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OALib Journal期刊
ISSN: 2333-9721
费用：99美元
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超临界水中钾对甲醛降解过程影响的研究
, PP. 302-308
Keywords: 钾成分,甲醛,超临界水气化,影响规律
Abstract:
？为掌握生物质中钾对生物质超临界水降解过程的影响,选择生物质气化转化过程中生成的重要小分子中间产物甲醛作为研究对象,研究不同工艺条件下(反应温度400～650℃、压力23～29mpa、停留时间4～12s),单一钾成分(khco3/k2co3/kcl)或混合钾成分(khco3、k2co3、kcl)对甲醛超临界水降解气体产物的影响。结果表明,khco3、k2co3、kcl、混合钾均降低了气体产物中co的体积分数,提高了co2的体积分数,但kcl的影响程度弱于其他三种钾成分。此外,由于不同钾成分均不利于气体产物中co和h2体积分数的提高,从而使得气体产物的热值降低。khco3、k2co3、kcl、混合钾均降低了h2、co、co2的产率以及气化率,其对h2产率以及气化率的抑制程度从大到小依次为:混合钾、khco3、k2co3、kcl,且提高反应温度、延长反应停留时间时抑制气体生成的作用相对越明显。而当反应压力改变时,钾成分对h2产率及气化率的影响程度变化较小。较高反应温度、较高反应压力、较长停留时间时,混合钾中各成分出现协同作用,明显抑制了气体产物的生成。
| [1] | 于洁,肖宏.生物质制氢技术研究进展[j].中国生物工程,2006,26(5):107-112.(yujie,xiaohong.advanceintechnologiesofhydrogenproductionfrombiomass[j].chinabiotechnology,2006,26(5):107-112.)
|
| [2] | guolj,lvyj,zhangxm,jicm,guany,peiax.hydrogenproductionbybiomassgasificationinsupercriticalwater:asystematicexperimentalandanalyticalstudy[j].cataltoday,2007,129(3):275-286.
|
| [3] | krusea.supercriticalwatergasification[j].biofuelbioprodbior,2008,2(5):415-437.
|
| [4] | madeno?lutg,kurts,sagla?mm,yvkselm,gökkayad,ballicel.hydrogenproductionfromsomeagriculturalresiduesbycatalyticsubcriticalandsupercriticalwatergasification[j].jsupercritfluid,2012,76:22-28.
|
| [5] | d'jesúsp,boukisn,czarnetzkibk,dinjuse.gasificationofcornandclovergrassinsupercriticalwater[j].fuel,2006,85(7):1032-1038.
|
| [6] | aidatm,shiraishin,kubom,watanabem,smithrl.reactionkineticsofd-xyloseinsub-andsupercriticalwater[j].jsupercritfluid,2010,55(1):208-216.
|
| [7] | sinaga,krusea,schwarzkopfv.keycompoundsofthehydropyrolysisofglucoseinsupercriticalwaterinthepresenceofk2co3[j].indengchemres,2003,45(5):3516-3521.
|
| [8] | watanabem,osadam,inomatah,araik,krusea.acidityandbasicityofmetaloxidecatalystsforformaldehydereactioninsupercriticalwaterat673k[j].applcatala-gen,2003,245(2):333-341.
|
| [9] | osadam,watanabem,suek,adschirit,araik.waterdensitydependenceofformaldehydereactioninsupercriticalwater[j].jsupercritfluid,2004,28(2):219-224.
|
| [10] | 张国妮,张军,徐益谦.超临界水中甲醛气化的实验研究[j].西安交通大学学报,2008,42(3):372-376.(zhangguo-ni,zhangjun,xuyi-qian.experimentalresearchonformaldehydegasificationinsupercriticalwater[j].journalofxi'anjiaotonguniversity,2008,42(3):372-376.)
|
| [11] | ohnok,maedas.globalreactionroutemappingonpotentialenergysurfacesofformaldehyde,formicacid,andtheirmetal-substitutedanalogues[j].jphyschema,2006,110(28):8933-8941.
|
| [12] | raveendrank,ganesha,khilarkc.influenceofmineralmatteronbiomasspyrolysischaracteristics[j].fuel,1995,74(12):1812-1822.
|
| [13] | vamvukad,troulinoss,kastanakie.theeffectofmineralmatteronthephysicalandchemicalactivationoflowrankcoalandbiomassmaterials[j].fuel,2006,85(12-13):1763-1771.
|
| [14] | blasicd,brancac,d'erricog.degradationcharacteristicsofstrawandwashedstraw[j].thermochimacta,2000,364(1-2):133-142.
|
| [15] | 赵亮,张军,盛昌栋,张永春,丁启忠,王坤,刘杨先.内在钾元素对玉米芯超临界水气化制氢过程的影响[j].西安交通大学学报,2011,45(7):15-21.(zhaoliang,zhangjun,shengchang-dong,zhangyong-chun,dingqi-zhong,wangkun,liuyang-xian.influenceofinherentpotassiumincorncobonhydrogenproductionwithsupercriticalwatergasification[j].journalofxi'anjiaotonguniversity,2011,45(7):15-21.)
|
| [16] | 张国妮.超临界水中甲醛气化制氢的微观机理研究.南京:东南大学,2007.(zhangguo-ni.studyonthemechanismsofformaldehydedecompositioninsupercriticalwater.nanjing:southeastuniversity,2007.)
|
| [17] | 余春江.生物质热解机理和工程应用研究.杭州:浙江大学,2000.(yuchun-jiang.biomasspyrolysismechanismandengineeringapplicationresearch.hangzhou:zhejianguniversity,2000.)
|
| [18] | weixl,schnellu,heinkrg.behaviourofgaseouschlorineandalkalimetalsduringbiomassthermalutilisation[j].fuel,2005,84(7-8):841-848.
|
| [19] | brygoohb,vinaugerm,colcombetj,ephritikhineg,frachissej,maurelc.anionchannelsinhigherplants:functionalcharacterization,molecularstructureandphysiologicalrole[j].bba-biomembranes,2010,1465(1-2):199-218.
|
| [20] | 郭献军.生物质燃烧氯的析出与控制研究.武汉:华中科技大学,2009.(guoxian-jun.studyonreleaseandcontrolofchlorineduringbiomasscombustion.wuhan:huazhonguniversityofscienceandtechnology,2009.)
|
| [21] | bvhlerw,dinjuse,edererhj,krusea,masc.ionicreactionsandpyrolysisofglycerolascompetingreactionpathwaysinnear-andsupercriticalwater[j].jsupercritfluid,2002,22(1):37-53.
|
| [22] | 李卫宏,刘学武,夏远景,邓进军.木质素在超临界水中气化制氢反应机理分析[j].中国农化机,2011,(4):60-63.(liwei-hong,liuxue-wu,xiayuan-jing,dengjin-jun.reactionmechanismanalysisonhydrogenproductionbygasificationoglignininsupercriticalwater[j].chineseagriculturalmechanization,2011,(4):60-63.)
|
| [23] | haoxh,guolj,maox,zhangxm,chenxj.hydrogenproductionfromglucoseusedasamodelcompoundofbiomassgasifiedinsupercriticalwater[j].intjhydrogenenerg,2003,28(1):55-64.
|
| [24] | zhangyc,zhangj,zhaol,shengcd.decompositionofformicacidinsupercriticalwater[j].energfuel,2009,24(1):95-99.
|
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