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Laboratory investigation of nanoscale dispersed catalyst for inhibition coke formation and upgrading of heavy oil during THAI process

Almarshed, Abdullah (2016)
Ph.D. thesis, University of Birmingham.

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It has previously been shown that in situ upgrading of heavy oil by Toe-to-Heel Air Injection (THAI) can be augmented by surrounding the horizontal production well with an annulus of pelleted catalyst. Despite the further upgrading achieved with this configuration, the accumulation of coke and metals deposits on the catalyst and pore sites, resulting from cracking of the heavy oil, have a detrimental effect on the catalyst activity, life span and process. An alternative contacting pattern between the oil and transition metal dispersed catalysts was investigated using a stirred batch reactor, to mitigate the above mentioned challenges. The effects of different dispersed catalysts, hydrogen sources and tetralin hydrogen donor solvent were also investigated. The Taguchi method was applied to optimize the effect of reaction factors and select the optimum values that maximize level of heavy oil upgrading while suppressing coke yield. Detailed optimization of the reaction conditions for in situ catalytic upgrading of heavy oil was carried out over the following ranges of operating variables; temperature 355 – 425 \(^o\)C, reaction time 20 – 80 min, agitation 200 – 900 rpm, initial hydrogen pressure 10 – 50 bar, and iron metal loading 0.03 – 0.4 wt%.

Type of Work:Ph.D. thesis.
Supervisor(s):Wood, Joseph and Leeke, Gary
School/Faculty:Colleges (2008 onwards) > College of Engineering & Physical Sciences
Department:School of Chemical Engineering
Additional Information:

Abdullah Al-Marshed, Abarasi Hart, Gary Leeke, Malcolm Greaves and Joseph Wood, (2015) Optimization of Heavy Oil Upgrading using Dispersed Nanoparticulate Iron Oxide as a Catalyst, Energy & Fuels, 29, 6306-6316.

Abdullah Al-Marshed, Abarasi Hart, Gary Leeke, Malcolm Greaves and Joseph Wood, (2015) Effectiveness of Different Transition Metal Dispersed Catalysts for In-
Situ Heavy Oil Upgrading, Industrial & Engineering Chemistry Research, 54, 10645-10655.

Subjects:TP Chemical technology
Institution:University of Birmingham
ID Code:6470
This unpublished thesis/dissertation is copyright of the author and/or third parties. The intellectual property rights of the author or third parties in respect of this work are as defined by The Copyright Designs and Patents Act 1988 or as modified by any successor legislation. Any use made of information contained in this thesis/dissertation must be in accordance with that legislation and must be properly acknowledged. Further distribution or reproduction in any format is prohibited without the permission of the copyright holder.
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