Abstract
AbstractA novel magnetic solid acid was prepared by immobilizing trifluoromethanesulfonic acid (TFMSA) and AlCl3 on a magnetic support (i. e., Fe3O4 coated by SiO2). Dibenzyl ether (DBE) which contains C−O bridged‐bond was used as a coal model compound to evaluate the activity of the catalyst for cleaving Calk‐O bonds in coal. The prepared magnetic solid acid was characterized by X‐ray diffraction, transmission electron microscopy, Fourier transform infrared spectrometer, scanning electron microscopy and energy dispersive spectrometer, and NH3‐temperature‐programmed desorption. The results show that the prepared catalyst possesses nanometer size, core‐shell structure and strong acidity. The Calk‐O bond in DBE can be cleaved at a temperature of as low as 413 K over the catalyst AlCl3‐TFMSA/Fe3O4/SiO2. The attack of H+ that generated from the magnetic solid acid and/or via hydrogen heterolysis on oxygen atom of DBE could be a crucial step for DBE hydrocracking over the magnetic solid acid.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
