Table 4.
Elemental composition (wt%), TAN, and other properties of upgraded bio-oils arising from the upgrading of crude bio-oils produced from the HTL of different algal biomass feedstocks and elemental composition (wt%) of solid residue produced after upgrading of the crude bio-oils produced from the HTL of different algal biomass feedstocks
| TAN | C | H | N (mg/L) | S (mg/L) | Oa | H/C | HHV (MJ/kg) | ER | |
|---|---|---|---|---|---|---|---|---|---|
| A | |||||||||
| NO | 1.02 | 88.22 | 8.76 | 3536 | 91 | 0.24 | 1.19 | 42.29 | 0.86 |
| AuP | 1.33 | 85.46 | 8.53 | 4260 | 119 | 0.18 | 1.20 | 41.05 | 0.81 |
| ArP | 0.68 | 86.77 | 8.30 | 4906 | 200 | 0.43 | 1.15 | 41.12 | 0.82 |
| SL | 0.96 | 87.39 | 7.74 | 4097 | 76 | 0.32 | 1.06 | 40.54 | 0.83 |
| UP | 3.52 | 87.21 | 8.55 | 4526 | 188 | 0.47 | 1.18 | 41.62 | 0.84 |
| SJ | 1.57 | 87.26 | 8.25 | 3893 | 97 | 0.40 | 1.13 | 41.21 | 0.82 |
| LM | 3.62 | 85.91 | 8.24 | 4457 | 115 | 0.32 | 1.15 | 40.76 | 0.83 |
| PY | 1.83 | 87.18 | 8.48 | 4281 | 216 | 0.48 | 1.17 | 41.51 | 0.85 |
| NO | AuP | ArP | SL | UP | SJ | LM | PY | |
|---|---|---|---|---|---|---|---|---|
| B | ||||||||
| C | 66.32 | 71.56 | 63.99 | 77.92 | 66.43 | 74.38 | 54.26 | 61.85 |
| N | 3.58 | 4.50 | 5.11 | 2.50 | 4.21 | 3.22 | 5.55 | 3.93 |
| H | 2.40 | 3.04 | 3.20 | 2.89 | 3.07 | 2.93 | 3.24 | 2.70 |
| S | 0.35 | 0.40 | 0.55 | 0.36 | 0.47 | 0.38 | 0.43 | 1.52 |
aCalculated by difference