Upgrading Heavy Oil Using Syngas as the Hydrogen Source with Dispersed Catalysts

Xu, Yuan; Yuan, Meng; Zhao, S.; Chen, Xu

doi:10.1080/10916460802105641

Cited by 18 publications

(7 citation statements)

References 8 publications

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“…The high upgrading performance using SCW is beneficial from its special properties. SCW is a thermodynamic state of water above its critical conditions (temperature 374.3 °C and pressure 22.1 MPa). , It is a homogeneous phase that is able to increase mass transfer during the conversion process of heavy hydrocarbons due to its high diffusion and dissolving ability . Zhao et al evaluated the in situ upgrading of heavy oil using subcritical and SCW and demonstrated that SCW injection improved oil recovery by 17% and reduced heat consumption by 34% compared to conventional steam flooding .…”

Section: Introductionmentioning

confidence: 99%

Deep Insights into Heavy Oil Upgrading Using Supercritical Water by a Comprehensive Analysis of GC, GC–MS, NMR, and SEM–EDX with the Aid of EPR as a Complementary Technical Analysis

et al. 2020

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Upgrading of heavy oil in supercritical water (SCW) was analyzed by a comprehensive analysis of GC, GC–MS, NMR, and SEM–EDX with the aid of electron paramagnetic resonance (EPR) as a complementary technical analysis. The significant changes in the physical properties and chemical compositions reveal the effectiveness of heavy oil upgrading by SCW. Especially, changes of intensities of conventional EPR signals from free radicals (FRs) and paramagnetic vanadyl complexes (VO2+) with SCW treatment were noticed, and they were explained, respectively, to understand sulfur removal mechanism (by FR intensity and environment destruction) and metal removal mechanism (by VO2+ complexes’ transformation). For the first time, it was shown that electronic relaxation times extracted from the pulsed EPR measurements can serve as sensitive parameters of SCW treatment. The results confirm that EPR can be used as a complementary tool for analyzing heavy oil upgrading in SCW, even for the online monitoring of oilfield upgrading.

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Section: Introductionmentioning

confidence: 99%

Deep Insights into Heavy Oil Upgrading Using Supercritical Water by a Comprehensive Analysis of GC, GC–MS, NMR, and SEM–EDX with the Aid of EPR as a Complementary Technical Analysis

et al. 2020

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“…Though the hydrogen addition processes can retard the formation of coke and convert heavy components into valuable light fraction, the cost of hydrogen is considerable [19]. Additionally, the deposition of coke and metals can easily deactivate the expensive catalysts for upgrading heavy oil [20]. Given the problems of the technologies, novel processes need to be developed in order to upgrade heavy oil.…”

Section: Introductionmentioning

confidence: 99%

A Review of Laboratory-Scale Research on Upgrading Heavy Oil in Supercritical Water

Yan

Xiao

2015

Energies

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Abstract:With the growing demand for energy and the depletion of conventional crude oil, heavy oil in huge reserve has attracted extensive attention. However, heavy oil cannot be directly refined by existing processes unless they are upgraded due to its complex composition and high concentration of heteroatoms (N, S, Ni, V, etc.). Of the variety of techniques for heavy oil upgrading, supercritical water (SCW) is gaining popularity because of its excellent ability to convert heavy oil into valued, clean light oil by the suppression of coke formation and the removal of heteroatoms. Based on the current status of this research around the world, heavy oil upgrading in SCW is summarized from three aspects: Transformation of hydrocarbons, suppression of coke, and removal of heteroatoms. In this work, the challenge and future development of the orientation of upgrading heavy oil in SCW are pointed out.

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“…Therefore, the sources of heavy oil and petroleum fractions residue are gaining special attention for keeping the constant future fuel supply (Santos et al 2014). The oily sludge fuel processing technology provides a new route for the environmental disposal and utilization of oily sludge as a fuel source (Xu et al 2009). A new combined process of atmospheric flash evaporation with solvent deasphalting was initiated as a way forward for oily sludge treatment.…”

Section: Conversion Of Heavy Oil To Light Productsmentioning

confidence: 99%

Energy from Waste Materials and Unconventional Sources

Demırbas

2016

Waste Energy for Life Cycle Assessment

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Upgrading Heavy Oil Using Syngas as the Hydrogen Source with Dispersed Catalysts

Cited by 18 publications

References 8 publications

Deep Insights into Heavy Oil Upgrading Using Supercritical Water by a Comprehensive Analysis of GC, GC–MS, NMR, and SEM–EDX with the Aid of EPR as a Complementary Technical Analysis

Deep Insights into Heavy Oil Upgrading Using Supercritical Water by a Comprehensive Analysis of GC, GC–MS, NMR, and SEM–EDX with the Aid of EPR as a Complementary Technical Analysis

A Review of Laboratory-Scale Research on Upgrading Heavy Oil in Supercritical Water

Energy from Waste Materials and Unconventional Sources

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