Table 12
Scoring of technical readiness of solvents solutions.
| Solvents | TRL | Comment | Source | Score 1 | Score 2 | TRL score |
|---|---|---|---|---|---|---|
| n-hexane | 9 | Current technology | 5 | 5 | 5.0 | |
| Iso-hexane | 6 | Tested on bench-scale | Wan et al, 1995 | 3 | 5 | 4.0 |
| Cyclo-hex. | 6 | Idem | Idem | 3 | 5 | 4.0 |
| Methanol | 4 | Tested in direct interestrification at lab scale | Makareviciene et al, 2020 | 2 | 5 | 3.5 |
| Ethanol | 7 | Currently used in other industries | Hron et al, 1982 | 3 | 3 | 3.0 |
| Isopropan ol | 7 | Extensive experiment in TAMU | Lusas et al, 1997 | 4 | 3 | 3.5 |
| Acetone | 8 | The Vaccarino process operated at industrial scale | Vaccarino et Vaccarino, 1961 | 4 | 2 | 3.0 |
| MEK | 2 | Tested with cotton flakes in a 55 kg extractor | Eaves et al. 1952 | 2 | 2 | 2.0 |
| EA | 4 | Lab-scale extraction | Lohani et al., 2015 | 2 | 4 | 3.0 |
| DCM | 6 | Pilot-plant comparison. | Johnson et al, 1986) | 3 | 4 | 3.5 |
| 2-MeOx | 7 | Industrial demo and ongoing qualifications | Claux et al, 2021 | 4 | 4 | 4.0 |
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