Monitoring Transient Sorption of Hexane Isomer Mixtures in a Large ZSM‐5 Single Crystal via Infrared Microimaging
Year: 2024
Type: article
Abstract: Infrared (IR) microimaging is employed for selectively recording two‐dimensional plots of the individual distributions of the components n‐hexane (nC6) and 3‐methylpentane (3MP) over a single crystal of zeolite ZSM‐5 during mixture adsorption. At a pressure change from 0 to 0.02 mbar, the scenario of “overshooting” is observed, with the concentration of nC6 temporarily exceeding its equilibrium value. After the next pressure step from 0.02 to 2 mbar, 3MP is progressively driven out of the pores, in parallel with an increase in nC6 concentration. The IR microimaging results are corroborated by grand canonical Monte Carlo simulations, which help explain the peculiarities of mass transfer by providing visual representations of the distribution and packing densities of the guest molecules in the pores.
Source: Chemie Ingenieur Technik
Institutions: Leipzig University, Northwestern University
Language: English
Subfield: Inorganic Chemistry
Field: Chemistry
Domain: Physical Sciences
Open Access status: hybrid
Estimated APC paid: $3,840
Awards: G1694769207, COORDINATION-CHEMISTRY-DERIVED MATERIALS FEATURING NANOSCALE POROSITY AND SELECTIVE CHEM. SEPARATION, G222768804, G3726018925, G379972611, COORDINATION-CHEMISTRY-DERIVED MATERIALS FEATURING NANOSCALE POROSITY AND SELECTIVE CHEM. SEPARATION, COORIDINATION CHEMISTRY DEVIVED MATERIALS FEATURING NANOSCALE POROSITY AND SELECTIVE CHEMICAL SEPARATION, G5648016710
OpenAlex ID: W4404152684