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The kinetics of toluene alkylation has been studied in a riser simulator over a USY-zeolite-based catalyst. The study was carried out at 375, 400, 425 and 450°C for reaction times of 3, 5, 7, 10, 13 and 15s. Toluene conversion was found to increase with both temperature and reaction time with maximum toluene conversion of 12.16% achieved at 450°C for a reaction time of 15s. Xylene selectivity, though...
During July, 1990 - June, 1992 we collected stomach contents of necropsied rodents that totalled 494 Arvicanthis niloticus (Desmarest, 1822), 356 Mastomys natalensis (Smith, 1834) and 273 Tatera valida (Wroughton, 1906) from natural, savanna fields in Nigeria, and 528 Arvicanthis and 367 Mastomys from nearby irrigated fields, where Tatera was never trapped. The materials were processed and microscopically...
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