Modelling and experimental validation of HTW bubbling fluidized bed gasification

TU Delft / GIDARA Energy
Aim of the gasification process is to generate a syngas which, after cleanup and upgrading, will be suitable for fossil-free methanol production. The goal of this project is to arrive at a simple transient one-dimensional model for the gasifier at GIDARA Energy, with the ability to predict the residence time distribution of gas/solids, the (axial) temperature distribution, and the chemical conversion and selectivity to various products.

Focus lies on a research-scale bubbling fluidized bed gasifier operating with solid waste feedstock, e.g. sewage, wood, household and industrial types of solid waste. To arrive at such a model, the output of more detailed Computational Fluid Dynamics models (without reactions) will be analysed and reduced to simpler equations, after which chemical reactions will be added. Cold flow experiments using a downscaled version of the gasifier will be performed at TU Delft for model validation.

Validation gasification measurements at the gasifier will be performed, targeting closure of mass- and energy balances and to obtain more insight in the conversion process of the challenging circular carbon feedstock for further scale-up. These include measurement of main gaseous and solid carbon species, but also online alkali species measurement and carbon-in-ash measurements.

Chair:
Large Scale Energy Storage
Complex Fluid Proccesing

Involved People:
Prof. Johan Padding
Prof.dr.ir. Wiebren de Jong
Ir. Ravi Ramesh