Preparation of activated carbons from Chinese coal and hydrolysis lignin

Activated carbons from Chinese coal and Chinese hydrolysis lignin have been prepared by chemical activation with potassium hydroxide. The following as pects of these activated materials have been analyzed: raw material; pre-tr eatment of raw material; activation agent, activation temperature and time, acid the activation agent/raw material ratio. Activated carbons with BET s pecific surface areas of the order of 2400-2600 m(2)/g which exhibited subs tantial microporosity, a total pore volume of over 1.30 cm(3)/g and a Methy lene Blue adsorption capacity of over 440 mg/g were obtained.