Current situation of emerging technologies for upgrading of heavy oils

Castañeda, Luis C.; Muñoz, José A.D.; Ancheyta, Jorge

doi:10.1016/j.cattod.2013.05.016

Cited by 192 publications

(80 citation statements)

References 8 publications

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“…The bio-oil is sent to an upgrading unit to completely deoxygenate it and crack the heavier products into gasoline and diesel through hydrotreating and hydrocracking [66]. The product oil from brown algal HTL has typically lower oxygen content and higher energy density than the oils produced from fast pyrolysis [62], nevertheless, still significant quantities of oxygen, nitrogen, and sulfur from high contents in the feedstock should be further treated.…”

Section: Bio-oilmentioning

confidence: 99%

Marine brown algae: A conundrum answer for sustainable biofuels production

Song

Pham

Seon

et al. 2015

Renewable and Sustainable Energy Reviews

112

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Section: Bio-oilmentioning

confidence: 99%

Marine brown algae: A conundrum answer for sustainable biofuels production

Song

Pham

Seon

et al. 2015

Renewable and Sustainable Energy Reviews

112

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“…Unfortunately, the extraction process usually consumes amounts of organic solvents and the mass loss of heavy oil reaches 30% [14,15]. Other techniques of carbon rejection, especially coking, are also preferred by refineries due to their lower investment [3,16]. However, with the decreasing demand for fuel oil, these processes will face a dilemma, as small amounts of liquid products but a great deal of coke are formed from these thermal processes [17,18].…”

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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“…However, in the last decade, the cost of oil and the increasing production of HO and EHO have altered opinions about this topic (Castaneda et al 2014). These types of crude oil have disadvantages in their physical properties compared with light crude oil, hindering production from reservoirs.…”

Section: Introductionmentioning

confidence: 99%

Kinetics and mechanisms of the catalytic thermal cracking of asphaltenes adsorbed on supported nanoparticles

et al. 2016

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The production of heavy and extra-heavy oil is challenging because of the rheological properties that crude oil presents due to its high asphaltene content. The upgrading and recovery processes of these unconventional oils are typically water and energy intensive, which makes such processes costly and environmentally unfriendly. Nanoparticle catalysts could be used to enhance the upgrading and recovery of heavy oil under both in situ and ex situ conditions. In this study, the effect of the Ni-Pd nanocatalysts supported on fumed silica nanoparticles on post-adsorption catalytic thermal cracking of n-C 7 asphaltenes was investigated using a thermogravimetric analyzer coupled with FTIR. The performance of catalytic thermal cracking of n-C 7 asphaltenes in the presence of NiO and PdO supported on fumed silica nanoparticles was better than on the fumed silica support alone. For a fixed amount of adsorbed n-C 7 asphaltenes (0.2 mg/m 2 ), bimetallic nanoparticles showed better catalytic behavior than monometallic nanoparticles, confirming their synergistic effects. The corrected OzawaFlynn-Wall equation (OFW) was used to estimate the effective activation energies of the catalytic process. The mechanism function, kinetic parameters, and transition state thermodynamic functions for the thermal cracking process of n-C 7 asphaltenes in the presence and absence of nanoparticles are investigated.

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Current situation of emerging technologies for upgrading of heavy oils

Cited by 192 publications

References 8 publications

Marine brown algae: A conundrum answer for sustainable biofuels production

Marine brown algae: A conundrum answer for sustainable biofuels production

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

Kinetics and mechanisms of the catalytic thermal cracking of asphaltenes adsorbed on supported nanoparticles

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