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1. (WO2018186003) METHOD FOR PRODUCING POROUS CARBON PARTICLES, AND POROUS CARBON PARTICLES

Pub. No.:    WO/2018/186003    International Application No.:    PCT/JP2018/002240
Publication Date: Fri Oct 12 01:59:59 CEST 2018 International Filing Date: Fri Jan 26 00:59:59 CET 2018
IPC: C01B 32/05
B01J 2/04
B01J 20/20
B01J 20/28
B01J 20/30
C08J 3/12
Applicants: KABUSHIKI KAISHA KOBE SEIKO SHO (KOBE STEEL, LTD.)
株式会社神戸製鋼所
NATIONAL UNIVERSITY CORPORATION OITA UNIVERSITY
国立大学法人大分大学
Inventors: HAMAGUCHI Maki
濱口 眞基
WADA Shohei
和田 祥平
INOUE Toshinori
井上 聡則
TOYODA Masahiro
豊田 昌宏
Title: METHOD FOR PRODUCING POROUS CARBON PARTICLES, AND POROUS CARBON PARTICLES
Abstract:
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.