Sorbent steam reactivation and methane-concentrated calcination for calcium-looping carbon capture: Compatibilities and limitations

Arian Ebneyamini; Jun Young Kim; Zezhong John Li; John R. Grace; C. Jim Lim; Naoko Ellis

doi:10.1016/j.jiec.2020.03.012

Sorbent steam reactivation and methane-concentrated calcination for calcium-looping carbon capture: Compatibilities and limitations

Arian Ebneyamini, Jun Young Kim, Zezhong John Li, John R. Grace, C. Jim Lim, Naoko Ellis

University of British Columbia

Research output: Contribution to journal › Article › peer-review

8 Scopus citations

Abstract

This paper investigates the equilibrium performance of CaO hydration and CaCO₃/Ca(OH)₂ co-calcination in calcium-looping processes. A novel lime hydration configuration is proposed, introducing saturated steam as the reactivating reagent and direct-heat-removal medium. The proposed hydrator generates a substantial amount of superheated steam, used elsewhere as required. The slaked lime and limestone are calcined simultaneously in a methane-concentrated oxy-fuel calciner. The equilibrium performance of the co-calciner is studied at different reactor temperatures, operating pressures, solid/gas feed ratios and feed compositions. A correlation is proposed which estimates the required gaseous feed composition for autothermal, coke-free and complete sorbent regeneration using this novel technology.

Original language	English
Pages (from-to)	40-45
Number of pages	6
Journal	Journal of Industrial and Engineering Chemistry
Volume	87
DOIs	https://doi.org/10.1016/j.jiec.2020.03.012
State	Published - 25 Jul 2020

Bibliographical note

Publisher Copyright:
© 2020 The Korean Society of Industrial and Engineering Chemistry

Keywords

Calcium-looping
Carbon capture
Co-calcination
Sorbent reactivation
Steam superheating
Syngas-producing

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10.1016/j.jiec.2020.03.012

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title = "Sorbent steam reactivation and methane-concentrated calcination for calcium-looping carbon capture: Compatibilities and limitations",

abstract = "This paper investigates the equilibrium performance of CaO hydration and CaCO3/Ca(OH)2 co-calcination in calcium-looping processes. A novel lime hydration configuration is proposed, introducing saturated steam as the reactivating reagent and direct-heat-removal medium. The proposed hydrator generates a substantial amount of superheated steam, used elsewhere as required. The slaked lime and limestone are calcined simultaneously in a methane-concentrated oxy-fuel calciner. The equilibrium performance of the co-calciner is studied at different reactor temperatures, operating pressures, solid/gas feed ratios and feed compositions. A correlation is proposed which estimates the required gaseous feed composition for autothermal, coke-free and complete sorbent regeneration using this novel technology.",

keywords = "Calcium-looping, Carbon capture, Co-calcination, Sorbent reactivation, Steam superheating, Syngas-producing",

author = "Arian Ebneyamini and Kim, {Jun Young} and Li, {Zezhong John} and Grace, {John R.} and Lim, {C. Jim} and Naoko Ellis",

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doi = "10.1016/j.jiec.2020.03.012",

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AU - Ebneyamini, Arian

AU - Kim, Jun Young

AU - Li, Zezhong John

AU - Grace, John R.

AU - Lim, C. Jim

AU - Ellis, Naoko

PY - 2020/7/25

Y1 - 2020/7/25

N2 - This paper investigates the equilibrium performance of CaO hydration and CaCO3/Ca(OH)2 co-calcination in calcium-looping processes. A novel lime hydration configuration is proposed, introducing saturated steam as the reactivating reagent and direct-heat-removal medium. The proposed hydrator generates a substantial amount of superheated steam, used elsewhere as required. The slaked lime and limestone are calcined simultaneously in a methane-concentrated oxy-fuel calciner. The equilibrium performance of the co-calciner is studied at different reactor temperatures, operating pressures, solid/gas feed ratios and feed compositions. A correlation is proposed which estimates the required gaseous feed composition for autothermal, coke-free and complete sorbent regeneration using this novel technology.

AB - This paper investigates the equilibrium performance of CaO hydration and CaCO3/Ca(OH)2 co-calcination in calcium-looping processes. A novel lime hydration configuration is proposed, introducing saturated steam as the reactivating reagent and direct-heat-removal medium. The proposed hydrator generates a substantial amount of superheated steam, used elsewhere as required. The slaked lime and limestone are calcined simultaneously in a methane-concentrated oxy-fuel calciner. The equilibrium performance of the co-calciner is studied at different reactor temperatures, operating pressures, solid/gas feed ratios and feed compositions. A correlation is proposed which estimates the required gaseous feed composition for autothermal, coke-free and complete sorbent regeneration using this novel technology.

KW - Calcium-looping

KW - Carbon capture

KW - Co-calcination

KW - Sorbent reactivation

KW - Steam superheating

KW - Syngas-producing

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DO - 10.1016/j.jiec.2020.03.012

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SN - 1226-086X

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JO - Journal of Industrial and Engineering Chemistry

JF - Journal of Industrial and Engineering Chemistry

ER -

Sorbent steam reactivation and methane-concentrated calcination for calcium-looping carbon capture: Compatibilities and limitations

Abstract

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Keywords

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