skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Fine Calcium Carbonate Production by CO2 Mineralization of Industrial Waste Brines

Abstract

Calcium carbonate production via CO2 mineralization offers an attractive route for carbon capture and utilization. The process sequesters CO2 in a stable form of fine precipitated calcium carbonate, a high-value product with unit price in the range of $230-$280/t and a global market projected to reach 99 M tons in 2020. However, two critical barriers hinders CO2 mineralization—(i) the need for costly processes such as electrolysis or addition of alkali hydroxides to maintain alkalinity during mineralization, and (ii) the geographic location mismatch between Ca-rich solutions (or brines) CO2 generation sources (e.g. power plants) which often renders efficient integration of feedstocks impractical. To simultaneously address these challenges, a new process is developed to integrate CO2 mineralization-based carbonate production into the zero liquid discharge water (ZLD) treatment systems at coal-fired power plants. In this process, Ca-rich streams, such as produced water from oil and gas extraction or carbon storage operations, serves as the Ca-source. An H+/Na+ ion-exchange cycle is designed to provision alkalinity during mineralization and regenerate the ion-exchange reagent in solutions with high salinity. Ca-depleted streams are then treated within a centralized ZLD system. The process beneficially utilizes reject streams that are available at substantial quantities in the vicinity of coalmore » power plants within several U.S regions. In addition, the process utilizes post-desulfurization flue gas from coal-fired power plants as is. The CO2 conversion reactions are performed in alkaline streams at ambient pressure, thereby minimizing the energy burden. By beneficiation of industrial waste streams with low energy input, this process offers significant technical advantages in energy and CO2 footprint over the current paradigm of precipitated calcium carbonate production. Overall, the new process provides a unique route to integrate CO2 emissions control and wastewater treatment for coal power plants, while producing high-value product to offset the economic burden associated with waste management.« less

Authors:
; ; ; ; ;
Publication Date:
Research Org.:
University of Wisconsin-Madison
Sponsoring Org.:
USDOE Office of Fossil Energy (FE)
OSTI Identifier:
1544766
DOE Contract Number:  
FE0031705
Resource Type:
Conference
Resource Relation:
Conference: 2019 Carbon Management Technology Conference, Houston, TX, July 15-18, 2019
Country of Publication:
United States
Language:
English

Citation Formats

Simonetti, Dante, La Plante, Erika Callagon, Sant, Gaurav, Wang, Bu, Alturki, Abdulaziz, and Bustillos, Steven. Fine Calcium Carbonate Production by CO2 Mineralization of Industrial Waste Brines. United States: N. p., 2019. Web.
Simonetti, Dante, La Plante, Erika Callagon, Sant, Gaurav, Wang, Bu, Alturki, Abdulaziz, & Bustillos, Steven. Fine Calcium Carbonate Production by CO2 Mineralization of Industrial Waste Brines. United States.
Simonetti, Dante, La Plante, Erika Callagon, Sant, Gaurav, Wang, Bu, Alturki, Abdulaziz, and Bustillos, Steven. Thu . "Fine Calcium Carbonate Production by CO2 Mineralization of Industrial Waste Brines". United States. https://www.osti.gov/servlets/purl/1544766.
@article{osti_1544766,
title = {Fine Calcium Carbonate Production by CO2 Mineralization of Industrial Waste Brines},
author = {Simonetti, Dante and La Plante, Erika Callagon and Sant, Gaurav and Wang, Bu and Alturki, Abdulaziz and Bustillos, Steven},
abstractNote = {Calcium carbonate production via CO2 mineralization offers an attractive route for carbon capture and utilization. The process sequesters CO2 in a stable form of fine precipitated calcium carbonate, a high-value product with unit price in the range of $230-$280/t and a global market projected to reach 99 M tons in 2020. However, two critical barriers hinders CO2 mineralization—(i) the need for costly processes such as electrolysis or addition of alkali hydroxides to maintain alkalinity during mineralization, and (ii) the geographic location mismatch between Ca-rich solutions (or brines) CO2 generation sources (e.g. power plants) which often renders efficient integration of feedstocks impractical. To simultaneously address these challenges, a new process is developed to integrate CO2 mineralization-based carbonate production into the zero liquid discharge water (ZLD) treatment systems at coal-fired power plants. In this process, Ca-rich streams, such as produced water from oil and gas extraction or carbon storage operations, serves as the Ca-source. An H+/Na+ ion-exchange cycle is designed to provision alkalinity during mineralization and regenerate the ion-exchange reagent in solutions with high salinity. Ca-depleted streams are then treated within a centralized ZLD system. The process beneficially utilizes reject streams that are available at substantial quantities in the vicinity of coal power plants within several U.S regions. In addition, the process utilizes post-desulfurization flue gas from coal-fired power plants as is. The CO2 conversion reactions are performed in alkaline streams at ambient pressure, thereby minimizing the energy burden. By beneficiation of industrial waste streams with low energy input, this process offers significant technical advantages in energy and CO2 footprint over the current paradigm of precipitated calcium carbonate production. Overall, the new process provides a unique route to integrate CO2 emissions control and wastewater treatment for coal power plants, while producing high-value product to offset the economic burden associated with waste management.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2019},
month = {7}
}

Conference:
Other availability
Please see Document Availability for additional information on obtaining the full-text document. Library patrons may search WorldCat to identify libraries that hold this conference proceeding.

Save / Share: