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Abbas, Hadj Abbas; Pour, Zahra Asgar; Alnafisah, Mohammed S; Cortes, Pablo Gonzalez; El Hariri El Nokab, Mustapha; Elshewy, Ahmed; Sebakhy, Khaled O
Materials, 05/2024, Volume: 17, Issue: 10Journal Article
Spheres comprising 10 wt.% Mosub.2C/γ-Alsub.2Osub.3, synthesized through the sucrose route, exhibited unprecedented catalytic activity for olefin hydrogenation within an industrial naphtha feedstock that contained 23 wt.% olefins, as determined by supercritical fluid chromatography (SFC). The catalyst demonstrated resilience to sulfur, exhibiting no discernible deactivation signs over a tested 96 h operational period. The resultant hydrogenated naphtha from the catalytic process contained only 2.5 wt.% olefins when the reaction was conducted at 280 °C and 3.44 × 10sup.6 Pa Hsub.2, subsequently blended with Athabasca bitumen to meet pipeline specifications for oil transportation. Additionally, the carbide catalyst spheres effectively hydrogenated olefins under steam conditions without experiencing any notable hydrogenation in the aromatics. We propose the supported carbide catalyst as a viable alternative to noble metals, serving as a selective agent for olefin elimination from light petroleum distillates in the presence of steam and sulfur, mitigating the formation of gums and deposits during the transportation of diluted bitumen (dilbit) through pipelines.
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