Electric arc gasification of pyrolysis oil with the production of hydrogen-enriched synthesis gas and carbon nanomaterial

• Published in: Fuel processing technology Vol. 245; p. 107746
• Main Authors: Larionov, K.B., Povalyaev, P.V., Kaltaev, A.Zh, Slysarsky, K.V., Gorshkov, A.S., Gubin, V.E., Stoyanovskii, V.O., Pak, A.Ya
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 15.06.2023
• Subjects: Carbon material; Gasification; Pyrolysis oil; Synthesis gas; Vacuum-free electric arc discharge; Pyrolysis oil; Vacuum-free electric arc discharge; Gasification; Carbon material; Synthesis gas
• ISSN: 0378-3820; 1873-7188
• DOI: 10.1016/j.fuproc.2023.107746

Environmentally friendly conversion of waste and energy carriers into useful and energy-efficient products is one of the forefront areas worldwide. In this paper, we propose a new method for obtaining carbon nanomaterial and hydrogen-enriched synthesis gas by electric arc gasification of pyrolysis oil in an open-air environment without pollutant emissions. As initial samples, we used petroleum (as reference sample) and pyrolysis oil – liquid pyrolysis products of wood waste (pine sawdust), waste tires and oil sludge recycling. The choice of materials was caused by the search for new approaches to waste conversion, which will allow to obtain environmentally friendly energy and to reduce carbon footprint of various production cycles. The synthesis gas formed by electric arc gasification contained hydrogen in an amount exceeding 50 vol%. The carbon material was represented by nanosized objects with a graphite-like structure and characteristics similar to carbon black, which acted as a solid-phase product. [Display omitted] •Feasibility of electric arc gasification of pyrolysis oil in air was proven.•Self–screening effect by the CO2 was observed during electric arc gasification in air.•A gas with up to 54 vol% of H2 is generated during processing of liquid hydrocarbons.•Nanosized carbonaceous material was characterized by a graphite-like structure.•Carbonaceous material had 64–101 m2/g specific surface and 0.16–0.23 cm3/g porosity.