Biomass and Bioenergy· 2026Q1
Aqueous phase reforming of model hydrothermal liquefaction wastewater with Pt/C and Ru/C catalysts
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- Q1SCImago
- 2026year
Short summary
Ruthenium catalysts achieved 77-100% hydrogen yields from model wastewater, significantly outperforming platinum catalysts (44-54%) under aqueous phase reforming conditions.
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Key points
- Ruthenium catalysts yielded 77-100% hydrogen from multi-component model wastewater, versus 44-54% for platinum catalysts.
- Aqueous phase reforming was conducted at 225 °C and 450 psi using 5 wt% Pt/C and 5 wt% Ru/C.
- Ruthenium catalysts showed potential for hydrogen production from municipal sewage sludge-HTL wastewater.
- Severe catalyst deactivation occurred with Ru/C catalysts on real wastewater due to carbonaceous solid deposition.
AI-generated from the title and abstract; the full text is not read.
Abstract
Aqueous Phase Reforming (APR) was conducted at a temperature of 225 °C, a pressure of 450 psi, and with two catalysts: 5 wt% platinum and 5 wt% ruthenium supported on active carbon. Single- and multi-component surrogate feedstocks consisting of acetic acid, acetone, ethanol, glycerol, succinic acid, and N-methylacetamide were tested to compare the two catalysts. Among the catalysts, the ruthenium catalyst consistently outperformed the platinum catalyst, achieving hydrogen yields of 77-100% compared to 44-54% with platinum for multi-component feedstocks. The wastewater resulting from the Hydrothermal Liquefaction (HTL) of Municipal Sewage Sludge (MSS) was tested at 225 and 250 °C, and at 450 and 650 psi. Results demonstrated that while hydrogen can be produced from MSS-HTL wastewater using a ruthenium catalyst supported on carbon, catalyst deactivation was severe. Future work is suggested to investigate methods to prevent catalyst deactivation due to carbonaceous solid deposition.
The authors' abstract, as published at the source. Biomass and Bioenergy, 2026 · DOI ↗
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Field: Catalysis
CatalysisChemical Engineering