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Optimization of Amine Treating Units using Rate-Based Model

비평형단 모델 사용 통한 아민 처리 공정 최적화

한유돈 (HAN, Yu-Don, 포항공과대학교)

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초록 moremore
아민 처리 공정은 Reactive Absorption 이 일어나는 비이상적인 거동을 보이는 시스템으로 Column Geometry 를 반영하여 성능을 예측하는 Rate-Based Model 로 모사가 가능하며, 이를 통해 아민 처리 공정의 공정 설계 및 최적화 연구가 가능해졌다. 이 논문에서는 Diethanolamine (DEA) 를 사용하는 아민 처리 공정을 Rate-Based Model로 공정 모사하여 먼저 운전 자료와 비교를 통한 모델의 유효성을 검증해 보고, 이후 기존 Industrial Practice 를 적용하여 설계된 ...
아민 처리 공정은 Reactive Absorption 이 일어나는 비이상적인 거동을 보이는 시스템으로 Column Geometry 를 반영하여 성능을 예측하는 Rate-Based Model 로 모사가 가능하며, 이를 통해 아민 처리 공정의 공정 설계 및 최적화 연구가 가능해졌다. 이 논문에서는 Diethanolamine (DEA) 를 사용하는 아민 처리 공정을 Rate-Based Model로 공정 모사하여 먼저 운전 자료와 비교를 통한 모델의 유효성을 검증해 보고, 이후 기존 Industrial Practice 를 적용하여 설계된 기존 운전 조건의 적정성을 재 검토하는 최적화 연구를 수행하였다. 이 논문에서 Rate-Based Model 을 사용하여 수행한 최적화 결과는 특정 아민 공정에 대해 중요한 의미를 나타낼 수 있겠지만, 본 연구는 Industrial Practice 를 맹목적으로 준수할 때 간과하기 쉬운 Risk 를 검토하였다는 측면에서 중요한 의미를 지닌다.
초록 moremore
Amine Treating Unit where reactive absorption occurs far from the ideal behavior can be simulated by using Rate-Based Model with chemical reactions to predict the performance of Absorber and Regenerator. In this paper, Amine Treating Units that use aqueous diethanolamine (DEA) solution have been modeled to examine the validation of Rate-Based Model comparing with the plant operation data and to optimize the existing operating conditions which had been determined in accordance with industrial practice during the stage of Process Design. Although the optimization result given in this paper can be significant only for the particular column system, the study has the importance in that it has evaluated the risk that might be overlooked by blindly complying with the industrial practice.
Amine Treating Unit where reactive absorption occurs far from the ideal behavior can be simulated by using Rate-Based Model with chemical reactions to predict the performance of Absorber and Regenerator. In this paper, Amine Treating Units that use aqueous diethanolamine (DEA) solution have been modeled to examine the validation of Rate-Based Model comparing with the plant operation data and to optimize the existing operating conditions which had been determined in accordance with industrial practice during the stage of Process Design. Although the optimization result given in this paper can be significant only for the particular column system, the study has the importance in that it has evaluated the risk that might be overlooked by blindly complying with the industrial practice.
목차 moremore
ABSTRACT
CONTENTS
LIST OF TABLES
...
ABSTRACT
CONTENTS
LIST OF TABLES
LIST OF FIGURES
1. INTRODUCTION
1.1 Process Description
1.2 Process Design Approach
2. FRAMEWORK OF RATE-BASED MODEL
3. PHYSICAL PROPERTIES AND REACTIONS
3.1 Physical Properties
3.1.1 Parameters for Fugacity of Species i in a Vapor-Phase Mixture
3.1.2 Parameters for Fugacity of Species i in a Liquid-Phase Mixture
3.1.3 Transport Property
3.2 Chemical Reactions
4. PROCESS SIMULATION OF AMINE TREATING UNIT
4.1 Simulation Basis
4.2 Validation of Rate-Based Model
5. OPTIMIZATION RESULTS AND DISCUSSION
5.1 Total Number of Actual Trays and Circulating Rate
5.2 Lean Amine Temperature into Absorber
5.3 Operating Pressure of Amine Regenerator
5.4 Regenerator Feed Temperature
5.5 Plant capacity on the performance
6. CONCLUSIONS
요 약 문
REFERENCES
ACKNOWLEDGEMENTS