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- 저자 : 성기웅 ( Kwang Rag Kim (검색결과 5 건)
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김유환,김광락,배윤영,성기웅,배성렬 ( Yu Hwan Kim,Kwang Rag Kim,Yoon Yeong Bae,Ki Woung Sung,Seoug Youl Bae ) 한국공업화학회 1995 공업화학 Vol.6 No.4
원자로계통수 조건(300℃, 160㎏/㎠)에서 방사성 부식생성물 중 ^(60)Co를 제거하기 위한 원전계통수정화용 고온흡착제의 흡착메카니즘 및 제조방법을 알아 보았고, Fe-Ti-O, TiO₂, ZrO₂ 등의 흡착제를 공침법, 금속알콕사이드가수분해법, 졸겔법에 의해 제조하였다. 고온수에서 이들 흡착제의 Co^(2+) 흡착특성을 Autoclave를 이용한 회분식 흡착실험으로 살펴 보았으며, Fe-Ti-O 흡착제 제조시 소결온도 변화에 따른 Co^(2+) 흡착용량과 TiO₂ 흡착제 제조시 pH 변화에 따른 흡착용량 및 비표면적 등을 알아 보았다. To remove the solube corrosion products, mainly ^(60)Co under PWR reactor coolant conditions(300℃, 160㎏/㎠), the adsorption mechanism and preparation method of high-temperature adsorbents for reactor water purification were studied. Fe-Ti-O, TiO₂ and ZrO₂ adsorbents were prepared by coprecipitation, hydrolysis of metal alkoxide and sol-gel method. The Co^(2+) adsorption characteristic of these adsorbents in high temperature water were investigated in batch adsorption experiment by a stirred autoclave. The effect of sintering temperature on Co^(2+) adsorption capacity of Fe-Ti-O adsorbent and the effect of preparation pH on Co^(2+) adsorption capacity and specific surface area of TiO₂ adsorbent are reported.
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비활성 알루미나 고정상을 이용한 수소동위원소의 크로마토그래피 분리
김광락,이성호,강희석,정흥석,성기웅 ( Kwang Rag Kim,Sung Ho Lee,Hee Suk Kang,Hongsuk Chung,Ki Woung Sung ) 한국공업화학회 1998 공업화학 Vol.9 No.1
삼중수소를 함유하는 수소동위원소 시설의 운용이나 취급 또는 핵융합소재의 관리기술분야에서는 기체크로마토그래피 분리법이 중요한 분석 및 농축기술중의 하나로 활용되고 있다. 수소, 중수소 및 삼중수소의 수소동위원소 혼합기체시료를 상용 기체크로마토그래피를 사용하여 분리하였다. 기체시료는 특별히 제작된 진공-시료주입장치를 통해 액체질소온도의 분위기로 유지된 분리컬럼을 통과하는 비활성 캐리어 기체의 흐름에 주입하였다. 10% 함량의 염화망간으로 부분-비활성화한 산화알루미늄 고정상에서 수소동위원소들이 완전히 분리됨을 확인할 수 있었다. 그리고 이성질체피크의 억제와 분리 ·용리시간이 단축되어 실제 수소동위원소의 분리 및 농축기술에 유용하게 적용할 수 있는 비교적 우수한 분리조건을 얻었다. In fields of operating or handling a hydrogen isotope facility, and of the technology for nuclear fusion source management, gas chromatography has been used as one of the practical techniques for separation and enrichment of hydrogen isotopic gases including tritium. Chromatographic separation experiments of the hydrogen isotope mixture (hydrogen, deuterium and tritium) were carried out by use of a commercially available gas chromatograph. An aliquot of gas sample was injected by a specially designed vacuum sampler into the stream of inert carrier gas which went through the separation column under liquid nitrogen temperature. The complete separation of hydrogen isotopic molecules was observed with an alumina adsorbent partially deactivated by coating with 10% manganese chloride. In addition, fairly good separation conditions were obtained without any appearance of nuclear spin isomers with shorter retention time, which would be available for the practical applications of the hydrogen isotope separation and enrichment.
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아연의 수용액 평형과 원자로급 이온교환 수지에 의한 흡착
성기웅,김광락,백승우,김우철 한국공업화학회 2000 응용화학 Vol.4 No.2
Injection of zinc to the reactor water of a nuclear power plant is one of the preventive technologies in order to control the deposition of radionuclides such as ^(60)Co on the system surfaces. Zinc compounds such as zinc oxide, zinc formate and zinc acetate have been proposed and used to evaluate ionic zinc as a means to reduce reactor radiation buildup at several plants. Most of zinc once injected to the reactor water is removed by CVCS demineralizers and only a small portion is incorporated onto the primary system surfaces. From the thermodynamic analysis of the aqueous zinc systems using reliable data, hydrolytic zinc ions are higher than zinc divalent ion at high temperatures. In addition, adsorption behavior of dissolved zinc compounds from aqueous solution on Amberlite ion exchange resin (nuclear grade) has been investigated experimentally using a batch adsorption technique.
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나정원,성기웅,김광락,김우철,정흥호 한국공업화학회 1999 응용화학 Vol.3 No.1
A preliminary study on erosion-corrosion of carbon steel with ASTM specification of A106 Grade B and low-alloys with A335 P11(1Cr-1/2Mo) and P22(21/4Cr-1Mo) was carried under aqueous accelerating conditions of pH 8.0±0.3 without dissolved oxygen at 130 ℃ in an erosion-corrosion test loop. The weight losses on the surfaces of A106 carbon steels appeared to be dependent upon flow rate and turbulence intensity. The weight losses on the surfaces of P11 and P22 low-alloy steels, measured after 500 hours, showed approximately half of that of A106 carbon steel.
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