Please use this identifier to cite or link to this item:
|Title:||Characterizations and performances of Ni/diatomite catalysts for dry reforming of methane||Authors:||Jabbout, Karam
Hassan, Nissrine El
|Affiliations:||Department of Chemical Engineering||Keywords:||Synthesis gas
|Issue Date:||2015||Part of:||Chemical engineering journal||Volume:||264||Start page:||351||End page:||358||Abstract:||
Monometallic 5 wt% Ni containing catalysts were prepared by a two-solvent (cyclohexane/water) deposition method using cheap and widely available natural diatomites (Ni/AW2 and Ni/MN3) as supports. The fresh samples were characterized by SEM, EDX microanalysis, N2 adsorption–desorption isotherms, XRD and tested after reduction (in hydrogen) in dry reforming of methane. Spent catalysts were further characterized by TPH coupled with mass spectrometry. Although slightly less active than a reference Ni/Aerosil (Ni/SiO2) catalyst prepared in similar conditions, the Ni/diatomites catalysts showed good activity with 90% methane conversion reached on Ni/MN3 at 800 °C and a high selectivity towards dry reforming reaction (H2:CO molar ratio around unity over the entire temperature range). The catalysts were also relatively stable during catalytic measurements conducted at 650 °C for 12 h. In addition, depending on the nature of the diatomite and on the conditions of thermal activation, carbon deposits with lower toxicity (easier to remove by reactivation) than those formed on the Ni/Aerosil were obtained.
|URI:||https://scholarhub.balamand.edu.lb/handle/uob/1724||DOI:||10.1016/j.cej.2014.11.109||Ezproxy URL:||Link to full text||Type:||Journal Article|
|Appears in Collections:||Department of Chemical Engineering|
Show full item record
checked on May 1, 2021
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.