Adsorption/Desorption Properties of VOCs on Activated Carbon Fiber

Abstract

We investigated the adsorption/desorption property of volatile organic compounds(VOC) by using activated carbon fibers(ACF) instead of activated carbon(AC) which is conventionally used. The adsorption behavior of the fixed bed and the breakthrough characteristics were also studied. As a result, ACFj showed 1.15 times higher adsorption amount as compared to AC. The breakthrough Point and adsorption amount of VOCs were decreased with the increase of temperature. In the case of AC, desorption time having 99% removal efficiency was about as minutes, but that of ACF was about 5 minutes at same condition.

Adsorption of volatile organic compounds using activated carbon fiber filter in the automobiles

“…Baek et al [6] and Kim and Chang [7] also reported that the cm 3 /g, respectively. Therefore, the specific surface areas of the two ACFs were 1690 m 2 /g and 1090 m 2 /g, respectively.…”

“…Such an explanation is equivalent to the study of Dubinin [14], Huang et al [15] and others. Baek et al [6] reported that it was possible to obtain a maximum adsorption capacity of 370 mg/g-acf when passing toluene vapor of 100 ppm at 0.5 L/min through an 0.03 g ACF packed bed. This was approximately twice that in this experiment, thereby displaying a substantially better adsorption capacity of toluene.…”

“…Furthermore, the shape is either woven or non-woven; thus, it would be appropriate to apply it as a face filter. Son et al [4], Baek et al [6], and Kim and Chang [7] have studied the toluene adsorption characteristics with ACF packed beds. Byun et al [8] reported the adsorption and desorption behaviors of toluene and isopropyl alcohol by utilizing an ACF, and Park et al [9] also studied the characteristics of benzene adsorption and the desorption features of ACF.…”