| 摘要 |
<p>PURPOSE:To recover only deuterium as high concn. product gas from a gaseous mixture based on hydrogen and deuterium by performing a pressure swing method using X-type or A-type zeolite. CONSTITUTION:At least two adsorbing towers 8, 8' are packed with X-type or A-type zeolite and a gaseous mixture based on hydrogen and deuterium is allowed to flow in the adsorbing towers at temp. equal to or lower than room temp. under a pressure condition from atmospheric pressure to 3atm. to selectively adsorb deuterium contained in the gaseous mixture and high purity hydrogen, or hydrogen enriched gas is allowed to flow out of the outlets of the adsorbing towers. The adsorbing tower having adsorbed deuterium is evacuated to atmospheric pressure or less to be regenerated to recover high purity deuterium or deuterium enriched gas. As a result, only deuterium can be recovered as high concn. product gas in low cost.</p> |
