煤电化学气化的可能性

μ023%i μ04 印A9.i;x3>~Vol.23 No.42000 Ae 10 0ACOAL CONVERSIONOct. 2000A9u》~ NgEo》μAjEAUDOA6 >9) 160%002)δ 0@ x0E6AEA9μc》 NSEo》uA -c01 AUE -I%°NDNi 10x"，/keEOAENDNi 002E0AμAμc%ax°0A、ug/u2AAT、μuglhaOEE00900%° AO/-A"作、A iAA 6Di、μg%aμc1、 TAEμE .+1000δE0q0A9μc> 7NSEO》~ μA601i，2c1%10AEA9μc》 NSE0》~ μA--0! >UAr, EAE6AE 1o0μETEμ∈OA∈μc》NSEo >- 1a00μAjEAUD0.10%40“E A， μg/ba，Eo》>~0D [1 -0Aa2A TQ546Collett E10ACu, Ni, Pb 9[ Pt μ%u q10A9/%o DVTDONO00y NO》μA,-0≈Ea9j9-CO, CO2 V°EUAi ipμAEo ia.0>0+μk20 EANT 70 Ae uAO9i 80 Ae“136, 0D10A90U/TDO%e0E00A e0-AT0E士。CaEo91O,No》- W%uEFo ia2uE .3E0Dμζ/aNo>←μAND%εμAxc0aμa0→δ←ECx+ 0:0≌uημATeA9μAEo>-，ECA93a%》 AOAμA000O [360@0》，EuμA。δ≈EaμAEOAE9[A01> Ia B。δ≈EaEOAEμA“B> VA0OAaZUE-jEx+个≌EMAY2[>-10-AT.”< j3μA9Eo》~ .lh-*ECμAtE)&T. 1985 Ae Lavani μEOUNDWi AA1土TjEE09δWu APOeE@O6FO (0UNo>ogδRoμA a0UTA) -0|Eu3EY A900 NaOH EU0e 0Dμc/haNo》-E土, xc0aμl6Nδ1< 2u110+3EEo，。A1y3iECO》. ,δUG;uATeE1ysi, e00 βTA_B 0≌E0EC。 03Ea、CO2 °1EUA: O2, μ< -c0060%ETOD H2N1 TA/NoDD，qOEe+。 2AATODwjAi1μA0≌C6，0>》-33022dEu. 0aOy°Nμc》 7NSNon- x+ 1aA E0》1y3j%oDDND%iDiSEyTNT00μATUE%，2uE- 3E1402Taq0kT B. NO000》μAEC Couglin uE01~5, 60 1979 AeEx Tias80UEaDO%e000%21μ11AETA 0A9OEEjEo iaZUE-pA-/-"，%ijE0OOE0Dμc%aA9/nOOEEj AEo 1ia2E-，0UN6/4< EμAμk CO2>t0E10AA1 BTA2AAT, 02 ;EI0ayAo2i -03.10 -x3μA .2[ CO, 06/<< ETμAμhGaEo.1y3i iEOU32TAIA%oDD ,10E%，y<- 6μ0 U)o AEA9μuANa%>A00A，0δCiA9 >心3EμG/aμc1> 1.0 V, 061/4<< 16CaDsAE%O%u 100%. 0a0》压o》> 1aAi 0oμA%90uA|.-c10^6 61a .BAEμc>~NS4OqOA9OUEaDOxeOE0Dμg/a1yA μAμc》~ NSEo”EC0U∪μg}a 200D 90A )bo Dμgha,31 10DOμANEWiDEEx. 1981 Ae Baldwin μE 6INB4jAEA90U6% 1yai, EuμA iσμaEc2Ux+ 16/pTA91，EiaON6e<.- 0! 0+0日ECAPODE0/a/%o EeE009 μA Fe2+ NiμA2GE- i昨, B、3E%μi，+》3E1@D1日A《 -c01C°%°μA>-3E Fe3+ μA1y3i. I-Ae， Okada μEIJ020UNDWεδD0aDAO》“UA9E0》- -/k-*.EμAEETEo10μa. 1982 Ae Dhoohe μE[8]6: 0A。+00μc》NsEOqi 10Ax/-0°μc》~ NSNo>- >UAi IboDDAEND4E，aybo11uAU1aA9ug》 ^NSEO》^ND%i Aiδ0> 2/20EμET∈610μala，>1 1a36A9)-N6> E在0UA9AEx0士AxEx TIEDT3E1iAeN6>个r (AaE ,03EaμATr0E), EaeA°uAμc》- NSEO》~ ECO》. δA9μg/haNo>~ uA1y3i. AxANo- uA160D, xT00Eu3E%TDi -0x0μA土WδEEa°i CO2μAμghaNo,- ND%AE xTOqECOUyTD0weOEoB%hoDDμA，1923μA10μa. 1985 Ae Murphy μE[9] -cT0 H2SO, VheOEODARAe Sohne Ex' 1%< A ho Dμg)haNo》μAμu%0》 00 ;E00U/n09%-1yμqa°6μA0e ia21π0+0≈EC C。- CrgμAip°iβ pH 0μμAAa EEV%° iaμA2u1r; 1932 Ae Lunch 9i0>01A，ETTEaDOA9%-09uAμc> NSNG》- ECE00°ODμA12A1;x@>2000 AeFe2+ Nox- AR+iAaμAA3DC>TDO>uIA, Eu3EμA Fe2+ 0U0011N6/<- .1987 Ae Vutetakist μE10] NDNzAE, βTA (500 C~800 C) TAAμc》~ NSNo》μA/a10，-c10ADDμAD>u IV4A01> ieE" 3E CO2. Di TaND%i0D>1qOA≌%-0qμq}$a06l4OECa9i EOμGlsaOFCaμA1y3ioDDEw1,IT" AEA9μg%aN6 m6%EGaOBX_IAEIuANPOuA!.10100D10A9μg)}aEo > μANDVWi Ea2WvTfi, 1982 Ael 10E-01 6NS +a1I00ADEaEDOeweOE, 002- io≌μctyue A9pμζ%aOEζaμANDNi , FaODEOAAE 1010μAO>0ON1A、1W2 A°μhbaEo>° °EμNeA=3iI%Ta0o0A，1y31006%o iaf≌caFo，2uCaμcA+DSAEFig.2 .The flow diagram of coal electrochemical自100%，No610- qo.Thermostated container;Magnetic strring heater;μkhAεC°↑≌01，A9μc>~NSEo 》uANNiEO' 0UEμNe10Temperature controlling apparatus; 11-- CathodeE01aAs，AiμA °61WEC0=0目0U06/xmμACaEo，i-E士compartment gas outlet; 12一Anode compartment gas0UN)%< EIμAμ% CO2 y。EUAiμA CO. ND42 10 x≠μA∞0μaoutlet; 13- Gas detecter; 14-- Saturated NaCl water cell0∪μqha Iμ i3μAN;0n、1=00 io4pμAxT0A》-、uqhaNo》-μA>UA1W°qTAINSμE.020A0UA9ug/baEo 》~ μAμg/haIμf3130A9μAμc》NgEo》- EC0U+> 3F e μg%a20μAx°OAODieLg3EμA，3yμgl/a201a, xe3∈EμζhaTμi3μA》1ODu%《、 ue)bakeOE、0s30μ}%al}∈O∈μE. 2E0A "yμuAA9μ》NSEo》-μG)a20/404 1~ 143，^6W4EC. ,0AeE%21Eyu/ E/%μA.143 uqha2UEe土 , V0A:3iFig.3 Cell device and the flow diagram- Anode, cathode Pt gauze; 3- Glass string; 4-Thermometer;|Calomel electrode; 6一Anode.cathode compartment gas outlet;Thermostated动|container; 8lons exchange membrane;-Temperaturecontrolling apparatus; 10一Thermocouple; 11: Potentialdifference recorder; 12: Galvanometer; 13. Voltmeter;14--- Direet current regulated power supply10U Ea BOvhe OE 0 I% , 2E 06AμAV%e OE 0A" H2SO，HJPO, 9[ CFSO.H●H2O, 02 0B 0A HCI, Na2COs，CH,COOH, HCIO, μA. 8 °0o AμAμgha, DeOaNOEe[%41 AEo》- μc%a20FeSO, >心Fer (SO,)s x+Ta B》IyA, 02040Ee Ce+，Fig. 1 Coal gsification cell1一Coal slurry; 2一Working electrode; 3-Cr2+ ,Vs+ uA.Condenser; 4一Anode compartment gas outlet; 5-hel4o 1yE￥μANDNε版a10，ijkACμlk1a0μETμA|OAεEThermometer; 6-Cathode compartment gas outlet;A0，EOBETTβ2EOA H2SO, xOWhe0E、 FeSO, Fez. Cathode; 8-- - Cathode compartment; 9: Fritted(SO)。xδ "B>~VAEWTEμOA.06/4<< 2E0ACH、N8/2E06AE-glass separator; 10一Magnetic stirringA< μADg 1002>a909A, 00 1CH 0UAδEa0D iE+E30TET" ,Eμ0 4UA0 μE Agμc=- Ns压o》° uA;EAUDO33.0000δ∈0q0A9μc》- NSAEO》" μA0°Ea0D°A" CO2，Ea- 0|E%目4Fe3+ +2H2O+C-→4Fe++CO2十4H+ + AaEuZUE-A9uAμc》←NSEo》- 1yaiE00个1o0000E0μAO°i,0aAT Fe3+ y%< A9N6>- 3∈AaEu2UE . EC0i 3Eμg/kaNo°AA~性、ARiAAE "6Di、μgaμcT>、TAYEμE.WxucA+ T-30/6°3σ∈士XaμA0-0o. A9μg}%aNo>- 1y3iEC ,δ(1) A9%-A" qEμAO°1i. OU%TDjμAA" E -91SAU,A9A“B》No>-1y3i. 01μ i3001%0.0°AμA "B>~- yAEC%-A- E1A40》11a ,BA9uchaNo>" EUqE. u<μtA°A" ECe+ej V5+ μEBA+T0ia .B B》”EE , 06%0No>° ugA+.06%0μh6O>T"3iqE96, q0No>- E作EμAO°∩ita2》1° EμxEECO》1oA9A"作E1y 6Et，-10/μμTA9μg%aN6>-EUqE. 3%jEa6δ%axc0μc}wa1y3i， . 0; EUTEμAN6q"2hOeECAR iAALti0-06EC0E0U1<. ,βμAA9%k-A- EIPOAEKA°eTμ isuAvA.eAaETμA140e Fe+ 0@waμA-' 0| , μgma09μANo》→ug1>ECDSAE，0OEOWAEuμg TNs -0! 1y3i0DuA %q.°0. LavaniTe, 0A90eμξha09°jμ\<1fAeμA%0￥1Ae ,01ixA-0!EUE.ug%aNo》1y3i0D. AEC0011aDi si iAAS ao0U0Oμg)halDi A9 iAAE;E08%0-*0!EUAE, μ AE qEμμA3-1y0O0DμA，OE001a IμOD a00102 AVTa，ANo>" *EqEO0>TPE10 Auc》- Ns .0!2> 00000°1i.A+ IO0μ∞EOμu%OEAi uμYμAIP0F，但E但-cAE0》. oAeEo(3) μl}aμ T》μA0°T. μc1》 ,Bμi T0μc》NigNo》~ 10970000 δjAALμcN6》 uA-0| AEDI..0;E0AE010000，ia .Bμla∈⊥Eu0Aμc1> εE40i-Susic μE151010A9%60 0明μc》NgNo》E》uANBWE0| EAE，μu la%a 11 0eB0OEE士，y0EeFe2+/Fe2+, Ce2+ /Ce+2f V*+/Vs+ μE“B>-2UEGEE》uD0OTi, 2c .0AN3ED1TaN6>- E-hoEeuqha No,- 》10-90，路10土1A+， A9μc》 NSEo》1ysi _0个eEy09 TIo0°TiAUAεEOAE. AxC°， ≥2E0AμAμc>NSNo》- μg1》。6lhxqT: (1) A0eNo》- VAoOVauA-0H，EUTEBEyTO0》°a40U 3 V 00TA.0.492s-1 (358K). (2) 60EE1 -A36N6 ,0 °μAμcT≥(4) TAqEμA0°I. Ey βTA仨iE0ov0μc》° NsNo>-TA，A≌%boDDμG》 Ng. 0|，.0!EE406*00+>>10-96.0!EAE. u No》uANo》VAμANo>-EUE，EUE3EEy0/↑β 7.52E0AμATAME1Wμ100 100 C.X10-*s-1. (3) AvN6O￥E+μAO+)6ON6>~. 00 , 6Ela, N; 0AμA00020D9U 6101μ. NDWε士IA+，.B .-70! 910ARA- EUμEG)0O>q- 0|.AOA9T, B0 -C -0A0D/Y βμAμc》~ NS∞TDO. yT βμANA°eEUAEiE 0/%oμc》NjSN6> 1y3i0DAO0eu%~NSE0> 1a0μEμE@μAεEAUDO14. A∈°IAQ0euqha0%zcAeμAA@Ec '《OE1y3i, 09o40ji- 0|EUAE.A9μAμc> NsEo> uA》吣”;DOND%z 1ox+0N%- EC9UETEeAE，0010μA1y3i +$%OE0e >UAiO2tE/%TCa3p，0101日4 A°uc>~NSE0> μA-0!>UAI001y3191Ee+, 2AAT%91a11020DAE362%6A0， ON%-34B3+。AENxoD10μ-A 6EeVvE91AO °6EONeμA>Ui. AμAμ。00 Coughlin °i Farooque xiTE la3oA9uc>~NS >" NSEo >-&1EC0OuqμAx+OATA，A%DaWOuUAB>N6Eo>- μA AAT, A0UAOEQODN6/<No>- 1%2UE-μA1y3i. E>C+2H2O一→CO2+4H++4e%o，1yEYyuANDWj0D>1 "aOUEy 6TEia0°Ti xA. A100μAC+H2O-→CO +2H++2e1a0μEμE@: (1) 2-ug EaE>>ODRUAμADS10, μEa10.n0E x0UN6N41 0- EuBECaFo0216, 2>> EOU1o0μIμ i30D2E0A. (2). ,6Ae20EaE>ODAa4H++4e-→2H20UN6>- >10-- 0|μAE3 A0/%o0D，0θA00UμAμ% ”i%>> uAEoBaldwin uE[6] 0 -0 02ND3%i 0D iaoA °y0Dμqhaμcia2uE-，μ<δU1σ0μIμ j30D0N; μW%DS109AμA、GimEAuA:0≈0≌EC Fe2+ μANO》° μAuμ%uA, Fe2+ EC °OAPODYIEjμ%kxa0@CσμA δAeAσEC90As AN μA. (3) N6/4<< 2UE-Eo la0+Ci Eau}WaO°00μA. Okada μEI°IO≥ETT≈E∪μa0∪μg}ba0°0曰μAμ/%μAECMbNo》→i4，μ<1a0μ°T3EEoDe0μAEC0> NoODμA Fe2+ /Fe+ N6》-》>1 0- OECE1 A9°yμc)6aN6%4 1yμc》-1%. 00 *E020U1 °0μEIEμE@A∈μc》NSEo>- 100>1 De .A1;x@>2000 AeEOμA ,δAeA >0 1i%g 10A900 -C .δAe 20DμAμgmaEo》←1yμAweEe，EμNeEONDWjμA∞∈ 10%u xB IoED3j，A≌μAμc∞←31，("1yEo-N/ux+0AE1 NO/%u*2U 1r0+0≌μAμ%6O》N6>~ NSEo ," μA1=0μEμ@%<3ET≌iEAO.1%μE. Exe xAEμNeEOND%jh0O> 2/ETEe，》Ns1031*x"4021 i%4 TA Ix1 Coughlin R w, Farooque M. Hydrogen Production from Coal Water and Electrons. Nature, 1979.279<5):301~ 3022 Coughlin R w, Farooque M. Electrochemical Gasification of Coal-Simultaneous Production of Hydrogen and Carbon Dioxide bya Single Reaction Involving Coal, Water, and Electrons. Ind Eng Chem Process Des Dev. 1980,19(2):2113 Coughlin R W. Farooque M. Consideration of Electrodes and Electrolytes for Electrochemical Gasification of Coal by AnodicOxidation. J Appl Electrocherm, 1980, 10:7294 Coughlin R W. Farooque M. Anodic Coal Reaction Lowers Energy Consumption of Metal Elctrowinning. Nature. 1979.280(8):666 .5 Coughlin R w, Farooque M. Eletrochemical Gasification of Coal (Investigation of Operating Conditions and Variables). Fuel,1979,58(10):7056 BaldwinR P. Jones K F, Joseph T T et al. Voltammetry and Elctrolysis of Coal Slurries and H-Coal Liquids. Fuel, 1981.60(8):7397 Okada G, Guruswamy V, Bockris J O M. On the Electrolysis of Coal Slurries. J Electrochem Soc, 1981.128(10):20978 Dhooge P M，Stilwell D E, Park s M. Electrochemical Studies of Coal Slurry Oxidation Mechanisms. J Electrochem Soe,1982，129(8):17199 Murphy O J, BockrisJ OJ. Later D M. Products Found in the Anodic Oxidation of Coal. Int J Hydrogen Energy, 1985.10: .45310 Vutetakist D G, Skidmore D R. Electrochemical Oxidation of Molten Carbonate Coal Slurries. J Electrochem Soc, 1987.134(12):3027~ 302811 + ,000A-a. 11aE&AT-E8ugNaOEGauANNi. EIAT ~NSNSt" , 1984.12(4):289~ 29012 1EOA01.AGONAO .109x i0. EaDONeOEODANuC NO 17 AINSμANDW&. 11%0 °δiSNst" .1992(1):31~3213 Anthony K E, Linge H G. Oxidation of Coal Slurries in Aeidfied Ferric Sulfate. J Electrochem Soe, 1983,130(11):221714 Lalvani S B. Kinetics of Coal Slurry Electroxidation. Chem Eng Conmun, 1986.48:11715 Susic M. Mimic D. Marinkovic S. Electrochemical Gasfication of Coal Part I : Kinetics of Coal Activation by Oxidants. JSerb Chem Soc, 1992 .57<10):705~706THE POSSIBILITY OF COAL ELECTROCHEMICAL GASIFICATIONLiu Huan and W ang Zhizhong(College of Chemical Engimeering and Technology , Taiyuan Universityof T'echnology, 030024 Taiyuan)ABSTRACTThe development history and the present situation of the research of the coalelectrochemical gasification was summurized, the electrolysis devices, the electrode materials andthe electrolyte used in the research were introduced, and the effect of coal concentration, electricpotential，temperature, particle size were also introduced respectively. The mechanism of thereaction which was a indirect catalyse process was studied. The conclusion was made that thepossibility of applying coal electrochemical gasification to the industry field.KEY WORDS coal, electrolysis ，gasification