Kim, Gayoung Seo, Jangwoo Choi, Jae-Wook Jae, Jungho Ha, Jeong-Myeong Suh, Dong Jin Lee, Kwan-Young Jeon, Jong-Ki Kim, Jae-Kon 2024-01-19T23:02:15Z 2024-01-19T23:02:15Z 2021-09-03 2018-04-01 0920-5861 https://pubs.kist.re.kr/handle/201004/121504 The two-step hydrodeoxygenation of pine sawdust pyrolysis oil, or bio-oil, is performed using pairs of first-step hydrotreating and second-step hydrodeoxygenating catalysts. The reaction results demonstrate that the combination of hydrotreating carbon-supported 5 wt% Pd (5 wt% Pd/C) and hydrodeoxygenating tungstate-zirconia-supported 3 wt% Ru (3 wt% Ru/WZr) catalysts produced the highest yield of oil products and the lowest yield of cokes and tars. The hydrodeoxygenated liquid products are further analyzed using FT-IR, which indicates the removal of carbonyls and hydroxyls along with an increase of methyls. The roles of hydrotreating Pd/C are further studied using GC/MS results of the hydrotreated liquid products; these results indicate that the hydrogenation of carbonyls to alcohols and the saturation of furans occur during the first step of the hydrotreating process. The removal of carbonyls and unsaturated furans can suppress their strong adsorption to noble metal surfaces and then their carbonization to cokes. English ELSEVIER SCIENCE BV SUPPORTED RU CATALYSTS BIO-OIL MODEL-COMPOUND GUAIACOL BIOMASS FUELS BIOFUELS STORAGE GASES PHASE Two-step continuous upgrading of sawdust pyrolysis oil to deoxygenated hydrocarbons using hydrotreating and hydrodeoxygenating catalysts Article 10.1016/j.cattod.2017.09.027 1 CATALYSIS TODAY, v.303, pp.130 - 135 CATALYSIS TODAY 303 130 135 scie scopus 000425175700020 2-s2.0-85030703507 Chemistry, Applied Chemistry, Physical Engineering, Chemical Chemistry Engineering Article; Proceedings Paper SUPPORTED RU CATALYSTS BIO-OIL MODEL-COMPOUND GUAIACOL BIOMASS FUELS BIOFUELS STORAGE GASES PHASE hydrotreating hydrodeoxygenation ruthenium tungstate-zirconia palladium