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Low-High Temperature Flue Gas Direct Injection in South African Bituminous and Anthracite Coals:Sorption Capacity Assessment


Affiliations
1 Department of Chemical Engineering, Vaal University of Technology, P.O. Box 3595, Secunda, 2302, South Africa
2 Department of Chemical, Metallurgical and Materials Engineering, Tshwane University of Technology, Private Bag X680, Pretoria, 0001, South Africa
3 School of Chemical and Metallurgical Engineering, Faculty of Engineering and the Built Environment, University of the Witwatersrand, Private Bag 3, Wits 2050, Johannesburg, South Africa
 

Numerous studies have been carried out recently on the sequestration of carbon dioxide (CO2), a greenhouse gas, produced due to human activities. Consequently, storage of CO2 in storage sites, such as unmineable coal seams, has been identified as one of the promising options with the advantage of recovering coal-bed methane (CH4). However, CO2 injected into coal seams contains additional gases that may reduce storage capacity, cause changes in sorption behaviour and physicochemical properties of coal. This research was aimed at investigating the sorption behaviour of three South African coals (sorbents) upon pure CO2 and flue gas (sorbates) sorption. Measurements were conducted on 10 g samples with a grain size <2 mm. A synthetic industrial flue gas containing 12% CO2, 5.5% O2, 82% N2, 0.38% SO2 and 0.12% NO2 was used in the study. Sorption isotherms were measured at a temperature ranging from 30 to 60°C and pressures up to 9 MPa using a high-pressure CO2 volumetric adsorption system (HPCVAS). Sorption of CO2 by coal was highly reduced in the presence of additional gases due to competition for sorption sites. The reduction in CO2 (in flue gas) sorption capacity of coal was up to 63% compared to sorption of pure CO2.

Keywords

Carbon Dioxide, Coal, Flue Gas, Preferential Sorption, Sorption Capacity.
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  • Chiari, L. and Zecca, A., Constraints of fossil fuels depletion on global warming projections. Energ. Policy, 2011, 39, 5026–5034.

  • Lacis, A. A., Schmidt, G. A., Rind, D. and Ruedy, R. A., Atmospheric CO2: principal control knob governing earth’s temperature. Science, 2010, 330, 356–359.

  • Mandlebaum, S. and Nriagu, J., Carbon sequestration and agriculture. In Encyclopedia of Environmental Health, Elsevier, Burlington, 2011, pp. 498–504.

  • Anderson, T. R., Hawkins, E. and Jones, P. D., CO2, the greenhouse effect and global warming: From the pioneering work of arrhenius and callendar to today’s earth system models. Endeavour, 2016, 40, 178–187.

  • van der Merwe, C., Energy and climate change–policy and progress, 2010, ZEROCO2.

  • Naidoo, B., South Africa pushes ahead with carbon dioxide storage atlas project, but scepticism persists. In Engineering News, 2009.

  • Mabuza, M. M. and Premlall, K., Sorption of industrial flues gases on south African coals for CO2 storage: experimental study on laboratory scal. In 3rd African Public Officials Energy and Environment Conference and Workshop, Tshwane University of Technology, Centurion, Pretoria, South Africa, 2015, pp. 15–21.

  • IPCC, Summary for policymakers. In Climate Change 2014: Mitigation Climate Change Contribution of Working Group III to the Fifth Assessment Report of the Intergovernmental panel on Climate Change (eds Edenhofer, O. et al.), Cambridge, UK and New York, USA.

  • de_Richter, R. K., Ming, T., Caillol, S. and Liu, W., Fighting global warming by ghg removal: destroying cfcs and hcfcs in solar-wind power plant hybrids producing renewable energy with no-intermittency. Int. J. Greenhouse Gas Control, 2016, 49, 449– 472.

  • Zhang, J., Xiao, P., Li, G. and Webley, P. A., Effect of flue gas impurities on CO2 capture performance from flue gas at coal-fired power stations by vacuum swing adsorption. Energy Proc., 2009, 1, 1115–1122.

  • Cloete, M., Atlas on Geological Storage of Carbon Dioxide in South Africa, Council for Geoscience, Silverton, Pretoria, South Africa, 2010, pp. 1–59.

  • Viljoen, J., H, A, Stapelberg, F., D, J and Cloete, M., Technical Report on the Geological Storage of Carbon Dioxide in South Africa (eds Downes, G. et al.), Council for Geoscience, Silverton: Pretoria, 2010.

  • Ranathunga, A. S., Perera, M. S. A. and Ranjith, P. G., Influence of CO2 adsorption on the strength and elastic modulus of low rank Australian coal under confining pressure. Int. J. Coal Geol., 2016, 167, 148–156.

  • Arif, M., Barifcani, A., Lebedev, M. and Iglauer, S., CO2wettability of low to high rank coal seams: implications for carbon sequestration and enhanced methane recovery. Fuel, 2016, 181, 680–689.

  • Mabuza, M. and Premlall, K., Assessing impure CO2 adsorption capacity on selected south African coals: Comparative study using low and high concentrated simulated flue gases. Energ. Proc., 2014, 51, 308–315.

  • Zhang, Q.-L., Adsorption mechanism of different coal ranks under variable temperature and pressure conditions. J. China Univ. Min. Technol., 2008, 18, 395–400.

  • Ozdemir, E., Chemistry of the adsorption of carbon dioxide by argonne premium coals and a model to simulate CO2 sequestration in coal seams. In School of Engineering, University of Pittsburgh, Pittsburgh, 2004.

  • Goodman, A. L. et al., An inter-laboratory comparison of CO2 isotherms measured on argonne premium coal samples. Energy Fuels, 2004, 18, 1175–1182.

  • Sudibandriyo, M., A simple technique for surface area determintation through supercritical CO2 adsorption. Makara Seri Teknologi, 2010, 14, 1–6.

  • Luo, X., Wang, S., Wang, Z., Jing, Z., Lv, M., Zhai, Z. and Han, T., Adsorption of methane, carbon dioxide and their binary mixtures on Jurassic shale from the qaidam basin in china. Int. J. Coal Geol., 2015, 150–151, 210–223.

  • Beamish, B., Laxminarayana, C. and Crosdale, P. J., Contrasts in methane sorption properties between New Zealand and Australian coals. In Coal Operations' Conference, University of Wollongong and the Australian Institute of Mining and Metallurgy, University of Wollongong, 1998, pp. 561–565.

  • Clarkson, C. R. and Bustin, M. R., Variation in micropore capacity and size distribution with composition in bituminous coal of the western Canadian sedimentary basin. Fuel, 1996, 75, 1483– 1498.

  • Maphala, T., Effects of carbon dioxide storage in coal on the physical and chemical properties of coal. In School of Chemical and Metallurgical Engineering, University of the Witwatersrand, Johannesburg, South Africa, 2012, p. 240.

  • Flores, R. M, Coal and Coalbed Gas: Fuelling the Future, Elsevier lnc, Waltham, Massachusetts, USA, 2014.

  • Adeboye, O. O., Effects of coal composition and fabric on porosity, sorption capacity and gas flow properties in western Canada sedimentary basin coals. In Faculty of Graduate Studies, The University of British Columbia, Vancouver, British Columbia, Canada, 2011, p. 180.

  • Harris, L. A. and Yust, C. S., Transmission electron microscope observations of porosity in coal. Fuel, 1976, 55, 233–236.

  • Crosdale, P. J., Beamish, B. B. and Valix, M., Coalbed methane sorption related to coal composition. Int. J. Coal Geol., 1998, 35, 147–158.

  • Busch, A., Gensterblum, Y. and Krooss, B. M., Methane and CO2 sorption and desorption measurements on dry Argonne premium coals: pure components and mixtures. Int. J. Coal Geol., 2003, 55, 205–224.

  • Bhebhe, S., The effect of coal composition on carbon dioxide adsorption. In School of Chemical and Metallurgical Engineering, Witwatersrand, Johannesburg, South Africa, 2008.

  • Mastalerz, M., Gluskoter, H. and Rupp, J., Carbon dioxide and methane sorption in high volatile bituminous coals from Indiana, USA. Int. J. Coal Geol., 2004, 60, 43–55.

  • Clarkson, C. R. and Bustin, R. M., Binary gas adsorption/ desorption isotherms: effect of moisture and coal composition upon carbon dioxide selectivity over methane. Int. J. Coal Geol., 2000, 42, 241–271.

  • Stanton, R., Flores, R., Warwick, P. D. and Stricker, G. D, Coal bed sequestration of carbon dioxide. In DOE's First National Conference on Carbon Sequestration, 2001, Washington, DC, USA.

  • Yu, H., Zhou, L., Guo, W., Cheng, J. and Hu, Q., Predictions of the adsorption equilibrium of methane/carbon dioxide binary gas on coals using langmuir and ideal adsorbed solution theory under feed gas conditions. Int. J. Coal Geol., 2008, 73, 115–129.

  • Krooss, B. M., van Bergen, F., Gensterblum, Y., Siemons, N., Pagnier, H. J. M. and David, P., High-pressure methane and carbon dioxide adsorption on dry and moisture-equilibrated pennsylvanian coals. Int. J. Coal Geol., 2002, 51, 69–92.

  • Bénard, P. and Chahine, R., Modeling of high-pressure adsorption isotherms above the critical temperature on microporousadsorbents: application to methane. Langmuir, 1997, 13, 808–813.

  • Bustin, R. M. and Clarkson, C. R., Geological controls on coalbed methane reservoir capacity and gas content. Int. J. Coal Geol., 1998, 38, 3–26.

  • Levy, J. H., Day, S. J. and Killingley, J. S., Methane capacities of bowen basin coals related to coal properties. Fuel, 1997, 76, 813– 819.

  • Crosdale, P. J., Mixed methane/carbon dioxide sorption by coal: new evidence in support of pore-filling models. In International Coalbed Methane Symposium, Tuscaloosa, Alabama, USA.

  • Chen, C., Rao, A. B. and Rubin, E. S., Comparative assessment of CO2 capture options for existing coal-fired power plants. In Second National Conference on Carbon Sequestration, Alexandria, Virginia, USA, 1999.

  • Farla, J. C. M., Hendriks, C. A. and Blok, K., Carbon dioxide recovery from industrial processes. Clim. Change, 1995, 29, 439– 461.

  • Rao, A. B. and Rubin, E. S., A technical, economic, and environmental assessment of amine-based CO2 capture technology for power plant greenhouse gas control. Environ. Sci. Technol., 2002, 36, 4467–4475.

  • Singh, D., Croiset, E., Douglas, P. L. and Douglas, M. A., Technoeconomic study of co2 capture from an existing coal-fired power plant: mea scrubbing vs O2/CO2 recycle combustion. Energ. Conver. Manage., 2003, 44, 3073–3091.

  • Rubin, E. S., Davison, J. E. and Herzog, H. J., The cost of CO2 capture and storage. Int. J. Greenhouse Gas Cont., 2015, 40, 378– 400.

  • Al-Juaied, M. A. and Whitmore, A., Realistic Costs of Carbon Capture, Belfer Center for Science and International Affairs, 2009, pp. 49–50.

  • Leung, D. Y. C., Caramanna, G. and Maroto-Valer, M. M., An overview of current status of carbon dioxide capture and storage technologies. Renew. Sust. Energ. Rev., 2014, 39, 426–443.


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  • Low-High Temperature Flue Gas Direct Injection in South African Bituminous and Anthracite Coals:Sorption Capacity Assessment

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Authors

Major Mabuza
Department of Chemical Engineering, Vaal University of Technology, P.O. Box 3595, Secunda, 2302, South Africa
Kasturie Premlall
Department of Chemical, Metallurgical and Materials Engineering, Tshwane University of Technology, Private Bag X680, Pretoria, 0001, South Africa
Maurice Onyango
Department of Chemical, Metallurgical and Materials Engineering, Tshwane University of Technology, Private Bag X680, Pretoria, 0001, South Africa
Michael O. Daramola
School of Chemical and Metallurgical Engineering, Faculty of Engineering and the Built Environment, University of the Witwatersrand, Private Bag 3, Wits 2050, Johannesburg, South Africa

Abstract


Numerous studies have been carried out recently on the sequestration of carbon dioxide (CO2), a greenhouse gas, produced due to human activities. Consequently, storage of CO2 in storage sites, such as unmineable coal seams, has been identified as one of the promising options with the advantage of recovering coal-bed methane (CH4). However, CO2 injected into coal seams contains additional gases that may reduce storage capacity, cause changes in sorption behaviour and physicochemical properties of coal. This research was aimed at investigating the sorption behaviour of three South African coals (sorbents) upon pure CO2 and flue gas (sorbates) sorption. Measurements were conducted on 10 g samples with a grain size <2 mm. A synthetic industrial flue gas containing 12% CO2, 5.5% O2, 82% N2, 0.38% SO2 and 0.12% NO2 was used in the study. Sorption isotherms were measured at a temperature ranging from 30 to 60°C and pressures up to 9 MPa using a high-pressure CO2 volumetric adsorption system (HPCVAS). Sorption of CO2 by coal was highly reduced in the presence of additional gases due to competition for sorption sites. The reduction in CO2 (in flue gas) sorption capacity of coal was up to 63% compared to sorption of pure CO2.

Keywords


Carbon Dioxide, Coal, Flue Gas, Preferential Sorption, Sorption Capacity.

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DOI: https://doi.org/10.18520/cs%2Fv115%2Fi4%2F682-691