PURIFICATION OF DECOMPOSITION PRODUCTS OF ALKANOLAMINES USED IN NATURAL GAS CLEANING
Abstract
This article reviews some of the parameters that affect the corrosivity of alkanolamine solvents used for natural gas treatment. Analysis shows that methyldiethanolamine decomposition products increase the corrosive activity of alkanolamine solutions. Purification of working solutions of methyldiethanolamine in ion-exchange resins, thermostable salts, chlorine ions and solutions leads to a significant decrease in electrical conductivity. This shows the urgency of developing new effective methods for cleaning alkanolamine solutions from impurities.
References
U.S. Energy Information Administration. International Energy Outlook 2021 - With Projections to 2050. 2021. Available online: https://www.eia.gov/outlooks/ieo (accessed on 13 December 2021).
BP p.l.c. Energy Outlook 2020 Edition. 2020. Available online: https://www.bp.com/en/global/corporate/news-andinsights/ press-releases/bp-energy-outlook-2020.html (accessed on 13 December 2021).
Eide-Haugmo I, Brakstad OG, Hoff KA, Sørheim KR, Silva EFD, Svendsen HF (2009). Environmental impact of amines. GHGT-9, 1: 1297-1304.
Franco JA, Montigny D, Kentisha SE, Perera JM, Stevens GW (2009). Effect of amine degradation products on the membrane gas absorption process. Chem. Eng. Sci., 64: 4016-4023
M. S. Islam, R. Yusoff, B. S. Ali, M. N. Islam and M. H. Chakrabarti Degradation studies of amines and alkanolamines during sour gas treatment process // International Journal of the Physical Sciences. 2011. Vol. 6(25). P. 5877-5890.)
Closmann F (2009). Solvent degradation MEA and MDEA/PZ blends systems. Website Closmann F, Nguyen T, Rochelle GT (2009). MDEA/Piperazine as a solvent for CO2 capture. Energy Procedia 1: 1351-1357.
Critchfield, J.E. and Jenkins, J.L. Evidence of MDEA degradation in tail gas treating plants // Petroleum Technology Quarterly. Spring 1999.P. 87-95.
Kohl, Arthur and Nielsen, Richard. Gas Purification. Fifth Edition. 1997.P. 233. 8. M.S. DuPart, T.R. Bacon and D.J.Edwards. Understanding corrosion in alkanolamine gas treating plants // Hydrocarbon Processing. May 1993.P. 89-94.
Патент США US5162084.
Патент США US5208164.
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