Paper details

Title:

Microwave-assisted HTC and Gasification: Circular Solutions for Waste-to-Energy

Author(s):

Guerrero, J., Aragón-Briceño, C., González García, I., Espinoza, W.D., Torres, R., Jarauta-Córdoba, C., Malinowski, S.

Document(s):

Abstract:

Within the Wood2Wood project, CIRCE Technology Centre is pioneering a novel approach to valorise different wood wastes through microwave-assisted hydrothermal carbonization (HTC) and fluidized bed gasification. This study aims to transform these wastes into hydrochar and a H2- and CO2- enriched syngas. It can serve as feedstock for chemical production, expanding applications beyond typical syngas uses. The presented work seeks to optimize the Microwave assisted HTC (MW-HTC) process for efficient hydrochar production and enhanced gasification conditions to produce dodecanol via a biological fermentation process. Some preliminary insights are presented in the following paragraphs. Results demonstrate efficient hydrochar and syngas production coming from a high-moisture industrial waste, such as paper and pulp industry sludge (PPS). Specifically, MW-HTC at 175 °C yields 54 % hydrochar; subsequent steam-gasification delivers 37 vol % H2 syngas. The integration of microwave assisted HTC and gasification offers an electrified, decarbonized pathway to waste valorisation, providing a sustainable solution for managing complex industrial residues. The high moisture content makes these wastes not suitable for typical valorisation routes such as landfilling or incineration This innovative strategy not only addresses waste management and circularity, promoting environmental sustainability by diverting waste from landfills and lowering greenhouse gas emissions.

Keywords:

gasification, syngas, valorisation, microwave, hydrochar, hydrothermal carbonization

Topic:

Biomass Conversion for Bioenergy

Subtopic:

Gasification for synthesis gas production

Event:

33rd European Biomass Conference and Exhibition

Session:

4BV.5.8

Pages:

757 - 760

ISBN:

978-88-89407-25-7

Paper DOI:

10.5071/33rdEUBCE2025-4BV.5.8

Price:

FREE