Slurry-phase hydrotreating of waste oil to bio-hydrogenated diesel using in situ oil-soluble MoS2 nanoparticles.

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    • Abstract:
      The oil-soluble MoS 2 nanoparticles were prepared by hydrolysis of cottonseed acidic oil (CAO) and adopted in situ as the catalysts for slurry-phase hydrotreating of CAO to produce bio-hydrogenated diesel (BHD). The catalytic performance of MoS 2 nanoparticles was evaluated and correlated with their morphological characteristics. The results demonstrated that the particle size and morphology of MoS 2 nanoparticles were obviously dependent on the sulfurization temperature during preparation. The nanoparticles prepared at lower temperature, such as 240 °C (MoS 2 -240), had excellent dispersion in CAO, and their average particle size was 169 nm, exhibiting mono-slabs or double-slabs with an average slab length of 6.1 nm. The catalytic performance of MoS 2 nanoparticles showed a good correlation with their dispersion. The CAO conversion of 98 w% and the BHD yield of more than 82 w% were obtained at a MoS 2 -240 dosage of 500 μg/g, a reaction temperature of 380 °C, an initial H 2 pressure of 5 MPa, and a residence time of 1 h. • Oil-soluble MoS 2 were applied in slurry-phase hydrotreating to produce BHD. • Average size of MoS 2 -240 was 168.9 nm, showing double-slabs with length of 6.1 nm. • Catalytic performance of MoS 2 showed a good correlation with their dispersion. • Conversion of 98 % and BHD yield of 82 % were obtained at MoS2 dosage of 500 μg/g. [ABSTRACT FROM AUTHOR]
    • Abstract:
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