Hydrodeoxygenation and hydrodesulfurization co-processing over ReS2 supported catalysts

On Stability of High-Surface-Area Al2O3, TiO2, SiO2-Al2O3, and Activated Carbon Supports during Preparation of NiMo Sulfide Catalysts for Parallel Deoxygenation of Octanoic Acid and Hydrodesulfurization of 1-Benzothiophene

NiMo sulfide catalysts were prepared by the impregnation of high surface area supports with an aqueous solution made of NiCO3·2Ni(OH)2, MoO3 and citric acid, followed by freeze drying and sulfidation in H2S/H2 mixture. N2 physisorption and X-ray diffraction were selected to investigate the amphoteric oxides Al2O3 and TiO2, acidic SiO2-Al2O3 and activated carbon supports, fresh prepared sulfide NiMo catalysts and spent catalysts after model parallel reaction of octanoic acid deoxygenation and 1-benzothiophene hydrodesulfurization. The studied mesoporous amphoteric oxides Al2O3 and TiO2 did not lead to highly active NiMo catalysts due to the low hydrothermal stability of these supports during the preparation of the active sulfide phase and deoxygenation reaction. The most active catalyst based on oxidic support was the NiMo sulfide supported on acidic mesoporous SiO2-Al2O3, which was explained by the increased stability of this support to the water and CO/CO2 mixture during the activation of the sulfidic phase and deoxygenation reaction. The extraordinarily high stability of the activated carbon support led to outstanding activities of the sulfidic NiMo/C catalyst.

Refinery integration of lignocellulose for automotive fuel production via the bioCRACK process and two-step co-hydrotreating of liquid phase pyrolysis oil and heavy gas oil

Co-hydroprocessing of liquid phase pyrolysis oil with refinery intermediates was performed for fuel production with 8–9% renewable carbon content.

Recent progress on upgrading of bio-oil to hydrocarbons over metal/zeolite bifunctional catalysts

Upgrading of bio-oil over metal/zeolite bi-functional catalysts, is of high necessity and popularity in converting biomass to high-quality hydrocarbons (transportation fuels and petrochemicals) to reduce the overall CO₂ emissions of fossil based materials.

Growth of two-dimensional rhenium disulfide (ReS2) nanosheets with a few layers at low temperature

Single-crystalline ReS₂ nanosheets with a few layers were vertically grown on a SiO₂/Si wafer by a gas phase reaction process at ambient pressure.

Guaiacol hydrodeoxygenation reaction catalyzed by highly dispersed, single layered MoS2/C

Single layered MoS₂ supported on activated carbon prepared by a microemulsion technique with good catalyst stability even after 4 uses.

Effective parameters on selective catalytic hydrodeoxygenation of phenolic compounds of pyrolysis bio-oil to high-value hydrocarbons

Selective hydrodeoxygenation of phenolic compounds present in pyrolysis bio-oil (phenol, cresol, guaiacol and anisole) to high-value hydrocarbons is a great function of catalyst properties and operating conditions.