Korea Atomic Energy Research Institute

Yong-Ho Cha

Do-Young Jeong

Taek-Soo Kim

Yonghee Kim

Lim Lee

Hyounmin Park

Dong-Yong Chung

Hyoun-Min Park

A process for isolatingO from water and a process for concentratingO by using the same are provided. The process for isolatingO from water includes: mixingO-containing water with formaldehyde to prepare an aqueous formaldehyde solution; heating the aqueous formaldehyde solution to generate a vapor mixture containing water vapor and formaldehyde vapor; and obtainingO-depleted water, residual formaldehyde, and a gas mixture containing hydrogen andO-enriched carbon monoxide, through photodissociating the vapor mixture. AnO-enriched water production process includes: an operation of adding hydrogen to the gas mixture to induce a catalytic methanation reaction to synthesize methane (CH) andO-enriched water (HO) through methanation, the operation being carried out following the process for isolatingO from water.

Process for isolating 170 isotope from water and process for concentrating 170 isotope using the same

Provided is a method of separating carbon and oxygen isotopes by using a laser. In one preferred embodiment, the method includes performing a photolysis process on formaldehyde including a carbon or oxygen isotope by irradiation with ultraviolet light having a wavelength ranging from 340 nm to 360 nm to generate carbon monoxide having a carbon or oxygen isotope enriched therein and hydrogen, performing a catalytic reaction on the carbon monoxide having a carbon or oxygen isotope enriched therein and the hydrogen to synthesize carbon dioxide (CO) and water (HO) having a carbon or oxygen isotope enriched therein, and cooling the HO to recover COhaving a carbon isotope enriched therein or HO having an oxygen isotope enriched therein.

Method and apparatus for separating carbon and oxygen isotopes by using optical fiber laser

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Daejeon, South Korea

Yong-Ho Cha