The selective formation of p-xylene is a challenging process. Among all the techniques, core-shell structured zeolite composite with an active zeolite core and an inactive outer zeolite shell attracted much attention, due to their synergistic performance in target to high p-xylene selectivity and toluene conversion simultaneously. Here a novel composite zeolite with EU-1 as core and silicalite as shell was prepared successfully. The thickness of the shell layer was controlled by crystallization duration. And its morphology was observed by SEM. The SAR was determined to escape the formation of ZSM-5. Other characterization techniques like TG-DTG-DSC and N2-adsorption were also used to obtain the structure information of as-prepared composite zeolite. Compared with the previously opened core-shell structured composite zeolite, the novel composite zeolite made a good performance in toluene methylation with methanol.

Core-shell strucutred composite zeolite for selective formation of <i>p</i>-xylene in toluene methylation with methanol

244th National Meeting (2012)

The official archive and repository for all ACS Meetings & Expositions abstracts and select posters or presentations.

Core-shell strucutred composite zeolite for selective formation of p-xylene in toluene methylation with methanol