Minimization of energy consumption of CO2 mineralization using recyclable ammonium salts

Aimaro Sanna; J. Gaubert; M. M. Maroto-Valer

Minimization of energy consumption of CO₂mineralization using recyclable ammonium salts

Aimaro Sanna^*
, J. Gaubert
, M. M. Maroto-Valer

^*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

Mineral carbonation by aqueous pH swing using recyclable ammonium salts is a promising process to permanently sequester CO₂ into stable carbonates. The ammonium salts are separated from the water solution and thermally regenerated at 300°C. Ammonium salts - water separation by thermal evaporation represents an energy intensive step, which limits the deployment of this technology. To overcome this challenge, the feasibility of using liquid-liquid extraction as an alternative salts/water separation process was evaluated here. The associated energy consumption was calculated, resulting in an energy saving between 26% and to 43% in comparison to water evaporation step depending on the conditions employed, and further research is required to optimise this process.

Original language	English
Title of host publication	5th International Conference on Accelerated Carbonation for Environmental and Material Engineering 2015
Publisher	AIChE
Pages	443-446
Number of pages	4
ISBN (Electronic)	9781510815490
Publication status	Published - 2015
Event	5th International Conference on Accelerated Carbonation for Environmental and Material Engineering 2015 - New York, United States Duration: 21 Jun 2015 → 24 Jun 2015

Conference

Conference	5th International Conference on Accelerated Carbonation for Environmental and Material Engineering 2015
Abbreviated title	ACEME 2015
Country/Territory	United States
City	New York
Period	21/06/15 → 24/06/15

UN SDGs

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

SDG 7 Affordable and Clean Energy

ASJC Scopus subject areas

Mechanical Engineering
Mechanics of Materials
General Materials Science

Cite this

@inproceedings{cde99c77255d4651a84da2ed93ac662c,

title = "Minimization of energy consumption of CO2 mineralization using recyclable ammonium salts",

abstract = "Mineral carbonation by aqueous pH swing using recyclable ammonium salts is a promising process to permanently sequester CO2 into stable carbonates. The ammonium salts are separated from the water solution and thermally regenerated at 300°C. Ammonium salts - water separation by thermal evaporation represents an energy intensive step, which limits the deployment of this technology. To overcome this challenge, the feasibility of using liquid-liquid extraction as an alternative salts/water separation process was evaluated here. The associated energy consumption was calculated, resulting in an energy saving between 26\% and to 43\% in comparison to water evaporation step depending on the conditions employed, and further research is required to optimise this process.",

author = "Aimaro Sanna and J. Gaubert and Maroto-Valer, \{M. M.\}",

year = "2015",

language = "English",

pages = "443--446",

booktitle = "5th International Conference on Accelerated Carbonation for Environmental and Material Engineering 2015",

publisher = "AIChE",

note = "5th International Conference on Accelerated Carbonation for Environmental and Material Engineering 2015, ACEME 2015 ; Conference date: 21-06-2015 Through 24-06-2015",

}

Sanna, A, Gaubert, J & Maroto-Valer, MM 2015, Minimization of energy consumption of CO₂mineralization using recyclable ammonium salts. in 5th International Conference on Accelerated Carbonation for Environmental and Material Engineering 2015. AIChE, pp. 443-446, 5th International Conference on Accelerated Carbonation for Environmental and Material Engineering 2015, New York, United States, 21/06/15.

TY - GEN

T1 - Minimization of energy consumption of CO2 mineralization using recyclable ammonium salts

AU - Sanna, Aimaro

AU - Gaubert, J.

AU - Maroto-Valer, M. M.

PY - 2015

Y1 - 2015

N2 - Mineral carbonation by aqueous pH swing using recyclable ammonium salts is a promising process to permanently sequester CO2 into stable carbonates. The ammonium salts are separated from the water solution and thermally regenerated at 300°C. Ammonium salts - water separation by thermal evaporation represents an energy intensive step, which limits the deployment of this technology. To overcome this challenge, the feasibility of using liquid-liquid extraction as an alternative salts/water separation process was evaluated here. The associated energy consumption was calculated, resulting in an energy saving between 26% and to 43% in comparison to water evaporation step depending on the conditions employed, and further research is required to optimise this process.

AB - Mineral carbonation by aqueous pH swing using recyclable ammonium salts is a promising process to permanently sequester CO2 into stable carbonates. The ammonium salts are separated from the water solution and thermally regenerated at 300°C. Ammonium salts - water separation by thermal evaporation represents an energy intensive step, which limits the deployment of this technology. To overcome this challenge, the feasibility of using liquid-liquid extraction as an alternative salts/water separation process was evaluated here. The associated energy consumption was calculated, resulting in an energy saving between 26% and to 43% in comparison to water evaporation step depending on the conditions employed, and further research is required to optimise this process.

UR - https://www.scopus.com/pages/publications/84964910970

M3 - Conference contribution

SP - 443

EP - 446

BT - 5th International Conference on Accelerated Carbonation for Environmental and Material Engineering 2015

PB - AIChE

T2 - 5th International Conference on Accelerated Carbonation for Environmental and Material Engineering 2015

Y2 - 21 June 2015 through 24 June 2015

ER -