کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9609941 | 46575 | 2005 | 11 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Deep desulfurization of gasoline by selective adsorption over solid adsorbents and impact of analytical methods on ppm-level sulfur quantification for fuel cell applications
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
کاتالیزور
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Deep desulfurization of gasoline by selective adsorption over solid adsorbents and impact of analytical methods on ppm-level sulfur quantification for fuel cell applications Deep desulfurization of gasoline by selective adsorption over solid adsorbents and impact of analytical methods on ppm-level sulfur quantification for fuel cell applications](/preview/png/9609941.png)
چکیده انگلیسی
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.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Catalysis B: Environmental - Volume 56, Issues 1â2, 10 March 2005, Pages 137-147
Journal: Applied Catalysis B: Environmental - Volume 56, Issues 1â2, 10 March 2005, Pages 137-147
نویسندگان
Xiaoliang Ma, Subramani Velu, Jae Hyung Kim, Chunshan Song,