NiFe nanocatalysts for the hydrocracking heavy crude oil

Lam-Maldonado, Mayda; Melo-Banda, J.A.; Macias-Ferrer, D.; Schacht, P.; Mata-Padilla, José M.; Torre, A.I. Reyes de la; Melo, M.A. Meraz; Domínguez, José Manuel

doi:10.1016/j.cattod.2018.08.005

Cited by 14 publications

(2 citation statements)

References 39 publications

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“…The novelty of this method consists in obtaining exfoliated MoS 2 nanoparticles and their subsequent use as a new homogeneous nanocatalyst in the hydrocracking process, which in turn improves the HHO processing compared to other catalysts. 36 Lam-Maldonado et al 37 propose to use NiFe nanocatalysts with different molar ratios (1:0.33, 1:1, and 1:3), which were synthesized by a modified inverse microemulsion method, with the aim of their further application for HHO in situ hydroprocessing and improving the physicochemical properties of raw materials.…”

Section: Technologies For the Heavy High-viscosity Oils Processingmentioning

confidence: 99%

Disruption of Yeast Cells Xanthophyllomyces Dendrorhous (Phaffia Rhodozyma) by Vibration Resonant Low-Frequency Cavitator

Stefanyshyn¹,

Hunchak²,

Starchevskyy³

et al. 2023

ChChT

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The goal of the study is to optimize the mode of disruption of the yeast Phaffia rhodozyma KNH 1 by a vibration-resonant low-frequency cavitator (VLC). The destruction of the cell biomass of yeast culture P. rhodozyma strain KNH 1 was carried out in VLC with water cooling, the capacity of 800 W, and resonant frequencies of vibrations of 30 Hz, 35 Hz, 37 Hz, 37.8 Hz, 39 Hz, 50 Hz, and in the presence of nitrogen in the reaction medium. Our data suggest that the yield of processed biomass by the treatment of yeast culture in VLC depends on the culture age and the mode of the treatment. Thus, for the six-day culture, we got the highest yield by its processing in VLC at 35 Hz for 75 min. The highest yield from the five-day culture was obtained after the treatment in VLC for 1 h at 37-37.8 Hz. The lowest yield of the disrupted yeast cells was obtained after 5 h of treatment in VLC at 37.8 Hz. The high level of yeast cell disruption can be used for the preparation of glucans aqueous solutions. Our data show that for such a level of disruption to treat five-day culture of P. rhodozyma in VLC at 37 Hz resonance frequency with nitrogen gas, bubbling through the reaction medium is economically profitable. For the first time, this study demonstrates the established optimal mode of destruction of yeast cells of P. rhodozyma strain KNH1 for the action of the vibration-resonance low-frequency cavitator or VLC. Ana¬lysis of the presented data indicates that the claimed me¬thod is convenient, efficient, and technologically justified.

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Section: Technologies For the Heavy High-viscosity Oils Processingmentioning

confidence: 99%

Disruption of Yeast Cells Xanthophyllomyces Dendrorhous (Phaffia Rhodozyma) by Vibration Resonant Low-Frequency Cavitator

Stefanyshyn¹,

Hunchak²,

Starchevskyy³

et al. 2023

ChChT

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“…Ng et al [8] developed a new process for refining heavy oil emulsions, which uses in-situ hydrogen produced by the water-gas reaction for insitu upgrading. J. Lam-Maldonado et al [9] showed that the API of heavy oil was increased from 13.1 to 18.3 by hydrocracking under the condition of 372 °C an hour. The crude oil was upgraded, and the residuum produced 8.6% naphthalene, 51.4% middle fraction, and 9.8% VGO.…”

mentioning

confidence: 99%

Experimental Study of Heavy Oil Upgrading of In-Situ Hydrogen

Pu,

Liu,

Tang

et al. 2023

J. Phys.: Conf. Ser.

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It was reported that hydrogen production from heavy oil reservoirs was feasible. To study the effect of in-situ hydrogen on heavy oil upgrading, a static experiment of hydrogen upgrading heavy oil under different conditions was designed with nitrogen as the control group. The composition and molar content of the produced gas was analyzed by gas chromatography (GC), the microstructure of coke was analyzed by scanning electron microscope (SEM), and the change of carbon number of oil was analyzed by gas chromatography-mass spectrometry (GC-MS). The results showed that in-situ hydrogen made heavy oil produce more light hydrocarbons. The porous coke produced by heavy oil in a hydrogen atmosphere was favorable for combustion. In addition, under the action of hydrogen, the hydrocarbon in heavy oil will be accelerated to transform from high-carbon number alkanes to low-carbon number alkanes. And the viscosity reduction effect was remarkable, the highest viscosity reduction rate reached 99.79%.

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