Title:
Supercritical Water Gasification of Wastewater Generated from Hydrothermal Liquefaction of Food Waste
Author(s):
Demey, H., Guibal, L.
Document(s):
Paper
Abstract:
The main goal of this work is the treatment of wastewater generated from HTL process, in order to remove the organic carbon content and to enhance the hydrogen production by SCWG. The results of this work are in the frame of the WASTE2ROAD project which aims to develop a new generation of cost-effective biofuels from a range of low-cost biogenic residues, and waste fractions (contaminated wood, black liquor from pulp and paper industry, and municipal solid organic waste including food residues). The results showed that the organic carbon concentration in the waste decreased notably by increasing the temperature in the SCWG process (at 600 °C the conversion yield was >87 % w/w). The utilization of a nickel-based catalyst improved the hydrogen yield of the produced gas. Highlights: SCWG process enhances the removal of organic carbon content in HTL wastewater; SCWG can be used as a process for HTL wastewater treatment; The total removal of organic carbon from HTL wastewater by SCWG was >89 %; SCWG process allows valorizing the HTL wastewater for gas manufacturing; The utilization of nickel/alumina-based catalyst enhances the H2 yield in the gas.
Keywords:
wastewater, food waste, hydrothermal liquefaction (HTL), supercritical water gasification (SCWG)
Topic:
Industry Track
Subtopic:
Thermochemical biomass conversion
Event:
33rd European Biomass Conference and Exhibition
Session:
IDV.3.18
Pages:
1240 - 1242
ISBN:
978-88-89407-25-7
Paper DOI:
10.5071/33rdEUBCE2025-IDV.3.18
Price:
FREE
