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Osmotic Membrane Distillation Crystallization of NaHCO 3

Author

Listed:
  • Mar Garcia Alvarez

    (Materials & Process Engineering (iMMC-IMAP), UCLouvain, Place Sainte Barbe 2, B-1348 Louvain-la-Neuve, Belgium
    Research & Innovation Centre for Process Engineering (ReCIPE), Place Sainte Barbe, 2 bte L5.02.02, B-1348 Louvain-la-Neuve, Belgium)

  • Vida Sang Sefidi

    (Materials & Process Engineering (iMMC-IMAP), UCLouvain, Place Sainte Barbe 2, B-1348 Louvain-la-Neuve, Belgium
    Research & Innovation Centre for Process Engineering (ReCIPE), Place Sainte Barbe, 2 bte L5.02.02, B-1348 Louvain-la-Neuve, Belgium)

  • Marine Beguin

    (Materials & Process Engineering (iMMC-IMAP), UCLouvain, Place Sainte Barbe 2, B-1348 Louvain-la-Neuve, Belgium)

  • Alexandre Collet

    (Materials & Process Engineering (iMMC-IMAP), UCLouvain, Place Sainte Barbe 2, B-1348 Louvain-la-Neuve, Belgium)

  • Raul Bahamonde Soria

    (Materials & Process Engineering (iMMC-IMAP), UCLouvain, Place Sainte Barbe 2, B-1348 Louvain-la-Neuve, Belgium
    Renewable Energy Laboratory, Chemical Sciences Faculty, Universidad Central del Ecuador, Quito 170129, Ecuador)

  • Patricia Luis

    (Materials & Process Engineering (iMMC-IMAP), UCLouvain, Place Sainte Barbe 2, B-1348 Louvain-la-Neuve, Belgium
    Research & Innovation Centre for Process Engineering (ReCIPE), Place Sainte Barbe, 2 bte L5.02.02, B-1348 Louvain-la-Neuve, Belgium)

Abstract

A new crystallization process for sodium bicarbonate (NaHCO 3 ) was studied, proposing the use of osmotic membrane distillation crystallization. Crystallization takes place due to the saturation of the feed solution after water evaporation on the feed side, permeating through the membrane pores to the osmotic side. The process operational parameters, i.e., feed and osmotic velocities, feed concentration, and temperature were studied to determine the optimal operating conditions. Regarding the feed and osmotic velocities, values of 0.038 and 0.0101 m/s, respectively, showed the highest transmembrane flux, i.e., 4.4 × 10 −8 m 3 /m 2 ·s. Moreover, study of the temperature variation illustrated that higher temperatures have a positive effect on the size and purity of the obtained crystals. The purity of the crystals obtained varied from 96.4 to 100% In addition, the flux changed from 2 × 10 −8 to 7 × 10 −8 m 3 /m 2 ·s with an increase in temperature from 15 to 40 °C. However, due to heat exchange between the feed and the osmotic solutions, the energy loss in osmotic membrane distillation crystallization is higher at higher temperatures.

Suggested Citation

  • Mar Garcia Alvarez & Vida Sang Sefidi & Marine Beguin & Alexandre Collet & Raul Bahamonde Soria & Patricia Luis, 2022. "Osmotic Membrane Distillation Crystallization of NaHCO 3," Energies, MDPI, vol. 15(7), pages 1-13, April.
    • Handle: RePEc:gam:jeners:v:15:y:2022:i:7:p:2682-:d:787890
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    Cited by:

    1. Wuhib Zeine Ousman & Esayas Alemayehu & Patricia Luis, 2023. "Fluoride Removal and Recovery from Water Using Reverse Osmosis and Osmotic Membrane Crystallization," Clean Technol., MDPI, vol. 5(3), pages 1-24, August.

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