Bio-oil is an alternative and renewable energy from biomass, however, its high content of oxygenates result in low heating values and chemical/thermal instability. One effective upgrading process is hydrotreatment using hydrodeoxygenation catalysts. We have synthesised a novel pillared clay catalyst, i.e.NiMoS/PILC and results showed that our catalysts were superior to commercial NiMoS/Al2O3. A crucial step in the reaction sequence is migration of adsorbed species to the active site. QENS is a well-established technique for measuring diffusion of adsorbates in microporous systems. However, it has been much less used for adsorbed species on supported catalysts. In our previous exploratory measurement, we demonstrated the measurement of guaiacol adsorbed on our catalysts. In this continuation we wish to compare the behaviour of benzyl phenyl ether adsorbed on a PILC and and a NiMoS/PILC.