关键词: font-family:-apple-system, blinkmacsystemfont, ", font-size:14px, background-color:#FFFFFF, ">固定床渣油加氢, 高效转化, 减渣油, 体积空速, 转化率, 反应系统压力降, 渣油加氢裂化

Abstract: Generally, 100% vacuum residue is not processed in fixed-bed residue hydrotreating units, and the proportion of vacuum residue in the feedstock is not higher than 65%. The operating results of the A fixed-bed residue hydrotreating unit over six cycles show that the higher the proportion of vacuum residue in the feedstock, the shorter the operating cycle of the unit. The volume space velocity of the B fixed-bed residue hydrotreating unit is 0.20 h−1. If the volume space velocity is reduced to 0.15 h−1 and 0.10 h−1, the reactor pressure drop is expected to increase to 2.3 MPa and 3.4 MPa, respectively. The yield of hydrogenated heavy oil in the A fixed-bed residue hydrotreating unit is as high as 93.25%, and the conversion rate of fractions above 520℃ is only 25.38%. Ebullated bed residue hydrocracking technology and slurry bed residue hydrocracking technology can process 100% vacuum residue. The pressure drop in the reactors of the C ebullated bed residue hydrocracking unit and the D slurry bed residue hydrocracking unit is stable, with a pressure drop of only 0.42 MPa in the reactor of unit D. The conversion rates of typical ebullated bed residue hydrocracking technology and slurry bed residue hydrocracking technology can reach 85.87% and 91.49%, respectively.

Key words: font-family:-apple-system, blinkmacsystemfont, ", font-size:14px, background-color:#FFFFFF, ">fixed bed residue hydrotreating, efficient conversion, vacuum residue, volume space velocity, conversion rate, reaction system pressure drop, residue hydrocracking