Kinetics of aging process on reduced Ag exchanged mordenite in dry air and humid air | Zendy

Choi Seungrag | Zendy; Nan Yue | Zendy; Tavlarides Lawrence L. | Zendy

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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.

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