|
OALib Journal期刊
ISSN: 2333-9721
费用：99美元
|
|
|
|
基于碱金属和过渡金属修饰铁矿石载氧体的煤催化燃烧
, PP. 1179-1187
Keywords: 化学链燃烧,催化气化,铁矿石,钠,镍
Abstract:
？煤气化反应是煤化学链燃烧过程的控制步骤,其反应速率慢。采用碱金属na和过渡金属ni对铁矿石载氧体进行修饰,在流化床反应器上研究了na、ni负载量和反应温度对煤化学链催化燃烧的影响。结果表明,在920℃时,na-铁矿石的催化活性高于ni-铁矿石,随着na、ni负载量的增加,煤化学链燃烧的反应速率加快,气体反应产物浓度达到峰值的时间缩短,反应后期气体产物的衰减速率变大,整个反应期间co体积浓度明显减少,而co2、h2体积浓度增大。当na、ni负载量均为6%时,两者进行比较分析,ni在960℃时对煤化学链的催化燃烧效果最为显著,碳转化率高达92.7%,高于纯铁矿石约15.5%,而在800~920℃下,催化效果不明显;na在800~960℃对煤气化反应的催化效果均较显著。sem-edx分析显示,反应结束后,na-铁矿石载氧体表面na盐流失严重,而ni-铁矿石表面ni盐负载较好。
| [1] | richterh,knochek.reversibilityofcombustionprocesses[c]//efficiencyandcosting-secondlawanalysisofprocesses(acssymposiumseries).washingtondc:americanchemicalsociety,1983:71-85.
|
| [2] | mattissont,lyngfelta,chop.theuseofironoxideasanoxygencarrierinchemicalloopingcombustionofmethanewithinherentseparationofco2[j].fuel,2001,80(13):1953-1962.
|
| [3] | leionh,lyngfelta,johanssonm,jerndale,mattissont.theuseofilmeniteasanoxygencarrierinchemical-loopingcombustion[j].chemengresdes,2008,86(9):1017-1026.
|
| [4] | 顾海明,吴家桦,郝建刚,沈来宏,肖军.基于赤铁矿载氧体的串行流化床煤化学链燃烧试验[j].中国电机工程学报,2010,30(17):51-56.(guhai-ming,wujia-hua,haojian-gang,shenlai-hong,xiaojun.experimentsonchemicalloopingcombustionofcoalininterconnectedfluidizedbedusinghematiteasoxygencarrier[j].proceedingsofthecsee,2010,30(17):51-56.)
|
| [5] | azismm,jerndale,leionh,mattissont,lyngfelta.ontheevaluationofsyntheticandnaturalilmeniteusingsyngasasfuelinchemical-loopingcombustion(clc)[j].chemengresdes,2010,88(11):1505-1514.
|
| [6] | adanezj,cuadrata,abada,gaynp,dediegolf,garcia-labianof.ilmeniteactivationduringconsecutiveredoxcyclesinchemical-loopingcombustion[j].energyfuels,2010,24(2):1402-1413.
|
| [7] | cuadrata,abada,adanezj,dediegolf,garcia-labianof,gaynp.behaviorofilmeniteasoxygencarrierinchemical-loopingcombustion[j].fuelprocesstechnol,2012,94(1):101-112.
|
| [8] | moldenhauerp,rydnm,lyngfelta.testingofmineralsandindustrialby-productsasoxygencarriersforchemical-loopingcombustioninacirculatingfluidized-bed300wlaboratoryreactor[j].fuel,2012,93:351-363.
|
| [9] | 王保文,赵海波,郑瑛,柳朝晖,郑楚光.煤化学链燃烧技术的研究进展[j].动力工程学报,2011,31(7):544-550.(wangbao-wen,zhaohai-bo,zhengying,liuzhao-hui,zhengchu-guang.researchprogressinchemicalloopingcombustionofcoal[j].journalofchinesesocietyofpowerengineering,2011,31(7):544-550.)
|
| [10] | 刘黎明,赵海波,郑楚光.化学链燃烧方式中氧载体的研究进展[j].煤炭转化,2006,29(3):83-93.(liuli-ming,zhaohai-bo,zhengchu-guang.advancesonoxygencarriersofchemical-loopingcombustion[j].coalconversion,2006,29(3):83-93.)
|
| [11] | 孟磊,周敏,王芬.煤催化气化催化剂研究进展[j].煤气与热力,2010,30(4):18-22.(mengmin,zhoumin,wangfen.progressofresearchoncatalystforcatalyticgasificationofcoal[j].gasandheat,2010,30(4):18-22.)
|
| [12] | meijerr,kapteijnf,a.moulijnj.kineticsofthealkali-carbonatecatalysedgasificationofcarbon:3h2ogasification[j].fuel,1994,73(5):723-730.
|
| [13] | langrj.anioneffectsinalkali-catalysedsteamgasification[j].fuel,1986,65(10):1324-1329.
|
| [14] | mckeedw.mechanismsofthealkalimetalcatalysedgasificationofcarbon[j].fuel,1983,62(2):170-175.
|
| [15] | walkerpljr,matsumotos,hanzawat,muirat,ismailmk.catalysisofgasificationofcoal-derivedcokesandchars[j].fuel,1983,62(2):140-149.
|
| [16] | chandrasrivastavar,sinhaj,kumarsrivastavas,chandratripathis.nickelcatalysedsteamgasificationofcharsobtainedfromcoal-alkalireactionat600℃[j].fuel,2003,82(1):93-96.
|
| [17] | elligdl,laick,meaddw,longwelljp,peterswa.pyrolysisofvolatilearomatichydrocarbonsandn-heptaneovercalciumoxideandquartz[j].indengprocessdesdev,1985,24(4):1080-1087.
|
| [18] | wangj,jiangm,yaoy,zhangy,gaoj.steamgasificationofcoalcharcatalysedbyk2co3forenhancedproductionofhydrogenwithoutformationofmethane[j].fuel,2009,88(9):1572-1579.
|
| [19] | 翟学良,李纪标,史永宏.ni-海泡石催化剂的制备与微观形态[j].电子显微学报,1998,17(5):647-648.(zhaixue-liang,liji-biao,shiyong-hong.preparationandmorphologyofni-sepiolitecatalyst[j].journalofchineseelectronmicroscopysociety,1998,17(5):647-648.)
|
| [20] | berguerandn,lyngfelta.designandoperationofa10kwthchemical-loopingcombustorforsolidfuels-testingwithsouthafricancoal[j].fuel,2008,87(12):2713-2726.
|
| [21] | 杨景标,蔡宁生,李振山.几种金属催化褐煤焦水蒸气气化的试验研究[j].中国电机工程学报,2007,27(26):7-12.(yangjing-biao,caining-sheng,lizhen-shan.experimentalstudyonsteamgasificationoflignitecharcatalysedbyseveralmetals[j].proceedingsofthecsee,2007,27(26):7-12.)
|
| [22] | miurak,aimim,naitot.steamgasificationofcarbon:effectofseveralmetalsontherateofgasificationandtheratesofcoandco2formation[j].fuel,1986,65(3):407-411.
|
| [23] | lic-z,sathec,kershawjr,pangy.fatesandrolesofalkaliandalkalineearthmetalsduringthepyrolysisofavictorianbrowncoal[j].fuel,2000,79(3/4):427-438.
|
| [24] | 潘英刚,严惠珍,曹建功.碱金属碳酸盐在煤气化中的催化作用(ii)在c-h2o反应中na2co3的催化活性[j].燃料化学学报,1981,9(3):259-265.(panying-gang,yanhui-zhen,caojian-gong.effectsincarbonateofalkalimetal-catalysedsteamgasification[j].journaloffuelchemistryandtechnology,1981,9(3):259-265.)
|
| [25] | 徐振刚,刘国海,于涌年.焦作无烟煤催化气化反应动力学研究[j].煤炭学报,1987,12(1):86-95.(xuzhen-gang,liuguo-hai,yuyong-nian.kineticsofalkalinecatalysedsteamgasificationusingjiaozuoanthracite[j].journalofchinacoalsociety,1987,12(1):86-95.)
|
| [26] | 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.(yangjing-biao,caining-sheng,zhangyan-wen.effectofcatalystloadingsonthegasificationreactivityofalignitecharwithsteam[j].journaloffuelchemistryandtechnology,2008,36(1):15-22.)
|
| [27] | lópez-peinadoa,carrasco-marínf,rivera-utrillaj,moreno-castillac.steamgasificationofalignitecharcatalysedbymetalsfromchromiumtozinc[j].fuel,1992,71(1):105-108.
|
| [28] | ozaway,tochiharay.catalyticdecompositionofammoniainsimulatedcoal-derivedgasoversupportednickelcatalysts[j].cataltoday,2011,164(1):528-532.
|
Full-Text
|
|
Contact Us
service@oalib.com QQ:3279437679 
WhatsApp +8615387084133
|
|
