| Abstract: | The temperature programmed desorption (TPD) spectrum of ammonia from HLaCaNaY alkylation catalysts shows a strong band with maximum at 389°C, which virtually coincides with the optimal sample activation temperature (380°C). The TPD spectrum was found to account for the specific features of the acidity of these alkylation catalysts. Institute of Bioorganic and Petroleum Chemistry, National Academy of Sciences of Ukraine, 1 Murmanskaya ul., Kiev 02094, Ukraine. Translated from Teoreticheskaya i éksperimental'naya Khimiya, Vol. 36, No. 4, pp. 247–250, July–August, 2000. |
