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소석회 ( Ca(OH)2 ) 에 의한 방사성 산성 폐액의 중화처리
이낭호,이동규,박상찬 ( Nang Ho Lee,Dong Kyu Lee,Sang Chan Park ) 충북대학교 산업과학기술연구소 1990 산업과학기술연구 논문집 Vol.4 No.2
Abstract_Roman Laboratory experiments were conducted to evaluate optimum conditions for the treatment of radioactive acidic waste solution with hydrated lime. A pi- lot plant was also operated- The optimum pH value was found to be above 9.2 for achieving
메탄올을 탄화수소로 전환하기 위한 HZSM-5 촉매의 개발
김의식,이동규,박상찬 ( Eui Sik Kim,Dong Kyu Lee,Sang Chan Park ) 충북대학교 산업과학기술연구소 1995 산업과학기술연구 논문집 Vol.9 No.1
Abstract_Roman Methanol is a potential moter fuel that can be made from synthesis gas by existing technology. Converting methanol into hydrocarbons would avoid these problems. The cost of conversion would less than the added cost of using methanol as a m
이동규,박상찬 한국산업안전학회 1999 한국안전학회지 Vol.14 No.3
This study was conducted to invent brake of non-steel material without using asbestos and disc pad added ZrSiO₄ was made. The physical properties and friction characteristics were investigated by varying methods. The physical properties were inspected of shear strength, hardness, heat expansion, specific gravity, % of gashole, thickness variation, weight variation and pH variation. The friction stability was measured by friction coefficient on variations of speed, temperature and deceleration condition. It was found that the physical properties were in general excellent. According to the friction characteristics tests, ZrSiO₄ had an abrasive property. As a results, the friction materials containing ZrSiO₄ 3∼5vol% showed better resistance to fading and improved friction stability than the materials without ZrSiO₄.
유동층에서 ZSM-5 촉매 입자의 최소 유동화속도 결정
박상찬,이동규 충주대 산업과학기술연구소 1995 産業科學論文集 Vol.3 No.-
Minimum fluidization velocities (Umf) have been determined experimentally in a gas-solid fluidized bed of ZSM-5 catalyst. It has been found that measured values of Umf are ranged around 0.2 cm/sec at increasing fluidized gas velocity and 0.28∼0.32 cm/sec at decreasing fluidized gas velocity. These results can be interpreted by the characteristics of ZSM-5 catalyst classified into several groups by Geldart. Ar and Remf have been introduced to predict equations on Umf. The equation, Ar=890 Remf1.28 has met nearly all experimental data of fluidizing characteristics from fluidized bed of ZSM-5 catalyst.