relation: https://khub.utp.edu.my/scholars/14511/
title: In-situ hydrogenolysis of glycerol using hydrogen produced via aqueous phase reforming of glycerol over sonochemically synthesized nickel-based nano-catalyst
creator: Syuhada, A.
creator: Ameen, M.
creator: Azizan, M.T.
creator: Aqsha, A.
creator: Yusoff, M.H.M.
creator: Ramli, A.
creator: Alnarabiji, M.S.
creator: Sher, F.
description: 1,3-Propanediol (1,3-PDO) is a commercially valuable chemical for the production of polytrimethylene terephthalate polymers and polyurethane. In this study, the production of 1,3-PDO was investigated via aqueous phase reforming (APR) and selective hydrogenolysis of glycerol over Ni-Ca/CeO2 catalysts synthesized by sonochemical (Us) and wet impregnation (WI) methods. The experiments were performed in a batch reactor at 20 bar, 230 �, and 450 rpm for 1 h. The synthesized catalysts were characterized using XRD, TEM, FESEM, BET, H2-TPR, XPS, CO-chemisorption, and NH3-TPD to better understand the physio-chemical and surface characteristics. The results revealed that sonochemical catalysts showed a larger surface area, smaller crystallite size, low reduction temperature and more homogenous particle distribution than wet impregnation catalysts. For both preparation methods, monometallic Ni/CeO2 catalysts showed the highest activity, whereas Ca modification of Ni/CeO2 catalysts significantly decreased the activity of the catalysts. The highest yield and selectivity of 1,3-PDO were 19.54 and 52.73, respectively, using Ni/CeO2Us catalyst. The best catalyst was further utilized for parameters optimization study to observe the effect of varying glycerol concentration (10 to 25 vol.), temperature (210 to 250 �) and pressure (10 to 30 bar) on the yield and selectivity of 1,3-PDO and glycerol conversion. The results demonstrated that the highest yield (19.54) and selectivity (52.73) of 1,3-PDO were obtained over 10 vol., 230 � and 20 bar with glycerol conversion of 54.26. This present study provides a promising and economical process of converting glycerol to 1,3-PDO, which has wide applications in the industry. © 2021 Elsevier B.V.
publisher: Elsevier B.V.
date: 2021
type: Article
type: PeerReviewed
identifier:   Syuhada, A. and Ameen, M. and Azizan, M.T. and Aqsha, A. and Yusoff, M.H.M. and Ramli, A. and Alnarabiji, M.S. and Sher, F.  (2021) In-situ hydrogenolysis of glycerol using hydrogen produced via aqueous phase reforming of glycerol over sonochemically synthesized nickel-based nano-catalyst.  Molecular Catalysis, 514.   ISSN 24688231     
relation: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85114665808&doi=10.1016%2fj.mcat.2021.111860&partnerID=40&md5=b4a44c0d474d05c0a9a58eb3280b4d40
relation: 10.1016/j.mcat.2021.111860
identifier: 10.1016/j.mcat.2021.111860