ACTIVATED CARBON WITH HIGH-SPECIFIC SURFACE AREA USING LIGNIN AS RAW MATERIAL, AND ADSORBENT FOR LOWER ALCOHOL CONTAINING THE SAME

摘要

PROBLEM TO BE SOLVED: To provide activated carbon with a high-specific surface area useful as an adsorbent suitable for an application to adsorb and recover lower alcohols in a low-concentration solution.;SOLUTION: The activated carbon obtained by impregnating lignins with an alkaline metal carbonate salt and then heating the lignins in an inert gas at a temperature of ≥700°C has a high specific surface area, and a high adsorption power to lower alcohols. This method has an advantage also in the point that the activated carbon with a high-specific surface area can be obtained at a high yield.;COPYRIGHT: (C)2011,JPO&INPIT