H2SO4/CaO-Catalyzed Process for Biodiesel Production from High Acid Value Jatropha curcas Crude Oil

• Tsuchiya Yooko

  Environmental Science Research Laboratory, Central Research Institute of Electric Power Industry

• Kaneki Yuichi

  Field Technology Laboratory Inc.

• Yamakoshi Yukiyasu

  Department of Environmental Energy, Hokkaido Industrial Research Institute

抄録

Transesterification is affected by the free fatty acid (FFA) content of vegetable oils or animal fats. A two-step H₂SO₄/CaO-catalyzed methanolysis process has been employed for the efficient conversion of Jatropha curcas crude oil, which has an acid value greater than 30 mg KOH/g, into fatty acid methyl ester (FAME). The effects of H₂SO₄ catalyst addition, of FFA, and of the water produced as a by-product are investigated. The maximum esterification activity of the initial FFA content are obtained with 0.5–1.2 wt% H₂SO₄ relative to Jatropha crude oil. The esterification product is used as the substrate for a second, CaO-catalyzed, transesterification. Water usually has an adverse effect on transesterification; however, this study proves that the effect of water is negligible. Using this two-step methanolysis reaction, a FAME level greater than 96% can be obtained in the final product.

収録刊行物

• JOURNAL OF CHEMICAL ENGINEERING OF JAPAN

  JOURNAL OF CHEMICAL ENGINEERING OF JAPAN 44 (7), 529-533, 2011

  公益社団法人 化学工学会

キーワード

• Biodiesel
• Transesterification
• Free Fatty Acid
• Heterogeneous Catalyst
• Jatropha curcas

詳細情報

• CRID: 1390282679546649600
• NII論文ID: 10029241269
• NII書誌ID: AA00709658
• DOI: 10.1252/jcej.10we197
• ISSN: 18811299
• ISSN: 00219592
• NDL書誌ID: 11163058
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I11163058
• Web Site: http://www.jstage.jst.go.jp/article/jcej/44/7/44_10we197/_pdf
• 本文言語コード: en
• データソース種別:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可