丙烷脱氢制丙烯催化剂研究

究,利用响应面软件得出该催化剂最佳的反应工艺条件为:反应温度600。C,反应空速6.45h~,氢烃比为0.25。在此条件下对催化剂进行6h的短时活性考察,发现与软件的预测值误差在工程允许范围内,说明响应面分析法对反应工艺条件的预测可信。黑山论坛
关键词:p分子筛:Y—A1203;铂;锡;丙烷;丙烯;催化脱氢hpoa
acidfunctionsandmetalfunctionsstandatthebestcatalystandmadethematchingbetween
balance.TheexperimentalresultshowedthatthebestappropriatecontentofSnwas0.9wt%,at,thisSncontent,thehighestandmoststableconversionlevelswereobtained,thenastabilityte.stoftheSn(0.9)Pt(O.5)/7一Ai203wascarriedout,theresultsshowedthatthecatalysthasahighreactionstabilityandcoversionlevelinllh,andafter1lhitsdeactivationbecamefaster,thenthecharacterizationofBET、XRD、NH3一TPD、Py—IRandTGwereconductedtoanalysisthe
丑陋的北京人oftheacidsites,interactionsbetweenmetalandphysicalstructure,thenatureandquantity
carderandcokingofthecatalysts.
余书华3.Thecatalyticacvtivityandstabilitydependednotonlyonthecarrierandactive
articlecarriedoutamoredetailedstudyofthecomponents,butalsotheoperatingconditions.This
Sn(0.9)Pt(O.5)/T-A1203catalystbytheresponsesurfacemethodologyanddeterminedthe
600。C,WHSVis6.45h-1optimumoperatingconditionsparameters,thereactiontemperaturewas
andthemolarratioofH2一Propanewas0.25,Underthiscondition,anactivityandstabilitytestoftheSn(0.9)Pt(0.5)/7-A1203catalystwasconducted,theresultsshowedthatthecatalysthasahigherconversionlevelcomparedwiththepreviousreactionconditionsandthepropeneselectivityandthecatalyticstabilitywerealsoprettYgood.
Key
温室气体排放IV
目录
摘要…………………………………………...…………………………………………………IAbstract.….…….......…........…....…..........……......…….……….......…......…....…...…...........……………..Ill1文献综述……………………………………………………………………………………….11.1丙烷催化脱氢制丙烯催化剂研究的目的和意义……………………………………………11.1.1丙烯的用途……….…………….…,.:。:■….■….……..……………ii.…………………11.1.2丙烯的需求分析……………………………………………………………………………11.2丙烷脱氢工艺研究现状………………………………………………………………………21.2.1Oieflex工艺…………………………………………………………………………………21.2.2Catofio工艺………………………………….……………………………………………一31.2.3Star工艺……………………………………………………………………………………41.2.4丙烷催
理性与感性作品音乐会化脱氢各工艺工程分析……………………………………………………………51.3丙烷脱氢制丙烯催化剂的研究进展………………………….=.……………………………71‘3.1铬系催化剂…………………………………………………………………………………71.3:2铂系催化剂…………………………………………………………………………………81.3.3催化剂的改进………………………………………………………………………………81.4课题用载体性能……。……-……………….:……………………一j………………………91.4.113分子筛…………………………………………………………………………………….91.4.2丫一A1203……………一0………………………………………………………………………………………………一101.5本论文工作的主要研究内容……………………………………………………………….112实验方法…………………………………………….……...一……:..…..…………………….122.1实验原料与试剂………………………...………………………………………………….122.2试验仪器…………………………………………………………………………………….12’2.3催化剂样品制备………………………:……………………………………………………122.4催化剂表征………………………………:………………………………………………….132.4.1x.射线衍射分析(XRD)…………………………………………………………………..132.4.2吡啶一红外光谱表征(PY.IR)……………………………….……………………………一
142.4.3NH3程序升温脱附(NH3一TPD)……………………………………………………………142.4.4BET分析……………………………………………………………………………………………………………..14

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