Dynamic Process Model Validation and Control of the Amine Plant at CO 2 Technology Centre Mongstad

Rubén M. Montañés, Nina E. Flø and Lars O. Nord
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Rubén M. Montañés: Department of Energy and Process Engineering, NTNU—Norwegian University of Science and Technology, NO-7491 Trondheim, Norway
Nina E. Flø: CO 2 Technology Center Mongstad, NO-5954 Mongstad, Norway
Lars O. Nord: Department of Energy and Process Engineering, NTNU—Norwegian University of Science and Technology, NO-7491 Trondheim, Norway

Energies, 2017, vol. 10, issue 10, 1-36

Abstract: This paper presents a set of steady-state and transient data for dynamic process model validation of the chemical absorption process with monoethanolamine (MEA) for post-combustion CO 2 capture of exhaust gas from a natural gas-fired power plant. The data selection includes a wide range of steady-state operating conditions and transient tests. A dynamic process model developed in the open physical modeling language Modelica is validated. The model is utilized to evaluate the open-loop transient performance at different loads of the plant, showing that pilot plant main process variables respond more slowly at lower operating loads of the plant, to step changes in main process inputs and disturbances. The performance of four decentralized control structures is evaluated, for fast load change transient events. Manipulation of reboiler duty to control CO 2 capture ratio at the absorber’s inlet and rich solvent flow rate to control the stripper bottom solvent temperature showed the best performance.

Keywords: pilot plant; transient data; dynamic simulation; flexibility; post-combustion; decentralized control; process dynamics; chemical absorption; CO 2 capture (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2017
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (4)

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