Direct conversion of cottonseeds into biodiesel

Gyeongnam Park, Dongho Choi, Jee Young Kim, Sungyup Jung, Yiu Fai Tsang, Eilhann E. Kwon

Research output: Contribution to journalArticlepeer-review

3 Scopus citations

Abstract

Biodiesel production is recommended to achieve sustainable energy practices because of its high compatibility with petrol-derived diesel. Conventionally, acid- or alkaline-catalyzed transesterification of refined oil is used for biodiesel production, however, oil extraction and refinement from oil-bearing biomass leads to losses. Therefore, we propose a novel approach that directly converts cottonseeds into biodiesel. Biodiesel yield from non-catalytic transesterification of cottonseed oil at 360 °C within 1 min was high at 96.3 wt%, surpassing the yield (80.6 wt%) from alkali-catalyzed transesterification at 60 °C for 60 min. Biodiesel yield from non-catalytic transesterification of cottonseed at 360 °C within 1 min was 22.7 wt%. For cottonseed oil content (20.9 wt%), overall biodiesel yield from cottonseed was 108.7 wt%, implying that oil extraction using conventional methods was incomplete. Therefore, directly converting cottonseed into biodiesel through non-catalytic transesterification is a viable and efficient alternative for biodiesel production.

Original languageEnglish
Article number152491
JournalChemical Engineering Journal
Volume493
DOIs
StatePublished - 1 Aug 2024

Keywords

  • Biodiesel
  • Biomass valorization
  • Circular economy
  • Cottonseeds
  • Non-catalytic transesterification

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