Flue Gas Emission Characterization and Environmental Compliance Assessment of a Pilot-Scale Office Waste Gasification Plant

Abstract ―​

Based on data collected from a pilot-scale downdraft gasifier operating at 950 °C and an equivalency ratio of 0.30, this study evaluates the flue gas emissions produced by this device. Every one of the pollutants that were measured fell within the limits set by the Nigerian DPR/EGASPIN. This includes carbon monoxide (285 ppm), nitrogen dioxide (142 ppm), sulphur dioxide (9.5 ppm), volatile organic compounds (15.2 mg/Nm3), particulate matter (18.5 mg/Nm3), and heavy metals. The findings point to downdraft gasification as a viable, dispersed, and environmentally friendly waste-to-energy option.