NEGATIVE EFFECT OF HEAT STABLE SALT IN ALKANOLAMINE SOLUTION ON DESULFURIZATION PLANT AND ITS REMOVAL PROCESS

Petroleum Processing and Petrochemicals ›› 2020, Vol. 51 ›› Issue (4): 43-49.

NEGATIVE EFFECT OF HEAT STABLE SALT IN ALKANOLAMINE SOLUTION ON DESULFURIZATION PLANT AND ITS REMOVAL PROCESS

Received:2019-09-27 Revised:2019-12-26 Online:2020-04-12 Published:2020-04-28
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Abstract

Abstract: The types of heat stable salts（HSS），the cause of formation and the harmful influence of HSS on desulfurization unit with alkanolamine solution were reviewed. The technologies and applications of removing HSS, focusing on the technologies and application status of removing HSS with anion exchange resin. It is suggested that the fixed-bed ion-exchange resin amine purification technology with domestic resin should be adopted in combination with the existing alkanolamine de-H2S device as well as the on-site utilities to reduce the amine liquid loss of the amine purification unit and the entering of reclaimed water, thus to reduce energy and material consumption.

Key words: HSS, N-methyldiethanolamine, anion exchange resin, amine purification

CLC Number:

References

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