Assessment of tar production in syngas produced from biomass in a pilot cocorrent gasifier aiming its use in an internal combustion engine

Abstract

This paper analyzes the production of tar produced in the syngas from a gasifier aiming its use in a combustion engine. The gasifier used at work is of co-current type with dual-stage and the engine used is part of a generator group and is an MWM internal combustion engine adapted to Otto cycle coupled to a triphasic synchronous generator of electricity with capacity of 50 kVA. The gas produced has a composition of 16.9% H2, less than 0.1% O2, 50.6% N2, 19.8% CO, 10.6% CO2 and 2.1% of CH4. The biomass used was eucalyptus wood. After 46 hours of operation the engine was open for assessing its state. The engine remained in ideal operating conditions after 46 hours of operation with the synthesis gas, showing no contamination by tar or particulate matter. The amount of PAHs in the gas produced was 1.30 g/Nm³ and particulate matter was 0.16 mg/Nm³

Keywords

• gaseificação
• alcatrão
• biomassa