Surfactant Assisted Synthesis of Homogeneous Calcium Based CO2 Sorbent at Room Temperature
DOI:
https://doi.org/10.6000/1929-5030.2014.03.03.6Keywords:
Calcium oxide, carbon capture, high temperature reaction, next generation CO2 sorbent, thermal stability.Abstract
Calcium oxide (CaO) sorbents have been recently used for removal of CO2 gases in fossil fuel-fired power plant. However, there are some limitations of CaO in CO2 capturing such as rapid loss of activity during the capture cycles, which is a result of sintering, attrition, and consequent elutriation. Therefore, this paper has demonstrated a novel synthesis method to produce CaO at room temperature to avoid abovementioned drawbacks. In addition, introduction of ionic surfactant of sodium dodecyl sulfate to the CaO formation solution has shown a positive result of formation of homogeneous spherical particle with a mean Z-average diameter of 345.2 nm and polydispersion index (PDI) of 0.335 by dynamical light scattering measurement. Subjected to a high calcination temperature of 1200oC, developed CaO is able to maintain a CO2 uptake capacity of 0.1025 gCO2/gsorbent under 30 minutes of carbonation time. Despite its lower CO2 uptake capacity compared to maximum theoretical limit of 0.78 gCO2/gsorbent, CaO particles is able to withstand a high calcination temperature of 1200oC and reported a particle size distribution ranged from 0.4 - 1.2 µm after calcination which is just slightly larger than fresh developed CaO. Given that such small narrow distributed size of CaO, developed CaO at room temperature is good for packed-bed reactor in calcium looping processes and more studies are required to find a suitable support for fluidized bed reactor type. This successful synthesis story of CaO particle at room temperature has unraveled the possibility to develop nanosized CaO at room temperature in order to achieve high CO2 uptake capacity while enjoying its superior thermal stability over multiple carbonation/calcination cycles.
References
[1] Solomon S, Qin D, Manning M, Chen Z, Marquis M, Averyt KB, Tignor M, Miller HL, Eds. Climate Change 2007: The Physical Science Basis. Contribution of Working Group I to the Fourth Assessment Report of the Intergovernmental Panel on Climate Change. Cambridge University Press. United Kingdom: Cambridge 2007.
[2] Figueroa JD, Fout T, Plasynski S, McIlvried H, Srivastava RD. Advances in CO2 capture technology – The U.S. Department of Energy’s Carbon Sequestration Program. International Journal of Greenhouse Gas Control 2008; 2(1): 9-20. http://dx.doi.org/10.1016/S1750-5836(07)00094-1
[3] Rao AB, Rubin ES. A technical, economic, and environmental assessment of amine-based CO2 capture technology for power plant greenhouse gas control. Environmental Science and Technology 2002; 36(20): 4467- 4475. http://dx.doi.org/10.1021/es0158861
[4] Lepaumier H, Picq D, Carrette P. New amines for CO2 capture. I. mechanisms of amine degradation in the presence of CO2. Industrial and Engineering Chemistry Research 2009; 48(20): 9061-9067. http://dx.doi.org/10.1021/ie900472x
[5] Shimizu T, Hirama T, Hosoda H, Kitano K, Inagaki M, Tejima K. A twin fluid-bed reactor for removal of CO2 from combustion processes. Chemical Engineering Research and Design 1999; 77(1): 62-68. http://dx.doi.org/10.1205/026387699525882
[6] Manovic V, Anthony EJ. Lime-based sorbents for hightemperature CO2 capture-a review of sorbent modification methods. International Journal of Environmental Research and Public Health 2010; 7(8): 3129-3140. http://dx.doi.org/10.3390/ijerph7083129
[7] Israelachvii JN, Mitchell DJ, Ninham BW. Theory of selfassembly of hydrocarbon amphiphiles into micelles and bilayers. Journal of the Chemical Society, Faraday Transactions 2: Molecular and Chemical Physics 1976; 72: 1525-1568. http://dx.doi.org/10.1039/f29767201525
Downloads
Published
How to Cite
Issue
Section
License
Policy for Journals/Articles with Open Access
Authors who publish with this journal agree to the following terms:
- Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.
- Authors are permitted and encouraged to post links to their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work
Policy for Journals / Manuscript with Paid Access
Authors who publish with this journal agree to the following terms:
- Publisher retain copyright .
- Authors are permitted and encouraged to post links to their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work .
