Table 3 The comparison of ABE recovery by VSVP process, pervaporation and gas stripping
ABE concentrations in condensate (g/L) | Total flux (g/m2/h) | Apparent stripping rate (g/L/h) | SFB/SFA | Separation factor | |||||
|---|---|---|---|---|---|---|---|---|---|
B | A | E | B | A | E | ||||
VSVP | 212.0–232.0 | 86.3–115.5 | 8.3–8.6 | 117.2–124.1 | 1.36–1.44 | 1.23 | 29.8 | 24.3 | 3.9 |
Pervaporation | 71.5–77.4 | 35.0–39.8 | 6.3–6.7 | 48.8–54.3 | 0.57–0.63 | 0.99 | 8.2 | 8.3 | 3.2 |
Gas stripping | 99.8–106.5 | 41.1–46.3 | 7.4–7.7 | – | 1.10–1.20 | 1.09 | 10.9 | 10.0 | 3.8 |