Process and Device for Treating Catalyst Discharged from Bubbling Bed Hydrogenation of Residual Oil

摘要

The invention relates to a process and a device for treating a catalyst discharged from bubbling bed hydrogenation of residual oil. Provided is a process for treating a catalyst discharged from bubbling bed hydrogenation of residual oil, comprising the following steps: (1) adjustment and control to reduce viscosity; (2) desorption and separation by rotational flow; and (3) separation and resource utilization of an oil-water-catalyst three phase. Also provided is a device for treating a catalyst discharged from bubbling bed hydrogenation of residual oil.

主权项

1. A process for treating a catalyst discharged from bubbling bed for hydrogenation of residual oil, comprising the following steps:
(1) adjustment and control to reduce viscosity, wherein a catalyst discharged intermittently from a bubbling bed reactor for hydrogenation of residual oil is adjusted for storage and then discharged continuously, and is subjected to temperature adjustment by adding water, such that a viscosity of an oil adsorbed on a surface and within pores of discharged catalyst particles is reduced, and a flowability of the adsorbed oil on the surface and within the pores of the discharged catalyst particles is improved; (2) desorption and separation by rotational flow, wherein the adsorbed oil is desorbed and separated from the surface and the pores of the discharged catalyst particles by a flowing shear force from a rotational flow field; and (3) separation and resource utilization of an oil-water-catalyst three phase, wherein an oil/water/catalyst mixture produced from the desorption and separation by rotational flow step is subjected to three-phase separation, achieving recovery of oil, recycling of water obtained by separation, and full recovery of solid particles obtained by separation.