Effect of Hg on CO2 capture by solid sorbents in the presence of acid gases

N. Fernández-Miranda, Susana Garcia, M. Antonia Lopez-Anton, M. Rosa Martinez-Tarazona, Eloy S. Sanz-Pérez, M. Mercedes Maroto-Valer

Research output: Contribution to journalArticle

Abstract

Carbon dioxide Capture and Storage (CCS) is the main technology to mitigate CO2 emissions in the energy sector, being reversibly adsorption of CO2 on solid sorbents one of the most promising processes to be operated in post-combustion technology. Given the current state of development a number of problems still need to be addressed before solid sorbents can be employed for CO2 capture. One of these problems is the effect that some impurities in the flue gas have on the behavior of the sorbents. The aim of this work is to identify and evaluate the role of mercury species in flue gas containing acid gases on the performance of sorbents employed for CO2 capture. The influence of mercury on CO2 retention capacity was assessed using three commercial activated carbons (NORIT GCN, AIRPEL 1DS-1 and AIRPEL ULTRA DS5) and two mesostructured silica sorbents containing amino groups (SBA-PEI and SBA-TEPA). When Hg0 was incorporated into the gas stream, the behavior of the sorbents was modified. In general, the CO2 adsorption capacity decreased in the presence of Hg0 suggesting competition by both compounds for the same active sites. The strongest effect of Hg0 on CO2 adsorption was observed in the activated carbon with the highest micropore volume.
Original languageEnglish
Pages (from-to)367–374
Number of pages8
JournalChemical Engineering Journal
Volume312
Early online date29 Nov 2016
DOIs
StatePublished - 15 Mar 2017

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Sorbents
gas
adsorption
Adsorption
Gases
activated carbon
acid
Flue gases
Activated carbon
Acids
silica
combustion
carbon dioxide
energy
Polyetherimides
Carbon dioxide
Silica
Impurities

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Fernández-Miranda, N., Garcia, S., Antonia Lopez-Anton, M., Martinez-Tarazona, M. R., Sanz-Pérez, E. S., & Maroto-Valer, M. M. (2017). Effect of Hg on CO2 capture by solid sorbents in the presence of acid gases. Chemical Engineering Journal, 312, 367–374. DOI: 10.1016/j.cej.2016.11.158

Fernández-Miranda, N.; Garcia, Susana; Antonia Lopez-Anton, M.; Martinez-Tarazona, M. Rosa; Sanz-Pérez, Eloy S.; Maroto-Valer, M. Mercedes / Effect of Hg on CO2 capture by solid sorbents in the presence of acid gases.

In: Chemical Engineering Journal, Vol. 312, 15.03.2017, p. 367–374.

Research output: Contribution to journalArticle

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abstract = "Carbon dioxide Capture and Storage (CCS) is the main technology to mitigate CO2 emissions in the energy sector, being reversibly adsorption of CO2 on solid sorbents one of the most promising processes to be operated in post-combustion technology. Given the current state of development a number of problems still need to be addressed before solid sorbents can be employed for CO2 capture. One of these problems is the effect that some impurities in the flue gas have on the behavior of the sorbents. The aim of this work is to identify and evaluate the role of mercury species in flue gas containing acid gases on the performance of sorbents employed for CO2 capture. The influence of mercury on CO2 retention capacity was assessed using three commercial activated carbons (NORIT GCN, AIRPEL 1DS-1 and AIRPEL ULTRA DS5) and two mesostructured silica sorbents containing amino groups (SBA-PEI and SBA-TEPA). When Hg0 was incorporated into the gas stream, the behavior of the sorbents was modified. In general, the CO2 adsorption capacity decreased in the presence of Hg0 suggesting competition by both compounds for the same active sites. The strongest effect of Hg0 on CO2 adsorption was observed in the activated carbon with the highest micropore volume.",
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Fernández-Miranda, N, Garcia, S, Antonia Lopez-Anton, M, Martinez-Tarazona, MR, Sanz-Pérez, ES & Maroto-Valer, MM 2017, 'Effect of Hg on CO2 capture by solid sorbents in the presence of acid gases' Chemical Engineering Journal, vol 312, pp. 367–374. DOI: 10.1016/j.cej.2016.11.158

Effect of Hg on CO2 capture by solid sorbents in the presence of acid gases. / Fernández-Miranda, N.; Garcia, Susana; Antonia Lopez-Anton, M.; Martinez-Tarazona, M. Rosa; Sanz-Pérez, Eloy S.; Maroto-Valer, M. Mercedes.

In: Chemical Engineering Journal, Vol. 312, 15.03.2017, p. 367–374.

Research output: Contribution to journalArticle

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AU - Fernández-Miranda,N.

AU - Garcia,Susana

AU - Antonia Lopez-Anton,M.

AU - Martinez-Tarazona,M. Rosa

AU - Sanz-Pérez,Eloy S.

AU - Maroto-Valer,M. Mercedes

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N2 - Carbon dioxide Capture and Storage (CCS) is the main technology to mitigate CO2 emissions in the energy sector, being reversibly adsorption of CO2 on solid sorbents one of the most promising processes to be operated in post-combustion technology. Given the current state of development a number of problems still need to be addressed before solid sorbents can be employed for CO2 capture. One of these problems is the effect that some impurities in the flue gas have on the behavior of the sorbents. The aim of this work is to identify and evaluate the role of mercury species in flue gas containing acid gases on the performance of sorbents employed for CO2 capture. The influence of mercury on CO2 retention capacity was assessed using three commercial activated carbons (NORIT GCN, AIRPEL 1DS-1 and AIRPEL ULTRA DS5) and two mesostructured silica sorbents containing amino groups (SBA-PEI and SBA-TEPA). When Hg0 was incorporated into the gas stream, the behavior of the sorbents was modified. In general, the CO2 adsorption capacity decreased in the presence of Hg0 suggesting competition by both compounds for the same active sites. The strongest effect of Hg0 on CO2 adsorption was observed in the activated carbon with the highest micropore volume.

AB - Carbon dioxide Capture and Storage (CCS) is the main technology to mitigate CO2 emissions in the energy sector, being reversibly adsorption of CO2 on solid sorbents one of the most promising processes to be operated in post-combustion technology. Given the current state of development a number of problems still need to be addressed before solid sorbents can be employed for CO2 capture. One of these problems is the effect that some impurities in the flue gas have on the behavior of the sorbents. The aim of this work is to identify and evaluate the role of mercury species in flue gas containing acid gases on the performance of sorbents employed for CO2 capture. The influence of mercury on CO2 retention capacity was assessed using three commercial activated carbons (NORIT GCN, AIRPEL 1DS-1 and AIRPEL ULTRA DS5) and two mesostructured silica sorbents containing amino groups (SBA-PEI and SBA-TEPA). When Hg0 was incorporated into the gas stream, the behavior of the sorbents was modified. In general, the CO2 adsorption capacity decreased in the presence of Hg0 suggesting competition by both compounds for the same active sites. The strongest effect of Hg0 on CO2 adsorption was observed in the activated carbon with the highest micropore volume.

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Fernández-Miranda N, Garcia S, Antonia Lopez-Anton M, Martinez-Tarazona MR, Sanz-Pérez ES, Maroto-Valer MM. Effect of Hg on CO2 capture by solid sorbents in the presence of acid gases. Chemical Engineering Journal. 2017 Mar 15;312:367–374. Available from, DOI: 10.1016/j.cej.2016.11.158