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1、315Vo.l 31No. 52006M10JOURNALOFCHINA COAL SOCIETY Oc.t 2006cI|:0253-9993(2006)05-0649-0573b_k闵凡飞1, 张明旭1, 陈清如2, 陈明强1(vS,2232001;Sv,221008)K1:采用 TG /DTA /GC技术进行了新鲜小麦秸秆和玉米秸秆以 K2CO3, Na2CO3, ZnCl2和CaO为催化剂制富氢燃料气的试验研究, 分析了催化剂种类及用量对新鲜生物质热解气化气体产物组成的影响. 结果表明:催化剂的加入改变了新鲜生物质热解气化气体产物的组成, 气体产物中H2的含量增加;K2CO3, Na2
2、CO3, ZnCl2对提高H2含量效果很明显;ZnCl2对 CH4的生成有抑制作用, CaO对生物质热解过程中 CH4的产生有一定的促进作用;随着催化剂用量的增加 H2的含量增加, 当K2CO3和Na2CO3用量为 20%左右时, H2含量可达 55%左右.1oM:新鲜生物质;热解气化;催化剂;富氢燃料气;TG /DTA /GCms|:Q67DSM:Al:2005-12-26:SE1S(50474056);8O1S(2004kj124);8nM=(2004jq144)Te:Of(1969-),3,pV,q. Tel:0554-6668649, E-mail:Trial study on cat
3、alytic pyrolysis gasification of freshbiomass to produce hydrogen rich gasMIN Fan-fei1, ZHANGM ing-xu1, CHEN Qing-ru2, CHENMing-qiang1(1.DepartmentofMaterialScienceandEngineering, AnhuiUniversity ofScience and Technology, Huainan232001China;2.SchoolofChemicalEngi-neering, ChinaUniversity ofMiningand
4、 Technology, Xuzhou221008, China)Abstract:Catalyticpyrolysisgasification of fresh corn straw andwheat straw forproduction of rich hydrogen gaswere carried outbyTG /DTA /GC technology in theatmosphereofN2 withpotassium carbonate, sodium carbonate,zincchloride and calcium oxide as catalyst, respective
5、ly. The influence of the kindsof catalyst and the catalystweight/biomassweightratioson thecomponentsof thegasyields and their change ofpyrolysisgasification of freshbiomasswasanalyzed. Theresults indicate thattheaddition ofcatalystsmake theyieldsofdifferentgasoffreshbio-masspyrolysisgasification red
6、istributing, and increasing theyieldsofH2, especiallywhenpotassium carbonate, so-dium carbonateor zincchloride isadded, zincchloride can restrainproducing ofCH4, calcium oxide can improveproducingofCH4, increasing catalystsweight/biomassweight ratio result in increasing of yields ofH2, and theyields
7、ofH2 is about 55% when potassium carbonate or sodium carbonateweight/biomassweight ratio is about20%.Key words:fresh biomass;pyrolysisgasification;catalyst;hydrogen rich gas;TG /DTA /GCF?vP#vj5,PV3?7?M1.3yv、Wi,7OBzs?sj.Q煤炭学报 2006M31、F?7W?hn94?.3?CO29VLC,9,h3“ir”.3Ycs,+c;,3TH,;s),PKV3? 1 5.3|_Z,S=)7S
8、,S=Z 7 9.3b|_Z,g 9, 10FTb453|_, L. Garcia 11 14Ni/AlTb43, S. Rapagn 15FTb453,38%5b4,TH2q.73(ibHW,scv3)_Vh3yib7s#3Y,7O731&cs3VQqv,34_q.73b_S=.1Ls(1)生物质样品k312ul(wheatstraw,/eWS)(corn straw,/eCS).3ssTnV1.V13s#sTTab le 1Proximate analysis and ultimate analysis of fresh corn straw and wheat straw %3sMt A
9、ad Vad FCadsw (Cad) w (Had) w (Nad) w (Oad) w (St, ad)WS 34.36 10.29 67.14 13.39 39.90 6.02 0.21 53.77 0.10CS 37.95 9.46 74.12 11.96 41.77 6.08 0.35 51.77 0.03(2)催化剂的准备kb4/+:CaO (sB)、 K2CO3 (sB)、 Na2CO3 (sB),b4P-(V800/4 h, ZnCl2 (sB).(3)实验仪器及方法L1N!STA3SDT2960sNZ?SNK3GC7890TMN.k-n5NsYnS.SDT2960NF(200.1)mgl1mmV3;YB,iP50mL/min,Y20minzVb;30 /min6q,Vi6800;YV|sN38MNBYD,600 H38Ls.MLHq:_TCD,TDX -01,? 3mm 2000mm,100 ,120,BYD,3mL,_120,90mV,B(B99.999%),40mL /min.3381CO2, CO, H2, CH48F,NC2H4,C2H6811 16, 17.C2H4, C2H68c,kV738T?s,sCO2, CO, H2, CH48.sZLL!38CO2, CO, H2,CH4488s100%,e)ZE9S=
