Time-resolved Operando DRIFTS-MS Study of the Moisture Tolerance of Small-pore SAPO-34 Molecular Sieves During CH4/CO2 Separation
Description
This study pretends to evaluate and understand the effect of moisture presence during CO2/CH4 separation on small-pore SAPO-34 molecular sieves. Two SAPO-34 samples with different physicochemical properties (composition, crystal size and texture) were prepared by hydrothermal synthesis using either one or a mixture of two templates. Transient operando DRIFTS-MS measurements revealed that the sample's hydrophobic character is associated to the presence of Si islands, which enhanced sample's moisture tolerance during repetitive adsorption/desorption cycles. This knowledge is fundamental to achieve the rational design of efficient SAPO-34 membranes under realistic conditions.
Abstract
Ministerio de Ciencia, Innovación y Universidades RTI2018-096294-B-C33
Abstract
Gobierno de España IJCI-2015-26348
Additional details
- URL
- https://idus.us.es/handle//11441/142646
- URN
- urn:oai:idus.us.es:11441/142646
- Origin repository
- USE