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Biodiesel synthesis from swine manure.

Minyoung Kim1, Sungyup Jung1, Dong-Jun Lee2

  • 1Department of Environment and Energy, Sejong University, Seoul 05006, South Korea.

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|August 24, 2020
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Summary

Biodiesel from swine manure offers a sustainable biofuel solution. A novel thermo-chemical process significantly boosts biodiesel yield, presenting substantial economic and environmental advantages.

Keywords:
BiodieselSwine manureTransesterificationWaste valorizationWaste-to-energy

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Area of Science:

  • Sustainable energy
  • Biotechnology
  • Environmental science

Background:

  • Swine manure (SM) presents a significant waste management challenge.
  • Biofuel production from waste sources is crucial for energy sustainability.
  • Current biodiesel production methods face limitations with impure feedstocks.

Purpose of the Study:

  • To evaluate the potential of swine manure as a feedstock for biodiesel (BD) production.
  • To optimize the biodiesel yield from swine manure lipids.
  • To assess the economic and environmental benefits of SM-derived biodiesel.

Main Methods:

  • Lipid extraction from swine manure.
  • Comparison of acid-catalyzed transesterification (low yield) with non-catalytic thermo-chemical transesterification using a porous material (high yield).
  • Estimation of annual biodiesel production potential and economic benefits.

Main Results:

  • Acid-catalyzed transesterification yielded only 14.2 wt% biodiesel due to impurities.
  • Non-catalytic thermo-chemical transesterification achieved a high yield of 94.7 wt% biodiesel.
  • SM-derived biodiesel could meet a significant portion of current demand in Korea and the USA, offering substantial economic gains.

Conclusions:

  • Biodiesel production from swine manure is a viable and promising biofuel strategy.
  • The developed thermo-chemical non-catalytic method significantly enhances biodiesel yield from swine manure.
  • This approach offers considerable economic benefits and reduces reliance on arable land for biofuel feedstocks.