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전종기,정경열,박영권,Jeon, Jong-Ki,Jung, Kyeong Youl,Park, Young-Kwon The Korean Society of Industrial and Engineering C 2011 공업화학 Vol.22 No.5
본 연구에서는 분무 열분해 방법으로 제조된 메조기공 $V_2O_5/TiO_2$ 촉매 상에서 1,2-dichlorobenzene (1,2-DCB)의 표면 활성종을 파악하고자 하였다. 이를 위하여 in situ FT-IR cell을 이용하여 1,2-DCB의 흡착/탈착을 수행하였다. 또한 기존의 $TiO_2$와 incipient wetness로 제조된 $V_2O_5/TiO_2$ 상의 흡착종들과의 비교도 함께 수행되었다. In this study, surface-adsorbed species of 1,2-dichlorobenzene (1,2-DCB) on mesoporous $V_2O_5/TiO_2$ catalysts synthesized by spray pyrolysis were investigated through the adsorption/desorption performed using in situ FT-IR cell. Also, the comparison of adsorbed species with $TiO_2$ and $V_2O_5/TiO_2$ synthesized by the incipient wetness was carried out.
전종기,박성기,박영권 한국청정기술학회 2008 청정기술 Vol.14 No.3
The purpose of this study is to upgrade the catalysts for synthesizing mixed octenes using normal butene and the catalysts for synthesizing C9-aldehyde through hydroformylation of mixed octenes with syngas. The in-line activation method with circulating activating solution was effective for activation of the NiO/Al2O3 catalyst. The reason for catalyst deactivation may be ascribed to physi-sorbed materials or oligomers which block pore entrance and then prevent active sites from participating a reaction. Continuous distillation apparatus was used for separating mixed octenes from dimerization products. When reflux ratio was above 3 : 1, mixed octene fraction of which purity was above 99.57% was obtained. In C9-aldehyde synthesis through hydroformylation of mixed octenes, we investigated a performance of ligand which increased catalyst stability as well as activity of Co catalyst. The results indicated that TPPO, NMP, NDMA, and succinonitrile were suitable ligand for increasing initial activity and reducing loss of Co during catalyst recovery. 본 연구의 목적은 노르말부텐을 이용하여 혼합옥텐을 합성하는 촉매와, 혼합옥텐을 합성가스와 함께 수소포르밀 반응을 통해서 C9-알데히드를 제조하기 위한 촉매를 개선하고자 하는 것이다. 노르말부텐의 이량화 반응을 위한 Ni/Al2O3 촉매를 in-line 상태로 활성화 용액을 순환시키는 방법이 효과적이었다. 촉매의 비활성화의 원인을 분석한 결과, 이량화 반응실험에서 oligomer에 의한 촉매의 비활성화는 단순한 물리흡착 상태 또는 촉매의 세공 입구를 올리고머가 막는 현상 등에 의하여 반응활성점들이 반응에 참여하지 못하는 현상에 기인한 것으로 추정된다. 이량화 반응생성물 중에서 혼합옥텐을 분리하기 위하여 연속식 증류 장치를 사용하였는데, 환류비가 3 : 1 이상일 때 혼합옥텐의 순도가 99.57% 이상인 유분을 얻을 수 있었다. 혼합옥텐의 수소포르밀 반응에 의한 C9-알데히드 제조 실험에서 Co 촉매계의 활성을 저하시키지 않으면서 촉매의 안정성을 높일 수 있는 배위자들의 성능을 조사한 결과, TPPO, NMP, NDMA, succinonitrile 등이 초기 활성을 증가시키며, 촉매의 회수과정에서 Co의 손실을 줄일 수 있는 리간드로 적합한 것으로 나타났다.
C₄유분을 이용한 옥텐류의 합성에 있어서 1,3-Butadiene의 함량에 따른 이량화 촉매의 수명에 관한 연구
전종기,한원희,조정호,고승태,노상균 동양대학교 2001 동양대학교 논문집 Vol.7 No.1
Selective hydrogenation of 1,3-butadiene in C4 raffinate was carried out in fixed bed reactor using Pd/a1unina catalysts, Concentration of 1,3-butadiene in C4 raffinate could be reduced under 100 ppm.The life of dimerization catalyst using C4 raffinate after selective hydrogenation was longer than that of dimerization catalyst without selective hydrogenation.It was found that dilution of olefin concentration in feed was effective to increase dimerization catalyst life.
Heterogeneous Catalysts for Synthesis of Tricyclopentadiene Isomer from Dicyclopentadiene
전종기,임진형,유용인,한정식 한국공업화학회 2016 한국공업화학회 연구논문 초록집 Vol.2016 No.1
Tricyclopentadiene has been used as a high-energy-density fuel because it has a high calorific value and high density. Tricyclopentadiene can be produced via diels-alder reaction of dicyclopentadiene. Because freezing point and viscosity of endo-type tricyclopentadieneare is higher than those of exo-type tricyclopentadiene, it is need to convert to exotype by isomerization. In this study, we used zeolites as a catalyst in synthesis of tricyclopentadiene from dicyclopentadiene. In addition, a hybrid material composed of microporous and mesoporous material prepared from commercial zeolites was evaluated as a catalyst for oligomerization of diicyclopentadiene. The hybrid material composed of microporous and mesoporous material shows high reaction activity and selectivity in a dicyclopentadiene oligomerization which can be attributed to the large pore size as well as moderate acidity.