Deep desulfurization of gasoline by selective adsorption over solid adsorbents and impact of analytical methods on ppm-level sulfur quantification for fuel cell applications

Xiaoliang Ma, Subramani Velu, Jae Hyung Kim, Chunshan Song

Research output: Contribution to journalArticle

247 Citations (Scopus)

Abstract

The objectives of this work were to comparatively study the performance of a Ni-based adsorbent and a Cu(I)Y-zeolite for the desulfurization of a commercial gasoline by fixed-bed adsorption experiments at room temperature and 200°C, and to clarify the impacts of analytical methods on the ppm-level sulfur quantification in desulfurized liquid fuels for fuel cell applications. A series of standard fuel samples containing known amounts of sulfur compounds in n-decane was prepared and was analyzed by using gas chromatograph coupled with a flame photometric detector (GC-FPD), pulsed flame photometric detector (GC-PFPD) and a total sulfur analyzer. The results show that the GC-FPD and GC-PFPD are not suitable for quantitative estimation of total sulfur concentration in complex hydrocarbon fuels at low ppm-level without considering both the nonlinear response and the quenching effect. The adsorptive desulfurization of a commercial gasoline over the Cu(I)Y-zeolite and a Ni-based adsorbent was conducted and compared using a fixed-bed adsorption system. The Cu(I)Y-zeolite prepared in the present study showed a breakthrough capacity of 0.22 mg S/g of adsorbent (mg/g) at room temperature for removing sulfur in a commercial gasoline to less than 1 ppmw. Under the same experimental conditions, the Ni-based adsorbent exhibited a breakthrough capacity of 0.37 mg/g. The breakthrough capacity of the Ni-based adsorbent was increased by 38% at 200°C. Moreover, the breakthrough capacity of the Ni-based adsorbent corresponding to the outlet sulfur level of 10 ppmw was 7.3 mg/g, which was over an order of magnitude higher than that of Cu(I)Y-zeolite.

Original languageEnglish (US)
Pages (from-to)137-147
Number of pages11
JournalApplied Catalysis B: Environmental
Volume56
Issue number1-2 SPEC. ISS.
DOIs
StatePublished - Mar 10 2005

Fingerprint

fuel cell
Desulfurization
Sulfur
zeolite
Adsorbents
Gasoline
Fuel cells
analytical method
sulfur
adsorption
Zeolites
Adsorption
sulfur compound
Detectors
temperature
hydrocarbon
Sulfur Compounds
liquid
Sulfur compounds
Liquid fuels

All Science Journal Classification (ASJC) codes

  • Catalysis
  • Environmental Science(all)
  • Process Chemistry and Technology

Cite this

@article{182df2dcbe5a494487a7e58353288cdb,
title = "Deep desulfurization of gasoline by selective adsorption over solid adsorbents and impact of analytical methods on ppm-level sulfur quantification for fuel cell applications",
abstract = "The objectives of this work were to comparatively study the performance of a Ni-based adsorbent and a Cu(I)Y-zeolite for the desulfurization of a commercial gasoline by fixed-bed adsorption experiments at room temperature and 200°C, and to clarify the impacts of analytical methods on the ppm-level sulfur quantification in desulfurized liquid fuels for fuel cell applications. A series of standard fuel samples containing known amounts of sulfur compounds in n-decane was prepared and was analyzed by using gas chromatograph coupled with a flame photometric detector (GC-FPD), pulsed flame photometric detector (GC-PFPD) and a total sulfur analyzer. The results show that the GC-FPD and GC-PFPD are not suitable for quantitative estimation of total sulfur concentration in complex hydrocarbon fuels at low ppm-level without considering both the nonlinear response and the quenching effect. The adsorptive desulfurization of a commercial gasoline over the Cu(I)Y-zeolite and a Ni-based adsorbent was conducted and compared using a fixed-bed adsorption system. The Cu(I)Y-zeolite prepared in the present study showed a breakthrough capacity of 0.22 mg S/g of adsorbent (mg/g) at room temperature for removing sulfur in a commercial gasoline to less than 1 ppmw. Under the same experimental conditions, the Ni-based adsorbent exhibited a breakthrough capacity of 0.37 mg/g. The breakthrough capacity of the Ni-based adsorbent was increased by 38{\%} at 200°C. Moreover, the breakthrough capacity of the Ni-based adsorbent corresponding to the outlet sulfur level of 10 ppmw was 7.3 mg/g, which was over an order of magnitude higher than that of Cu(I)Y-zeolite.",
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Deep desulfurization of gasoline by selective adsorption over solid adsorbents and impact of analytical methods on ppm-level sulfur quantification for fuel cell applications. / Ma, Xiaoliang; Velu, Subramani; Kim, Jae Hyung; Song, Chunshan.

In: Applied Catalysis B: Environmental, Vol. 56, No. 1-2 SPEC. ISS., 10.03.2005, p. 137-147.

Research output: Contribution to journalArticle

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AU - Ma, Xiaoliang

AU - Velu, Subramani

AU - Kim, Jae Hyung

AU - Song, Chunshan

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AB - The objectives of this work were to comparatively study the performance of a Ni-based adsorbent and a Cu(I)Y-zeolite for the desulfurization of a commercial gasoline by fixed-bed adsorption experiments at room temperature and 200°C, and to clarify the impacts of analytical methods on the ppm-level sulfur quantification in desulfurized liquid fuels for fuel cell applications. A series of standard fuel samples containing known amounts of sulfur compounds in n-decane was prepared and was analyzed by using gas chromatograph coupled with a flame photometric detector (GC-FPD), pulsed flame photometric detector (GC-PFPD) and a total sulfur analyzer. The results show that the GC-FPD and GC-PFPD are not suitable for quantitative estimation of total sulfur concentration in complex hydrocarbon fuels at low ppm-level without considering both the nonlinear response and the quenching effect. The adsorptive desulfurization of a commercial gasoline over the Cu(I)Y-zeolite and a Ni-based adsorbent was conducted and compared using a fixed-bed adsorption system. The Cu(I)Y-zeolite prepared in the present study showed a breakthrough capacity of 0.22 mg S/g of adsorbent (mg/g) at room temperature for removing sulfur in a commercial gasoline to less than 1 ppmw. Under the same experimental conditions, the Ni-based adsorbent exhibited a breakthrough capacity of 0.37 mg/g. The breakthrough capacity of the Ni-based adsorbent was increased by 38% at 200°C. Moreover, the breakthrough capacity of the Ni-based adsorbent corresponding to the outlet sulfur level of 10 ppmw was 7.3 mg/g, which was over an order of magnitude higher than that of Cu(I)Y-zeolite.

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