Biomass gasification in microwave plasma: An experimental feasibility study with a side stream from a fermentation reactor

In this work, we report on air/N₂ gasification of a byproduct stream from an industrial fermenter in a tubular microwave plasma reactor to investigate the feasibility of the technology for organic compounds valorization, given the limited number of relevant works in the literature. In this context, an operating window regarding air...

Application of microwave plasma technology to convert CO₂ into high value products

The global energy challenges along with global warming are regarded as the most important issues faced by humankind in the 21st century. A fossil fuels-based energy economy cannot support the rapidly increasing world energy demand in a sustainable manner. Hence, the development and implementation of alternative solutions to the use of fossil...

On the improvement of chemical conversion in a surface-wave microwave plasma reactor for CO₂ reduction with hydrogen (The Reverse Water-Gas Shift reaction)

A novel surface-wave microwave discharge reactor configuration to generate syngas via gaseous CO2 reduction with H2 (non-catalytic Reverse Water-Gas Shift reaction) is studied in the context of power-to-chemicals concept. Improvement of CO2 conversion to maximize CO production is explored by adding an external cylindrical waveguide downstream of...

Microwave-driven plasma gasification for biomass waste treatment at miniature scale

Gasification technology may combine waste treatment with energy generation. Conventional gasification processes are bulky and inflexible. By using an external energy source, in the form of microwave-generated plasma, equipment size may be reduced and flexibility as regards to the feed composition may be increased. This type of gasification...

Reduced reaction kinetics model for CO2 dissociation in non-thermal microwave discharges

In the context of CO2 utilization, the electricity surplus from renewable energies can be used in a non-thermal microwave plasma reactor to reduce CO2 and produce chemical fuels. The chemical processes in non-thermal plasma are extremely complex due to the large number of excited species, radicals and ions that are present. Energy stored inside...