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Carbon adsorbents from peanut shell have been produced batchwise by reacting with 10–60wt% phosphoric acid solutions at 473K for 120min. Both BET surface area of each adsorbent obtained, as well as iodine amount adsorbed, has been measured at conventional conditions. In addition, adsorption of benzene vapour on each adsorbent produced has been carried out under chromatographic conditions at 473 and...