|
OALib Journal期刊
ISSN: 2333-9721
费用：99美元
|
|
|
|
钾元素对生物质及其三组分热解的影响
, PP. 34-41
Keywords: 热重,稻壳,机械混合,浸渍,kcl
Abstract:
？采用机械混合法将kcl加入到纤维素、半纤维素、木质素以及稻壳和稻壳模拟物等生物质中,得到了一系列不同k含量的生物质样品,通过热重(tg)实验考察了k元素对生物质热解特性的影响.结果表明,k元素对生物质三组分热解特性的影响比较复杂,纤维素的最大热解失重速率随着kcl添加量的增加而降低,但kcl对半纤维素和木质素热解特性的影响不显著.无论是否添加kcl,模拟生物质的热解特性均可以认为是三组分热解的简单叠加.但酸预处理稻壳三组分间的稳定结构,导致其dtg曲线在300℃左右的热解峰由稻壳模拟物的尖峰变为肩峰,其热解焦炭收率也比稻壳模拟物的略低.此外,实验还采用浸渍法向酸预处理稻壳中添加了kcl.tg实验结果表明,k元素的存在对生物质热解具有一定的催化作用,但kcl的添加方式不同,生物质的热解特性有明显差别,生物质样品经机械混合添加kcl后,其热解焦炭收率呈下降趋势(纤维素除外),浸渍法添加的kcl导致酸预处理稻壳的最大热解失重速率和焦炭收率升高.
| [1] | shuttleworthp,budarinv,gronnowm,clarkjh,luquer.lowtemperaturemicrowave-assistedvsconventionalpyrolysisofvariousbiomassfeedstocks[j].jnatgaschem,2012,21(3):270-274.
|
| [2] | shojam,babatabarma,tavasolia,ataeia.productionofhydrogenandsyngasviapyrolysisofbagasseinadualbedreactor[j].jenergychem,2013,22(4):639-644.
|
| [3] | szabop,varhegyig,tillf,faixo.thermogravimetric/massspectrometriccharacterizationoftwoenergycrops,arundodonaxandmiscanthussinensis[j].janalapplpyrolysis,1996,36(2):179-190.
|
| [4] | eomiy,kimkh,kimjy,leesm,yeohm,choiig,choijw.characterizationofprimarythermaldegradationfeaturesoflignocellulosicbiomassafterremovalofinorganicmetalsbydiversesolvents[j].bioresourtechnol,2011,102(3):3437-3444.
|
| [5] | mayerza,apfelbachera,hornunga.acomparativestudyonthepyrolysisofmetal-andash-enrichedwoodandthecombustionpropertiesofthegainedchar[j].janalapplpyrolysis,2012,96(7):196-202.
|
| [6] | eomiy,kimjy,kimts,leesm,choid,choiig,choijw.effectofessentialinorganicmetalsonprimarythermaldegradationoflignocellulosicbiomass[j].bioresourtechnol,2012,104(1):687-694.
|
| [7] | wangxh,chenhp,wangj,xinf,yanghp.influencesofmineralmattersonbiomasspyrolysischaracteristics[j].jfuelchemtechnol,2008,36(6):679-683.
|
| [8] | bjoerkmane,stroembergb.releaseofchlorinefrombiomassatpyrolysisandgasificationconditions[j].energyfuels,1997,11(5):1026-1032.
|
| [9] | dieboldjp.aunified,globalmodelforthepyrolysisofcellulose[j].biomassbioenergy,1994,7(1/6):75-85.
|
| [10] | worasuwannarakn,sonobeat,tanthapanichakoonw.pyrolysisbehaviorsofricestraw,ricehuskandcorncobbytg-mstechnique[j].janalapplpyrolysis,2007,78(2):265-271.
|
| [11] | sunjx,sunxf,sunrc,suyq.fractionalextractionandstructuralcharacterizationofsugarcanebagassehemicelluloses[j].carbohydpolym,2004,56(2):195-204.
|
| [12] | yanghp,yanr,chenhp,leedh,zhengcg.characteristicsofhemicellulose,celluloseandligninpyrolysis[j].fuel,2007,86(12/13):1781-1788.
|
| [13] | brittpf,buchananiiiac,thomaskb,leesk.pyrolysismechanismsoflignin:surface-immobilizedmodelricehuskinvestigationofacid-catalyzedandfree-radicalreactionpathways[j].janalapplpyrolysis,1995,33:1-19.
|
| [14] | wangsr,liaoyf,wenlh,luozy,cenkf.catalysismechanismofpotassiumsaltduringrapidpyrolysisofcellulose[j].jfuelchemtechnol,2004,32(6):694-698.
|
| [15] | wuhx,lihb,fengyp,wangxb,zhaozl,hef.effectsofpotassiumonthepyrolysisofbiomasscomponentsbytg-ftiranalysis[j].jfuelchemtechnol,2013,41(8):950-957.
|
| [16] | nowakowskidj,jonesjm,brydsonrm,rossab.potassiumcatalysisinthepyrolysisbehaviourofshortrotationwillowcoppice[j].fuel,2007,86(15):2389-2402.
|
| [17] | knudsenjn,jensenpa,damjk.transformationandreleasetothegasphaseofcl,k,andsduringcombustionofannualbiomass[j].energyfuels,2004,18(5):1385-1399.
|
| [18] | raveendrank,ganesha,khilarkc.influenceofmineralmatteronbiomasspyrolysischaracteristics[j].fuel,1995,74(12):1812-1822.
|
| [19] | chenca,pakdelh,royc.productionofmonomericphenolsbythermochemicalconversionofbiomass:areview[j].bioresourtechnol,2001,79(3):277-299.
|
| [20] | nakamurat,kawamotoh,sakas.pyrolysisbehaviorofjapanesecedarwoodligninstudiedwithvariousmodeldimers[j].janalapplpyrolysis,2008,81(2):173-182.
|
| [21] | chenhz,liuly.unpollutedfractionationofwheatstrawbysteamexplosionandethanolextraction[j].bioresourtechnol,2007,98(3):666-676.
|
| [22] | saddawia,jonesjm,williamsa.influenceofalkalimetalsonthekineticsofthethermaldecompositionofbiomass[j].fuelprocesstechnol,2012,104(12):189-197.
|
| [23] | wangj,zhangmx,chenmq,minff,zhangsp,renzw,yanyj.catalyticeffectsofsixinorganiccompoundsonpyrolysisofthreekindsofbiomass[j].thermochimacta,2006,444(1):110-114.
|
Full-Text
|
|
Contact Us
service@oalib.com QQ:3279437679 
WhatsApp +8615387084133
|
|
