Closing the carbon loop in Power-to-Fuel-to-Power systems using Ca(OH)2 as CO2 sorbent
Existing power-to-X-to-power (PtXtP) systems re-emit CO2 when X is a synthetic carbonaceous fuel, as it is uneconomical to capture the CO2 during the brief periods of operation when back-up power is produced by burning X with air. This work presents a new strategy to re-capture such CO2 by using as sorbent a large flow of stored Ca(OH)2, which is produced from a reservoir of CaCO3. This approach can bring to zero or even negative values the carbon footprints, in particular when the pure CO2 evolved from the CaCO3 calciner is recycled to the Power-to-fuel subsystem or stored permanently. The capture process decouples the CO2 capture and the sorbent regeneration steps by using an two intermediate storage systems of Ca(OH)2 and CaCO3. This allows to reduce the capacity of the elements related with the sorbent regeneration and the investment cost, thus minimizing the economic penalty. A basic analysis using information available related to commercial technologies for Calcium Looping and PtXtP systems yields round-trip efficiencies of 0.253 and avoided CO2 cost around 60 $/tCO2.
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Format: | comunicación de congreso biblioteca |
Language: | English |
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2022
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Subjects: | CO2 Capture, calcium looping, Ca(OH)2, Ensure access to affordable, reliable, sustainable and modern energy for all, Build resilient infrastructure, promote inclusive and sustainable industrialization and foster innovation, |
Online Access: | http://hdl.handle.net/10261/333301 |
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dig-incar-es-10261-3333012023-08-16T10:43:19Z Closing the carbon loop in Power-to-Fuel-to-Power systems using Ca(OH)2 as CO2 sorbent Arias Rozada, Borja Álvarez Criado, Yolanda Abanades García, Juan Carlos Research Fund for Coal and Steel Ministerio de Ciencia e Innovación (España) CO2 Capture calcium looping Ca(OH)2 Ensure access to affordable, reliable, sustainable and modern energy for all Build resilient infrastructure, promote inclusive and sustainable industrialization and foster innovation Existing power-to-X-to-power (PtXtP) systems re-emit CO2 when X is a synthetic carbonaceous fuel, as it is uneconomical to capture the CO2 during the brief periods of operation when back-up power is produced by burning X with air. This work presents a new strategy to re-capture such CO2 by using as sorbent a large flow of stored Ca(OH)2, which is produced from a reservoir of CaCO3. This approach can bring to zero or even negative values the carbon footprints, in particular when the pure CO2 evolved from the CaCO3 calciner is recycled to the Power-to-fuel subsystem or stored permanently. The capture process decouples the CO2 capture and the sorbent regeneration steps by using an two intermediate storage systems of Ca(OH)2 and CaCO3. This allows to reduce the capacity of the elements related with the sorbent regeneration and the investment cost, thus minimizing the economic penalty. A basic analysis using information available related to commercial technologies for Calcium Looping and PtXtP systems yields round-trip efficiencies of 0.253 and avoided CO2 cost around 60 $/tCO2. The authors acknowledge the financial support provided by the European Union under the Research Fund for Coal and Steel (RFCS) Program (BackCap Project, GA 10103400) and by the Spanish Ministry of Science and Innovation under the R&D Program Oriented to Challenges of the Society (RTI2018-097224-B-I00). Peer reviewed 2023-08-16T10:43:19Z 2023-08-16T10:43:19Z 2022 comunicación de congreso 16th International Conference on Greenhouse Gas Control Technologies, GHGT-16 (2022) http://hdl.handle.net/10261/333301 en #PLACEHOLDER_PARENT_METADATA_VALUE# #PLACEHOLDER_PARENT_METADATA_VALUE# info:eu-repo/grantAgreement/EC/RFCS/10103400 info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/RTI2018-097224-B-I00/ES/CAPTURA DE CO2 MEDIANTE CA(OH)2 EN TURBINAS DE GAS NATURAL OPERADAS COMO BACK-UP/ Publisher's version Sí open |
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CO2 Capture calcium looping Ca(OH)2 Ensure access to affordable, reliable, sustainable and modern energy for all Build resilient infrastructure, promote inclusive and sustainable industrialization and foster innovation CO2 Capture calcium looping Ca(OH)2 Ensure access to affordable, reliable, sustainable and modern energy for all Build resilient infrastructure, promote inclusive and sustainable industrialization and foster innovation |
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CO2 Capture calcium looping Ca(OH)2 Ensure access to affordable, reliable, sustainable and modern energy for all Build resilient infrastructure, promote inclusive and sustainable industrialization and foster innovation CO2 Capture calcium looping Ca(OH)2 Ensure access to affordable, reliable, sustainable and modern energy for all Build resilient infrastructure, promote inclusive and sustainable industrialization and foster innovation Arias Rozada, Borja Álvarez Criado, Yolanda Abanades García, Juan Carlos Closing the carbon loop in Power-to-Fuel-to-Power systems using Ca(OH)2 as CO2 sorbent |
description |
Existing power-to-X-to-power (PtXtP) systems re-emit CO2 when X is a synthetic carbonaceous fuel, as it is uneconomical to capture the CO2 during the brief periods of operation when back-up power is produced by burning X with air. This work presents a new strategy to re-capture such CO2 by using as sorbent a large flow of stored Ca(OH)2, which is produced from a reservoir of CaCO3. This approach can bring to zero or even negative values the carbon footprints, in particular when the pure CO2 evolved from the CaCO3 calciner is recycled to the Power-to-fuel subsystem or stored permanently. The capture process decouples the CO2 capture and the sorbent regeneration steps by using an two intermediate storage systems of Ca(OH)2 and CaCO3. This allows to reduce the capacity of the elements related with the sorbent regeneration and the investment cost, thus minimizing the economic penalty. A basic analysis using information available related to commercial technologies for Calcium Looping and PtXtP systems yields round-trip efficiencies of 0.253 and avoided CO2 cost around 60 $/tCO2. |
author2 |
Research Fund for Coal and Steel |
author_facet |
Research Fund for Coal and Steel Arias Rozada, Borja Álvarez Criado, Yolanda Abanades García, Juan Carlos |
format |
comunicación de congreso |
topic_facet |
CO2 Capture calcium looping Ca(OH)2 Ensure access to affordable, reliable, sustainable and modern energy for all Build resilient infrastructure, promote inclusive and sustainable industrialization and foster innovation |
author |
Arias Rozada, Borja Álvarez Criado, Yolanda Abanades García, Juan Carlos |
author_sort |
Arias Rozada, Borja |
title |
Closing the carbon loop in Power-to-Fuel-to-Power systems using Ca(OH)2 as CO2 sorbent |
title_short |
Closing the carbon loop in Power-to-Fuel-to-Power systems using Ca(OH)2 as CO2 sorbent |
title_full |
Closing the carbon loop in Power-to-Fuel-to-Power systems using Ca(OH)2 as CO2 sorbent |
title_fullStr |
Closing the carbon loop in Power-to-Fuel-to-Power systems using Ca(OH)2 as CO2 sorbent |
title_full_unstemmed |
Closing the carbon loop in Power-to-Fuel-to-Power systems using Ca(OH)2 as CO2 sorbent |
title_sort |
closing the carbon loop in power-to-fuel-to-power systems using ca(oh)2 as co2 sorbent |
publishDate |
2022 |
url |
http://hdl.handle.net/10261/333301 |
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