Patent ID: 8932457
Filing Date: 2015-01-13
Classification: C10G,C10L

Abstract:
1. A catalytic conversion process for producing diesel, comprising: loading a catalyst into a catalytic conversion reactor, wherein the catalyst comprises an aged catalyst having a reduced activity; contacting a feedstock oil with the catalyst in the catalytic conversion reactor to produce oil vapors; separating the oil vapors to obtain diesel and fluid catalytic cracking gas oil, wherein a weight of the fluid catalytic cracking gas oil relative to a weight of the feedstock oil ranges from 12% to 60%, a reaction temperature ranges from about 420° C. to about 550° C., a residence time of the oil vapors ranges from about 0.1 second to about 5 seconds, a weight ratio of the catalyst to the feedstock oil ranges from about 1 to about 10, wherein less than about 10 vol.% of the catalyst has a particle size of less than 40 μm, less than about 15 vol.% of the catalyst has a particle size of greater than 80 μm, and the remainder of the catalyst has a particle size of from about 40 μm to about 80 μm, wherein the volume percentage is calculated based on a total volume of the catalyst.