Study of factors affecting syngas quality and their interactions in fluidized bed gasification of lignite coal

- The effect of three operating factors on syngas quality in fluidized bed lignite gasifier is studied.
- The syngas quality was defined based on conversion, H2/CO, CH4/H2, yield, and gasifier efficiency.
- Low coal feedrate, average particle size and high steam/O2 are favorable to high conversion rates.
- The steam/O2 ratio has the greatest effect on the H2/CO and CH4/H2 ratio.