AN 148 ACID PULSE-TPD AUTOCHEM
Acid Site Characterization of H+ β (SiO2/Al2O3:75/1): 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 75:1. Isopropylamine ( > 99.5% GC) and propylamine ( > 99.0% GC) were used, separately, as reagents. Propylene ( > 99%) was also used for calibration purposes.