Foaming Prevention in Absorption Columns through Removal of Contaminants from Amine-Based Solutions Using a Solvent Resistant Nanofiltration (SRNF) Membrane

Zahir Razzaz, Abdul Wahab Mohammad, Ebrahim Mahmoudi

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Abstract

An environmentally friendly removal method based on a membrane process for the purification of aqueous amine solution for use in carbon dioxide absorption was analyzed. Two kinds of commercial solvent resistant nanofiltration (SRNF) membranes (Desal-DL and SR100, polymeric) were chosen, and their capabilities in removing three common contaminants from diethanolamine (DEA) solution were examined. These contaminants that caused foaming of DEA solution include sodium chloride, sodium sulfite, and acetic acid. From the two tested solvent resistant nanofiltration (SRNF) membranes, it had been found that Desal-DL membrane provided promising results and performance that can be an alternative to conventional separation, including distillation, for purification of amine solution. Experiments were also conducted to test the foaming tendency and stability of the untreated and treated amine solution. The untreated DEA with sodium sulfite had the highest foaming tendency. However, after NF treatment, there was substantial decrease of the foaming tendency. The results obtained confirmed the potential of using SRNF-membranes to reduce foaming tendency and stability in DEA solution.

Original languageEnglish
Pages (from-to)12135-12142
Number of pages8
JournalIndustrial and Engineering Chemistry Research
Volume54
Issue number48
DOIs
Publication statusPublished - 9 Dec 2015

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diethanolamine
Nanofiltration membranes
Amines
Impurities
Purification
Sodium
Membranes
Sodium chloride
Acetic acid
Carbon Dioxide
Sodium Chloride
Distillation
Acetic Acid
Carbon dioxide

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Chemistry(all)
  • Industrial and Manufacturing Engineering

Cite this

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title = "Foaming Prevention in Absorption Columns through Removal of Contaminants from Amine-Based Solutions Using a Solvent Resistant Nanofiltration (SRNF) Membrane",
abstract = "An environmentally friendly removal method based on a membrane process for the purification of aqueous amine solution for use in carbon dioxide absorption was analyzed. Two kinds of commercial solvent resistant nanofiltration (SRNF) membranes (Desal-DL and SR100, polymeric) were chosen, and their capabilities in removing three common contaminants from diethanolamine (DEA) solution were examined. These contaminants that caused foaming of DEA solution include sodium chloride, sodium sulfite, and acetic acid. From the two tested solvent resistant nanofiltration (SRNF) membranes, it had been found that Desal-DL membrane provided promising results and performance that can be an alternative to conventional separation, including distillation, for purification of amine solution. Experiments were also conducted to test the foaming tendency and stability of the untreated and treated amine solution. The untreated DEA with sodium sulfite had the highest foaming tendency. However, after NF treatment, there was substantial decrease of the foaming tendency. The results obtained confirmed the potential of using SRNF-membranes to reduce foaming tendency and stability in DEA solution.",
author = "Zahir Razzaz and Mohammad, {Abdul Wahab} and Ebrahim Mahmoudi",
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T1 - Foaming Prevention in Absorption Columns through Removal of Contaminants from Amine-Based Solutions Using a Solvent Resistant Nanofiltration (SRNF) Membrane

AU - Razzaz, Zahir

AU - Mohammad, Abdul Wahab

AU - Mahmoudi, Ebrahim

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N2 - An environmentally friendly removal method based on a membrane process for the purification of aqueous amine solution for use in carbon dioxide absorption was analyzed. Two kinds of commercial solvent resistant nanofiltration (SRNF) membranes (Desal-DL and SR100, polymeric) were chosen, and their capabilities in removing three common contaminants from diethanolamine (DEA) solution were examined. These contaminants that caused foaming of DEA solution include sodium chloride, sodium sulfite, and acetic acid. From the two tested solvent resistant nanofiltration (SRNF) membranes, it had been found that Desal-DL membrane provided promising results and performance that can be an alternative to conventional separation, including distillation, for purification of amine solution. Experiments were also conducted to test the foaming tendency and stability of the untreated and treated amine solution. The untreated DEA with sodium sulfite had the highest foaming tendency. However, after NF treatment, there was substantial decrease of the foaming tendency. The results obtained confirmed the potential of using SRNF-membranes to reduce foaming tendency and stability in DEA solution.

AB - An environmentally friendly removal method based on a membrane process for the purification of aqueous amine solution for use in carbon dioxide absorption was analyzed. Two kinds of commercial solvent resistant nanofiltration (SRNF) membranes (Desal-DL and SR100, polymeric) were chosen, and their capabilities in removing three common contaminants from diethanolamine (DEA) solution were examined. These contaminants that caused foaming of DEA solution include sodium chloride, sodium sulfite, and acetic acid. From the two tested solvent resistant nanofiltration (SRNF) membranes, it had been found that Desal-DL membrane provided promising results and performance that can be an alternative to conventional separation, including distillation, for purification of amine solution. Experiments were also conducted to test the foaming tendency and stability of the untreated and treated amine solution. The untreated DEA with sodium sulfite had the highest foaming tendency. However, after NF treatment, there was substantial decrease of the foaming tendency. The results obtained confirmed the potential of using SRNF-membranes to reduce foaming tendency and stability in DEA solution.

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