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Table 2 Separation performance of VSVP process for butanol recovery from binary aqueous solution under extreme temperature conditions

From: A novel close-circulating vapor stripping-vapor permeation technique for boosting biobutanol production and recovery

Temperature (°C) Flux (g/m2 h) Butanol separation factor Butanol titer in permeate (g/L)
Feed solution Membrane surroundings Total Butanol
37 37 90.3 ± 2.1 33.8 ± 2.0 39.1 ± 3.4 344.0 ± 12.7
70 0 117.7 ± 6.1 80.7 ± 6.2 142.7 ± 15.5 591.2 ± 17.9
0 70 6.4 ± 0.5 0.5 ± 0.1 5.7 ± 0.4 78.7 ± 4.3
70 70 315.8 ± 17.5 111.7 ± 8.1 35.8 ± 2.6 326.7 ± 14.6