Acid-resistant hierarchical mordenite for gas dehydration

In this study, mesoporous zeolite mordenite (MOR-S2) was prepared as a solid desiccant for drying a wet gas model. The synthesized zeolite could dehydrate the nitrogen gas with an initial water content of 53 ppmv down to ca. 3 ppmv in only 60 s with a breakthrough capacity of 7.55 g/g. Five dehydration cycles indicated no changes in the adsorption behavior of the desiccant. Moreover, the retained structural properties of the syn-thesized zeolite after immersing in concentrated (97 %) sulfuric acid solution declared that it could be utilized as a desiccant for drying moist corrosive gases on an industrial scale.

Automated summary

In this study, mesoporous zeolite mordenite (MOR-S2) was prepared as a solid desiccant and successfully applied for drying a wet gas model. The synthesized zeolite exhibited excellent dehydration capacity and breakthrough capacity, and also showed retained structural properties in concentrated sulfuric acid solution.