Thumbnail

INPACTUS - Black Liquor

On going
About
Black liquor is a pulp mill effluent from wood cooking with a solid content of 15-18 wt.%, which is mostly lignin. The present study focuses the electrolysis of black liquor for energy recovery. The process has several economic and environmental advantages, as it simultaneously generates a clean fuel (hydrogen) at the cathode and a precipitated material with economic value (lignin) at the anode surface. Platinum, nickel, and AISI 304 stainless steel bulk electrodes are tested for black liquor electrolysis, both as anodes and as cathodes.Voltammetric methods are used to study the lignin oxidation in the black liquor at room temperature, allowing the calculation of kinetic parameters such as the charge transfer coefficient and the number of exchanged electrons. The hydrogen evolution reaction in the black liquor is also evaluated.A small-scale laboratory black liquor electrolyzer using Ni plates is assembled and its operation parameters are evaluated. wastewater treatment sludges from the pulp industry for further processing in Liquid Biofuels.
Keywords:
Circular economy, Eco-innovative materials, Engineering, Processes and Systems Modelling, Resources and Raw Materials, Reuse, Reduce and Recycle
Start Date:
End Date:
CERENA Role:
Partner

Coordinator/Local PI

CERENA Team

Proponent Institution

Navigator

Partners

Raiz

Funding Programme

POCI-01-0247-FEDER-021874

Total Funding
14 600 000,00 €
CERENA Funding
99 764,30 €

Funding Entities

Useful Links

Useful Files