Table 3 Comparison of biofuel co-production (bioethanol and methane) yields from different substrates based on high solids fermentation
Material | Bioethanol production | Methane production | References | |||
|---|---|---|---|---|---|---|
Solid loading | Ethanol concentration (g/L) | Ethanol yield (%) | VS ratio (inoculum:substrate) | Methane yield (mL/g vs) | ||
Birch wood | 35% (w/w) | 83.2 | 68.7 | 1:1 | 188.1 | [36] |
Corn stover | 24% (wt%) | 76 | 78.3 | 2:1 | 120 | [57] |
Corn stover | 35.5% (w/w) | 70.7 | 72.5 | No description | 320 | [58] |
SCB | 30% (w/v) | 68.047 | 74.13 | 1:1 | 306.974 | [50] |
SCB + molasses | 36% (w/v) | 94.20 | 72.37 | 1:1 | 312.14 | [26] |
DER + SCB + molasses | 44% (w/w) | 91.82 | 69.33 | 1:1 | 320.72 | This study |