TY - JOUR SN - 03603199 PB - Elsevier Ltd Y1 - 2019/// EP - 225 UR - https://www.scopus.com/inward/record.uri?eid=2-s2.0-85044949107&doi=10.1016%2fj.ijhydene.2018.03.093&partnerID=40&md5=c5b6956e7b0abcd2533216dbad9a9ba5 A1 - Harun, N. A1 - Abidin, S.Z. A1 - Osazuwa, O.U. A1 - Taufiq-Yap, Y.H. A1 - Azizan, M.T. JF - International Journal of Hydrogen Energy AV - none KW - Carbon dioxide; Catalysts; Chemical reactors; Crystallite size; Glycerol; Hydrogen; Silver; Synthesis gas KW - Dry reforming; Gas hourly space velocities; Glycerol conversions; Nickel based catalysts; Operating condition; Reaction temperature; Syn-gas; Wet impregnation method KW - Hydrogen production TI - Hydrogen production from glycerol dry reforming over Ag-promoted Ni/Al 2 O 3 ID - scholars12328 SP - 213 N1 - cited By 38 N2 - In recent times, glycerol has been employed as feedstock for the production of syngas (H 2 and CO) with H 2 as its main constituent. This study centers on dry reforming of glycerol over Ag-promoted Ni/Al 2 O 3 catalysts. Prior to characterization, the catalysts were synthesized using the wet impregnation method. The reforming process was carried out using a fixed bed reactor at reactor operating conditions; 873â??1173 K, carbon dioxide to glycerol ratio of 0.5 and gas hourly space velocity (WHSV) in the range of 14.4 â?¤ 72 L g cat â??1 h â??1 ). Ag (3)-Ni/Al 2 O 3 gave highest glycerol conversion and hydrogen yield of 40.7 and 32, respectively. The optimum conditions which gave highest H 2 production, minimized methane production and carbon deposition were reaction temperature of 1073 K and carbon dioxide to glycerol ratio of 1:1. This result can attributed to the small metal crystallite size characteristics possessed by Ag (3)â??Ni/Al 2 O 3 , which enhanced metal dispersion in the catalyst matrix. Characterization of the spent catalyst revealed the formation of two types of carbon species; encapsulating and filamentous carbon which can be oxidized by O 2 . © 2018 Hydrogen Energy Publications LLC ER -