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The Effect of Steam-Oxygen Gasifying Medium on Syngas Upgrading for Nitrogen Reduction

In this work, a promising strategy to achieve nitrogen reduction in syngas produced in small-scale gasification systems is explored. It consists in the substitution of air with steam and oxygen as the gasification medium. The impact of gasifying medium composition on syngas quality was evaluated through both modeling and experimental approaches. A steady-state model of a biomass gasification plant, developed by DTU in Engineering Equation Solver (EES) was adapted to simulate different gasifyi...

Self-Standing Adsorbent Composites of Waste-Derived Biochar and Reduced Graphene Oxide for Water Decontamination

Adsorption is one of the simplest and most cost-effective techniques for water decontamination. In this field, biochar has recently emerged as a promising alternative to traditional adsorbents, exhibiting a high surface area and affinity to metal ions, as well as often being waste-derived. Similarly, reduced graphene oxide (rGO) shows an excellent adsorption capacity. Having self-assembling properties, it has already been employed to obtain self-standing heavy-metal-adsorbing membranes. In th...

Integrated Thermal Management for Hydrogen Fuel Cell Buses Through Maisotsenko-Cycle Cooling and Water Recycling

The electrification of transportation is rapidly transforming public mobility, yet battery-electric vehicles still face significant range limitations. In this context, hydrogen fuel cell systems emerge as a promising alternative, capable of extending vehicle range while reducing environmental impact. However, thermal management remains a critical challenge, as passenger cabin cooling and the regulation of fuel cell and battery temperatures consume a substantial portion of the vehicle's availa...