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Glycerol production and its applications as a raw material: A review

  • H. W. Tan
  • , A. R. Abdul Aziz*
  • , M. K. Aroua
  • *Corresponding author for this work

Research output: Contribution to journalReview articlepeer-review

642 Scopus citations

Abstract

Glycerol is a valuable byproduct in biodiesel production by transesterification, soap manufacturing by saponification as well as hydrolysis reaction. The purity of glycerol obtained is low due to the presence of impurities such as remaining catalyst, water, soaps, salts and esters formed during the reaction. Purification of glycerol as well as the conversion of glycerol into valuable products has attained growing interest in recent years due to the dramatic growth of the biodiesel industry. This paper reviews different methods of producing crude glycerol as the major by-product. Purification of glycerol was reported as well as value-added products produced from glycerol.

Original languageEnglish
Pages (from-to)118-127
Number of pages10
JournalRenewable and Sustainable Energy Reviews
Volume27
DOIs
StatePublished - 2013

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
  2. SDG 9 - Industry, Innovation, and Infrastructure
    SDG 9 Industry, Innovation, and Infrastructure

Keywords

  • Crude glycerol
  • Glycerol
  • Hydrolysis
  • Purification
  • Saponification
  • Tranesterification

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment

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