Open-loop step responses for the MEA post-combustion capture process: Experimental results from the Esbjerg pilot plant

Faber, Richard; Köpcke, M.; Biede, Ole; Knudsen, Jacob Nygaard; Andersen, Jens Christian

doi:10.1016/j.egypro.2011.02.008

Cited by 40 publications

(42 citation statements)

References 5 publications

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“…This confirms the buffering effect by the chemical process in terms of the response of CO 2 desorbed when the flue gas volumetric flow rate is changed. There is evidence to support this observation in previous pilot plant studies [46][47][48]. The delay in the response is partly attributed to solvent circulation time and the redistribution of liquid.…”

Section: Flue Gas Flow Rate Ramp-up and Step Changes In Reboiler Dutysupporting

confidence: 75%

“…Faber et al [46] conducted open-loop step change responses at the Esbjerg pilot plant; this type of analysis helps in understanding the transient performance of the process. They concluded that the overall system acts as a buffer to perturbations at the plant inlet and that the coupled operation of the absorber/desorber unit led to fluctuations in the system when all parameters-flue gas and solvent mass flow rates and reboiler duty-are changed simultaneously.…”

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confidence: 99%

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Dynamic Process Model Validation and Control of the Amine Plant at CO2 Technology Centre Mongstad

2017

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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.

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Section: Flue Gas Flow Rate Ramp-up and Step Changes In Reboiler Dutysupporting

confidence: 75%

mentioning

confidence: 99%

Dynamic Process Model Validation and Control of the Amine Plant at CO2 Technology Centre Mongstad

2017

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“…The application of the step-change technique to pilot plant operation will significantly improve the consistency and reproducibility of dynamic results. This step-wise technique was previously performed in another PCC pilot plants at Esbjerg Power Station in Denmark (Faber et al, 2010) and RWE Power in Germany (Moser et al, 2011).…”

Section: Experimental Program: Step-change Approach For Dynamic Operamentioning

confidence: 99%

Flexible operation of CSIRO's post-combustion CO2 capture pilot plant at the AGL Loy Yang power station

Bui

Gunawan

Verheyen

et al. 2016

International Journal of Greenhouse Gas Control

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Flexible operation has the potential to significantly improve the economic viability of post-combustion CO2 capture (PCC). However, the impact of disturbances from flexible operation of the PCC process is unclear.The purpose of this study was to investigate the effects of flexible operation in a PCC pilot plant by implementing step-changes for improved dynamic data reliability. The flexible operation campaign was conducted at the CSIRO PCC pilot plant at AGL Loy Yang using monoethanolamine (MEA) absorbent. The pilot plant was operated under a broad range of transient conditions (changing flue gas flow, liquid absorbent flow and steam pressure) to capture the dynamics of a PCC process during flexible operation. The study demonstrated that the dynamics of flue gas flow rate was faster than absorbent flow rate. The greatest CO2 removal % was achieved at the lowest flue gas flow rate or at the highest absorbent flow rate; however the latter provided improved energy efficiency. The steam pressure parameter could adjust the temperature of all columns simultaneously which can be used to compensate for effects from ambient conditions or heat losses. These results verify the technical feasibility of flexible PCC operation and provide a suitable dataset for dynamic model validation.

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“…During the tests, CO 2 captured is either vented into the atmosphere (Alstom 2009(Alstom , 2011Chopin 2014), transported and stored underground (Ju 2015;MIT 2016b) or sold to beverage industries (Ju 2015). Investigations carried out during the pilot plant studies include (1) profiling different solvents; (2) scale-up procedure; (3) solvent degradability; (4) corrosion studies; (5) operation study and (6) process energy efficiency (Chi and Rochelle 2002;Uyanga and Idem 2007;Davis and Rochelle 2009;Kittel et al 2009;Mangalapally et al 2009;Alstom 2011;Faber et al 2011;Seibert et al 2011;Rabensteiner et al 2014). …”

Section: Solventsmentioning

confidence: 99%

Current status and future development of solvent-based carbon capture

Oko

Wang

Joel

2017

Int J Coal Sci Technol

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Solvent-based carbon capture is the most commercially-ready technology for economically and sustainably reaching carbon emission reduction targets in the power sector. Globally, the technology has been deployed to deal with flue gases from large scale power plants and different carbon-intensive industries. The success of the technology is due to significant R&D activities on the process development and decades of industrial experience on acid gas removal processes from gaseous mixtures. In this paper, current status of PCC based on chemical absorption-commercial deployment and demonstration projects, analysis of different solvents and process configurations-is reviewed. Although some successes have been recorded in developing this technology, its commercialization has been generally slow as evidenced in the cancellation of high profile projects across the world. This is partly due to the huge cost burden of the technology and unpredictable government policies. Different research directions, namely new process development involving process intensification, new solvent development and a combination of both, are discussed in this paper as possible pathways for reducing the huge cost of the technology.

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Open-loop step responses for the MEA post-combustion capture process: Experimental results from the Esbjerg pilot plant

Cited by 40 publications

References 5 publications

Dynamic Process Model Validation and Control of the Amine Plant at CO2 Technology Centre Mongstad

Dynamic Process Model Validation and Control of the Amine Plant at CO2 Technology Centre Mongstad

Flexible operation of CSIRO's post-combustion CO2 capture pilot plant at the AGL Loy Yang power station

Current status and future development of solvent-based carbon capture

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