| 摘要 |
PROBLEM TO BE SOLVED: To provide a process and system for providing a high-pressure hydrogen that is produced by separating a high-pressure gas comprising carbon dioxide and hydrogen from formic acid dehydrogenation reactor, under a mild condition of not higher than 100°C, without going through a significant pressure increase or pressure decrease process, into hydrogen and carbon dioxide as being at the high-pressure state, and purifying the same.SOLUTION: Provided is a process for producing, in a state as remaining at high-pressure, a higher purity hydrogen-containing gas by allowing a high-pressure gas of carbon dioxide and hydrogen at 7.3 MPa or more from formic acid dehydrogenation reactor, not higher than 32°C, to separate into two phases of a liquid phase in which only carbon dioxide is liquified, and a gas phase in which hydrogen is enriched.SELECTED DRAWING: Figure 1 |
