Exploring the conversion limits of bitumen visbreaking through a molecular reaction model

A Alvarez-Majmutov - Energy & Fuels, 2023 - ACS Publications
In this work, a visbreaking reaction model was extended to represent a regime where coke
formation becomes significant (> 1 wt%) in order to better understand the conversion limits …

[HTML][HTML] Mitigation of Asphaltene Deposit Formation via Chemical Additives: A Review

D Stratiev, R Nikolova, A Veli, I Shishkova, V Toteva… - Processes, 2025 - mdpi.com
The deposition of asphaltenes in the petroleum industry has been found to be a significant
factor affecting the profitability of petroleum production and refining. For this reason, many …

Visbreaking of heavy oil with high metal and asphaltene content

LT Wang, YY Hu, LH Wang, YK Zhu, HJ Zhang… - Journal of Analytical and …, 2021 - Elsevier
The visbreaking of Canadian oil sands bitumen (OSB) and Tahe atmospheric residue (AR)
with high metal and asphaltene content was studied to deepen the understanding of the …

Reaction kinetics analysis of heavy oil visbreaking with reduced diffusion limitation

HJ Zhang, YY Hu, LT Wang, YK Zhu, ZB Huang… - Journal of Analytical and …, 2021 - Elsevier
To understand the reaction behavior of heavy oil visbreaking with reduced diffusion
limitation, the visbreaking of an atmospheric residual oil in the solvent of supercritical …

Rigorous deasphalting, autoxidation, and bromination pretreatment methods for oilsands bitumen derived asphaltenes to improve carbon fiber production

Y Kim, D Leistenschneider, A de Klerk, W Chen - Energy & Fuels, 2021 - ACS Publications
Carbon fiber production from asphaltenes was identified as a potential noncombustion
process to add value to the n-pentane insoluble fraction of oilsands bitumen. Methods to …

Relationship between olefins and coking propensity of heavy residual oil derived from vacuum residue thermal cracking products

F Wang, Y Yu, BW Biney, Z Zhang, H Liu, K Chen… - Fuel, 2023 - Elsevier
Olefins, especially olefinic-bond-containing aromatics (OAH) may have a significant effect on
the coking propensity of heavy residual oil (RO) derived from vacuum residue (VR) thermal …

Thermal conversion modeling of visbreaking at temperatures below 400° C

A de Klerk - Energy & Fuels, 2020 - ACS Publications
This paper is in honor of Michael (Mike) T. Klein, and his contributions to the modeling of
thermal conversion are highlighted within the context of this study. The question that was …

An optimized thermal cracking approach for onsite upgrading of bitumen

M Salehzadeh, T Kaminski, MM Husein - Fuel, 2022 - Elsevier
Onsite partial upgrading is a promising strategy for facilitating pipeline transportation of
bitumen without the use of diluent. In the present work, a one-step treatment using an …

Continuous visbreaking of heavy oil in the presence of hot compressed water

YJ Xu, YF Sun, JY Yang, ZB Huang… - Industrial & Engineering …, 2022 - ACS Publications
The dealkylation-based visbreaking of heavy oil in a hot compressed water (HCW)
environment was investigated in a tubular reactor at 400° C and 18 MPa. Under the applied …

Impact of co-feeding cracked light products on visbreaking of vacuum residue deasphalted oil

JH Tannous, Y Yan, A De Klerk - Fuel, 2022 - Elsevier
The impact of co-feeding light cracked products on thermal conversion was investigated due
to reports that indicated suppression of coking and other benefits during such operation …