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Progress, prospect and challenges in glycerol purification process: A review

  • M. S. Ardi
  • , M. K. Aroua
  • , N. Awanis Hashim*
  • *Corresponding author for this work

Research output: Contribution to journalReview articlepeer-review

250 Scopus citations

Abstract

Glycerol surplus in recent decades due to global increase in biodiesel production has created a new form of challenge in terms of purification for crude glycerol. This review summarizes the progress of crude glycerol purification technologies using various techniques. Critical insights are given regarding the application of suitable techniques for crude glycerol purification which includes chemical pre-treatment, methanol removal, vacuum distillation, ion exchange, activated carbon and membrane separation technology. Extensive discussion is made in relation with stages and processes in the conventional, current and emerging glycerol purification technologies. Lastly, aspects concerning the challenges of glycerol utilization and purification are thoroughly discussed.

Original languageEnglish
Pages (from-to)1164-1173
Number of pages10
JournalRenewable and Sustainable Energy Reviews
Volume42
DOIs
StatePublished - Feb 2015

Bibliographical note

Publisher Copyright:
© 2014 Elsevier Ltd. All rights reserved.

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

  1. SDG 7 - Affordable and Clean Energy
    SDG 7 Affordable and Clean Energy

Keywords

  • Biodiesel
  • Crude glycerol
  • Membrane
  • Purification

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment

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