Investigation of Tar Properties for Tar Removal by Scrubbing

D. Fuentes, G. Claro, S. Nilsson, A. Gómez-Barea & P. Ollero
A new concept to remove tar by scrubbing from biomass gasification gas is investigated. The concept is based on a system capable to remove the tars in two sequential stages: heavy tars are removed in a first hot absorber and the light tars (and water) are removed in a second, colder, absorber. The liquid stream contain light tars is recirculated to the first absorber to be used as primary solvent. Key data (viscosity and the...