✍ Scribed by J. Ilavský; Brunovská; V. Hlaváček
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An expenmental study has been made of temperature profiles mcldent wlthm a zeohte adsorbent particle m the course of adsorptron of n-heptan Usmg thermocouple wnvs 0 1 mm m dramcter rt has been posstble to measure simultaneously the temperatures of the surface and m the centre It was observed that temperature differences between center of the pellet and amblent stagnant gas may be more than 20°C The results of this work mdlcate that the overheatmg of an adsorbent partnzle IS a very rapld process wluch IS followed by a sbw coolmg of the hot particle Expenmental data are compared with prechchons calculated fi-om the theorettcal model
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The water uptake process in commercial type particles of zeolite 4A has been studied using a single-point MRI method. True proton density, T 1 , T 2 , and T\* 2 relaxation times were obtained with submillimetric resolution, overcoming the restrictions of short T\* 2 signals. The molecular mobility i