LAUSR

Adsorption is important for many applications including catalysis and water remediation technology. To improve the performances of such applications, it is essential to have a deep understanding of adsorbent–adsorbate interactions, and of the dynamics involved in adsorption/desorption processes of porous adsorbent materials. In this study, the thermal desorption of high-silica (HS) ZSM-5 zeolite loaded with mixtures of organic compounds (namely, methyl tert-butyl ether/toluene, and methyl tert-butyl ether/1,2 dichloroethane) was investigated in real time using in situ high-temperature synchrotron X-ray powder diffraction (HT-XRPD). A picture of both kinetics and dynamic behavior of this adsorbent during thermal regeneration is presented, including the evolution of refined occupancies of the host molecules as a function of temperature. The adsorption enthalpy and entropy of the organic compound were also evaluated and compared with desorption temperature. It was found that configurational effects can affec...