Room: Poster Area
Date: Thursday, 21 May 2026
Time: 16:15 - 17:15 CEST
Session code 6CV.7
Biopolymers and bioplastics
Novel Method For Producing a Low Ash Content Lignin from Kraft Lignin
Short Introductive summary
Kraft lignin, a renewable by-product of the pulping industry, holds a significant potential as a feedstock for advanced carbon materials, polymers, and energy storage components. However, its inorganic (ash) content, typically 0.5-3 wt%, limits its use in high-performance applications such as carbon fiber and electrode materials, where ultra-low ash levels are required. Current industrial lignin separation technologies, including LignoBoost® and LignoForce™, do not provide sufficiently low-ash lignin. To address this challenge, a novel method has been developed for producing low-ash kraft lignin (0.03 wt%), achieving up to a 40-fold reduction in ash content. The environmentally friendly process offers a scalable solution for upgrading technical lignin quality. As the technology is patent pending, specific process parameters are not disclosed in the abstract, but will be shared in the conference presentation.
Presenter
Evelin SOLOMINA
Tallinn University of Technology, Chemistry and Technology Dpt., ESTONIA
Presenter's biography
PhD researcher at Tallinn University of Technology (TalTech) working on lignin valorisation, green chemistry, and sustainable biomaterials. Research focuses on environmentally friendly technologies for upgrading kraft lignin using deep eutectic solvents (DESs) for advanced material applications.
Biographies and Short introductive summaries are supplied directly by presenters and are published here unedited
Co-authors:
E. Solomina, Tallinn University of Technology, ESTONIA
H.M. Heinla, Tallinn University of Technology, ESTONIA
A. Nikonov, Tallinn University of Technology, ESTONIA
M. Kulp, Tallinn University of Technology, ESTONIA
Session reference: 6CV.7.6