Evaluation of Process Control Schemes for Sour Water Strippers in Petroleum Refining
學年 109
學期 2
出版（發表）日期 2021-02-16
作品名稱 Evaluation of Process Control Schemes for Sour Water Strippers in Petroleum Refining
作品名稱（其他語言）
著者 Chii-Dong Ho; Yih-Hang Chen ; Chao-Min Chang; Hsuan Chang
單位
出版者
著錄名稱、卷期、頁數 Processes 9(2), 363
摘要 For the sour water strippers in petroleum refinery plants, three prediction models were developed first, including the estimators of sour water feed concentrations using convenient online measurements, the minimum reboiler duty and the corresponding internal temperature at a specific location (Tstage,29). Feedforward control schemes were developed based on these prediction models. Four categories of control schemes, including feedforward, feedback, feedback with external reset, and feedforward-feedback, were proposed and evaluated by the rigorous dynamic simulation model of the sour water stripper for their dynamic responses to the sour water feed stream disturbances. The comparison of control performance, in terms of the settling time, integrated absolute error (IAE) of the NH3 concentration of the stripped sour water and IAE of the specific reboiler duty, reveals that FFT (feedforward control of Tstage,29) and FBA-DT3 (feedback control with 3 min concentration measurement delay) are the best control schemes. The second-best control scheme is FBAT (cascade feedback control of concentration with temperature).
關鍵字 sour water;stripping;process control;soft sensors
語言 en
ISSN 2227-9717
期刊性質 國外
收錄於 SCI
產學合作
通訊作者
審稿制度 否
國別 CHE
公開徵稿
出版型式 ,電子版
相關連結

機構典藏連結 ( http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/125261 )