Comparative study of Ni-Ce loading method: Beneficial effect of ultrasonic-assisted impregnation method in CO2 reforming of CH4 over Ni-Ce/SBA-15

Catalytic pyrolysis of coconut oil with Ni/SBA-15 for the production of bio jet fuel

“…In the spectrum of the 1% Ni SBA-15 sample, a decrease in the intensity of the band in the region from 3700 cm −1 to 3000 cm −1 was verified, indicating the replacement of O–H bonds by O–Ni. 54 However, in the 5% Ni/SBA-15 sample, this same behavior was not observed, which may be associated with water physiosorbed on the surface of the material due to exposure to air in the sample during preparation for performing the FTIR analysis. 55 Another modification was observed in the 963 cm −1 band of the SBA-15 without metal.…”

Tailoring the yttrium content in Ni-Ce-Y/SBA-15 mesoporous silicas for CO2 methanation

“…Four peaks were revealed and labelled α, β, γ, and δ for 15Ni10Ce/SBA-15 and 15Ni10CexY/SBA-15 catalysts (Figs. 5a-b), and attributed to the reduction of Ni species with different degree of metal-support interactions [78,79]. The peaks centered at temperatures lower than 400 °C (α and β) were attributed to the reduction of NiO species located on the external surface of SBA-15 [79,80].…”

Technologies Involved in the Demulsification of Crude Oil

“…A demulsifier is a surface-active compound so that the demulsifier moves to an oil-water interface and breaks the film rigid, which causes the water droplets to coalesce. In principle, a huge quantity of surfactants can be prepared just through the manipulation of surfactants in a commercial polymer surfactant long chain by changing accepters, compounds, amounts and sequences [14]. The basic element of the chemical demulsification mechanism of any type of emulsion is the gradual replacement of demulsifiers within the water oil film and eventually causing tremendous changes to the interface viscosity and elasticity [15].…”