Process to partially upgrade slurry oil
View Patent ↗A process of producing a light oil stream from slurry oils. The process begins by obtaining slurry oil from a fluid catalytic cracking unit. The slurry oil is then flowed over a fixed bed catalyst, consisting essentially of a non-metal catalyst, to produce a processed slurry oil. The processed slurry oil is then separated by boiling point to separate out the light oil stream.
1. A process comprising of:
a) obtaining slurry oil from a fluid catalytic cracking unit wherein the slurry oil carries from about 400 ppm to about 4000 ppm of catalyst fine particles;
b) flowing the slurry oil over a fixed bed catalyst, consisting essentially of a zeolite catalyst, to produce a processed slurry oil; and
c) separating the processed slurry oil by boiling point to separate out a light cycle oil stream.
2. The process of claim 1 , wherein the slurry oil is flowed over the fixed bed catalyst at a temperature from 670° F. to 770° F.
3. The process of claim 1 , wherein the slurry oil is flowed over the fixed bed catalyst at pressures less than 550 psig.
4. The process of claim 1 , wherein the slurry oil has a boiling range from 375° F. to 1200° F.
5. The process of claim 1 , wherein the light cycle oil stream has a boiling range less than 650° F.
6. The process of claim 1 , wherein the light cycle oil stream has a boiling range from 250° F. to 650° F.
7. The process of claim 1 , wherein the zeolite catalyst has a structure selected from the group consisting of: mordenite framework inverted, faujasite, mordenite, beta and combinations thereof.
8. The process of claim 1 , wherein the catalyst is a ZSM-5 catalyst.
9. The process of claim 1 , further comprising the steps of regenerating the catalyst for reuse, repeating steps a through c, and reusing the catalyst in step b.
10. A process comprising of:
a) obtaining slurry oil from a fluid catalytic cracking unit wherein the slurry oil carries from about 400 ppm to about 4000 ppm of catalyst fine particles;
b) flowing the slurry oil over a fixed bed catalyst at a temperature from 670° F. to 770° F. and at pressures less than 550 psig, consisting essentially of a ZSM-5 catalyst, to produce a processed slurry oil; and
c) separating the processed slurry oil by boiling point to separate out a light cycle oil stream wherein the light cycle oil stream has a boiling range from 250° F. to 650° F.
11. The process of claim 10 , further comprising the steps of regenerating the catalyst for reuse, repeating steps a through c, and reusing the catalyst in step b.