3240

3011

كارشناسي ارشد

﴿ شيمي آلي ﴾

اصفهان : دانشگاه صنعتي اصفهان ، دانشكده : شيمي

1384

يازده ، 65 ، [II] ص : مصور ، نمودار ، جدول

ص . ع : به فارسي و انگليسي

شيمي

ID3011

به فارسي و انگليسي : قابل رويت در نسخه ديجيتالي

Abstract Zeolites are materials that have large applications as an ionic exchange adsorbentand catalysis One of the most important zeolites that it has industrial applicationsespecially as a catalyst is ZSM 5 In this project a comparative study of the reactionparameters involving the vapour phase isopropylation of benzene with isopropanol IPA over H ZSM 5 and H3PO4 ZSM 5 catalysts is taken up to evaluate the performance ofthese two catalysts for the industrially important cumene synthesis Evaluation ofcatalysts for isopropylation of benzene reaction using 2 propanol as alkylating agent wascarried out in a continuous down flow fixed bed reactor at atmospheric pressure in thetemperature range 423 673 K The influence of SiO2 Al2O3 ratio 60 170 of the zeolite H3PO4 content reaction parameters such as reaction temperature molar ratio of benzeneand 2 propanol and time on stream was studied Maximum benzene conversion 12 was noted at 523 K over 15 H3PO4 ZSM 5 The reaction selectivity on 15 H3PO4 ZSM 5 60 SiO2 Al2O3 60 is higher 100 than that of the most active H ZSM 5catalyst 74 at the same temperature

مهران غياثي

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