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

Fingerprint

Nitrogen Compounds
Nitrogen compounds
Desulfurization
Diesel fuels
Activated carbon
Moisture
Adsorption
Sulfur Compounds
Sulfur compounds
Aromatic compounds
Dipole moment
Naphthalene
Phenol
Nitrates
Functional groups
Phenols
Polyethylenes
Oxygen
Molecules

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Chemical Engineering(all)

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).
Xiao, Jing ; Ma, Xiaoliang ; Song, Chunshan ; Li, Zhong. / Effects of aromatics, nitrogen compounds, diesel additives, and moisture on adsorptive desulfurization of diesel fuel over activated carbon. American Chemical Society - 238th National Meeting and Exposition, ACS 2009, Abstracts of Scientific Papers. 2009. (ACS National Meeting Book of Abstracts).
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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.",
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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, 238th National Meeting and Exposition of the American Chemical Society, ACS 2009, Washington, DC, United States, 8/16/09.

Effects of aromatics, nitrogen compounds, diesel additives, and moisture on adsorptive desulfurization of diesel fuel over activated carbon. / Xiao, Jing; Ma, Xiaoliang; Song, Chunshan; Li, Zhong.

American Chemical Society - 238th National Meeting and Exposition, ACS 2009, Abstracts of Scientific Papers. 2009. (ACS National Meeting Book of Abstracts).

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

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Xiao J, Ma X, Song C, Li Z. 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. 2009. (ACS National Meeting Book of Abstracts).