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|1. (WO2018186003) METHOD FOR PRODUCING POROUS CARBON PARTICLES, AND POROUS CARBON PARTICLES|
|Applicants:||KABUSHIKI KAISHA KOBE SEIKO SHO (KOBE STEEL, LTD.)
NATIONAL UNIVERSITY CORPORATION OITA UNIVERSITY
|Title:||METHOD FOR PRODUCING POROUS CARBON PARTICLES, AND POROUS CARBON PARTICLES|
The purpose of the present invention is to provide a method for producing porous carbon particles of large specific surface area having excellent comparative production efficiency and production cost, and porous carbon particles. This method for producing porous carbon particles is provided with a step for spray-drying a solution of ashless coal and a polymer compound dissolved in a solvent and a step for heating the solids fraction obtained in the spray-drying step. The solvent has as a main component an organic compound that includes an oxygen atom or nitrogen atom and has a boiling point of 50°C to less than 250°C at atmospheric pressure. The spraying pressure and feed rate may be adjusted so that the average diameter of the solids fraction is 1-20 μm. The content of polymer compound relative to the total amount of ashless coal and polymer compound is preferably 1-15 mass%. These porous carbon particles have carbon as a main component and are provided with a carbon layer enclosing a hollow portion. The carbon layer has a plurality of pores, and the specific surface area is 200 cm2/g or higher.