Degradation studies of amines and alkanolamines during sour gas treatment process

Islam, M.S. and Yusoff, R. and Ali, B.S. and Islam, M.N. and Chakrabarti, M.H. (2011) Degradation studies of amines and alkanolamines during sour gas treatment process. International Journal of Physical Sciences, 6 (25). pp. 5883-5896. ISSN 19921950,

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Aqueous solutions of alkanolamines are widely used for the removal of acidic gases such as H 2S, CO 2, COS and CS 2 in the sour gas treatment process. In spite of the resistance of alkanolamines to chemical breakdown, plant and laboratory reports indicate that, on prolonged use, alkanolamines may be transformed into undesirable products from which the amines are not easily recovered. This phenomenon, commonly referred to as 'amine degradation', not only leads to amine losses, but may also contribute to operational problems such as foaming, corrosion, high solution viscosity and fouling as a result of decreasing the plant life. Amine based gas purification plants having absorption and stripping system, solvents are degraded at these two units mainly by oxidative degradation at absorber condition and thermal degradation at stripper condition. Identification of amine degradation routes, remediation of degradation, types of degradation products and studies on degradation reaction mechanism becomes essential for successful plant operation. Gas chromatography-mass spectrometry (GC-MS), ion chromatograph (IC), high performance liquid chromatography (HPLC), nuclear magnetic resonance spectroscopy (NMR) and Fourier transform infrared absorption spectrometry (FT-IR) are extensively used to identify the various degradation products. A comprehensive review of the latest research activities on alkanolamines degradation, best method for identification, various properties of degradation products and their classification is presented in this paper. This study would help to develop better understanding of amine degradation. © 2011 Academic Journals.

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Additional Information: Cited By (since 1996): 2 Export Date: 2 January 2013 Source: Scopus Language of Original Document: English Correspondence Address: Ali, B. S.; Department of Chemical Engineering, Faculty of Engineering, University of Malaya, 50603 Kuala Lumpur, Malaysia; email: References: Abdi, M.A., Purification of partially degraded diethanolamine solutions, PhD thesis (1997) University of British Columbia, , UBC), Canada; Amiri, A.P., Haghighi, A.A., Ehsani, M.R., Alkanolamines foaming tendency: Effect of amine mixing, amine degradation and gas flow rate (2007) Farayandno, 8, pp. 1-6; Ariana, (2010) Fouling Effect of Degradation Products, ,; Aroonwilas, A., Veawab, A., Characterization and comparison of the CO 2 absorption performance into single and blended alkanolamines in a packed column (2004) Ind. Eng. Chem. 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Uncontrolled Keywords: Absorption, Alkanolamines, Degradation, Sour gas, Stripping.
Subjects: T Technology > TA Engineering (General). Civil engineering (General)
Divisions: Faculty of Engineering
Depositing User: Mr Jenal S
Date Deposited: 18 Apr 2013 00:16
Last Modified: 18 Apr 2013 00:16

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