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Information × Registration Number 0203U000361, 0100U002324 , R & D reports Title Study of the correllation between the acidity and zeolite catalysts desactivation popup.stage_title Head Patrylak K.I., Registration Date 31-01-2003 Organization Institute of Bioorganic Chemistry and Petrochemistry of National Academy of Sciences of Ukraine popup.description2 The deactivation dynamics of faujasite, mordenite and pentasil based zeolite catalysts (Si/Al = 2,5-20,5) of different (up to 500 0С) steaming temperatures and different cation filling in the cumene cracking reaction depending on acidity has been studied. It has been established the middle strength acid centers to be of the highest deactivating ability. Deactivation of faujasite and pentasil based catalysts at 500 0С proceeds not so intensively as at 320 0С what has been connected with the transition of a part of middle strength acid centers towards the strong ones at the heightened deactivation temperature as well as with the protective action of the main carboium ion process regarding the strong acid centers in direction of prevention the oligomerizations on the last5635 Product Description popup.authors popup.nrat_date 2020-04-02 Close