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Article

An Investigation of the Techno-Economic and Environmental Aspects of Process Heat Source Change in a Refinery

1
Department of Chemical and Biochemical Engineering, Faculty of Chemical and Food Technology, Slovak University of Technology, Radlinského 9, 812 37 Bratislava, Slovakia
2
Department of Process Engineering, Faculty of Manufacturing Technologies of the TU of Kosice with a seat in Prešov, Technical University of Košice, Štúrova 31, 080 01 Prešov, Slovakia
3
SLOVNAFT, a.s., Vlčie hrdlo 1, 824 12 Bratislava, Slovakia
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Department of Thermal Technology and Gas Industry, Institute of Metallurgy, Faculty of Materials, Metallurgy and Recycling, Technical University of Košice, Letná 9, 042 00 Košice, Slovakia
*
Author to whom correspondence should be addressed.
Processes 2019, 7(11), 776; https://doi.org/10.3390/pr7110776
Received: 16 September 2019 / Revised: 15 October 2019 / Accepted: 22 October 2019 / Published: 25 October 2019
(This article belongs to the Special Issue Energy, Economic and Environment for Industrial Production Processes)
This study of process heat source change in industrial conditions has been developed to aid engineers and energy managers with working towards sustainable production. It allows for an objective assessment from energetic, environmental, and economic points of view, thereby filling the gap in the systematic approach to this problem. This novel site-wide approach substantially broadens the traditional approach, which is based mostly on “cheaper” and “cleaner” process heat sources’ application and only takes into account local changes, while neglecting the synergic effect on the whole facility’s operations. The mathematical model employed assesses the performance change of all the affected refinery parts. The four proposed aromatic splitting process layouts, serving as a case study, indicate feasible heat and condensate conservation possibilities. Although the estimated investment needed for the most viable layout is over €4.5 million, its implementation could generate benefits of €0.5–1.5 million/year, depending on the fuel and energy prices as well as on the carbon dioxide emissions cost. Its economics is most sensitive to the steam to refinery fuel gas cost ratio, as a 10% change alters the resulting benefit by more than €0.5 million. The pollutant emissions generated in the external power production process contribute significantly to the total emissions balance. View Full-Text
Keywords: fuel; gas; refinery; thermal efficiency; process heat; heat conservation; aromatics fractionation; cogeneration; external pollutant emissions fuel; gas; refinery; thermal efficiency; process heat; heat conservation; aromatics fractionation; cogeneration; external pollutant emissions
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MDPI and ACS Style

Variny, M.; Jediná, D.; Kizek, J.; Illés, P.; Lukáč, L.; Janošovský, J.; Lesný, M. An Investigation of the Techno-Economic and Environmental Aspects of Process Heat Source Change in a Refinery. Processes 2019, 7, 776. https://doi.org/10.3390/pr7110776

AMA Style

Variny M, Jediná D, Kizek J, Illés P, Lukáč L, Janošovský J, Lesný M. An Investigation of the Techno-Economic and Environmental Aspects of Process Heat Source Change in a Refinery. Processes. 2019; 7(11):776. https://doi.org/10.3390/pr7110776

Chicago/Turabian Style

Variny, Miroslav, Dominika Jediná, Ján Kizek, Peter Illés, Ladislav Lukáč, Ján Janošovský, and Marián Lesný. 2019. "An Investigation of the Techno-Economic and Environmental Aspects of Process Heat Source Change in a Refinery" Processes 7, no. 11: 776. https://doi.org/10.3390/pr7110776

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