Heavy oil cracking in the presence of steam and nanodispersed catalysts based on different metals

Yeletsky, Petr M.; Zaikina, Olesya O.; Sosnin, G. A.; Кукушкин, Р. Г.; Yakovlev, V. А.

doi:10.1016/j.fuproc.2019.106239

Cited by 49 publications

(15 citation statements)

References 66 publications

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“…Environmental pollution and the energy crisis caused by excessive use of fossil fuels are the two major problems that have seriously affected the sustainable development of human being in the world today. Catalytic technologies play a critical role in solving two above-mentioned problems, which have been extensively used in many fields, such as chemical industry, production, 1,2 clean energy technologies 3,4 and environmental treatment. 5,6 Traditional supported metal catalysts, especially noble metals, including ruthenium (Ru), rhodium (Rh), palladium (Pd), silver (Ag), osmium (Os), iridium (Ir), platinum (Pt), gold (Au), have excellent catalytic performance.…”

Section: Introductionmentioning

confidence: 99%

DFT calculations for single-atom confinement effects of noble metals on monolayer g-C₃N₄ for photocatalytic applications

et al. 2021

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Section: Introductionmentioning

confidence: 99%

DFT calculations for single-atom confinement effects of noble metals on monolayer g-C₃N₄ for photocatalytic applications

et al. 2021

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“…It should be noted that the Fe 3 O 4 nanoparticles dispersed on MWCNT have a high oxygen storage capacity (OSC) along with an adequate oxidation–reduction property (redox) . These properties make Fe 3 O 4 able to oxidize hydrocarbons molecules by releasing hydrogen species from water .…”

Section: Resultsmentioning

confidence: 99%

“…It should be noted that the Fe 3 O 4 nanoparticles dispersed on MWCNT have a high oxygen storage capacity (OSC) along with an adequate oxidation−reduction property (redox). 49 These properties make Fe 3 O 4 able to oxidize hydrocarbons molecules by releasing hydrogen species from water. 49 Thus, it can be inferred that the outstanding performance of Fe 3 O 4 / MWCNT@EFHIA as a catalyst can be ascribed to the synergy between the catalyst components in enhancing the aquathermolysis process.…”

Section: Effect Of Ionic Liquid Modified Magnetic Mwcnt Catalyst On T...mentioning

confidence: 99%

Catalytic Aquathermolysis for Altering the Rheology of Asphaltic Crude Oil Using Ionic Liquid Modified Magnetic MWCNT

et al. 2020

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The use of asphaltic crude oil resources as an alternative to offset light oil supplies over the next years has attracted oil field attention. However, its high viscosity greatly impedes the production of asphaltic crude oil from wells and constitutes an obstacle, especially during transportation and refining operations. Thus, catalytic aquathermolysis has been introduced as an attractive and green technique for upgrading the asphaltic crude oil at elevated temperatures by reducing the asphaltic crude oil viscosity. In this study, magnetic multiwalled carbon nanotubes (MWCNTs) were prepared and modified with 1-ethyl-3-(3-formyl-4-hydroxybenzyl)-1H-imidazol-3-ium acetate (EFHIA). The results revealed the rheology results revealed that the viscosity of crude oil was reduced by 75.9% when compared to thermally treated blank at the same degree after 2 h of operation using Fe3O4/MWCNT@EFHIA as a catalyst. The asphaltene, resin, and sulfur measurements revealed that the percentages of these compounds were reduced to 37%, 43%, and 47%, respectively, upon using 0.2% Fe3O4/MWCNT@EFHIA as a catalyst at 200 °C for 2 h.

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“…Factor 5 was characterized by high loads of Cr, Co, Ni, Cu, Sr, Ba, and Pb, indicating industrial emissions (Cai et al, 2017;Chang et al, 2018;Liu et al, 2019;Rai et al, 2020). High loads of Co and Ni, a low load of EC, and no OC indicated heavy oil refinery processes (Zhang et al, 2007;Rao et al, 2012;Guo et al, 2016;Yeletsky et al, ). Similar to factor 5, factor 6 was also observed with high loads of Cr, Cu, and Pb, but it also had high contributions of Mn, Zn, and Se.…”

Section: Sources Of Dissolved Fe and Total Fementioning

confidence: 99%

Sources and processes of iron aerosols in a megacity in Eastern China

Zhu

Wang

et al. 2022

Atmos. Chem. Phys.

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Abstract. Iron (Fe) in aerosol particles is a major external source of micronutrients for marine ecosystems and poses a potential threat to human health. To understand the impacts of aerosol Fe, it is essential to quantify the sources of dissolved Fe and total Fe. In this study, we applied receptor modeling for the first time to apportion the sources of dissolved Fe and total Fe in fine particles collected under five different weather conditions in the Hangzhou megacity of Eastern China, which is upwind of the East Asian outflow. Results showed that Fe solubility (dissolved Fe to total Fe) was the largest on fog days (6.7 ± 3.0 %), followed by haze (4.8 ± 1.9 %), dust (2.1 ± 0.7 %), clear (1.9 ± 1.0 %), and rain (0.9 ± 0.5 %) days. Positive matrix factorization (PMF) analysis suggested that industrial emissions were the largest contributor to dissolved Fe (44.5 %–72.4 %) and total Fe (39.1 %–55.0 %, except for dust days) during haze, fog, dust, and clear days. Transmission electron microscopy analysis of individual particles showed that > 75 % of Fe-containing particles were internally mixed with acidic secondary aerosol species on haze, fog, dust, and clear days. Furthermore, Fe solubility showed significant positive correlations with aerosol acidity/total Fe and liquid water content. These results indicated that the wet surface of aerosol particles promotes heterogeneous reactions between acidic species and Fe aerosols, contributing to a high Fe solubility.

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Heavy oil cracking in the presence of steam and nanodispersed catalysts based on different metals

Cited by 49 publications

References 66 publications

DFT calculations for single-atom confinement effects of noble metals on monolayer g-C₃N₄ for photocatalytic applications

DFT calculations for single-atom confinement effects of noble metals on monolayer g-C₃N₄ for photocatalytic applications

Catalytic Aquathermolysis for Altering the Rheology of Asphaltic Crude Oil Using Ionic Liquid Modified Magnetic MWCNT

Sources and processes of iron aerosols in a megacity in Eastern China

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Heavy oil cracking in the presence of steam and nanodispersed catalysts based on different metals

Cited by 49 publications

References 66 publications

DFT calculations for single-atom confinement effects of noble metals on monolayer g-C3N4 for photocatalytic applications

DFT calculations for single-atom confinement effects of noble metals on monolayer g-C3N4 for photocatalytic applications

Catalytic Aquathermolysis for Altering the Rheology of Asphaltic Crude Oil Using Ionic Liquid Modified Magnetic MWCNT

Sources and processes of iron aerosols in a megacity in Eastern China

Contact Info

Product

Resources

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DFT calculations for single-atom confinement effects of noble metals on monolayer g-C₃N₄ for photocatalytic applications

DFT calculations for single-atom confinement effects of noble metals on monolayer g-C₃N₄ for photocatalytic applications