429738 Tetraethylenepentamine Supported with Kaolin for CO2 Capture

Wednesday, November 11, 2015: 9:10 AM
255E (Salt Palace Convention Center)
Maryam Irani, Chemical Engineering, University of Wyoming, Laramie, WY and Maohong Fan, Department of Chemical and Petroleum Engineering, University of Wyoming, Laramie, WY

The increase in greenhouse gas emission due to the consumption of vast amounts of fossil-based energy resources is most likely associated with climate changes.  Among the major greenhouse gases is CO2, which is responsible for approximately 64% of the greenhouse effects observed to date. Therefore, it is essential to improve current CO2 capture technologies for cost-effective COcapture. In this work, a CO2 adsorbent was prepared by immobilizing tetraethylenepentamine (TEPA) onto kaolin, an inexpensive and widely available clay. The prepared sorbents were characterized using X-ray diffraction (XRD), scanning electron microscopy (SEM), and Fourier transform infrared spectroscopy (FTIR). At the optimal TEPA loading (30 wt%) on the kaolin, the CO2 sorption capacity of the sorbent reached 2.13 mmol CO2/g-sorbent at 70°C with the presence of  moisture  (ca.10 vol %). The regeneration of the adsorbent can be achieved using nitrogen at 100 °C. This work shows that this polymer composite has the potential to be applied as a solid sorbent for CO2 capture.

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See more of this Session: Carbon Dioxide Capture Technologies and Its Use
See more of this Group/Topical: Environmental Division