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المؤلفBenamor, Abdelbaki
المؤلفAl-Marri, Mohammed Jaber
المؤلفKhraisheh, Majeda
المؤلفNasser, Mustafa S.
المؤلفTontiwachwuthikul, Paitoon
تاريخ الإتاحة2023-02-02T04:34:11Z
تاريخ النشر2016
اسم المنشورJournal of Natural Gas Science and Engineering
المصدرScopus
معرّف المصادر الموحدhttp://dx.doi.org/10.1016/j.jngse.2016.04.063
معرّف المصادر الموحدhttp://hdl.handle.net/10576/39375
الملخصCarbon dioxide managements and its association with global worming remains a major concern among governments and the scientific community, with novel, energy efficient and more affordable technologies topping the research agendas. Despite the importance of amino acids, their use as reaction promoters in combination with alkanolamines has been overlooked by researchers. Here, stopped-flow technique was used for the first time to measure the pseudo-first-order reaction kinetics of CO2 with various aqueous mixtures of N-methyldiethanolamine (MDEA) and glycine (Gly). The experiments were performed at a temperature range from 293 to 313 K and a total amine concentration up to 2 mol/l. The activation energy for CO2-MDEA reaction obtained from this work was found to be 49.24 kJ/mol, and the overall rate constants (kov) increased with increasing temperature and with increasing proportion of Glycine in the solution mixture. Using the zwitterion mechanism to interpret the CO2-MDEA-Gly reaction, we found that the glycine reacts with CO2 (aq) with k2 (M-1 s-1) = 2.40 x 107 exp(-3887.5/T(K)) with an activation energy of 22.95 kJ/mol.
راعي المشروعThis paper was made possible by an NPRP Grant # 7-1154-2-433 from the Qatar National Research Fund (a member of Qatar Foundation). The statements made herein are solely the responsibility of the authors.
اللغةen
الناشرElsevier
الموضوعCarbon dioxide
Glycice
Kinetics
N-methyldiethanolamine
Stopped flow technique
العنوانReaction kinetics of carbon dioxide in aqueous blends of N-methyldiethanolamine and glycine using the stopped flow technique
النوعArticle
الصفحات186-195
رقم المجلد33
dc.accessType Abstract Only


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