Development of PIBSI type dispersants for carbon deposit from thermal oxidative decomposition of Jet A-1

Yuri Kim, Joongyeon Kim, Dong Hun Hyeon, Jeong Sik Han, Byung Hee Chun, Byung Hun Jeong, Sung Hyun Kim

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

When Jet fuels are exposed to high temperatures and pressures, carbon deposits are formed, and cause a number of performance issues in aircraft systems. One method for reducing the amount of carbon deposits is by the addition of dispersants to jet fuels. In this study, we investigated the effectiveness of polyisobutenyl succinimide (PIBSI) type dispersants in reducing the carbon deposits formed by thermal oxidative decomposition of Jet A-1. PIBSI type dispersants have amphiphilic structures consisting of a polar head and a nonpolar tail. The polar head adsorbs onto the carbon deposit precursors and the nonpolar tail prevents the aggregation of the precursors. An important factor governing the extent of adsorption is the polarity of the head, which is dependent on the polar surface area and the orbital electronegativity. Diethylenetriamine (DETA), triethylenetetramine (TETA), tetraethylenepentamine (TEPA), and pentaethylenehexamine (PEHA) were used as the head groups of alkyleneamines in this study. It was found that the dispersants that had head groups with a large polar surface area and orbital electronegativity strongly adsorbed onto the carbon deposit precursors and exhibited high efficiency with carbon deposit reduction. Based on these results, we propose dispersants containing amino ether groups in the head, as they showed improved carbon deposit reduction efficiencies compared to typical dispersants containing alkyleneamines in the head group.

Original languageEnglish
Pages (from-to)91-97
Number of pages7
JournalFuel
Volume158
DOIs
Publication statusPublished - 2015 Oct 15

Keywords

  • Amino ether
  • Carbon deposit
  • Dispersant
  • Jet A-1
  • Polyisobutenyl succinimide

ASJC Scopus subject areas

  • Fuel Technology
  • Energy Engineering and Power Technology
  • Chemical Engineering(all)
  • Organic Chemistry

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