| abstract |
(57) [Problem] To provide a method and an apparatus for removing carbon dioxide from biomass, which can remove carbon dioxide in the atmosphere efficiently and independently. SOLUTION: Biomass B in which carbon dioxide in the atmosphere is fixed is pulverized into an organic slurry S, and the organic slurry S is subjected to methane fermentation by a group of methanogens maintained at an active temperature, and methane gas from the fermentation is heated to a decomposition temperature. While catalyst Decomposes into hydrogen and solid carbon on contact with 14. The energy required for pulverization, maintaining the activation temperature, and heating to the decomposition temperature is covered by the combustion energy of the hydrogen, thereby removing carbon dioxide in the atmosphere as solid carbon in a self-sufficient manner. Preferably, the methane decomposition reaction is maintained with a part of the hydrogen, the other part of the hydrogen is converted into electric power and high-temperature water by the fuel cell 17, the slurry S is kept warm with the high-temperature water, and the required electric power of the entire system is self-supplied. |