eprintid: 11401
rev_number: 2
eprint_status: archive
userid: 1
dir: disk0/00/01/14/01
datestamp: 2023-11-10 03:25:55
lastmod: 2023-11-10 03:25:55
status_changed: 2023-11-10 01:15:10
type: article
metadata_visibility: show
creators_name: Mohd Arif, N.N.
creators_name: Abidin, S.Z.
creators_name: Osazuwa, O.U.
creators_name: Vo, D.-V.N.
creators_name: Azizan, M.T.
creators_name: Taufiq-Yap, Y.H.
title: Hydrogen production via CO2 dry reforming of glycerol over ResbndNi/CaO catalysts
ispublished: pub
keywords: Calcium oxide; Carbon dioxide; Catalyst activity; Chemical shift; Glycerol; Hydrogen; Hydrogenation; Lime; Packed beds; Rhenium compounds; Water gas shift, Catalytic performance; Dry reforming; Glycerol conversions; Nickel based catalysts; Operating temperature; Reaction temperature; Water gas shift (WGS) reaction; Wet impregnation method, Hydrogen production
note: cited By 39
abstract: The present work investigates the performance of Re-promoted Nickel-based catalyst supported on calcium oxide for glycerol dry reforming reaction. The catalysts were prepared using wet impregnation method and their catalytic performance was tested in a packed bed reactor with CO2 to glycerol ratio (CGR) of 1�5, reaction temperature of 600�900 °C and gas hourly specific velocity (GHSV) of 1.44 � 104�7.20 � 104 ml gcat�1 s�1. The optimum operating temperature for both Ni/CaO and ResbndNi/CaO is 800 °C, with the GHSV of 3.6 � 104 mL gcat�1s�1. The optimum CGR for Ni/CaO and ResbndNi/CaO is 1.0 and 3.0, respectively. At this condition, hydrogen gas is directly produced from glycerol decomposition and indirectly from water-gas-shift reaction. After 2 h at the optimum conditions, 5% ResbndNi/CaO gives optimal glycerol conversion and hydrogen yield of approximately 61% and 56%, respectively, while in comparison to 15% Ni/CaO, the conversion and yield are 35 and 30%, respectively. Characterization of the spent catalysts showed the existence of whisker carbon from the CO2 hydrogenation and methanation processes. By comparing to 15% Ni/CaO, the addition of Re increases the acidic sites of the catalyst and enhanced the surface adsorption of OH group of the glycerol. The adsorbed glycerol on the catalyst surface would further react with the adsorbed CO2 to yield gases products. Thus, the catalytic activity improved significantly. © 2018 Hydrogen Energy Publications LLC
date: 2019
publisher: Elsevier Ltd
official_url: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85049608241&doi=10.1016%2fj.ijhydene.2018.06.084&partnerID=40&md5=d9abca537d75230e2f3488ec1551be48
id_number: 10.1016/j.ijhydene.2018.06.084
full_text_status: none
publication: International Journal of Hydrogen Energy
pagerange: 20857-20871
refereed: TRUE
issn: 03603199
citation:   Mohd Arif, N.N. and Abidin, S.Z. and Osazuwa, O.U. and Vo, D.-V.N. and Azizan, M.T. and Taufiq-Yap, Y.H.  (2019) Hydrogen production via CO2 dry reforming of glycerol over ResbndNi/CaO catalysts.  International Journal of Hydrogen Energy.  pp. 20857-20871.  ISSN 03603199