| 摘要 |
<P>PROBLEM TO BE SOLVED: To surely prevent the excess temperature rise in a combustion unit by a simple constitution and control without using an off-gas tank. <P>SOLUTION: When a PSA (pressure swing adsorption) unit 42 is stopped, the off-gas discharged from the PSA unit 42 is charged into a combustor 20 and burnt. Then, after the discharge operation of the off-gas has satisfied a prescribed conditions, the residual gas remaining at the upstream side of the PSA unit 42, that is to say, in a reformed gas feeding passage 40 is purged to the combustor 20 from an air feeding passage 36 for discharging the off-gas through a first a branch flow passage 46a and a second branch flow passage 46b, and burnt. Accordingly, the off-gas discharged from the PSA unit 42 and the purge gas purged from the reformed gas feeding passage 40 are controlled by shifting timing being charged to the combustor 20. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
