%0 Journal Article %T ExperimentalInvestigationofPressureDropHysteresisinaCocurrentGas?LiquidUpflowPackedBed %A XUHong-bin %A MAOZai-sha %J 过程工程学报 %D 2001 %X Extensiveexperimentalworkonhysteresisinacocurrentgas?liquidupflowpackedbedwascarriedoutwiththreekindsofpackingsandtheair?watersystem.However,onlywhenpackedwithsmallglassbeads(f1.4mm)wasthebedpressuredrophysteresisobserved.Twomoreliquidswithdifferentliquidpropertieswereemployedtofurtherexaminetheinfluenceofparametersonpressuredrophysteresis.Thesimilarityofpressuredrophysteresisinpackedbedswasconcludedincombinationofexperimentalevidencereportedinliterature. %K gas/liquid/solidpackedcolumn %K cocurrentupflow %K pressuredrophysteresis %K experimentalinvestigation %U http://www.jproeng.com/qikan/Cpaper/zhaiyao.asp?bsid=913