Reduced coke formation and aromaticity due to chloroperoxidase-catalyzed transformation of asphaltenes from Maya crude oil

Ayala, Marcela; Hernández-López, Edna L.; Perezgasga, Lucía; Vázquez-Duhalt, Rafael

doi:10.1016/j.fuel.2011.06.067

Cited by 34 publications

(23 citation statements)

References 40 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Furthermore, asphaltene incorporates large amounts of heteroatoms (N, S, Ni, and V) [64]. In refining processes, asphaltene is prone to form coke and deactivate catalysts [65,66]. The goal of the upgrading of asphaltene in SCW is to convert asphaltene into light fraction, as much as possible, via the effective and timely extraction and fraction of asphaltene nucleus.…”

Section: Asphaltenementioning

confidence: 99%

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

Yan

Xiao

2015

Energies

View full text Add to dashboard Cite

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.

show abstract

Section: Asphaltenementioning

confidence: 99%

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

Yan

Xiao

2015

Energies

View full text Add to dashboard Cite

show abstract

“…It usually consists of highly condensed polyaromatic macromolecules bearing long aliphatic chains and alicyclic substituents (Mandal et al, 2012a, b). In the refining processes, asphaltene is prone to form coke and deactivate catalyst (Akmaz et al, 2012;Ayala et al, 2012;. Moreover, high concentrations of heteroatoms (N, S) and metal elements (Ni, V) in asphaltene will seriously interfere with the refining processes .…”

Section: Introductionmentioning

confidence: 99%

Kinetic and reaction pathway of upgrading asphaltene in supercritical water

Yan

Xiao

2015

Chemical Engineering Science

View full text Add to dashboard Cite

“…Heavy oil contains a significant portion of highly polar macromolecular compounds, such as asphaltene (1000-200,000 g/mol) [5]. Asphaltene, known as the most complex and recalcitrant fraction in heavy oil, is prone to form coke and deactivate catalysts in heavy oil upgrading processes [6][7][8][9]. Moreover, high concentrations of heteroatoms (N, S), metal elements (Ni, V), and polar compounds in asphaltene seriously interfere with upgrading heavy oil [10,11].…”

Section: Introductionmentioning

confidence: 99%