Prospects in Waste Oil Shale Ash Sustainable Valorization
An innovative approach utilizing highly alkaline oil
shale waste ash and carbon dioxide gas (CO2), associated with power
production, as a resource for production of precipitated calcium
carbonate (PCC) is introduced in this paper. The specifics and
feasibility of the integrated ash valorization and CO2 sequestration
process by indirect aqueous carbonation of lime-consisting ash were
elaborated and the main parameters established. Detailed description
of the formed precipitates was included. Complimentary carbonation
experiments with commercial CaO fine powder were conducted for
comparative characterization of the final products obtained on the
basis of two different raw materials. Finally, the expected CO2
uptake was evaluated.
[1] Carbon Dioxide Information Analysis Center, Environmental Sciences
Division (US), "CO2 emissions - Estonia," March 2011,
http://data.worldbank.org/indicator/EN.ATM.CO2E.PC/countries/EE-
7E-XR
[2] L. Savitskaja, "Man-made changes of groundwater quality," in Geology
and Mineral Resources of Estonia, A. Raukas, A. Teedumäe, Eds.
Tallinn: Estonian Academy Publishers, 1997, pp. 152-156.
[3] M. Uibu, M. Uus, and R. Kuusik, "CO2 mineral sequestration in oilshale
wastes from Estonian power production," J. Environ. Manage.,
vol. 90, no. 2, pp. 1253-1260, 2009.
[4] R. Kuusik, M. Uus, M. Uibu, et al, "Method for neutralization of
alkaline waste water with carbon dioxide included in flue gas," Patent nr
EE05349B1
[5] O. Velts, M. Hautaniemi, J. Kallas, and R. Kuusik, "Modeling calcium
dissolution from oil shale ash: PART 1. Ca dissolution during ash
washing in a batch reactor," Fuel. Process. Tech., vol. 91, no. 5, pp.
486-490, 2010.
[6] O. Velts, M. Hautaniemi, J. Kallas, M. Kuosa, and R. Kuusik,
"Modeling calcium dissolution from oil shale ash: PART 2. Continuous
washing of the ash layer," Fuel. Process. Tech., vol. 91, no. 5, pp. 491-
495, 2010.
[7] O. Velts, M. Hautaniemi, M. Uibu, J. Kallas, and R. Kuusik, "Modelling
of CO2 mass transfer and hydrodynamics in a semi-batch reactor,"
Materials, Methods & Technologies, vol. 4, no. 2, pp. 68-79, 2010.
Available at: http://www.science-journals.eu/mmt/index.html
[8] Specialty Minerals Inc. (SMI), "What is PCC?" March 2011,
http://www.specialtyminerals.com/our-minerals/what-is-pcc/
[1] Carbon Dioxide Information Analysis Center, Environmental Sciences
Division (US), "CO2 emissions - Estonia," March 2011,
http://data.worldbank.org/indicator/EN.ATM.CO2E.PC/countries/EE-
7E-XR
[2] L. Savitskaja, "Man-made changes of groundwater quality," in Geology
and Mineral Resources of Estonia, A. Raukas, A. Teedumäe, Eds.
Tallinn: Estonian Academy Publishers, 1997, pp. 152-156.
[3] M. Uibu, M. Uus, and R. Kuusik, "CO2 mineral sequestration in oilshale
wastes from Estonian power production," J. Environ. Manage.,
vol. 90, no. 2, pp. 1253-1260, 2009.
[4] R. Kuusik, M. Uus, M. Uibu, et al, "Method for neutralization of
alkaline waste water with carbon dioxide included in flue gas," Patent nr
EE05349B1
[5] O. Velts, M. Hautaniemi, J. Kallas, and R. Kuusik, "Modeling calcium
dissolution from oil shale ash: PART 1. Ca dissolution during ash
washing in a batch reactor," Fuel. Process. Tech., vol. 91, no. 5, pp.
486-490, 2010.
[6] O. Velts, M. Hautaniemi, J. Kallas, M. Kuosa, and R. Kuusik,
"Modeling calcium dissolution from oil shale ash: PART 2. Continuous
washing of the ash layer," Fuel. Process. Tech., vol. 91, no. 5, pp. 491-
495, 2010.
[7] O. Velts, M. Hautaniemi, M. Uibu, J. Kallas, and R. Kuusik, "Modelling
of CO2 mass transfer and hydrodynamics in a semi-batch reactor,"
Materials, Methods & Technologies, vol. 4, no. 2, pp. 68-79, 2010.
Available at: http://www.science-journals.eu/mmt/index.html
[8] Specialty Minerals Inc. (SMI), "What is PCC?" March 2011,
http://www.specialtyminerals.com/our-minerals/what-is-pcc/
@article{"International Journal of Chemical, Materials and Biomolecular Sciences:51969", author = "Olga Velts and Mai Uibu and Juha Kallas and Rein Kuusik", title = "Prospects in Waste Oil Shale Ash Sustainable Valorization", abstract = "An innovative approach utilizing highly alkaline oil
shale waste ash and carbon dioxide gas (CO2), associated with power
production, as a resource for production of precipitated calcium
carbonate (PCC) is introduced in this paper. The specifics and
feasibility of the integrated ash valorization and CO2 sequestration
process by indirect aqueous carbonation of lime-consisting ash were
elaborated and the main parameters established. Detailed description
of the formed precipitates was included. Complimentary carbonation
experiments with commercial CaO fine powder were conducted for
comparative characterization of the final products obtained on the
basis of two different raw materials. Finally, the expected CO2
uptake was evaluated.", keywords = "Calcium Carbonate, Carbon Dioxide Sequestration,Oil Shale Ash, Waste Valorization.", volume = "5", number = "4", pages = "272-5", }