Advanced process control of CDU aiming to diversity of crude oil
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Advanced process control of CDU aiming to diversity of crude oil
CIESC JournalIssue 10, Pages: 2522-2528(2009)
作者机构:
1. 清华大学自动化系
2. 清华信息科学与技术国家实验室
3. 北京清大腾飞公司
4. 中国石油锦西石化分公司
作者简介:
基金信息:
DOI:
CLC:
Online First:05 October 2009,
Published:05 October 2009
稿件说明:
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LV Wenxiang, BAI Liang, HUANG Dexian, et al. Advanced process control of CDU aiming to diversity of crude oil[J]. CIESC Journal, 2009, (10): 2522-2528.
DOI:
LV Wenxiang, BAI Liang, HUANG Dexian, et al. Advanced process control of CDU aiming to diversity of crude oil[J]. CIESC Journal, 2009, (10): 2522-2528.DOI:
Advanced process control of CDU aiming to diversity of crude oil
Aiming at the great difficulty in crude oil unit (CDU) operation for the diversity of crude oil
an advanced process control comprehensive scheme is presented
which composed of both decreasing the property variety of crude oil feedin and introducing parameters reflecting property into soft sensor and controller.By scheduling and blending the optimization of multiple crude oils to be refined
the blended crude oil feed-in has relatively steady properties and has small influence on parameters of the unit operation
hence the disturbance from the change in operating point is decreased remarkably.On the other hand
for the remaining small property variety of blended crude oil
the parameters reflecting property are introduced to soft sensor calculation and advanced process controller based on model predictive control to overcome the disturbance of property variety.By scheduling and blending optimization
the parameter varieties of unit operation are small
which makes it possible that the soft sensor and predictive control using linear approximate model have a great performance.Application on a CDU with multiple crude oils shows the validity of the comprehensive scheme.