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ÔÚParametric investigation of the calcium looping process for CO2 capture in a dua fluidized bed Ìáµ½Ò»¸ö active space time ÊÇʲô¸ÅÄ£¿£¿space time ÊÇ¿Õʱ¡£ |
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Basedontheaboveanalysis, a furtherparametertohelpanalyzethecaptureefficiency,active space time,isdefinedas: active = nCafa/FCO2 CCO2 CO2 concentration influegas(mol/m3) CCO2,eq equilibrium CO2 concentration (mol/m3) dp particle size(m) dp50 median particlesize(m) ECO2 CO2 capture efficiency(%) e0 sorbent particleporosity fa free activeCaOfraction(mol%) F0 CaCO3 make-up flowandpurge(mol/h) FCa calcium loopingratebetweenreactors(mol/h) FCa/FCO2 calcium loopingratio FCO2 CO2 flow tothecarbonator(mol/h) Fgas flue gasflowotherthanCO2 (mol/h) ks surface carbonationrateconstant(m4 mol/s) N carbonation¨Ccalcination cyclenumber nCa amount ofcalciumincarbonator(mol) S0 initial CaOsurfacearea(m2/cm3) Tcarb carbonator temperature(?C) Xmax CaO averageCO2 carrying capacity(mol%) Xcarb CaO carbonationconversion(mol%) yCO2 vol. percentageofCO2 in gas(vol.%) Greek letters carbonator spacetime(h) active active spacetime(h) |

3Â¥2010-10-25 18:55:44
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2Â¥2010-10-25 09:21:59














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