Adsorption of methanol and water on H-ZSM-5
The adsorption of water and methanol on H-ZSM-5 has been characterized by temperature programmed desorption (TPD), thermogravimetric analysis, and transmission infrared spectroscopy. For water, adsorption of the first molecule at the cation site occurs with a heat of adsorption of 12.1 kcal/mol. The heat of adsorption drops rapidly when more than one water molecule per cation is adsorbed and all additional water can be removed by evacuation at room temperature. For methanol, TPD shows adsorption in two desorption states. The higher temperature state corresponds to one molecule adsorbed at each cation site, while the lower temperature state is more weakly adsorbed and may not be associated w
- Research Organization:
- Univ. of Pennsylvania, Philadelphia
- OSTI ID:
- 6384131
- Journal Information:
- J. Catal.; (United States), Journal Name: J. Catal.; (United States) Vol. 89:1; ISSN JCTLA
- Country of Publication:
- United States
- Language:
- English
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