NOVELTY - A slurry containing auxiliary adhesive and conductive additive is prepared. Thermoplastic phenolic resin dissolved in ethanol is added to the slurry and rolled. The rolled material is extruded to obtain honeycomb active carbon with pore density of 2-15 pores/cm2. The honeycomb active carbon is cured and carbonized, and modified at 600-1000 degrees C with a modifying material supplied at a flow rate of 0.5-1.0 l/minute to obtain honeycomb type active carbon.    USE - Manufacture of honeycomb type active carbon used for absorbing carbon dioxide by electrolytic absorption process.    ADVANTAGE - The active carbon has high absorption selectivity and does not produce pressure drop and channeling. The active carbon is manufactured with reduced amount of energy and has reduced sorption-absorption recycling period.    DETAILED DESCRIPTION - An auxiliary adhesive is dissolved in boiled water, stirred and cooled to room temperature. A conductive additive is added with continuous stirring to obtain a slurry. Thermoplastic phenolic resin dissolved in ethanol is added to the slurry in the weight ratio of 5-40:100, and rolled. The rolled material is added into the barrel of an extruder and extruded from the bottom of the barrel at a rate of 0.5-30 cm/minute to obtain honeycomb active carbon with pore density of 2-15 pores/cm2 and pore length or diameter of 0.6-3 mm. The pores are circular, square, or equilateral triangle. The honeycomb active carbon is added to a charring furnace and the temperature is raised to 120-250 degrees C at a rate of 2-5 degrees C/minute. The active carbon is cured for 1-2 hours and carbonized at 500-1000 degrees C to obtain carbonized active carbon. The carbonized material is added to a chemical vapor deposition furnace and modified at 600-1000 degrees C with a modifying material supplied at a flow rate of 0.5-1.0 l/minute to obtain honeycomb type active carbon. The auxiliary adhesive, conductive additive and active carbon are contained in the weight ratio of 2-30:2-15:60-93. The auxiliary adhesive is carboxymethylcellulose, sodium carboxymethylcellulose, methylcellulose and/or cellulose. The conductive additive is active carbon fiber, asphaltic carbon fiber, viscose carbon fiber, graphite or carbon black. The modifying material is ammonia, methylamine, ethylamine, methane or ethane.