Parametric Study on the Adjustability of the Syngas Composition by Sorption-Enhanced Gasification in a Dual-Fluidized Bed Pilot Plant

Finding a way for mitigating climate change is one of the main challenges our generation. Sorption-enhanced gasification (SEG) process by which syngas as an important intermediate synthesis e.g., dimethyl ether (DME), bio-synthetic natural gas (SNG) and Fischer–Tropsch (FT) products or hydrogen can be produced using biomass feedstock. It can, therefore, contribute to replacement fossil fuels reduce greenhouse (GHG) emissions. SEG indirect that operated in dual-fluidized bed (DFB) reactor. By use CO2-active sorbent material, CO2 during directly captured. The resulting enhancement water–gas shift reaction enables production with high content adjustable H2/CO/CO2-ratio. Tests were conducted 200 kW DFB pilot-scale facility under industrially relevant conditions analyze influence temperature, steam carbon (S/C) ratio weight hourly space velocity (WHSV) on production, wood pellets feedstock limestone material. Results revealed strong dependency composition temperature terms permanent gases, light hydrocarbons tars. Also, S/C WHSV are parameters adjusting properties such it optimized specific downstream process.