Synthesis and cetane improver performance of fatty acid glycol nitrates

G. J. Suppes, Zhi Chen, Ying Rui, M. Mason, J. A. Heppert

Research output: Contribution to journalArticle

16 Scopus citations

Abstract

Triglycerides are renewable chemical feedstocks available from avariety of resources, induding vegetable oils, tall oils and beef or pork fat. Chemical synthesis methods, reaction conversions and performances of a series of organic acid glycol nitrates were investigated to evaluate the viability of converting triglycerides into nitrates for use as cetane improvers. Organic add glycol nitrates were synthesized from five acids ranging from C6 to C18 to determine the impact of the acids carbon number and degree of saturation on performance as a cetane improver. Chemical synthesis included acid catalyzed esterification of organic adds with ethylene glycol followed by nitration of the terminal alcohol group to form fatty add glycol nitrates. Fatty add glycol nitrates with carbon numbers between 8 and 14 exhibited the best performance - a balance between high carbon numbers and high nitrate group concentration. All the nitrates provided good cetane improving capabilities.

Original languageEnglish
Pages (from-to)73-81
Number of pages9
JournalFuel
Volume78
Issue number1
DOIs
StatePublished - 1999

Keywords

  • Cetane improvers
  • Fatty acid
  • Glycol nitrates

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