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Adsorption and reduction of NO 2 over pitch-based ACFs, both as received and calcined at 1100 o C, were studied in a range of concentrations (NO 2 , 250-1000 ppm; O 2 , 0-10%) and temperatures (30-70 o C). Repeated adsorption after regeneration at 300 o C, temperature-programmed desorption (TPD) and diffuse reflectance fourier transformation infrared...
The activities of activated carbon fibers (ACFs) from ethylene tar pitch and cellulose with various surface areas were examined for the oxidative conversion of SO 2 into aq.H 2 SO 4 in the presence of H 2 O and O 2 , and compared to those of coal tar pitch and polyacrylonitrile based ACFs. Cellulose ACF with surface area of ∼1000 m 2 /g after calcination...
Modification of the pore size of several types of carbon adsorbents by chemical vapour deposition of carbon from benzene at 1000 K was examined. The carbons included commercial molecular sieve carbon (MSC), pitch based active carbon fiber (ACF), super and commercial active carbon (S-AC, AC). Greatly improved selectivity for the separation of CO 2 and CH 4 was achieved by this method...
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