Premium
Kinetics of aging process on reduced Ag exchanged mordenite in dry air and humid air
Author(s) -
Choi Seungrag,
Nan Yue,
Tavlarides Lawrence L.
Publication year - 2021
Publication title -
aiche journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.958
H-Index - 167
eISSN - 1547-5905
pISSN - 0001-1541
DOI - 10.1002/aic.17182
Subject(s) - chemistry , iodine , adsorption , water vapor , kinetics , airflow , thermodynamics , organic chemistry , physics , quantum mechanics
Aging effects of off‐gas streams including dry air and humid air on reduced silver exchanged mordenite (Ag 0 Z) were studied. Aged Ag 0 Z was prepared by exposing Ag 0 Z to dry air and humid air at different aging temperatures, time, and water vapor concentrations. Iodine loading capacity on the aged Ag 0 Z was obtained through a continuous‐flow adsorption system. Significant iodine loading capacity losses were observed after the Ag 0 Z was exposed to dry air and humid air. Physical and chemical analyses were conducted to observe the physical and chemical changes of Ag 0 Z after being aged. From iodine adsorption data and sample analyses, it was found that iodine loading capacity on the aged Ag 0 Z in dry air and humid air decreases with increasing aging temperatures, time, and water vapor concentrations. The pseudo reaction model describes experimental data well and the oxidation of Ag 0 is the rate determining step in the aging process.