How to operate the carbon monoxide stable isotope concentrator and the carbon monoxide stable isotope

摘要

PROBLEM TO BE SOLVED: To provide a carbon monoxide stable isotope enricher capable of reducing troubles at the time of starting the device and shortening the start-up time by the minimum necessary impairment processing capacity of the 18O impairment device and the minimum necessary management. .. SOLUTION: A group of distillation columns in which a plurality of distillation columns are cascade-connected, an 18O impaired device 23 connected to a distillation column arranged at the downstream end of the group of distillation columns, and an arrangement at the downstream end of the group of distillation columns. The 18O impairing device gas introduction line 31 that introduces carbon monoxide enriched with carbon monoxide stable isotope molecules including 13C into the 18O impaired equipment from the distilled column, and the 13C16O enriched from the 18O impaired equipment 23 are used as products. The product derivation line 32 to be derived and the 18O attenuation device that returns carbon monoxide in which carbon monoxide stable isotope molecules including 18O are impaired from the 18O attenuation device 23 to the distillation column located at the downstream end of the distillation column group. A carbon monoxide stable isotope concentrator 100 including a gas return line 33. [Selection diagram] Fig. 1