Manufacturing Process of Activated Carbon from Asphalt (I) Comparison of Pretreatment Methods of Asphalt

概要

論文の詳細を見る
This report describes the comparison of various pretreatment methods of asphalt to obtain an intermediate product prior to activation from asphalt, socalled char.<BR>First, although the activation of carbonized asphalt was put to the test, activated char was not suitable to be used as activated carbon because of lower yield, small specific surface area and small adsorbability. Second, although the activation of air oxidized petroleum coke was put to the test, the result was not more desirable compared with the activation of carbonized asphalt. Therefore, it was considered that the activation of char such as air oxidized petroleum coke obtained by air oxidation or carbonization was not suitable to produce activated carbon from asphalt. Third, sulfuric acid treatment of asphalt was put to the test.<BR>As a result, it was confirmed that non-caking char, which was more suitable for activation, was obtained with the yield based on asphalt of about 140wt. % by this method and that high quality activated carbon was produced by activation of this char.
一般社団法人日本エネルギー学会の論文