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Computers & chemical engineering, 2009-05, Vol.33 (5), p.1091-1096
2009

Details

Autor(en) / Beteiligte
Titel
Production of biodiesel from Jatropha curcas L. oil
Ist Teil von
  • Computers & chemical engineering, 2009-05, Vol.33 (5), p.1091-1096
Ort / Verlag
Elsevier Ltd
Erscheinungsjahr
2009
Link zum Volltext
Quelle
Alma/SFX Local Collection
Beschreibungen/Notizen
  • A two-step process consisting of pre-esterification and transesterification was developed to produce biodiesel from crude Jatropha curcas L. oil. The free fatty acids (FFAs) in the oil were converted to methyl esters in the pre-esterification step using sulfuric acid or solid acid prepared by calcining metatitanic acid as catalysts. The acid value of oil was reduced from the initial 14 mg-KOH/g-oil to below 1.0 mg-KOH/g-oil in 2 h under the conditions of 12 wt% methanol, 1 wt% H 2SO 4 in oil at 70 °C. The conversion of FFAs was higher than 97% at 90 °C in 2 h using 4 wt% solid acid and a molar ratio of methanol to FFAs of 20:1. Phospholipid compounds were eliminated during pre-esterification and a separate degumming operation was unnecessary. The yield of biodiesel by transesterification was higher than 98% in 20 min using 1.3% KOH as catalyst and a molar ratio of methanol to oil 6:1 at 64 °C.
Sprache
Englisch
Identifikatoren
ISSN: 0098-1354
eISSN: 1873-4375
DOI: 10.1016/j.compchemeng.2008.09.012
Titel-ID: cdi_crossref_primary_10_1016_j_compchemeng_2008_09_012

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