Das Projekt "Energieforschung (e!MISSION), HydroMetha: Development of a stationary electricity storage system via high temperature co-electrolysis and catalytic methanation" wird/wurde gefördert durch: Österreichische Forschungsförderungsgesellschaft mbH (FFG). Es wird/wurde ausgeführt durch: AVL List Gesellschaft für Verbrennungskraftmaschinen und Messtechnik.Conventional Power-to-Gas systems (storage of surplus electricity in CO2 neutral gases) operate with electrolysis of water and optionally with subsequent methanation. With the flagship project HYDROMETHA a novel, fully integrated system of CO2+H2O high-temperature co-electrolysis (Co-SOEC) and catalytic methanation will be developed. The interconnection of these processes, as well as component and operational optimization will allow a significant increase in conversion efficiencies above 80%el. Due to system simplifications, increased lifetime and durability, as well as optimizations of the process chain, essential cost reductions and thus enhanced market potentials are expected. Additionally, operational strategies oriented on real energy market requirements, including part-load, stand-by and load-following operation will be developed, and the core system of high-temperature co-electrolysis with coupled methanation will be built up, characterized and tested in the form of a 10kWel function carrier. Due to the participation of five reputable industrial LOI partners, a strongly market oriented development can be achieved from a very early state of research.
Das Projekt "Predicting the complex coupling of chemistry and hydrodynamics in fluidised bed methanation reactors for SNG-production from wood (bioSNG - fundamentals of methanation)" wird/wurde gefördert durch: Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung. Es wird/wurde ausgeführt durch: Paul Scherrer Institut, Forschungsbereich Allgemeine Energie.Synthetic natural gas from wood-How can the synthesis be optimised? The production of bio natural gas as a fuel and combustible made of biomass that is rich in lignin presents an interesting alternative to the use (combustion) of biomass purely as a source of energy. In this project, researchers examine how the chemical reactions, the mass transfer and the fluid dynamics in fluidised bed reactors mutually influence each other. In experiments, they check whether the reactor simulation mirrors the actual processes precisely enough. This is important for optimising processes for the production of bio natural gas with the help of simulations. Background Woody biomass containing lignin, such as wood and straw, can so far only be transformed into a combustible product gas via thermochemical processes such as gasification. From the wood gas thereby gained, a synthetic natural gas is made via fluid bed methanation. This so-called bio-SNG (synthetic natural gas) can be fed directly into the existing natural gas network and is available as a renewable and CO2-neutral substitute for conventional fossil natural gas and as fuel for natural gas vehicles. The fluid bed methanation, during which wood gas is transformed into methane, works well at the pilot scale, but further research is necessary before it can be implemented in larger production plants. Aim The goal of the experiments is to collect on a 160 kW pilot plant data of sufficiently good quality that will enable researchers to validate the computer models. These models are used to upscale the fluid bed methanation to the scale of commercial plants and to optimise processes. During the experiments, the researchers will vary temperature, pressure, gas flows and gas composition. For process optimisation, the researchers will measure the fluid dynamics, the axial temperature and the gas phase concentration profiles and will use a catalyst sampling system. Significance The computer modules validated via the measurements on the pilot plant enable researchers to derive meaningful model experiments in the perspective of the 'observing passenger'. In these experiments, a small amount of a catalyst is exposed to a periodically changing gas mixture, which is what happens to the catalyst when there is movement in the fluidised bed reactor. This innovative approach can be applied to all chemical reactors with moving solids.