In the equation, AC represents activated carbon, and the total tar
is the sum of tar condensed in the equipment installed after the
gasifier. Because tar generated during gasification can be removed
not only by the gasifier, but also by downstream equipment, TRE
can provide the sole tar removal efficiency of the stage gasifier with
activated carbon. The experimental results showed that the producer
gas yields were ~68e77 wt%. Most producer gases had lower
heating values (LHVs) above 5 MJ/Nm3 except Run 10. CGE and CCE
ranged from 63 to 90% and from 71 to 93%, respectively