TY  - JOUR
JF  - Molecular Catalysis
AV  - none
PB  - Elsevier B.V.
VL  - 514
KW  - Ammonia; Batch reactors; Catalyst activity; Catalyst selectivity; Crystallite size; Hydrogen production; Hydrogenolysis; Hydrolysis; Impregnation; Nanocatalysts; Nickel
KW  -  1-3-propanediol; Aqueous-phase reforming; Higher yield; Ni/CeO2 catalyst; Renewable fuels; Sonochemical; Sonochemically synthesized catalyst; Synthesised; ]+ catalyst
KW  -  Glycerol
TI  - In-situ hydrogenolysis of glycerol using hydrogen produced via aqueous phase reforming of glycerol over sonochemically synthesized nickel-based nano-catalyst
Y1  - 2021///
N2  - 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 â??, 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 â??) 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 â?? 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.
SN  - 24688231
ID  - scholars14511
A1  - Syuhada, A.
A1  - Ameen, M.
A1  - Azizan, M.T.
A1  - Aqsha, A.
A1  - Yusoff, M.H.M.
A1  - Ramli, A.
A1  - Alnarabiji, M.S.
A1  - Sher, F.
UR  - https://www.scopus.com/inward/record.uri?eid=2-s2.0-85114665808&doi=10.1016%2fj.mcat.2021.111860&partnerID=40&md5=b4a44c0d474d05c0a9a58eb3280b4d40
N1  - cited By 27
ER  -