# US 10,370,603 B2 · Process to upgrade partially converted vacuum residua

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- Number: US 10,370,603 B2
- Document ID: US10370603B2
- Status: Granted
- Kind: B2
- Application number: 15/522,342
- Filed: 2015-10-27
- Published: 2017-11-23
- Granted: 2019-08-06
- Earliest claimed: 2014-11-21
- Assignees: Lummus Technology Inc.
- Applicants: Lummus Technology LLC
- Inventors: Ujjal K. Mukherjee; Mario C. Baldassari; Marvin I. Greene
- Web page: https://patentgrep.com/patent/US10370603B2

## CPC

- C10G 67/049: {The hydrotreatment being a hydrocracking}
- C10G 7/06: Vacuum distillation
- C10G 21/003: {Solvent de-asphalting}
- C10G 47/00: Cracking of hydrocarbon oils, in the presence of hydrogen or hydrogen- generating compounds, to obtain lower boiling fractions (C10G15/00 takes precedence; destructive hydrogenation of non-melting solid carbonaceous or similar materials C10G1/06)
- C10G 65/14: plural parallel stages only
- C10G 67/00: Treatment of hydrocarbon oils by at least one hydrotreatment process and at least one process for refining in the absence of hydrogen only
- C10G 67/0454: {Solvent desasphalting}
- C10J 3/00: Production of combustible gases containing carbon monoxide from solid carbonaceous fuels (destructive distillation processes C10B)
- C10G 2300/1077: Vacuum residues
- C10G 2300/206: Asphaltenes
- C10J 2200/00: Details of gasification apparatus
- Y02P 20/52: using catalysts, e.g. selective catalysts
- C10G: CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION (cracking to hydrogen or synthesis gas C01B; cracking or pyrolysis of hydrocarbon gases to individual hydrocarbons or mixtures thereof of definite or specified constitution C07C; cracking to cokes C10B); RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10J: PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES (synthesis gas from liquid or gaseous hydrocarbons C01B; underground gasification of minerals E21B43/295); CARBURETTING AIR OR OTHER GASES
- Y02P: CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS

## Abstract

Processes for upgrading partially converted vacuum residua hydrocarbon feeds are disclosed. The upgrading processes may include: steam stripping the partially converted vacuum residua to generate a first distillate and a first residuum; solvent deasphalting the first residuum stream to generate a deasphalted oil and an asphaltenes fraction; vacuum fractionating the deasphalted oil to recover a deasphalted gas oil distillate and a heavy deasphalted residuum; contacting the first distillate and the deasphalted gas oil distillate and hydrogen in the presence of a first hydroconversion catalyst to produce a product; contacting the heavy deasphalted residuum stream and hydrogen in the presence of a second hydroconversion catalyst to produce an effluent; and fractionating the effluent to recover a hydrocracked atmospheric residua and a hydrocracked atmospheric distillate.

## Claims

### Claim 1

A process for upgrading a partially converted vacuum residua, comprising:
stripping the partially converted vacuum residua utilizing a non-reactive stripping medium to generate a first distillate and a first residuum;
solvent deasphalting the first residuum to generate a deasphalted oil and an asphaltenes fraction;
vacuum fractionating the deasphalted oil to recover a deasphalted gas oil distillate and a heavy deasphalted residuum;
contacting the first distillate and the deasphalted gas oil distillate and hydrogen in the presence of a first hydroprocessing catalyst to produce a first hydroprocessing effluent;
contacting the heavy deasphalted residuum and hydrogen in the presence of a second hydroconversion catalyst to produce a second hydroprocessing effluent; and
separating the second hydroprocessing effluent to recover a hydrocracked vapor and a hydrocracked liquid.

### Claim 2 (depends on 1)

The process of claim 1, wherein the partially converted vacuum residua comprises an effluent from an upstream conversion process.

### Claim 3 (depends on 1)

The process of claim 1, further comprising solvent deasphalting the hydrocracked liquid with the first residuum.

### Claim 4 (depends on 1)

The process of claim 1, further comprising separating the partially converted vacuum residua into a partially converted vacuum residua liquid and a partially converted vacuum residua vapor.

### Claim 5 (depends on 4)

The process of claim 4, further comprising contacting the partially converted vacuum residua vapor in the presence of the first hydroconversion catalyst at conditions of temperature and pressure to produce the first hydroprocessing effluent.

### Claim 6 (depends on 4)

The process of claim 4, further comprising combining the partially converted vacuum residua vapor with the deasphalted gas oil distillate.

### Claim 7 (depends on 1)

The process of claim 1, wherein contacting the first distillate and the deasphalted gas oil distillate and hydrogen in the presence of a first hydroprocessing catalyst further comprises contacting the hydrocracked liquid with the first hydroconversion catalyst.

### Claim 8 (depends on 4)

The process of claim 4, wherein contacting the first distillate and the deasphalted gas oil distillate and hydrogen in the presence of a first hydroprocessing catalyst further comprises contacting the hydrocracked liquid, the deasphalted gas oil distillate, and the partially converted vacuum residua vapor, or combinations thereof, with the first hydroconversion catalyst.

### Claim 9 (depends on 2)

The process of claim 2, wherein the upstream conversion process comprises a hydrocracking unit, a vac resid coking unit, a hydrothermolysis unit, a hydropyrolysis unit, a pyrolysis unit, an oil shale retorting unit, a biomass pyrolysis unit, a biomass hydropyrolysis unit, a biomass hydrothermolysis unit, a tar sands extraction unit, a steam assisted gravity drainage process, a toe to heel air injection process, an in situ petroleum extraction process, or a combination thereof.

### Claim 10 (depends on 1)

The process of claim 1, wherein the first hydroconversion catalyst is within a fixed bed and the second hydroconversion catalyst is within an ebullated bed reactor.

### Claim 11 (depends on 1)

The process of claim 1, wherein the first hydroconversion catalyst is within a fixed bed and the second hydroconversion catalyst is within a slurry reactor.

### Claim 12 (depends on 1)

The process of claim 1, wherein stripping further comprises stripping the hydrocracked vapor.

### Claim 13

A system for upgrading partially converted residuum hydrocarbons, the system comprising:
a mass transfer device to strip a partially converted residuum hydrocarbon stream into a first distillate stream and a first residuum stream;
a solvent deasphalting unit for recovering a deasphalted oil stream and an asphaltenes stream from the first residuum stream;
a vacuum fractionation unit to fractionate the deasphalted oil stream to recover a deasphalted gas oil stream and a heavy deasphalted residuum stream;
an ebullated bed hydroconversion reactor system for contacting the heavy deasphalted residuum stream and hydrogen with a first hydroconversion catalyst to produce a first effluent;
a separation unit to recover a hydrocarbon liquid stream and a hydrocarbon vapor stream;
a fixed bed hydroconversion reactor system for contacting at least one of the first distillate stream, the deasphalted gas oil stream, and the hydrocarbon liquid stream to produce a second effluent.

### Claim 14 (depends on 13)

The system of claim 13, further comprising a partial upgrading conversion unit to convert a residuum stream to the partially converted residuum stream.

### Claim 15 (depends on 14)

The system of claim 14, wherein the partial upgrading conversion unit is selected from the group consisting of a hydrocracking unit, a vac resid coking unit, a hydrothermolysis unit, a hydropyrolysis unit, a pyrolysis unit, an oil shale retorting unit, a biomass pyrolysis unit, a biomass hydropyrolysis unit, a biomass hydrothermolysis unit, a tar sands extraction unit, a steam assisted gravity drainage process, a toe to heel air injection process, an in situ petroleum extraction processes, or a combination thereof.

### Claim 16 (depends on 15)

The system of claim 15, wherein the hydrocracking unit comprises an ebullated bed, a fixed-bed or a moving-bed hydrocracking unit.

### Claim 17 (depends on 13)

The system of claim 13, further comprising a first high temperature high pressure separator upstream of the mass transfer device to produce the partially converted residuum hydrocarbon stream.

### Claim 18 (depends on 17)

The system of claim 17, wherein a vapor fraction from the first high temperature high pressure separator is fed to the fixed bed hydroconversion reactor system.

### Claim 19 (depends on 13)

The system of claim 13, wherein the separation unit is a second high pressure high temperature separator unit.

### Claim 20 (depends on 19)

The system of claim 19, wherein the vapor fraction from the second high temperature high pressure separator is fed to the fixed bed hydroconversion reactor system.

### Claim 21 (depends on 19)

The system of claim 19, wherein the liquid fraction from the second high temperature high pressure separator is fed to the mass transfer unit.

### Claim 22 (depends on 19)

The system of claim 19, wherein the liquid fraction from the second high temperature high pressure separator is fed to the solvent deasphalting unit.

### Claim 23

A process for upgrading a partially converted vacuum residua, comprising:
stripping with a mass transfer device the partially converted vacuum residua to generate a first distillate and a first residuum;
deasphalting with a solvent deasphalting unit the first residuum to generate a deasphalted oil and an asphaltenes fraction;
fractionating with a vacuum fractionation unit the deasphalted oil to recover a deasphalted gas oil distillate and a heavy deasphalted residuum;
contacting the first distillate and the deasphalted gas oil distillate and hydrogen in the presence of a first hydroprocessing catalyst in an fixed bed hydroconversion reactor to produce a first hydroprocessing effluent;
contacting the heavy deasphalted residuum and hydrogen in the presence of a second hydroconversion catalyst in a ebullated bed hydroconversion reactor system to produce a second hydroprocessing effluent; and
separating with a high pressure high temperature separator unit the second hydroprocessing effluent to recover a hydrocracked residua and a hydrocracked distillate.
