The Zrp Molecular Sieve Modified N-heptane Aromatization Performance

The conversion of n-heptane under the condition ofFCC has been investigated. The resu1ts showed' that theability of ZRP to aromatize has been enhanced becauseof the addition of Zn and Ga. But after hydrothermaltreqting, the ability of ZRP to aromatize decreasedvery obviously. It may result from the agglomerationof Zn and loss of acid.It is also fOund that the impregnation of Zn and Pat the same time can increase the hydrothermalstability of modified zeolite. It may be due to thesediment of Zn and P to prevent Zn fromagglomerating.In addition, the reaction kinetics of modified zeolitehas been studied as well.