01649nas a2200145   4500008004100000245008400041210006900125260000800194300001400202490000700216520112800223100002401351700002201375856010601397       2014                        eng d00aFunction of metals and supports on the hydrodeoxygenation of phenolic compounds0 aFunction of metals and supports on the hydrodeoxygenation of phe  cNOV  a1573-15830 v793 a<p>Hydrodeoxygenation (HDO) is an important process for removing oxygen from lignin-derived phenolic monomers to obtain chemicals that can be used as fuel or fuel additives. A systematic study is performed to check the effects of supports (acidic, neutral, basic) and noble metals (Pd, Pt, Ru) on the HDO of phenol, guaiacol, and eugenol. Evaluation of the combinations of metals and supports under the similar reaction conditions shows that the metals supported on a highly acidic support (SiO2-Al2O3) yield complete hydrogenation products with the possibility of C[BOND]O bond cleavage to achieve a real HDO activity, whereas on a mildly acidic support (gamma-Al2O3), a complicated product distribution is achieved, and neutral (C) and basic (HT) supports give restricted hydrogenation activity but yield the products with very high selectivity. On the basis of the results, reaction pathways are suggested and deliberated. The catalysts show reproducible activity in recycle runs. The catalysts are characterized by various techniques (XRD, TEM, TPD, ICP-OES) to establish the catalyst activityproperty relationship.</p>1 aDeepa, Ayillath, K.1 aDhepe, Paresh, L.  uhttps://library.ncl.res.in/content/function-metals-and-supports-hydrodeoxygenation-phenolic-compounds