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아닐린과 메탄올의 산화 카르보닐화에 의한 Methyl N-phenyl carbamate 제조 연구
노종선,이관영,김태순,장태선,윤병태,김성보,Roh, Jong-Seon,Lee, Kwan-Young,Kim, Tae-Soon,Chang, Tae-Seon,Yoon, Byung-Tae,Kim, Seong-Bo 한국화학공학회 2018 Korean Chemical Engineering Research(HWAHAK KONGHA Vol.56 No.1
아닐린과메탄올의산화 카르보닐화방법에의한 Methyl N-phenyl carbamate 제조는 기존의포스겐을사용하는폴리머의 단량체 생산공정을 대체할 수 있는 환경 친화적인 공정으로 많은 관심을 가지고 있다. 본 연구에서는 담지체로 Y-zeolite, $SiO_2$, $Al_2O_3$를 사용하여 불균일화 촉매를 제조하였고, 제조 된 불균일화 촉매를 이용하여 아닐린과 메탄올로부터 산화카르보닐화 연속운전을 시도하였다. 회분식반응기를 이용하여 담지체를 결정하였으며, 담지된 palladium 촉매를 이용하여 조촉매의 영향과 반응온도, 반응압력 등 여러 반응최적조건을 확립하였다. 최적의 반응조건 MPC의 수율은 98.6% 였으며, 반응속도론적 연구를 수행하였다. 각 반응온도의 반응속도상수로부터 얻어진 활성화 에너지는 각각 E=82.38 kJ/mol, E=66.20 kJ/mol 이었다. 또한 확립된 반응조건에서 장시간 연속운전을 수행하여 카바메이트 공정 개발을 위한 기초자료를 구하였다. The production of methyl N-phenyl carbamate by an oxidative carbonylation method of aniline and methanol is of great interest as an environmentally friendly process that can replace the monomer production process of a polymer produce using conventional phosgene. In this study, heterogeneous catalysts were prepared by using Y-zeolite, $SiO_2$, $Al_2O_3$ as support, and oxidative carbonylation continuous operation from aniline and methanol was attempted using the prepared heterogeneous catalyst. Batch reactor was used to determine the support, and various reaction conditions such as reaction temperature, reaction pressure, and effect of promoter were established using palladium catalyst. A reaction kinetics study was conducted under optimum reaction conditions. The basic data for carbamate process development were obtained by performing continuous operation for a long time under established reaction condition.
장태선(Tae-Sun Chang),박정현(Jung-Hyun Park),강태진(Tae-Jin Kang),노종선(Jong Seon Roh),허융진(Yung Jin Hur),박상규(Sangkyu Park) 한국에너지기후변화학회 2017 에너지기후변화학회지 Vol.12 No.2
In this study, the adsorbent derived from water treatment sludge was prepared and characterized via various analytical tools such as N2-sorption, XRD, XRF, and NH₃/CO₂-TPD. The adsorbent and activated carbon were applied for the removal of hazardous gases of ammonia, form aldehyde, and benzene, etc. The activated carbon and adsorbent possessed the surface area of around 543.2 ㎡/g and 93.3 ㎡/g, respectively. The adsorbent had a large amount of acid and base properties in NH₃/CO₂-TPD analyses, while the activated carbon was negligible level. For NH₃/HCHO test, despite the low surface area of the adsorbent, the adsorbent displayed a similar removal efficiency compared with the activated carbon due to the chemical adsorption caused by the acid-base properties. However, the activated carbon showed a better efficiency in benzene/toluene test than that of the adsorbent due to a large surface area.