CARBONIZED MATERIAL CONTAINING HYDROXYL GROUP DERIVED FROM HYDROPHILIC POLYMER AND METHOD FOR PRODUCING THE SAME

摘要

PROBLEM TO BE SOLVED: To provide a carbonized material containing hydroxyl groups derived from a hydrophilic polymer, having a large gas (oxygen) adsorption and a large difference between oxygen and nitrogen adsorptions, easy to regenerate, obtained using inexpensive starting materials in an easy production process and suitable for use as an adsorbent in PSA based on difference of adsorption equilibria. SOLUTION: The carbonized material has (a) 1-50 ml/g oxygen adsorption in the standard state and (b) an oxygen adsorption to nitrogen adsorption ratio (O2/N2) of 2-40 in the standard state.