Control of the rotary calciner for soda ash production

Conference proceedings article

Authors / Editors

Research Areas

No matching items found.

Publication Details

Author list: Cristea VM, Agachi PS

Publisher: Elsevier: Monograph Series

Place: AMSTERDAM

Publication year: 2002

Journal: Computer Aided Chemical Engineering (1570-7946)

Journal acronym: COMP AID CH

Volume number: 10

Start page: 463

End page: 468

Number of pages: 6

ISBN: 0-444-51109-1

ISSN: 1570-7946

Languages: English-Great Britain (EN-GB)

View in Web of Science | View citing articles in Web of Science

Abstract

The paper presents the dynamic simulation results obtained by modelling and control of the rotary calciner for sodium carbonate production by the endothermic decomposition of sodium sesquicarbonate. The calciner model with distributed parameters consists of three zones, each described by sets of PDE's: the combustion zone, the reaction zone and the disengaging zone. Dynamic responses to typical disturbances are presented and compared with industrial and literature data. As main target variable, the sodium sesquicarbonate content control at the discharge end of the calciner is investigated using different control approaches. The classical PID control and the Nonlinear Model Predictive Control (NMPC) algorithms are compared in mixed feedforward and feedback schemes. Incentives are revealed for particular control structures using feedforward NMPC, becoming also a feasible approach for the control of similar processes taking place in rotary calciners.

Keywords

No matching items found.

Documents

No matching items found.