Techno-Economic Analysis of Pressurized Oxy-Fuel Combustion of Petroleum Coke

Hachem Hamadeh, Sannan Y. Toor, Peter L. Douglas, S. Mani Sarathy, Robert W. Dibble and Eric Croiset
Additional contact information
Hachem Hamadeh: Chemical Engineering Department, University of Waterloo, Waterloo, Ontario N2L 3G1, Canada
Sannan Y. Toor: Chemical Engineering Department, University of Waterloo, Waterloo, Ontario N2L 3G1, Canada
Peter L. Douglas: Chemical Engineering Department, University of Waterloo, Waterloo, Ontario N2L 3G1, Canada
S. Mani Sarathy: Clean Combustion Research Center, Physical Sciences and Engineering Division, King Abdullah University of Science and Technology, Thuwal 23955-6900, Saudi Arabia
Robert W. Dibble: Clean Combustion Research Center, Physical Sciences and Engineering Division, King Abdullah University of Science and Technology, Thuwal 23955-6900, Saudi Arabia
Eric Croiset: Chemical Engineering Department, University of Waterloo, Waterloo, Ontario N2L 3G1, Canada

Energies, 2020, vol. 13, issue 13, 1-12

Abstract: Petroleum coke (petcoke) is a by-product of heavy petroleum refining, with heating values comparable to that of coal. It is readily available in oil-producing countries such as the United States of America (USA) and the Kingdom of Saudi Arabia (KSA) at minimum costs and can be used as an inexpensive fossil fuel for power generation. Oxy-petcoke combustion is an attractive CO 2 capture option as it avoids the use of additional absorption units and chemicals, and results in a CO 2 + H 2 O flue gas stream that is compressed and dehydrated in a CO 2 capture and purification unit (CO 2 CPU). The additional cost of the CO 2 CPU can be reduced through high pressure combustion. Hence, this paper reports a techno-economic analysis of an oxy-petcoke plant with CO 2 capture simulated at pressures between 1 and 15 bars in Aspen Plus TM based on USA and KSA scenarios. Operating at high pressures leads to reduced equipment sizes and numbers of units, specifically compressors in CO 2 CPU, resulting in increased efficiencies and decreased costs. An optimum pressure of ~10 bars was found to maximize the plant efficiency (~29.7%) and minimize the levelized cost of electricity ( LCOE ), cost of CO 2 avoided and cost of CO 2 captured for both the USA and KSA scenarios. The LCOE was found to be moderately sensitive to changes in the capital cost (~0.7% per %) and increases in cost of petcoke (~0.5% per USD/tonne) and insensitive to the costs of labour, utilities and waste treatment.

Keywords: CO 2 capture; oxy-fuel combustion; pressurized combustion; petroleum coke; AspenPlus TM simulation (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2020
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (4)

Downloads: (external link)
https://www.mdpi.com/1996-1073/13/13/3463/pdf (application/pdf)
https://www.mdpi.com/1996-1073/13/13/3463/ (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:gam:jeners:v:13:y:2020:i:13:p:3463-:d:380313

Access Statistics for this article

Energies is currently edited by Ms. Agatha Cao

More articles in Energies from MDPI
Bibliographic data for series maintained by MDPI Indexing Manager ().