| 摘要 |
PROBLEM TO BE SOLVED: To provide a combined system and its operation method containing a solid oxide type fuel cell, which can respond flexibly to operation conditions and having excellent overall efficiency. SOLUTION: It is constituted that exhaust gas of the solid oxide type fuel cell is made an oxidizer for an industrial process using combustion, a recuperator, which heats the above oxidizer for the solid oxide type fuel cell by the exhaust gas using the above combustion of the industrial process, is prepared, and a heating means, which heats a line that bypasses the above recuperator, a line that bypasses the above solid oxide type fuel cell, a line that bypasses the above industrial process, or the above oxidizer for the solid oxide type fuel cell, is provided. |
