| 학회 |
한국화학공학회 |
| 학술대회 |
2010년 가을 (10/21 ~ 10/22, 대전컨벤션센터) |
| 권호 |
16권 2호, p.1349 |
| 발표분야 |
공정시스템 |
| 제목 |
Development of a Hybrid Soft Sensor for the Real-Time Monitoring of Ammonium Salts in Ammonia-Based CO2 Capture Processes |
| 초록 |
Ammonia-based CO2 capture processes consume energy to regenerate ammonia from ammonium salts. The type and concentration of the salts need to be monitored to prevent excessive consumption in regeneration energy. Thus, real-time monitoring for energy control is beneficial for energy and cost saving. The objective of this study is to develop a hybrid soft sensor to monitor ammonium salts in real time by linking the partial least square (PLS) model as a data-driven model to the vapor-liquid-solid (VLS) model as a thermodynamic model. pH, conductivity and temperature are used as the inputs for the data-driven model whose outputs are subsequently fed into VLS model as constraints. The results of the hybrid soft sensor are correlated at a level of R2＞0.80 with the results of instrumental analysis. Therefore, the hybrid soft sensor can be used to control regeneration energy and enhance the energy efficiency of ammonia-based processes. |
| 저자 |
장용수1, 임성린1, 김유리1, 이민우2, 김제영3, 한건우3, 안치규3, 이해우4, 박종문1
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| 소속 |
1포항공과대, 2계명대, 3RIST, 4Univ. of Massachusetts Lowell |
| 키워드 |
CO2; ammonia; carbon capture process; absorption; soft sensor
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| E-Mail |
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| 원문파일 |
초록 보기 |
