A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Negative $ CO_{2} $ emissions in the lime production using an indirectly heated carbonate looping process
https://orcid.org/0000-0002-0374-3673
https://orcid.org/0000-0003-2092-326X
https://orcid.org/0000-0003-0739-9598
Abstract Lime is an essential raw material for iron and steel production, in construction and agriculture, in civil engineering, in environmental protection, and in manifold chemical manufacturing processes. To address the problem of unavoidable process $ CO_{2} $ emissions associated with the production of lime, efficient capture technologies need to be developed and implemented. The indirectly heated carbonate looping (IHCaL) process is an efficient candidate for this application because it utilizes lime as the sorbent for the $ CO_{2} $ capture. In this work, a retrofit configuration of this process is presented and analyzed for net negative $ CO_{2} $ emissions. This is done considering different fuels that provide the heat required for the regeneration of the sorbent. The different scenarios were simulated with an AspenPlus® model, key performance indicators were calculated, and the process was compared with other post-combustion capture methods. The results show that net negative $ CO_{2} $ emissions as high as −1805 $ kg_{CO2} $/$ t_{CaO} $, calculated with a state-of-the-art coal power plant energy scenario (ηe = 44.2 %; eref,el = 770 $ kg_{CO2} $/$ MWh_{el} $), can be obtained. This represents an equivalent $ CO_{2} $ avoidance of more than 230% with respect to the reference plant without capture (1368 $ kg_{CO2} $/$ t_{CaO} $). A specific primary energy consumption for $ CO_{2} $ avoided (SPECCA) lower than 1.5 $ MJ_{LHV} $/$ kg_{CO2,av} $ was achieved for the same energy scenario. Particularly promising results can be accomplished when applying fuels with high biogenic fraction and low specific $ CO_{2} $ emissions, such as solid recovered fuels (SRFs) with a high calorific value.
Negative $ CO_{2} $ emissions in the lime production using an indirectly heated carbonate looping process
https://orcid.org/0000-0002-0374-3673
https://orcid.org/0000-0003-2092-326X
https://orcid.org/0000-0003-0739-9598
Abstract Lime is an essential raw material for iron and steel production, in construction and agriculture, in civil engineering, in environmental protection, and in manifold chemical manufacturing processes. To address the problem of unavoidable process $ CO_{2} $ emissions associated with the production of lime, efficient capture technologies need to be developed and implemented. The indirectly heated carbonate looping (IHCaL) process is an efficient candidate for this application because it utilizes lime as the sorbent for the $ CO_{2} $ capture. In this work, a retrofit configuration of this process is presented and analyzed for net negative $ CO_{2} $ emissions. This is done considering different fuels that provide the heat required for the regeneration of the sorbent. The different scenarios were simulated with an AspenPlus® model, key performance indicators were calculated, and the process was compared with other post-combustion capture methods. The results show that net negative $ CO_{2} $ emissions as high as −1805 $ kg_{CO2} $/$ t_{CaO} $, calculated with a state-of-the-art coal power plant energy scenario (ηe = 44.2 %; eref,el = 770 $ kg_{CO2} $/$ MWh_{el} $), can be obtained. This represents an equivalent $ CO_{2} $ avoidance of more than 230% with respect to the reference plant without capture (1368 $ kg_{CO2} $/$ t_{CaO} $). A specific primary energy consumption for $ CO_{2} $ avoided (SPECCA) lower than 1.5 $ MJ_{LHV} $/$ kg_{CO2,av} $ was achieved for the same energy scenario. Particularly promising results can be accomplished when applying fuels with high biogenic fraction and low specific $ CO_{2} $ emissions, such as solid recovered fuels (SRFs) with a high calorific value.
Negative $ CO_{2} $ emissions in the lime production using an indirectly heated carbonate looping process
https://orcid.org/0000-0002-0374-3673
https://orcid.org/0000-0003-2092-326X
https://orcid.org/0000-0003-0739-9598
Abstract Lime is an essential raw material for iron and steel production, in construction and agriculture, in civil engineering, in environmental protection, and in manifold chemical manufacturing processes. To address the problem of unavoidable process $ CO_{2} $ emissions associated with the production of lime, efficient capture technologies need to be developed and implemented. The indirectly heated carbonate looping (IHCaL) process is an efficient candidate for this application because it utilizes lime as the sorbent for the $ CO_{2} $ capture. In this work, a retrofit configuration of this process is presented and analyzed for net negative $ CO_{2} $ emissions. This is done considering different fuels that provide the heat required for the regeneration of the sorbent. The different scenarios were simulated with an AspenPlus® model, key performance indicators were calculated, and the process was compared with other post-combustion capture methods. The results show that net negative $ CO_{2} $ emissions as high as −1805 $ kg_{CO2} $/$ t_{CaO} $, calculated with a state-of-the-art coal power plant energy scenario (ηe = 44.2 %; eref,el = 770 $ kg_{CO2} $/$ MWh_{el} $), can be obtained. This represents an equivalent $ CO_{2} $ avoidance of more than 230% with respect to the reference plant without capture (1368 $ kg_{CO2} $/$ t_{CaO} $). A specific primary energy consumption for $ CO_{2} $ avoided (SPECCA) lower than 1.5 $ MJ_{LHV} $/$ kg_{CO2,av} $ was achieved for the same energy scenario. Particularly promising results can be accomplished when applying fuels with high biogenic fraction and low specific $ CO_{2} $ emissions, such as solid recovered fuels (SRFs) with a high calorific value.
Negative $ CO_{2} $ emissions in the lime production using an indirectly heated carbonate looping process
Greco-Coppi, Martin (author) / Hofmann, Carina (author) / Walter, Diethelm (author) / Ströhle, Jochen (author) / Epple, Bernd (author)
2023
Article (Journal)
Electronic Resource
English
BKL:
43.47
Globale Umweltprobleme
/
43.47$jGlobale Umweltprobleme
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