Catalytic hydrotreating of middle distillates blends in a fixed-bed pilot reactor

An experimental study was conducted in a fixed-bed pilot reactor in order t o evaluate the effect of catalytic hydrotreating on diesel quality by using feedstocks prepared with different amounts of straight run gas oil, kerose ne and jet fuel streams. Experiments were carried out at constant reaction pressure and hydrogen-to-oil ratio of 5.3 MPa and 356.2 mi ml(-1), respecti vely. The effect of reaction temperature and liquid hourly space velocity w ere studied in the range of 613-633 K and 1.5-2.0 h(-1) over a commercial N i-Mo/gamma -Al2O3 catalyst. The experimental information showed that diesel specifications could be reached through single stage hydrotreating of thes e blends at moderate hydrotreating operating conditions. (C) 2001 Elsevier Science B.V. All rights reserved.