Ethy lbenzene+n -pentanol 계의 인화점 측정과 예측

홍순강(Soon-Kang Hong) 한국엔터테인먼트산업학회 2012 한국엔터테인먼트산업학회논문지 Vol.6 No.3

In this study, the flash points for the Ethylbenzene+n-pentanol system which exhibit MFPB, were measured by Tag open-cup apparatus. The experimental data were compared with values calculated by Raoult’s Law, the van Laar equation and Wilson equation. The calculated values based on the van Laar and Wilson equations were found to be better than those based on the Raoult’s Law. It was conconcluded that the van Laar and Wilson equations were more effective than the Raoult’s than the Raoult’s Law at describing the activity coefficients for non-ideal solution such as the Ethylbenzene+n-pentanol system.

Polyphenol Oxidase를 이용한 수중의 페놀 제거

홍순강 ( Hong Soon-kang ) 한국환경기술학회 2001 한국환경기술학회지 Vol.2 No.3

The purpose of this study were to research for the stabilization of enzyme and removal efficiencies of phenols. Phenols in an aqueous solution were removed after treatment with Tyrosinsss. Gradual activation of the enzyme during the reaction is decreased Phenol concentration and pH of reaction solution were 0.5mM and 7.0, respectively. After about 100 min. operations, the steady state conditions were reached. When stabilizing matters were mixtured, the stabilization of enzyme was increased to 45%(etylene glycol) and 33%(tryptophan). When tyrosinase concentrations were increased to 0.5, 1 and 10 mM, the removal efficiencies were 80, 85, and 90%, respectively. When phenol concentration were increased to 0.5, 1.0, and 10 mM, the removal efficiencies were decreased to 80, 60, and 20%. The effects of aeration on the removal of phenol was increased to 5%. When pHs were to 4.0 , 7.0, and 9.0, the removal efficiencies were 15, 20, and 80%. When temperatures were changed to 25, 50,and 100°C, the removal efficiencies were to 80, 60, and 0%.

이성분계 혼합물의 최소자연발화점 측정

홍순강(Soon-Kang Hong) 한국엔터테인먼트산업학회 2013 한국엔터테인먼트산업학회논문지 Vol.7 No.3

This study the AITs of ethylbenzene + n-pentanol system from ignition delay time(time lag) by using ASTM E 659 apparatus. The AITs of ethylbenzene and n-pentanol which constituted binary system were 285℃ and 473℃, respectively. The experimental AITs of ethylbenzene and n-pentanol were a good agreement with the calculated AITs by the proposed equations with a few A.A.D.(average absolute deviation). The AITs of ethylbenzene + n-pentanol system were analyzed by mole fraction of binary system.

공연장 시설용 난연처리 목재의 난연효과 연구

홍순강(Soon-Kang Hong) 한국엔터테인먼트산업학회 2015 한국엔터테인먼트산업학회논문지 Vol.9 No.4

This study was measured the combustive effects about wood treated monoammonium phosphate with each wood species used facilities in performing place. These three test specics are pine(Japanese Red Pine), Cedar(Japanese Cedar), hinoki(Hinoki Cypress). The solution of monoammonium phosphate is used about 20%, starring at 60℃and used after stability for 168 hours. the vacuum press system is treated by pressure (15kg/ ㎠) and for 30 mins. The result of the first experiment, Cedar(Japanese Cedar) was only appreed THR(Total Heat Rate) 3.7~1.34MJ/㎡ at wood absorbed amount (420.00g) by fire retardant. The second experiments, THR(Total Heat Realase) was certified at frame retartdant standard(8MJ/㎡) at Cedar(Japanese Cedar) 447.00g, hinoki(Hinoki Cypress) 359.00g and pine(Japanese Red Pine) 335.00g. HRR(Heat Release Rate) differently appeared from three specics. The experimental THR and HRR were a good agreement with wood charectistics by the proposed graphy curbe. The wood absorbed amount treated fire retardant by vacuum pressure system were analyzed by total released heat(THR). The purpose of this study is to develop fire retardant and to prevent wood fire. Information of THR and HRR is important in combustion characteristics of wood treated by fire retardant, developing fire retardant and control in wood fire. The experimental results Will be used to improve the wood fire safety by fire retardant.

M1 RNA 내부 염기서열의 결실이 상위 rnpB 전사체의 안정성에 미치는 영향

홍순강,Hong, Soon-Kang 대한화학회 2008 대한화학회지 Vol.52 No.5

n-Propanol + n-Octane 계의 최소자연발화온도 측정

홍순강(Soon-Kang Hong) 한국엔터테인먼트산업학회 2014 한국엔터테인먼트산업학회논문지 Vol.8 No.4

This study were measured the MAITs of n-Propanol + n-Octane system from ignition delay time(time lag) by using ASTM E 659 apparatus.. The MAITs of n-Propanol and n-Octane which constituted binary mixtures were 435℃ and 218℃ , respectively. The experimental MAITs of n-Propanol and n-Octane were a good agreement with the calculated AITs by the proposed equations with a few A.A.D.(average absolute deviation). The MAITs of n-Propanol + n-Octane system were analyzed by mole fraction of binary system. As a result of the experiment with steady mixture rate, the first natural ignition temperature of n-Propanol + n-Octane was 245℃ at rate of 3 : 7 and 263℃ at 5 : 5, 330℃ at 7 : 3 and 365℃ at 9:1. The purpose of this study is to ensure safety of process from chemicals and to ptevent industrial disasters. Flammable substances are frequently used chemical industry process. The fire and explosion properties necessary for safe storage ,transport and process design of flammable substamce are Lower flammability Limits(LFL), upper Lower flammability Limits(UFL), flash point, AIT(mininum autoignition temprtature or spontaneous ignition temperature). Information of MAIT is important in developing appropriate prevention and control measures in industrial fire protection. The experimental results of n-Propanol + n-Octane system Will be used to design and operate the safety processes in the industrial sites dealing with chemicals.

폐기물고형연료(RDF)의 국내 · 외 기술동향

홍순강 ( Soon-kang Hong ) 한국환경기술학회 2007 한국환경기술학회지 Vol.8 No.4

The status of RDF technology in korea, for the manufacturing sector, we don`t have standardization of RDF manufactures and the concrete performance evaluation. So these regulation proposition for the study of the situation is needed. In advanced foreign countries RDF research and development have proceed that we could use as power generation and heating fuel in some regions. Ingredients of domestic waste have much changed. For the last 10 years the RDF manufacturing technology had been developed steadily as commercialization stage. Therefore, policies and administrative measures for the use of RDF promptly should be prepared. And we should consider RDF utilization as secondary fuel from several small and medium-sized municipalities to the national large-scale utilization.

난연처리된 목재의 난연 성능 평가

홍순강(Soon-Kang Hong) 한국엔터테인먼트산업학회 2014 한국엔터테인먼트산업학회 학술대회 논문집 Vol.2014 No.11

열 및 초음파처리 조류의 혐기적 분해

강창민 ( Kang Chang-min ),홍순강 ( Hong Soon-gang ) 한국환경기술학회 2000 한국환경기술학회지 Vol.1 No.1

The thermal and ultrasonic pre-treatments and anaerobic degradation test were conducted to investigate the effect on solubilization and biodegradability of microalgae. First, we analyzed the chemical characteristics of microalgae. The VS(Volatile Solid) was 87% of TS(Total Solid). Microalgae consisted of 63.5% of protein, 23.6% of carbohydrate and 16.1% of lipid, respectively. And the chemical components were 51.5% of C, 28.3% of O, 9.5% of N, 7.5% of H, and 2.0% of P, respectively. Second, we conducted solubilization test of raw algae. In thermal(95℃) and ultrasonic(20kw) pre-treatment time, respectively. The ultrasonic treatment was more effective than thermal treatment only except for carbohydrate. Third, we conducted batch test of anaerobic degradation to compare between biodegradability of treated and untreated ones. In VFA(Volatile Fatty Acid), acetic acid was only detected after thermal treatment, while ultrasonic treatment was detected acetic, propionic, butylic and valeric acid. The concentrations of total VFAs after ultrasonic treatment were higher than that after thermal treatment. Especially, the concentration of propionic acid was the highest after ultrasonic treatment. In spite of the increase of soluble material by pre-treatment, the gas and methane productivities of pretreated cases were lower than than of case. We suspect that the low methane productivity may be due to the undesirable material generated by thermal and ultrasonic treatment.

산업용 탈지세정제용 폐유기용제 및 등유의 정제기술의 연구 개발

김병만 ( Kim Byoung-man ),홍순강 ( Hong Soon-kang ) 한국환경기술학회 2003 한국환경기술학회지 Vol.4 No.3