Table 1. BDG Composition (Molar Fraction) from Different Biomass Sources and Conversion Processesa.
| syngas
composition (%) |
|||||||||
|---|---|---|---|---|---|---|---|---|---|
| BDGs | CO | CH4 | H2 | CO2 | N2 | biomass | reaction agent | type of gasifier | ref |
| GG-W | 20.67 | 11.11 | 5.37 | 15.52 | 47.33 | rice husk | air | CFBG | (5) |
| GG-M | 16.67 | 9.77 | 8.96 | 21.68 | 42.92 | rice husk | air | CFBG | (6) |
| GG-X | 16.9 | 9.77 | 10.01 | 20.13 | 43.19 | rice husk | air | BFBG | (7) |
| GG-K | 6.32 | 13.74 | 14.65 | 5.15 | 53.09 | mixed plastic wastes | air | TSG | (8) |
| GG-M | 19.25 | 0.3 | 17.1 | 11.05 | 52.3 | rubber wood | steam + air | DDG | (9) |
| GG-M | 32 | 0.13 | 50 | 8 | 8.87 | wood chip | steam | MS | (10) |
| GG-R | 13.99 | 4.82 | 19.53 | 18.36 | 43.3 | oil palm trunk | steam + air | DDG | (11) |
| GG-W | 38 | 2.8 | 36 | 21 | 2.3 | cotton stalk pellets | pure O2 | TSG | (12) |
| GG-B | 32 | 33 | 11 | 27 | 5 | almond shells | steam + O2 | BFBG | (13) |
| GG-L | 37.65 | 4.78 | 27.17 | 28.89 | 1.51 | sewage sludge | steam + O2 | DDG | (14) |
a
CFBG = circulating fluidized bed gasifier, BFBG = bubbling fluidized bed gasifier, TSG = two-stage gasifier, DDG = downdraft fixed-bed gasifier, MS = modeling and simulation.