Optimal control of a batch cooling seeded crystallizer

被引：56

作者：

Hu, Q ^{[1
]}

Rohani, S ^{[1
]}

Wang, DX ^{[1
]}

Jutan, A ^{[1
]}

机构：

[1] Univ Western Ontario, Dept Chem & Biochem Engn, London, ON N6A 5B9, Canada

来源：

POWDER TECHNOLOGY | 2005年 / 156卷 / 2-3期

关键词：

batch crystallization; seed crystals; crystal size distribution; crystallization kinetics; ammonium sulfate;

D O I：

10.1016/j.powtec.2005.04.010

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Temperature profile of a batch crystallization has a direct effect on the product qualities. This paper deals with finding a temperature profile such that an objective function pertinent to the final-time product qualities is minimized. By using the concept of population balance, a new method for solving the population balance equation (PBE) is introduced. The optimization algorithm finds the minimum of the objective function with respect to a parameter vector temperature input, subject to the mass balance dynamics as well as the PBE. The results for natural cooling, linear cooling and optimal cooling are compared. The sensitivity of the optimal solution with respect to the model parameters is computed. The proposed strategies are evaluated experimentally for an ammonium sulfate-water system. (c) 2005 Elsevier B.V. All rights reserved.

引用

页码：170 / 176

页数：7

共 14 条

[1]

Ajinkya M.B., 1974, CHEM ENG COMMUN, V1, P181

[2] Nonlinear control of particulate processes [J].

Chiu, T ;

Christofides, PD .

AICHE JOURNAL, 1999, 45 (06) :1279-1297

[3]

CHRISTOFIDES PD, 2002, PARTICLE TECHNOLOGY

[4] Optimal seeding in batch crystallization [J].

Chung, SH ;

Ma, DL ;

Braatz, RD .

CANADIAN JOURNAL OF CHEMICAL ENGINEERING, 1999, 77 (03) :590-596

[5] Hybrid predictive control of nonlinear systems: method and applications to chemical processes [J].

El-Farra, NH ;

Mhaskar, P ;

Christofides, PD .

INTERNATIONAL JOURNAL OF ROBUST AND NONLINEAR CONTROL, 2004, 14 (02) :199-225

[6] Nonlinear kinetic parameter estimation for batch cooling seeded crystallization [J].

Hu, Q ;

Rohani, S ;

Wang, DX ;

Jutan, A .

AICHE JOURNAL, 2004, 50 (08) :1786-1794

[7] PROGRAMMED COOLING CRYSTALLIZATION OF POTASSIUM SULFATE SOLUTIONS [J].

JONES, AG ;

MULLIN, JW .

CHEMICAL ENGINEERING SCIENCE, 1974, 29 (01) :105-118

[8] Advanced control of crystallization processes [J].

Braatz, Richard D. .

Annual Reviews in Control, 2002, 26 I :87-99

[9]

Matthews H. B., 1997, THESIS U WISCONSIN M

[10] MODEL IDENTIFICATION AND CONTROL STRATEGIES FOR BATCH COOLING CRYSTALLIZERS [J].

MILLER, SM ;

RAWLINGS, JB .

AICHE JOURNAL, 1994, 40 (08) :1312-1327

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