| 摘要 |
<p>To provide a mixing device capable of effectively mixing stock oil with a catalyst promptly and evenly, while increasing the amount of throughput. In a mixing device 1, when a mass flow per unit area of a moving bed is Q [kg/m 2 s], the difference between an outer diameter and an inner diameter of the moving bed W [m], an inner diameter of a reaction tube D [m], a linear velocity of a horizontal component of the stock oil at a jet orifice of the internal stock oil injection nozzle u1 [m/s], the stock oil being supplied from the internal stock oil supply part, and a linear velocity of a horizontal component of the stock oil at a jet orifice of the external stock oil injection nozzle u2 [m/s], the stock oil being supplied from the external stock oil supply part, the relations of 8.0 ‰¥ Q × (W/D) / (u1 + u2), Q = 300 to 2000 [kg/m 2 s], W/D = 0.2 to 0.5, u1 = 5 to 300 [m/s], and u2 = 5 to 300 [m/s] are satisfied.</p> |
