Spray water reactivation/pelletization of spent CaO-based sorbent from calcium looping cycles

Vasilije Manovic; Yinghai Wu; Ian He; Edward J. Anthony

doi:10.1021/es303252j

Spray water reactivation/pelletization of spent CaO-based sorbent from calcium looping cycles

Vasilije Manovic
, Yinghai Wu
, Ian He
, Edward J. Anthony^*

^*Corresponding author for this work

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

94 Scopus citations

Abstract

This paper presents a novel method for reactivation of spent CaO-based sorbents from calcium looping (CaL) cycles for CO₂ capture. A spent Cadomin limestone-derived sorbent sample from a pilot-scale fluidized bed (FBC) CaL reactor is used for reactivation. The calcined sorbent is sprayed by water in a pelletization vessel. This reactivation method produces pellets ready to be used in FBC reactors. Moreover, this procedure enables the addition of calcium aluminate cement to further enhance sorbent strength. The characterization of reactivated material by nitrogen physisorption (BET, BJH) and scanning electron microscopy (SEM) confirmed the enhanced morphology of sorbent particles for reaction with CO₂. This improved CO₂ carrying capacity was demonstrated in calcination/carbonation tests performed in a thermogravimetric analyzer (TGA). Finally, the resulting pellets displayed a high resistance to attrition during fluidization in a bubbling bed.

Original language	English
Pages (from-to)	12720-12725
Number of pages	6
Journal	Environmental Science and Technology
Volume	46
Issue number	22
DOIs	https://doi.org/10.1021/es303252j
State	Published - 20 Nov 2012
Externally published	Yes

ASJC Scopus subject areas

General Chemistry
Environmental Chemistry

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This output contributes to the following UN Sustainable Development Goals (SDGs)

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Cite this

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title = "Spray water reactivation/pelletization of spent CaO-based sorbent from calcium looping cycles",

abstract = "This paper presents a novel method for reactivation of spent CaO-based sorbents from calcium looping (CaL) cycles for CO2 capture. A spent Cadomin limestone-derived sorbent sample from a pilot-scale fluidized bed (FBC) CaL reactor is used for reactivation. The calcined sorbent is sprayed by water in a pelletization vessel. This reactivation method produces pellets ready to be used in FBC reactors. Moreover, this procedure enables the addition of calcium aluminate cement to further enhance sorbent strength. The characterization of reactivated material by nitrogen physisorption (BET, BJH) and scanning electron microscopy (SEM) confirmed the enhanced morphology of sorbent particles for reaction with CO2. This improved CO2 carrying capacity was demonstrated in calcination/carbonation tests performed in a thermogravimetric analyzer (TGA). Finally, the resulting pellets displayed a high resistance to attrition during fluidization in a bubbling bed.",

author = "Vasilije Manovic and Yinghai Wu and Ian He and Anthony, \{Edward J.\}",

year = "2012",

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doi = "10.1021/es303252j",

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volume = "46",

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TY - JOUR

T1 - Spray water reactivation/pelletization of spent CaO-based sorbent from calcium looping cycles

AU - Manovic, Vasilije

AU - Wu, Yinghai

AU - He, Ian

AU - Anthony, Edward J.

PY - 2012/11/20

Y1 - 2012/11/20

N2 - This paper presents a novel method for reactivation of spent CaO-based sorbents from calcium looping (CaL) cycles for CO2 capture. A spent Cadomin limestone-derived sorbent sample from a pilot-scale fluidized bed (FBC) CaL reactor is used for reactivation. The calcined sorbent is sprayed by water in a pelletization vessel. This reactivation method produces pellets ready to be used in FBC reactors. Moreover, this procedure enables the addition of calcium aluminate cement to further enhance sorbent strength. The characterization of reactivated material by nitrogen physisorption (BET, BJH) and scanning electron microscopy (SEM) confirmed the enhanced morphology of sorbent particles for reaction with CO2. This improved CO2 carrying capacity was demonstrated in calcination/carbonation tests performed in a thermogravimetric analyzer (TGA). Finally, the resulting pellets displayed a high resistance to attrition during fluidization in a bubbling bed.

AB - This paper presents a novel method for reactivation of spent CaO-based sorbents from calcium looping (CaL) cycles for CO2 capture. A spent Cadomin limestone-derived sorbent sample from a pilot-scale fluidized bed (FBC) CaL reactor is used for reactivation. The calcined sorbent is sprayed by water in a pelletization vessel. This reactivation method produces pellets ready to be used in FBC reactors. Moreover, this procedure enables the addition of calcium aluminate cement to further enhance sorbent strength. The characterization of reactivated material by nitrogen physisorption (BET, BJH) and scanning electron microscopy (SEM) confirmed the enhanced morphology of sorbent particles for reaction with CO2. This improved CO2 carrying capacity was demonstrated in calcination/carbonation tests performed in a thermogravimetric analyzer (TGA). Finally, the resulting pellets displayed a high resistance to attrition during fluidization in a bubbling bed.

UR - https://www.scopus.com/pages/publications/84869419747

U2 - 10.1021/es303252j

DO - 10.1021/es303252j

M3 - Article

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AN - SCOPUS:84869419747

SN - 0013-936X

VL - 46

SP - 12720

EP - 12725

JO - Environmental Science and Technology

JF - Environmental Science and Technology

IS - 22

ER -

Spray water reactivation/pelletization of spent CaO-based sorbent from calcium looping cycles

Abstract

ASJC Scopus subject areas

UN SDGs

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