Effects of aromatics, nitrogen compounds, diesel additives, and moisture on adsorptive desulfurization of diesel fuel over activated carbon

Jing Xiao, Xiaoliang Ma, Chunshan Song, Zhong Li

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Effects of mono- and poly-aromatic compounds, nitrogen compounds, diesel additives and moisture on adsorptive desulfurization of the simulated diesel fuel over a commercial activated carbon have been investigated. The results show that the coexisting mono-aromatics, even at a concentration of 10 wt %, have only a slight effect on the adsorption capacity of the activated carbon for sulfur removal, while the poly-aromatics have a significant effect, even at a concentration less than 1.0 wt %. The inhibiting effect of poly-aromatics increases in the order of naphthalene ∼ fluorene < methylnaphthalene < phenanthrene. The presence of a trace amount (100-1,000 ppmw) of organonitrogen compounds, diesel additives (2,6-di-tert-butyl-4-methyl-phenol, 2-ethyl hexyl nitrate, and polyethylene vinyl acetate) or moisture has a strong effect on adsorptive desulfurization performance of the activated carbon, as these molecules with higher dipole moment have stronger adsorptive affinity with the oxygen-containing functional groups on the surface, which inhibits the adsorption of the sulfur compounds on the adsorption sites.

Original languageEnglish (US)
Title of host publicationAmerican Chemical Society - 238th National Meeting and Exposition, ACS 2009, Abstracts of Scientific Papers
StatePublished - Dec 1 2009
Event238th National Meeting and Exposition of the American Chemical Society, ACS 2009 - Washington, DC, United States
Duration: Aug 16 2009Aug 20 2009

Publication series

NameACS National Meeting Book of Abstracts
ISSN (Print)0065-7727

Other

Other238th National Meeting and Exposition of the American Chemical Society, ACS 2009
CountryUnited States
CityWashington, DC
Period8/16/098/20/09

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Chemical Engineering(all)

Fingerprint Dive into the research topics of 'Effects of aromatics, nitrogen compounds, diesel additives, and moisture on adsorptive desulfurization of diesel fuel over activated carbon'. Together they form a unique fingerprint.

  • Cite this

    Xiao, J., Ma, X., Song, C., & Li, Z. (2009). Effects of aromatics, nitrogen compounds, diesel additives, and moisture on adsorptive desulfurization of diesel fuel over activated carbon. In American Chemical Society - 238th National Meeting and Exposition, ACS 2009, Abstracts of Scientific Papers (ACS National Meeting Book of Abstracts).