Connecting gasification with syngas fermentation: Comparison of the performance of lignin and beech wood

The integration of gasification with syngas fermentation is still in an early stage development, where many questions exist concerning the quality required. challenge to define conditions that will provide a H2:CO:CO2 ratio suitable for fermentation, as well identify and remove compounds can inhibit performance microorganisms. right balance between line up minimal gas cleaning needs be assessed improve economic feasibility process. In this work first attempt combine two processes presented, aim insight indirect gasification, applied, effect main impurities fermentation. A lignin rich feedstock was gasified steam gasifier, at TNO (Netherlands Organization Applied Scientific Research). gas, after removal some components could hinder (tar compounds, BTX, unsaturated hydrocarbons sulphur compounds), consisted CO, H2, CO2, CH4, C2H6 traces other hydrocarbons. influence obtained composition evaluated process using Clostridium ljungdahlii, KIT (Karlsruhe Institute Technology). For comparison, product from beech wood also under same conditions.