Soot formation and ignition properties of diesel fuels with solketal in an injection chamber

Türck J, Rieß S, Strauß L, Schmitt F, Türck R, Ruck W, Wensing M, Krahl J (2026)

Publication Type: Journal article

Publication year: 2026

Journal

Book Volume: 30

Pages Range: 101714

Article Number: 101714

DOI: 10.1016/j.ecmx.2026.101714

Abstract

The global energy transition drives an enhanced emphasis on innovative fuel design approaches. Novel renewable fuel components are being sought that are drop-in compatible and exhibit synergistic interactions within fuel components. Isopropylidene glycerin (solketal) is a promising candidate, offering favorable chemical and physical properties due to its high molecular oxygen content. This study investigates the soot formation tendency and ignition behavior of solketal in a high pressure and high temperature injection chamber. Its combustion characteristics under varying injection parameters and chemical influences were evaluated in comparison with 1,3-dioxolane and a reference fossil diesel fuel. Additionally, the influence of solketal in a binary biodiesel-solketal system and in Diesel R33 was examined. Solketal exhibited a soot-reducing effect alongside an increased ignition delay. Comparison with 1,3-dioxolane suggests that the enhanced oxidative reactivity is attributable to the hydroxyl functionality. This interpretation is supported by low-temperature combustion indicators and observations in the biodiesel-solketal system. The Diesel R33 results showed that a concentration of 3 wt% solketal provides the most favorable performance characteristics. This demonstrates how targeted blending strategies can unlock beneficial combustion effects. Such insights open promising pathways for developing advanced, future-ready fuel formulations.

Authors with CRIS profile

Involved external institutions

Leuphana Universität Lüneburg Germany (DE) Tecosol GmbH Germany (DE) Hochschule Ostwestfalen-Lippe - University of Applied Sciences Germany (DE)

How to cite

APA:

Türck, J., Rieß, S., Strauß, L., Schmitt, F., Türck, R., Ruck, W.,... Krahl, J. (2026). Soot formation and ignition properties of diesel fuels with solketal in an injection chamber. Energy Conversion and Management: X, 30, 101714. https://doi.org/10.1016/j.ecmx.2026.101714

MLA:

Türck, Julian, et al. "Soot formation and ignition properties of diesel fuels with solketal in an injection chamber." Energy Conversion and Management: X 30 (2026): 101714.

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