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OALib Journal期刊
ISSN: 2333-9721
费用：99美元
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k2co3修饰的铁锆复合氧载体-煤焦化学链气化制氢反应特性研究
, PP. 385-392
Keywords: 氧载体,碳酸钾,煤焦,产氢量
Abstract:
？以k2co3修饰的fe2o3和zro2复合型氧化物为氧载体(k3-fe70zr30),在固定床装置上考察了温度和原料配比对煤焦化学链制氢过程中产气率及组成的影响。程序升温实验结果表明,煤焦与氧载体500℃时开始反应,温度高于750℃时反应速率快速增大;而还原态氧载体与水蒸气400℃时开始反应,当温度高于500℃时出口氢气浓度明显增大。恒温实验表明,随温度升高,产品气中co/co2体积比增大,导致产氢量降低。随煤焦与氧载体比例增加,产品气体中co/co2体积比增加,而产氢量先增大后降低,其最大值可达1.734l/g。k3-fe70zr30氧载体在前两次循环能维持良好的反应活性,但在第3次循环反应中活性降低,而重新添加k2co3之后氧载体活性恢复,表明氧载体活性降低主要是由于k2co3的流失所致。
| [1] | 徐振刚,吴春来.煤气化制氢技术[j].低温与特气,2000,18(6):28-31.(xuzhen-gang,wuchun-lai.technologyofgasificationforhydrogenproductionbycoal[j].jlowtempspecgases,2000,18(6):28-31.)
|
| [2] | 谢继东,李文华,陈亚飞.煤制氢发展现状[j].洁净煤技术,2007,13(2):77-81.(xieji-dong,liwen-hua,chenya-fei.developmentstatusofhydrogenproductionfromcoal[j].jcleancoaltechnol,2007,13(2):77-81.)
|
| [3] | 任相坤,袁明,高聚忠.神华煤制氢技术发展现状[j].煤质技术,2006,1:4-7.(renxiang-kun,yuanming,gaoju-zhong.developmentstatusofthetechnologyforhydrogenproductionfromcoalinshenhua[j].jcoalqualtechnol,2006,1:4-7.)
|
| [4] | shokoe,mclellanb,dicksal,dinizdacostajc.hydrogenfromcoal:productionandutilisationtechnologies[j].jcoalgeol,2006,65(3):213-222.
|
| [5] | zengl,hef,lif,fanl.coal-directchemicalloopinggasificationforhydrogenproduction:reactormodelingandprocesssimulation[j].energyfuels,2012,26(6):3680-3690.
|
| [6] | fanl,lif,ramkumars.utilizationofchemicalloopingstrategyincoalgasificationprocesses[j].particuology,2008,6(3):131-142.
|
| [7] | chiesap,lozzag,malandrinoa,romanom,piccolov.three-reactorschemicalloopingprocessforhydrogenproduction[j].intjhydrogenenergy,2008,33(9):2233-2245.
|
| [8] | gnanapragasamnv,reddybv,rosenma.hydrogenproductionfromcoalusingcoaldirectchemicalloopingandsyngaschemicalloopingcombustionsystems:assessmentofsystemoperationandresourcerequirements[j].intjhydrogenenergy,2009,34(6):2606-2615.
|
| [9] | yangj,cain,liz.hydrogenproductionfromthesteam-ironprocesswithdirectreductionofironoxidebychemicalloopingcombustionofcoalchar[j].energyfuels,2008,22(4):2570-2579.
|
| [10] | yuz,lic,fangy,huangj,wangz.reductionrateenhancementsforcoaldirectchemicalloopingcombustionwithanironoxideoxygencarrier[j].energyfuels,2012,26(4):2505-2511.
|
| [11] | yuz,lic,jingx,zhangq,fangy,zhaoj,huangj.effectsofco2atmosphereandk2co3additiononthereductionreactivity,oxygentransportcapacity,andsinteringofcuoandfe2o3oxygencarriersincoaldirectchemicalloopingcombustion[j].energyfuels,2013,27(5):2703-2711.
|
| [12] | 余钟亮,李春玉,景旭亮,丁亮,房倚天,黄戒介.碳酸钾催化的铁基氧载体煤催化化学链燃烧[j].燃料化学学报,2013,41(7):826-831.(yuzhong-liang,lichun-yu,jingxu-liang,dingliang,fangyi-tian,huangjie-jie.catalyticchemicalloopingcombustionofcoalwithiron-basedoxygencarrierpromotedbyk2co3[j].jfuelchemtechnol,2013,41(7):826-831.)
|
| [13] | yuz,lic,jingx,zhangq,wangz,fangy,huangj.catalyticchemicalloopingcombustionofcarbonwithaniron-basedoxygencarriermodifiedbyk2co3:catalyticmechanismandmulticycletests[j].fuelprocesstechnol,inpress.
|
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