sg

Chemistry

No. 1 (2025): FarDU ilmiy xabarlari jurnali (TABIIY FANLAR)

SEPARATION OF THERMALLY STABLE SALTS FROM METHYLDIETHANOLAMINE USED IN THE PURIFICATION OF NATURAL GASES FROM SOUR GASES

Submitted
November 23, 2024
Published
2025-02-25

Abstract

This article studies the purification of thermally stable salts from (methyl)diethanolamine used for the purification of natural gas using sorbents. The purification of working solutions of methyldiethanolamine on ion exchange resins is considered an effective method, using AB-17-8 anionite. Pseudo-first and pseudo-second order kinetic models were used to evaluate the kinetics and adsorption mechanism.

References

  1. 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).
  2. BP p.l.c. Energy Outlook 2020 Edition. 2020. Available online: https://www.bp.com/en/global/corporate/news-and-insights/ press-releases/bp-energy-outlook-2020.html (accessed on 13 December 2021).
  3. Eide-Haugmo I, Brakstad OG, Hoff KA, Sørheim KR, Silva EFD, Svendsen HF (2009). Environmental impact of amines. GHGT-9, 1: 1297-1304.
  4. 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
  5. 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.)
  6. 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.
  7. Critchfield, J.E. and Jenkins, J.L. Evidence of MDEA degradation in tail gas treating plants // Petroleum Technology Quarterly. Spring 1999.P. 87-95. 8. 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.
  9. D. Bekchanov, H. Kawakita, M. Mukhamediev, S. Khushvaktov, M. Juraev. Sorption of Cobalt (II) and Chromium (III) Ions to Nitrogen- and Sulfur-Containing Polyampholyte on the Basis of Polyvinylchloride. Polymers for Advanced Technologies. 2021. Vol. 32 (1). pp. 457-470. https://doi.org/10.1002/pat.5209
  10. Ho Y.S, McKay G. Pseudo-second order model for sorption processes. Process Biochemistry, 1999; 34: 451–465. https://doi.org/10.1016/S0032-9592(98)00112-5

Most read articles by the same author(s)