Production of transportation fuels via hydrotreating of scrap tires pyrolysis oil

• Published in: Chemical engineering journal (Lausanne, Switzerland : 1996) Switzerland : 1996), 2023-03, Vol.460, p.141764, Article 141764
• Main Authors: Straka, Petr, Auersvald, Miloš, Vrtiška, Dan, Kittel, Hugo, Šimáček, Pavel, Vozka, Petr
• Format: Article
• Language: English
• Subjects: Hydrotreating; Pyrolysis oil; Scrap tires; Transportation fuels
• ISSN: 1385-8947; 1873-3212
• DOI: 10.1016/j.cej.2023.141764

[Display omitted] •High-quality alternative transportation fuels components from scrap tires were obtained.•Naphtha fraction can be utilized as a gasoline pool component.•Kerosene fraction can be blended with HEFA biofuel to get jet fuel.•A blending of diesel fraction with HVO biofuel can result in high-quality diesel fuel.•Bottom residue can be utilized as a component of VLSFO and ULSFO in marine transportation. The hydrotreating of scrap tires pyrolysis oil over commercial Ni-Mo/Al2O3 catalyst was researched for the best processing scheme allowing the production of high-quality alternative transportation fuels components of gasoline, jet, diesel, and marine fuel. Despite the initial high content of olefins, aromatics, sulfur, and nitrogen in pyrolysis oil, fuel components obtained by redistillation after the hydrotreating at 360 °C and 10 MPa met the majority of standard fuel specifications. Although the octane number of the naphtha fraction was lower, this fraction can be used as acomponent of the gasoline pool directly or after the catalytic reforming. Kerosene fraction can be utilized as jet fuel after the additional mild hydrotreatment or blending with hydroprocessed esters and fatty acids (HEFA) to decrease aromatics content. Diesel fraction can be blended with hydrotreated vegetable oils (HVO) to fulfill the density and cetane index specification. The bottom residue can be utilized as a low-sulfur fuel oil component in marine transportation.