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Table 1 Physical properties of absorbents

From: Improved efficiency of butanol production by absorbent fermentation with a renewable carrier

Materials Specific gravity (g/mL) Bulk density (g/mL) Porosity (%) Specific surface area (m2/g)
SECSAT 0.983±0.053 0.188±0.017 75.7±2.3 0.231±0.013
SECSAP 1.021±0.067 0.126±0.009 82.7±2.2 0.171±0.009
SEWSAT 1.169±0.043 0.149±0.013 82.9±2.2 0.138±0.003
SEWAT 0.619±0.040 0.352±0.007 35.1±1.0 0.116±0.003
Non-woven fabric 0.402±0.035 0.15±0.010 50.2±0.7 0.127±0.002
Polyurethane foam 1.509±0.058 0.105±0.008 89.7±2.4 0.217±0.005