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ID:41461586
大小:55.89 KB
页数:4页
时间:2019-08-25
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1、Half-time半衰期;batchreactor间歇式反应器;specificheat比热;specificsurfacearea比表面积;boundarylayer边界层;differentialpressure差压;differentialthermalanalyzer差热分析仪;airdistillation常压蒸徭;vacuumdistillation减压蒸憎;settlingout沉出;settle,subsidence沉降;settle,precipitation沉淀;masstmnsf
2、er传质;sensor传感器;coefficientofheattransfer传热系数;catalyze,catalyst,catalyzercatalyticcracking;extraction萃取;isopleth等值线isometric等容的,isobath等深线,isothermic等温的;flash闪蒸;titration滴定;electrolyzing电解;dynamics动力学;calciningfurnace熾烧炉;fermentation发酵;flange发兰;decomposi
3、tion分解;pulverization粉碎;siccity,dryingoven(box)干燥(箱);platetower板式塔;packingtower填料塔;self-refrigeration(automatic)自动冷凝;filter过滤;rotameteGrotermeter转子流量计;;columntemperaturegradient温度梯度;crystallization结晶;diffusion扩散;horsepower功率;condenser冷凝器;still釜;tank罐,槽;t
4、ower塔;chamber箱;pump泵;pan锅;tube,pipe管;valve阀;flocculation絮凝;adsorption吸附;absorption吸收;desorption解吸;dissolve溶解;fusion熔融;melt熔化;swelling溶胀;hydromechanics流体力学;pressure加压;heating加热;ReactorBathchandsemibatchreatorsBatchreactorsaregenerallyusedforliquidphasere
5、actions.Whenasolidcatalysthastobekeptinsuspensionorwhentherearetwoliquidphases,asinthenitrationofaromatics,forinstance,anagitatorisrequired.Agitationisalsonecessarytoequalizethetemperatureinthereatorandtokeepitatthedesiredlevelbyefficienthertexchangethr
6、oughajacketoraninternalcoil.Consequently,thebatchreactorisgenerallyconsideredtobespatiallyuniformincompositionandtemperature7、feway.Inpurebatchoperationthereactantsarecompletelyfedintothereatoratthebeginning.ForbettercontroloftemperaturethistypeofoperationmaynotbeadvisableandthereactantsmayhavetobeaddedprogressivelytothecontentsofthevesselThereactoristhensaidtooperateinthesemi8、batchmode.Or,aproductmaybewithdrawn,forinstance,waterinanesterification,toreachcompleteconversionofthereactants.Batchandsemibatchreactorsaremostoftenusedforlowproductioncapacities,wherethecostoflaboranddeadtimeareonlyasmallfracti
7、feway.Inpurebatchoperationthereactantsarecompletelyfedintothereatoratthebeginning.ForbettercontroloftemperaturethistypeofoperationmaynotbeadvisableandthereactantsmayhavetobeaddedprogressivelytothecontentsofthevesselThereactoristhensaidtooperateinthesemi
8、batchmode.Or,aproductmaybewithdrawn,forinstance,waterinanesterification,toreachcompleteconversionofthereactants.Batchandsemibatchreactorsaremostoftenusedforlowproductioncapacities,wherethecostoflaboranddeadtimeareonlyasmallfracti
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