣.硝酸钙对内蒙古褐煤热解和气化特性的影响[j].燃料化学学报,2013,41(2):144-150.(pengkang,wangyi-fei,jinwei-long,wuchao-qi,wangfu-chen.effectsofcalciumnitrateonpyrolysisandgasificationbehavioroflignitefrominnermongolia[j].jfuelchemtechnol,2013,41(2):144-150.)
|
| [3] | adanezj,abada,garcia-labianof,gayanp,dediegolf.progressinchemical-loopingcombustionandreformingtechnologies[j].progenergycombust,2012,38(2):215-282.
|
| [4] | 王保文,赵海波,郑瑛,柳朝晖,郑楚光,晏蓉.惰性载体al2o3对fe2o3及cuo氧载体煤化学链燃烧的影响[j].中国电机工程学报,2011,31(32):53-61.(wangbao-wen,zhaohai-bo,zhengying,liuchao-hui,zhengchu-guang,yanrong.effectofinertsupportal2o3onthechemicalloopingcombustionofcoalwithfe2o3andcuo-basedoxygencarrier[j].proccsee,2011,31(32):53-61.)
|
| [5] | guoq,chengy,liuy,jiaw,ryuh.coalchemicalloopinggasificationforsyngasgenerationusinganiron-basedoxygencarrier[j].indengchemres,2014,53(1):78-86.
|
| [6] | 程煜,刘永卓,田红景,郭庆杰.铁基复合载氧体煤化学链气化反应特性及机理[j].化工学报,2013,64(7):2587-2595.(chengyu,liuyong-zhuo,tianhong-jing,guoqing-jie.chemical-loopinggasificationreactioncharacteristicsandmechanismofcoalandfe-basedcompositeoxygencarriers[j].ciescj,2013,64(7):2587-2595.)
|
| [7] | hossainmm,delasahi.chemical-loopingcombustion(clc)forinherentco2separations-areview[j].chemengsci,2008,63(18):4433-4451.
|
| [8] | caojl,shaogs,wangy,liuy,yuanzy.cuocatalystssupportedonattapulgiteclayforlow-temperaturecooxidation[j].catalcommun,2008,9(15):2555-2559.
|
| [9] | adanezj,dediegolf,garcialabinaof,gayanp,abada,palaciosjm.selectionofoxygencarriersforchemicalloopingcombustion[j].energyfuels,2004,18(2):371-377.
|
| [10] | zhangj,guoq,liuy,chengy.preparationandcharacterizationoffe2o3/al2o3usingthesolutioncombustionapproachforchemicalloopingcombustion[j].indengchemres,2012,51(39):12773-12781.
|
| [11] | 梅道锋,赵海波,马兆军,郑楚光.fe2o3/al2o3氧载体制备方法的研究[j].燃料化学学报,2012,40(7):795-802.(meidao-feng,zhaohai-bo,mazhao-jun,zhengchu-guang.preparationmethodstudyonfe2o3/al2o3oxygencarrier[j].jfuelchemtechnol,2012,40(7):795-802.)
|
| [12] | astmd5757-00,standardtestmethodfordeterminationofattritionandabrasionofpowderedcatalystsbyairjets[s].
|
| [13] | mastelloneml,arenau.carbonattritionduringthecirculatingfluidizedbedcombustionofapackaging-derivedfuel[j].combustflame,1999,117(3):562-573.
|
| [14] | 杨景标,蔡宁生,张彦文.催化剂添加量对褐煤焦水蒸气气化反应性的影响[j].燃料化学学报,2008,36(1):15-22.(yangjb,cains,zhangyw.effectofcatalystloadingsonthegasificationreactivityofalignitecharwithsteam[j].jfuelchemtechnol,2008,36(1):15-22.)
|
Full-Text
|
|
Contact Us
service@oalib.com QQ:3279437679 
WhatsApp +8615387084133
|
|
