Work

Nitrogen-Free Co-Gasification of Fermentation Residues

Year: 2025

Type: article

Abstract: The limited usage of fermentation residues, due to increasingly stringent legal requirements, demands novel routes of utilization for these feedstocks. To the best of our knowledge, for the first time, a mixture of fermentation residues and wood chips is used as feedstock in a fixed-bed gasifier, using only O2/CO2 mixtures as gasifying agent. The maximum O2 concentration achieved was 31.6 Vol.-%. Pronounced process stability was achieved with a cold gas efficiency of about 94%, possibly due to CO2 conversion within the process. The heating value of the produced synthesis gas was 8.5 MJ/m3i.N.dry, with increased amounts of carbon monoxide and methane when compared to air-blown operations.

Source: Energies

DOI: 10.3390/en18092173

Authors: Clemens Schmittmann, Felix Öffner, Peter Quicker

Institution: RWTH Aachen University

Language: English

Topic: Thermochemical Biomass Conversion Processes

Subfield: Biomedical Engineering

Field: Engineering

Domain: Physical Sciences

SDGs: Responsible consumption and production, Affordable and clean energy, Climate action

Open Access status: gold

Estimated APC paid: $3,137