Sample ACC characteristics Pollutant species Adsorption assays Reference Commercial phenolic novolac resin-based ACC ACC-5092-20 American Kynol Inc.
= 1604 m2 g−1 ;
= 0.726 cm3 g−1 Acetone, benzene Gravimetric method
= 20–60°C;
= 101 kPa Acetone:
= 0–196000 ppmv Benzene:
= 0–94000 ppmv [170 ] Commercial rayon-based ACC WWP3, WWP3-V, VS15 Actitex WWP3:
= 976 m2 g−1 ;
= 0.335 cm3 g−1 ;
= 0.024 cm3 g−1 ; pHPZC = 9.23 WWP3-V:
= 871 m2 g−1 ;
= 0.171 cm3 g−1
= 0.303 cm3 g−1 ; pHPZC = 9.52 VS15:
= 1480 m2 g−1 ;
= 0.665 cm3 g−1 ;
= 0.025 cm3 g−1 ; pHPZC = 8.65 H2 S Batch unit
= 25°C
= n.a. Atmospheres: N2 , dry air, and humid air (RH = 30%) [171 ] Commercial viscose rayon-based ACC WKL 20 Actitex As-received ACC:
= 784 m2 g−1 ;
= 0.317 cm3 g−1 ;
= 0.036 cm3 g−1 ;
= 0.91 nm ACC treated with ammonia/air at 300°C and further pyrolyzed at 600°C:
= 880 m2 g−1 ;
= 0.351 cm3 g−1 ;
= 0.038 cm3 g−1
= 1.07 nm ACC treated with ammonia/steam at 800°C:
= 1185 m2 g−1 ;
= 0.472 cm3 g−1 ;
= 0.046 cm3 g−1 ;
= 1.24 nm H2 S, SO2 Fixed bed, dynamic conditions
= 25°C
(H2 S) = 5000 ppmv
(SO2 ) = 3000 ppmv [172 , 173 ] Commercial ACC ACC-5092-15 American Technical Trading, Inc.
= 1262 m2 g−1 ;
= 0.64 cm3 g−1 ;
= 0.62 cm3 g−1 ;
= 0.77 nmn-butane, HCN, SO2 Gravimetric method
= 25°C [174 ] Commercial ACC ACC-5092-20 American Kynol
= 1604 m2 g−1 ;
= 0.803 cm3 g−1 ;
= 0.746 cm3 g−1 ;Methyl-ethyl ketone Electrothermal swing adsorption Adsorber vessel (125 mm O.D.) with ACC rolled into 4 hollow cylinders (19 mm I.D., 200 mm length)
= 250–1000 ppmv Flow rate = 25–60 L min−1 [175 ] Commercial PAN-based ACC AW1108 Taicarbon Inc. As-received:
= 1100 m2 g−1 Thermally posttreated at different temperatures: ACC (
= 600°C):
= 1100 m2 g−1 ACC (
= 850°C):
= 1209 m2 g−1 ACC (
= 1100°C):
= 1227 m2 g−1 Benzene, Cl4 C Gravimetric method Single component
= 25°C
(C6 H6 ) = 5000 ppmv
(Cl4 C) = 8500 ppmv [176 ] Lab-prepared lyocell (Tencel)-based ACC by H3 PO4 activation at different temperatures ACC (
= 864°C, 10 wt% acid conc.):
= 1229 m2 g−1 ;
= 0.52 cm3 g−1 ;
= 0.48 cm3 g−1 ;
= 0.84 nm ACC (
= 963°C, 10 wt% acid conc.):
= 1705 m2 g−1 ;
= 0.67 cm3 g−1 ;
= 0.64 cm3 g−1 ;
= 1.09 nm n-hexane, Benzene, Toluene Gravimetric method Single component
= 25°C
(C6 H14 ) = 0–173000 ppmv
(C6 H6 ) = 0–112000 ppmv
(C7 H8 ) = 0–33000 ppmv [177 ] Commercial rayon-based ACC Zorflex Woven ACC FM 10
= 1084 m2 g−1 ;
= 0.41 cm3 g−1 ;
= 0.48 cm3 g−1 ; minimum pore diameter = 0.53 nm Total basic groups = 0.79 µeq m−2 Total acidic groups = 0.83 µeq m−2 Formaldehyde Gravimetric method
= 26°C
= 0–32.5 ppmv [178 ]