# US 10,766,013 B2 · Apparatuses for mixing of staged methanol injection

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- Number: US 10,766,013 B2
- Document ID: US10766013B2
- Status: Granted
- Kind: B2
- Application number: 16/735,104
- Filed: 2020-01-06
- Published: 2020-05-07
- Granted: 2020-09-08
- Earliest claimed: 2017-12-20
- Assignees: Uop LLC
- Applicants: Uop LLC
- Inventors: Richard A. Johnson, II; Joseph A. Montalbano; John J. Senetar
- Web page: https://patentgrep.com/patent/US10766013B2

## CPC

- B01J 8/1818: {Feeding of the fluidising gas (B01J8/44 takes precedence)}
- B01J 4/002: {Nozzle-type elements (nozzle-type reactors B01J19/26)}
- B01J 4/005: {provided with baffles}
- C07C 2/72: Addition to a non-aromatic carbon atom of hydrocarbons containing a six-membered aromatic ring
- C07C 2/864: {the non-hydrocarbon is an alcohol}
- C07C 15/08: Xylenes
- B01J: CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- C07C: ACYCLIC OR CARBOCYCLIC COMPOUNDS

## Abstract

This present disclosure relates to apparatuses for methylation of aromatics in an aromatics complex for producing a xylene isomer product. More specifically, the present disclosure relates to apparatuses for producing para-xylene by the selective methylation of toluene and/or benzene in an aromatics complex using processed toluene instead of crude toluene.

## Claims

### Claim 1

A riser reactor, comprising:
a cylindrical riser comprising an outer wall and an inner wall;
at least one baffle affixed to the inner wall extending into the riser; and
at least one distributor configured to inject methanol into the riser, wherein the at least one distributor is located above the at least one baffle, below the at least one baffle, extends through the at least one baffle and into a different radial location within the riser reactor, or a combination thereof.

### Claim 2 (depends on 1)

The riser reactor of claim 1, wherein the at least one baffle extends around the entire inner wall of the riser reactor.

### Claim 3 (depends on 1)

The riser reactor of claim 1, wherein the at least one distributor is angled from 30 degrees to 120 degrees relative to the inner wall.

### Claim 4 (depends on 1)

The riser reactor of claim 1, further comprising a second distributor, wherein the distributors are located at two different axial locations within the riser reactor.

### Claim 5 (depends on 1)

The riser reactor of claim 1, wherein there are at least two rows of baffles.

### Claim 6 (depends on 1)

The riser reactor of claim 1, further comprising a plurality of baffles and wherein the baffles are arranged symmetrically around the inner wall of the riser.

### Claim 7 (depends on 1)

The riser reactor of claim 1, further comprising a plurality of baffles and wherein baffles cover substantially a circumference of the riser.

### Claim 8 (depends on 1)

The riser reactor of claim 1, wherein the riser reactor is a toluene methylation riser reactor.