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HWAHAK KONGHAK,
Vol.38, No.2, 296-303, 2000
Vol.38, No.2, 296-303, 2000
염소 라디칼이 촉매로 작용하는 에틸렌 디클로라이드 열분해 반응의 해석
Analysis of Cl-Radical Catalysis in Ethylene Dichloride Pyrolysis Reaction
본 연구에서는 무산소 조건의 Ethylene Dichloride(EDC) 열분해 공정을 화학 반응 속도론 기법을 이용하여 해석하고 그 결과를 현재 조업중인 실제 EDC 열분해 공정 결과와 비교 분석하였다. 200여개의 radical 연쇄 반응으로 이루어지는 EDC 열분해 반응 네트워크를 H 및 Cl abstraction, 열분해로 인한 radical 생성 및 소멸 이론에 따라 분류하여 전체 반응 네트워크를 체계적으로 구성하였으며, 그 결과를 바탕으로 조업 온도와 첨가제의 변화에 따른 EDC 분해 효율과 부산물 산출비율에 관한 상관 관계를 도출하였다. 본 연구를 통하여 상용 EDC 분해로의 해석 기법을 확립하게 되었으며, vinyl chloride의 수율 향상 방법 및 부산물 생성 메커니즘을 확립하여 EDC 분해로의 최적 조업 조건을 도출하는 방법론을 제시하였다.
The pyrolysis of ethylene dichloride(EDC) is investigated on the base of kinetic mechanism schemes. Hundreds of radicals and molecular reactions and H and Cl abstraction are involved and thermodynamic functions and reversible kinetics were considered simultaneously in the schemes. The cracking depth of EDC and the amount of by-products are calculated as a function of operating temperature and additive concentration. The calculated results are in good agreement with the trend of the commercial plant data. Suggested methodology can provide practical responses involved in the operation of an industrial EDC pylorysis unit.
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