کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10274917 | 461777 | 2005 | 15 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Light straight-run gas oil hydrotreatment over sulfided CoMoP/Al2O3-USY zeolite catalysts
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Light straight-run gas oil hydrotreatment over sulfided CoMoP/Al2O3-USY zeolite catalysts Light straight-run gas oil hydrotreatment over sulfided CoMoP/Al2O3-USY zeolite catalysts](/preview/png/10274917.png)
چکیده انگلیسی
Al2O3 supports were modified by integrating USY zeolites (13.6 wt.%) of various nominal SiO2/Al2O3 molar ratios (30-80). The obtained hybrid solids calcined at 500 °C were impregnated at incipient wetness with a Co-Mo-P solution. After sulfiding with CS2-spiked naphtha (at 230 °C, 5.5 MPa and LHSV=3 hâ1) the corresponding catalysts were tested in light straight-run gas oil hydrotreatment at industrially relevant operating conditions. The catalyst containing zeolite of the highest SiO2/Al2O3 molar ratio (80) showed very high hydrodesulfurization activity. Operating at 360 °C, 5.5 MPa and LHSV=2.5 hâ1, ultra-low sulfur diesel (â¼50 ppm S) could be obtained over that material, from a feedstock of 10,400 ppm S. Medium-strong acidity could be playing an important role on this behaviour by promoting isomerization of sterically hindered organo-sulfur compounds to more favorable configurations. Moreover, hydrodearomatization and hydrodenitrogenation were also enhanced by addition of that high-silica zeolite.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Fuel Processing Technology - Volume 86, Issue 4, 25 January 2005, Pages 391-405
Journal: Fuel Processing Technology - Volume 86, Issue 4, 25 January 2005, Pages 391-405
نویسندگان
C. MarÃn, J. Escobar, E. Galván, F. Murrieta, R. Zárate, H. Vaca,