AN 152 ACID PULSE-TPD AUTOCHEM

Acid Site Characterization of NH4 + ZSM-5 (SiO2/Al2O3:280/1): A Pulse Chemisorption and TPD Application for the AutoChem

The zeolite used in this application contained hydrogen cations and had a silica-to-alumina ratio of 280:1. Isopropylamine ( > 99.5% GC) and propylamine ( > 99.0% GC) were used, separately, as reagents. Propylene ( > 99%) was also used for calibration purposes.