Hydrodesulfurization catalysts: This work presents the in situ EXAFS and ex situ Raman monitoring of the impregnation and drying of CoMoP hydrodesulfurization catalysts. Two cells were developed, which allow for the reproduct...
In situ generation of intimacy in MnOx+SAPO‐34 mechanical mixture for the conversion of syngas to light olefins
Von Wiley-VCH zur Verfügung gestellt
Bifunctional MnOx+SAPO-34 catalysts were evaluated for the conversion of syngas to light olefins (OXZEO process). They were prepared, either by mechanical mixing of 100 µm-scale particles agglomerates, or by mixing of ethanol suspensions, containing homogeneously distributed micrometer-scale primary particles of oxide and zeolite. The selectivity to light olefins, initially lower for the mechanical mixture, reached the value of the suspension mixture after a 14 h on-stream period. This convergence was explained from SEM images by in situ breaking of SAPO-34 agglomerates present in the mechanical mixture and dispersion of SAPO-34 crystals among MnOx primary particles, decreasing the contact distance between the two catalytic functions. These results evidence the importance of intimacy at the micrometer scale to improve the catalytic properties in the OXZEO process.Zum Volltext
Jetzt nächsten Artikel lesen:
Überprüfung Ihres Anmeldestatus ...
Wenn Sie ein registrierter Benutzer sind, zeigen wir in Kürze den vollständigen Artikel.