| 000 | 02263nab a2200205 4500 | ||
|---|---|---|---|
| 005 | 20260520000900.0 | ||
| 008 | 260224s2010 xxu | ||
| 245 | 0 | 0 | _aDirectly producing clean and low softening point diesel using integrated hydrotreating and hydroisomerizing catalysts |
| 260 |
_a _b _cjul./ago. 2010 |
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| 270 | _a18/11/2010 ; 18/11/2010 | ||
| 300 | _a6 p. ; 3772-3777 | ||
| 520 | _aTranscripción del resumen del autor. A novel hydrotreating (HT) catalyst of Mo-W-Ni-P supported on -Al2O3 modified by a Group IVA element and a hydroisomerizing (HI) catalyst of W-Ni supported on modified zeolite ß with mesopores were prepared by the impregnation method. An integrated process using HT and HI catalysts was designed, and its advantages were well-investigated for directly producing clean diesel from various feedstocks. An industrial application shows that the integrated catalysts have flexible operating modes and are suitable for a wide range of feedstocks. For the HT operating mode, the integrated catalysts showed better hydrodesulfurization (HDS) performance for upgrading the poor quality diesel with a sulfur content of 1000 ppmw and a nitrogen content of 1131 ppmw. The sulfur content of diesel product is less than 40 ppmw, coupled with a hydrodenitrogenation (HDN) rate of 85.76% and an HDS rate of 96.3%. The cetane index increases by 7 units, and the diesel yield is more than 98.0 wt %. For the hydro-dewaxing operating mode, the integrated catalysts showed excellent catalytic performance for upgrading the feeds, with a sulfur content of 990 ppmw and a nitrogen content of 805 ppmw. The HDN rate of 99.42% and HDS rate of 99.99% were also achieved. More importantly, while retaining the cetane index, the diesel yield was as high as 88.72 wt % and the sulfur content and solidifying point of diesel were less than 10 ppmw and -29.3 °C, respectively. The higher HDS and HDN activities of the integrated catalysts are associated primarily with enhanced hydrogenation activity and increased acidity of the HI catalyst. | ||
| 581 | _a4 | ||
| 773 | 0 |
_tEnergy & fuels _g24 |
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| 942 | _cARTICULO | ||
| 100 | 1 |
_aZhang, Xuejun _919594 |
|
| 100 | 1 |
_aGuo, Aijun _943688 |
|
| 100 | 1 |
_aWang, Fucun _940824 |
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| 999 |
_c171988 _d171988 |
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