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Ko, Moon Kyu 建陽大學校 2000 建陽論叢 Vol.- No.8
With the development of technology, processes have become more sophisticated and therefore systems to be controlled and monitored with many requirements have become more different. Through the selection of control strategies, control software has to be developed for monitoring, controlling and recording of critical process parameters. All control software development is to be covered by written software quality assurance plans which include specific purpose, scope of software to be developed, and intended use of software. And also control software development should be documented.
QDMC Control of Fiexd-Bed Reactor
Ko, Moon Kyu 建陽大學校 1997 建陽論叢 Vol.- No.5
Implementation of the QDMC algorithm to a fixed-bed reactor has been demonstrated. Simulation results using a 20th-order nonlinear ODE model of fixed-bed reactor at the nominal operating conditions have been presented for single-input single-output (SISO) control case. In the presence of large time delays and inverse response, QDMC shows considerably better performance than PI controller. The QDMC shows excellent set point tracking responses and disturbance rejection by manipulating the feed gas temperature under inverse responses and nonminimum phase characteristics.
DYNAMIC ANALYSIS OF AN AUTOTHERMAL REACTOR
Ko, Moon Kyu 建陽大學校 1996 建陽論叢 Vol.- No.4
A detailed simulation of a complex nonlinear distributed parameter industrial process implemented with CSMP is presented. The ARICHE (Autothermal Reactor with Internal Countercurrent Heat Exchange) carrying out the catalyzed water-gas shift reaction is the industrial process chosen for simulation.
Catalytic Synthesis of p-HPGM with Zeolite
한진규,고문규,임현주 한국공업화학회 2019 한국공업화학회 연구논문 초록집 Vol.2019 No.1
p-HPGM(hydroxy-phenylglycine methyl ester) is an important intermediate production of amoxicillin. Amoxicillin had been prepared by biosynthesis method and recently it is synthesized with strong acid. With increasing demand of environmental regulations a use of strong acid often involves a control of hazardous substances throughout production, treatment of waste streams and emissions. Fisher-esterification which uses for production of p-HPGM is favored with a large excess of alcohol in the presence of a strong acid such as sulfuric acid and tosylic acid. Zeolites can help reduce a use of strong acid. Reaction of Fisher esterification is carried out over different ratios of Al/Si of HZSM-5 and HZSM-11 and compared. Synthesized zeolites were characterized with XRD, BET, EDX, FT-IR, Pyridine-TPD, UV-Vis.
Sn을 지지체로 이용한 금속 혼합물 촉매의 특성 비교 연구
김지현,고문규,이경태,정근우,김성보 한국공업화학회 2015 한국공업화학회 연구논문 초록집 Vol.2015 No.1
균일계 반응에서 반응 후 반응물로부터 촉매의 분리 및 재활용 과정은 비효율적이고 여러 환경문제를 포함하고 있어 환경 친화적인 화학공정 개발이 필요하다. 불균계 반응에서 고체 촉매의 안정성 및 분리의 용이함에 있어서 관심을 받고 많은 연구가 진행 중이다. 더불어 Sn촉매는 수지반응을 강력히 촉진시키며 아민촉매와 병용하면 반응성의 상승효과를 가져온다. 본 연구에서는 기존 고체 촉매의 활성성분의 침출로 인한 활성과 수명 저하를 막기 위해 Ni, Co, Cu, Ce, Mg, Zn을 이용하여 합침법으로 촉매를 제조하고 제조된 촉매는 XRD, FT-IR, UV-Vis, Pyridine흡착을 통해 특성을 비교 분석하였다.