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Performance of a limestone-based coupled fluidized bed reactor system aiming CO2 capture in a 300 kWth pilot plant

Hofmann, Carina ; Greco-Coppi, Martin ; Ströhle, Jochen ; Epple, Bernd (2024)
Performance of a limestone-based coupled fluidized bed reactor system aiming CO2 capture in a 300 kWth pilot plant.
Fluidization XVII. Edinburgh, Scotland (21.05.2023-25.05.2023)
doi: 10.26083/tuprints-00028046
Conference or Workshop Item, Primary publication, Publisher's Version

Abstract

The carbonate looping (CaL) process is a promising efficient CO2 capture technology aiming at the decarbonisation of the cement and lime industries. The CaL is based on the reversible carbonation reaction of limestone, which comprises synergies with lime and cement plants since both process make use of limestone. A novel development of this process is the indirectly heated carbonate looping process (IHCaL), having the advantage over the standard CaL that no air separation unit (ASU) is necessary to generate the heat for calcination. Recently, 400 h of testing at a 300 kWth pilot plant were performed under conditions that are close to industrial applications for the cement and lime industry. The test rig consists of three coupled fluidized bed reactors: two bubbling fluidized bed reactors (BFB), calciner and combustor, and one circulating fluidized bed reactor (CFB), carbonator, while the system of calciner and carbonator are coupled through circulation of the solid sorbent. In this study, different operational conditions – such as variations in particle size distribution of the limestone, fluidization velocity, and solid inventory – are assessed and compared with regard to the hydrodynamic and thermodynamic behaviour of the fluidized bed system as well as the process performance.

Item Type: Conference or Workshop Item
Erschienen: 2024
Creators: Hofmann, Carina ; Greco-Coppi, Martin ; Ströhle, Jochen ; Epple, Bernd
Type of entry: Primary publication
Title: Performance of a limestone-based coupled fluidized bed reactor system aiming CO2 capture in a 300 kWth pilot plant
Language: English
Date: 4 September 2024
Place of Publication: Darmstadt
Collation: 12 Folien
Event Title: Fluidization XVII
Event Location: Edinburgh, Scotland
Event Dates: 21.05.2023-25.05.2023
DOI: 10.26083/tuprints-00028046
URL / URN: https://tuprints.ulb.tu-darmstadt.de/28046
Abstract:

The carbonate looping (CaL) process is a promising efficient CO2 capture technology aiming at the decarbonisation of the cement and lime industries. The CaL is based on the reversible carbonation reaction of limestone, which comprises synergies with lime and cement plants since both process make use of limestone. A novel development of this process is the indirectly heated carbonate looping process (IHCaL), having the advantage over the standard CaL that no air separation unit (ASU) is necessary to generate the heat for calcination. Recently, 400 h of testing at a 300 kWth pilot plant were performed under conditions that are close to industrial applications for the cement and lime industry. The test rig consists of three coupled fluidized bed reactors: two bubbling fluidized bed reactors (BFB), calciner and combustor, and one circulating fluidized bed reactor (CFB), carbonator, while the system of calciner and carbonator are coupled through circulation of the solid sorbent. In this study, different operational conditions – such as variations in particle size distribution of the limestone, fluidization velocity, and solid inventory – are assessed and compared with regard to the hydrodynamic and thermodynamic behaviour of the fluidized bed system as well as the process performance.

Status: Publisher's Version
URN: urn:nbn:de:tuda-tuprints-280462
Classification DDC: 600 Technology, medicine, applied sciences > 600 Technology
600 Technology, medicine, applied sciences > 620 Engineering and machine engineering
600 Technology, medicine, applied sciences > 624 Civil engineering and environmental protection engineering
600 Technology, medicine, applied sciences > 660 Chemical engineering
Divisions: 16 Department of Mechanical Engineering
16 Department of Mechanical Engineering > Institut für Energiesysteme und Energietechnik (EST)
16 Department of Mechanical Engineering > Institut für Energiesysteme und Energietechnik (EST) > Studies on carbon capture
TU-Projects: PTJ|03EE5025A|ACT-ANICA
Date Deposited: 04 Sep 2024 07:00
Last Modified: 05 Sep 2024 05:16
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