|
OALib Journal期刊
ISSN: 2333-9721
费用：99美元
|
|
|
|
氧化钙对流化床燃煤飞灰中砷的淋滤特性影响
, PP. 534-538
Keywords: 砷,流化床,氧化钙,淋滤特性
Abstract:
？在实验室小型流化床实验装置上，利用添加氧化钙研究了原煤中钙硫比变化对燃煤过程中砷在飞灰中的富集规律和飞灰中砷的浸出特性的影响。实验结果表明，增加钙硫比能有效促进砷在飞灰中富集，降低砷的排放。砷与氧化钙的反应受制于钙的硫化反应控制。飞灰中砷的浸出与滤液ph值关系显著，碱性飞灰导致滤液ph值增大，能有效抑制飞灰中砷的浸出。碱性飞灰中砷的浸出历程为飞灰中砷在短时间内快速溶出；随着滤液ph值增大，溶出的砷与钙发生二次反应形成钙砷化合物沉淀，降低滤液中砷浓度。
| [1] | tianh,wangy,xuez,quy,chaif,haoj.atmosphericemissionestimationofhg,asandsefromcoal-firedpowerplantsinchina,2007[j].scitotalenviron,2011,409(16):3078-3081.
|
| [2] | 雒昆利,张新民,陈昌和,陆毅伦.我国燃煤电厂砷的大气排放量初步估算[j].科学通报,2004,49(19):2014-2019.(luokun-li,zhangxin-min,chenchang-he,luyi-lun.preliminarystudyonestimationofarsenicemissionfromcoal-firedpowerplantinchina[j].chinesesciencebulletin,2004,49(19):2014-2019.)
|
| [3] | yudovichye,ketrismp.arsenicincoal:areview[j].intjcoalgeol,2005,61(3/4):141-196.
|
| [4] | 王全海,刘迎晖,张军营,邱建荣,郑楚光.cao对烟气中砷的形态和分布的影响[j].环境科学学报,2003,23(4):549-551.(wangquan-hai,liuying-hui,zhangjun-ying,qiujian-rong,zhengchu-guang.effectofcaoonthespeciationofarsenicinfluegases[j].actascientiaecircumstantiae,2003,23(4):549-551.)
|
| [5] | contrerasml,arosteguijm,armestol.arsenicinteractionsduringco-combustionprocessesbasedonthermodynamicequilibriumcalculations[j].fuel,2009,88(3):539-546.
|
| [6] | huffmangp,hugginsfe,shahn,zhaoj.speciationofarsenicandchromiumincoalandcombustionashbyxafsspectroscopy[j].fuelprocesstechnol,1994,39(1/3):47-62.
|
| [7] | hugginsfe,shahn,huffmangp,robertsonjd.xafsspectroscopiccharacterizationofelementsincombustionashandfineparticulatematter[j].fuelprocesstechnol,2000,65-66:203-218.
|
| [8] | hugginsfe,huffmangp.x-rayabsorptionfinestructure(xafs)spectroscopiccharacterizationofemissionfromcombustionoffossilfuels[j].intjsocmaterengresour,2002,10(1):1-13.
|
| [9] | mahulis,agnihotrir,chauks,ghosh-dastidara,fanls.mechanismofarsenicsorptionbyhydratedlime[j].environscitechnol,1997,31(11):3226-3231.
|
| [10] | liy,tongh,zhouy,liy,xux.simultaneousremovalofso2andtraceas2o3fromfluegas:mechanism,kineticsstudy,andeffectofmaingasesonarseniccapture[j].environscitechnol,2007,41(8):2894-2900.
|
| [11] | jegadeesang,al-abedsr,pintop.influenceoftracemetaldistributiononitsleachabilityfromcoalflyash[j].fuel,2008,87(10/11):1887-1893.
|
| [12] | wangt,wangj,tangy,shih,ladwigk.leachingcharacteristicofarsenicandseleniumfromcoalflyash:roleofcalcium[j].energyfuels,2009,23(6):2959-2966.
|
| [13] | iwashitaa,sakaguchiy,nakajimat,takanashih,ohkia,kambaras.leachingcharacteristicsofboronandseleniumforvariouscoalflyash[j].fuel,2005,84(5):479-485.
|
| [14] | lowf,zhangl.arsenicemissionsandspeciationintheoxy-fuelflyashcollectedfromlab-scaledrop-tubefurnace[j].processcombustinst,2013,34(2):2877-2884.
|
| [15] | sterlingro,helblejj.reactionofarsenicvaporspecieswithflyashcompounds:kineticsandspeciationofthereactionwithcalciumsilicates[j].chemosphere,2003,51(10):1111-1119.
|
Full-Text
|
|
Contact Us
service@oalib.com QQ:3279437679 
WhatsApp +8615387084133
|
|
