| Institution: | 1. Department of Chemistry, Faculty of Science, King Khalid University, Abha, Saudi Arabia;2. Center for Energy Resources Engineering, Department of Chemical and Biochemical Engineering, Technical University of Denmark, 2800 Lyngby, Denmark
Department of Chemical Engineering, NFC Institute of Engineering and Fertilizer Research, Faisalabad, Pakistan;3. Department of Chemical Engineering, University of Gujrat, Punjab, Pakistan;4. Department of Physics, Faculty of Science, King Khalid University, Abha, Saudi Arabia;5. Department of Chemical Engineering, NFC Institute of Engineering and Fertilizer Research, Faisalabad, Pakistan;6. Shale Gas Research Group (SGRG), Institute of Hydrocarbon Recovery (IHR), Universiti Teknologi PETRONAS, Perak, Malaysia;7. Department of Chemical Engineering, Universiti Teknologi PETRONAS, Perak, Malaysia |
| Abstract: | In this study, a new pressure drop method has been used to investigate the kinetics of carbon dioxide reaction with aqueous blend of 2-amino-2-ethyl-1,3-propanediol (AEPD) with piperazine (PZ). The blending of a small amount of PZ with AEPD has a significant effect on the observed rate constant, kobs. It was observed that kobs values of the blend increased more than twice than the summation of kobs values of individual alkanolamines. The reaction kinetics in this study were modeled by assuming a termolecular mechanism. The addition of 0.1 mol/L of PZ to 1 mol/L AEPD exhibited an observed rate constant, kobs of 8824.1 s−1, which is comparable to other alkanolamine mixtures. Hence, PZ/AEPD mixtures can be potentially used for rapid carbon dioxide capture. |
