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- korean
- Conflict of Interest
- In relation to this article, we declare that there is no conflict of interest.
- Publication history
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Received August 18, 2022
Revised November 1, 2022
Accepted January 13, 2023
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This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/bync/3.0) which permits
unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
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바이오 기반 2,3-butanediol 증류 공정의 제어 및 동적 최적화
Process Control and Dynamic Optimization of Bio-based 2,3-butanediol Distillation Column
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Abstract
화장품, 비료 등 다양한 분야에서 사용되는 2,3-butanediol (2,3-BDO) 는 고부가가치 물질로 그 수요가 점차 증가하
고 있다. 미생물의 발효로부터 생산된 2,3-BDO는 발효의 부산물을 포함하고 있을 뿐만 아니라 발효 조건에 따라 피드
조성의 변동이 심하여 생산물의 목표 순도에 도달하기 위한 분리 공정의 효율적인 운전이 어렵다. 따라서 본 연구에서는
바이오 기반 2,3-BDO 증류 공정의 동적 최적화를 통해 피드의 농도가 변화할 때 하단 생산물의 2,3-BDO 농도를 99 wt%
이상으로 제어할 수 있는 최적의 제어 경로를 탐색하였다. 정상 및 동적 상태 공정 모사와 Proportional integral (PI) 제
어기 설계 후 동적 최적화를 차례로 수행하였다. 그 결과 하단 생산물의 2,3-BDO 농도와 설정점 사이의 오차가 75.2%
감소하였다.
Butanediol (2,3-BDO), which is used in various fields such as cosmetics and fertilizers, is a high valueadded substance and the demand for it is gradually increasing. 2,3-BDO produced from the fermentation of
microorganisms not only contains by-products of fermentation, but also varies greatly in feed composition depending on
fermentation conditions, so it is difficult to efficiently operate the separation process to reach the target purity of the
product. Therefore, in this study, through dynamic optimization of the bio-based 2,3-BDO distillation process, the
optimal control route was explored to control the 2,3-BDO concentration of the bottom product to 99 wt% or more,
when feed concentration changes. Steady and dynamic state process simulation, proportional integral (PI) controller
design, and dynamic optimization were sequentially performed. As a result, the error between the 2,3-BDO
concentration and the set point of the bottom product was reduced by 75.2%
Keywords
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