In this study, the fluidized bed reactor was used to carbonize corncob in the carbonization step of producing carbon adsorbent with large specific surface area. The experiment showed that not only the efficiency of carbonization, but also the value of specific surface area and specific pore volume of the produced carbon were obviously increased. The experimental operating conditions were as follows: carbonizing the corncob in the preheated fluidized-bed at T= 350 °C for 5 min using N2 as carrier gas; impregnating the char with KOH solution; activating the mixture at T= 800 °C for 60 min in the tubular furnace. Under the optimal conditions, the specific surface area and specific pore volume reached s = 2880 m2 g-1 and v = 1.664 cm 3 g-1, respectively. Comparison was made between this work and other literature on the preparation of activated carbon with large specific surface area.
|Number of pages||6|
|Journal||Chemical and Biochemical Engineering Quarterly|
|Publication status||Published - 2007|
- Carbon adsorbent
ASJC Scopus subject areas
- Chemistry (all)
- Process Chemistry and Technology