title: Alkyl amine and vegetable oil mixture-a viable candidate for CO2capture and utilization.
abstract: In this present work, the absorption of CO2in alkyl amines and vegetable oil mixture has been evaluated. The results showed that the absorption is higher in alkyl amines and vegetable oil mixture compared with the aqueous alkyl amines. In addition to that, by employing the greener and non-toxic vegetable oil media, the CO2gas has been captured as well as converted into value-added products, such as carbamates of ethylenediamine, diethylenetriamine, and triethylenetetramine. The carbamates have been isolated and characterized by Fourier transform infrared and1H and13C nuclear magnetic resonance spectroscopic techniques. The formation of these products in precipitate form has not been observed in the case of aqueous medium. Among the various alkyl amine and vegetable oil combinations, triethylenetetramine in coconut oil medium showed the maximum CO2capture capacity of 72%. The coconut oil used for the process has been recovered, recycled, and reused for 3 cycles. Thus, this novel scheme seems to be a better alternative to conquer the drawback of aqueous amine-based CO2capture as well as for the capture and utilization of the CO2gas to gain the value-added products.
authors.affiliation: Centre for Environmental Studies, Anna University, Chennai, 600 025, India.
authors.forename: A
authors.initials: A
authors.lastname: Uma Maheswari
authors.affiliation: Centre for Environmental Studies, Anna University, Chennai, 600 025, India. kpvelu@annauniv.edu.|Centre for Climate Change and Adaptation Research, Anna University, Chennai, 600 025, India. kpvelu@annauniv.edu.
authors.forename: K
authors.initials: K
authors.lastname: Palanivelu
mesh_terms: D000588:Amines; D002219:Carbamates; D002245:Carbon Dioxide; D000074263:Coconut Oil; D009682:Magnetic Resonance Spectroscopy; D010938:Plant Oils; D014867:Water
chemical_list: D000588:Amines; D002219:Carbamates; D010938:Plant Oils; D014867:Water; D002245:Carbon Dioxide; D000074263:Coconut Oil
keywords: Amines; CO2 absorption; Global warming; TETA carbamate; Value added products; Vegetable oil