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Updated: May 24, 2026

Ultrasonic-Assisted Preparation of Biodiesel Products from Vegetable Oils
Published on: April 19, 2024
Value-added uses for crude glycerol--a byproduct of biodiesel production
Fangxia Yang1, Milford A Hanna, Runcang Sun
1Department of Biological systems Engineering, Industrial Agricultural Products Center, University of Nebraska-Lincoln, Lincoln, NE 68583, USA. mhanna1@unl.edu.
Abstract:
Biodiesel is a promising alternative, and renewable, fuel. As its production increases, so does production of the principle co-product, crude glycerol. The effective utilization of crude glycerol will contribute to the viability of biodiesel. In this review, composition and quality factors of crude glycerol are discussed. The value-added utilization opportunities of crude glycerol are reviewed. The majority of crude glycerol is used as feedstock for production of other value-added chemicals, followed by animal feeds.
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