Content of Selected Compounds in the Exhaust Gas of a Naturally Aspirated CI Engine Fueled with Diesel–Tire Pyrolysis Oil Blend

Leszek Chybowski, Marcin Szczepanek (), Waldemar Kuczyński, Iwona Michalska-Pożoga, Tomasz Pusty, Piotr Brożek and Robert Pełech
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Leszek Chybowski: Department of Marine Propulsion Plants, Faculty of Marine Engineering, Maritime University of Szczecin, ul. Willowa 2, 71-650 Szczecin, Poland
Marcin Szczepanek: Department of Power Engineering, Faculty of Marine Engineering, Maritime University of Szczecin, ul. Willowa 2, 71-650 Szczecin, Poland
Waldemar Kuczyński: Department of Power Engineering, Faculty of Mechanical and Energy Engineering, Koszalin University of Technology, ul. Racławicka 15-17, 75-620 Koszalin, Poland
Iwona Michalska-Pożoga: Department of Food Processes and Engineering, Faculty of Mechanical and Energy Engineering, Koszalin University of Technology, ul. Racławicka 15-17, 75-620 Koszalin, Poland
Tomasz Pusty: Department of Materials Manufacturing Technologies, Faculty of Marine Engineering, Maritime University of Szczecin, ul. Willowa 2, 71-650 Szczecin, Poland
Piotr Brożek: Department of Electrical Engineering and Power Electronics, Faculty of Mechatronics and Electrical Engineering, Maritime University of Szczecin, ul. Willowa 2, 71-650 Szczecin, Poland
Robert Pełech: Department of Chemical Organic Technology and Polymeric Materials, Faculty of Chemical Technology and Engineering, West Pomeranian University of Technology in Szczecin, 10 Pulaski Street, 70-322 Szczecin, Poland

Energies, 2025, vol. 18, issue 10, 1-24

Abstract: This paper presents the results of naturally aspirated compression ignition (CI) internal combustion engine (ICE) bench tests of fuels in the form of a blend of diesel oil with recycled oil (RF) in the form of tire pyrolysis oil (TPO) as an admixture with the content of pyrolytic oil with the blend being 10% m/m (D90+RF10). The results relate to reference conditions in which the engine is fed with pure diesel oil (D100). The experiment included the evaluation of engine performance and the determination of the content of selected substances in the exhaust gas for brake-set engine loads equal to 5 Nm, 10 Nm, 15 Nm, and 20 Nm. For each load, engine operating parameters and emissions of selected exhaust components were recorded at preset speeds in the range of 1400–2400 rpm for each engine load. The hourly fuel consumption and exhaust gas temperature were determined. The contents of CO 2 , CO, and HC in the exhaust gas were measured. The consumption of D90+RF10 increased by 56%, and CO 2 emissions were 21.7% higher at low loads. The addition of sulfur-containing pyrolytic oil as an admixture to diesel oil resulted in SO x emissions. The results show the suitability of pyrolytic oil and the possibility of using it as an admixture to fossil fuels. In order to meet SO x emission levels in land-based installations and for vehicle propulsion, it is necessary to desulfurize fuel or desulfurize deSO x exhaust gas systems. The CO and HC emission levels in the exhaust gases from the engine powered by the D90+RF10 fuel meet current requirements for motor vehicle exhaust composition.

Keywords: diesel oil; recycled oil; tire pyrolytic oil; fuel blends; engine performance; CO 2 emission; CO emission; HC emission; hydrocarbons (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: 2025
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