초록 ▼

One exemplary embodiment can include a slurry hydrocracking process. The process can include combining one or more hydrocarbons and a slurry hydrocracking catalyst as a feed to a slurry hydrocracking reaction zone, fractionating an effluent from the slurry hydrocracking reaction zone, separating the

One exemplary embodiment can include a slurry hydrocracking process. The process can include combining one or more hydrocarbons and a slurry hydrocracking catalyst as a feed to a slurry hydrocracking reaction zone, fractionating an effluent from the slurry hydrocracking reaction zone, separating the pitch from at least a portion of the slurry hydrocracking catalyst, and recycling the suspension to the slurry hydrocracking reaction zone. The slurry hydrocracking catalyst may include a support. Fractionating the effluent may provide a light vacuum gas oil, a heavy vacuum gas oil, and a mixture comprising a pitch and the slurry hydrocracking catalyst. Generally, the separated slurry hydrocracking catalyst is comprised in a suspension.

대표청구항 ▼

1. A slurry hydrocracking process, comprising: A) combining one or more hydrocarbons and a slurry hydrocracking catalyst comprising a support as a feed to a slurry hydrocracking reaction zone;B) fractionating an effluent from the slurry hydrocracking reaction zone to provide a light vacuum gas oil,

1. A slurry hydrocracking process, comprising: A) combining one or more hydrocarbons and a slurry hydrocracking catalyst comprising a support as a feed to a slurry hydrocracking reaction zone;B) fractionating an effluent from the slurry hydrocracking reaction zone to provide a light vacuum gas oil, a heavy vacuum gas oil, and a mixture comprising a pitch and the slurry hydrocracking catalyst;C) separating the pitch from at least a portion of the slurry hydrocracking catalyst to obtain a filtrate comprising the pitch and a retentate comprising the slurry hydrocracking catalyst;D) backwashing the retentate with at least a part of the heavy vacuum gas oil wherein the separated slurry hydrocracking catalyst is comprised in a suspension; andE) recycling the suspension to the slurry hydrocracking reaction zone. 2. The process according to claim 1, wherein the suspension comprises the heavy vacuum gas oil and the slurry hydrocracking catalyst wherein the slurry hydrocracking catalyst comprises at least 50%, by weight, of the slurry hydrocracking catalyst recovered from the mixture. 3. The process according to claim 1, further comprising recycling the retentate to the slurry hydrocracking reaction zone. 4. The process according to claim 1, wherein the slurry hydrocracking catalyst comprises particles having a mean particle diameter of about 2-about 100 microns. 5. The process according to claim 1, further comprising sizing bauxite for obtaining the particles. 6. The process according to claim 1, further comprising separating the effluent from the slurry hydrocracking reaction zone to obtain a first fluid stream comprising a naphtha and a second fluid stream comprising the light vacuum gas oil, the heavy vacuum gas oil, and the pitch. 7. The process according to claim 1, further comprising vacuum fractionating an atmospheric bottom stream to obtain a vacuum bottom stream provided as the one or more hydrocarbons comprised in the feed. 8. The process according to claim 7, further comprising fractionating a crude oil to obtain the atmospheric bottom stream. 9. The process according to claim 1, wherein the support comprises at least one of alumina, silica, titania, one or more aluminosilicates, magnesia, bauxite, coal and petroleum coke. 10. The process according to claim 1, wherein the support comprises at least one of titania, magnesia, bauxite, coal and petroleum coke. 11. The process according to claim 1, wherein the slurry hydrocracking catalyst comprises a catalytic active metal, in turn, comprising at least one of iron, molybdenum, nickel, and vanadium or a sulfide thereof. 12. The process according to claim 11, wherein the slurry hydrocracking catalyst comprises about 0.01- about 30%, by weight, of the catalytic active metal based on the total weight of the catalyst. 13. The process according to claim 1, wherein the slurry hydrocracking catalyst comprises a catalytic active metal, in turn, comprising vanadium or a sulfide thereof. 14. A process for recycling a slurry hydrocracking catalyst comprising one or more particles, comprising: A) combining the catalyst particles with a vacuum bottom stream to form a feed;B) passing the feed into a slurry hydrocarbon reaction zone to create an effluent;C) fractionating at least a portion of the effluent to obtain a mixture and heavy vacuum gas oil;D) filtering the catalyst particles from the mixture;E) backwashing with at least a part of the heavy vacuum gas oil to remove a retentate; andF) recycling the catalyst particles directly to the slurry hydrocracking reaction zone. 15. The process according to claim 14, further comprising recycling the retentate to the slurry hydrocracking reaction zone. 16. The process according to claim 14, wherein the catalyst particles have a sufficient size to allow filtering. 17. The process according to claim 14, wherein the catalyst particles have a mean particle diameter of about 2- about 100 microns. 18. A process for recycling a slurry hydrocracking catalyst comprising one or more particles, comprising: A) combining the catalyst particles with a vacuum bottom stream to form a feed;B) passing the feed into a slurry hydrocarbon reaction zone to create an effluent;C) fractionating at least a portion of the effluent to obtain a mixture and heavy vacuum gas oil;D) filtering the catalyst particles from the mixture wherein the catalyst particles comprise: 1) a support comprising at least one of alumina, silica, titania, one or more aluminosilicates, magnesia, bauxite, coal and petroleum coke; and2) a catalytic active metal comprising at least one of iron, molybdenum, nickel, and vanadium or a sulfide thereof;E) backwashing with at least a part of the heavy vacuum gas oil to remove a retentate; andF) recycling the catalyst particles directly to the slurry hydrocracking reaction zone. 19. The process according to claim 18, wherein the support comprises at least one of titania, magnesia, bauxite, coal and petroleum coke and the catalytic active metal comprises vanadium or a sulfide thereof.