Reactor comprising radially placed cooling plates and methods of using same

Patent metadata

Field	Value
Publication number	US-10525427-B2
Application number	US-201515521354-A
Country	US
Kind code	B2
Filing date	Oct 29, 2015
Priority date	Oct 30, 2014
Publication date	Jan 7, 2020
Grant date	Jan 7, 2020

Abstract

A reactor for hydrocarbon production that separates wax reaction products from lightweight gaseous reaction products. The reactor has a housing, a catalyst bed, a product recovery zone, and a stripping zone. The catalyst bed can be provided in multi-tubular and other fixed bed configurations. The stripping zone receives light-weight gas reaction products from the product recovery zone, while a gas outlet of the housing receives non-lightweight gaseous hydrocarbon reaction products from the product recovery zone. A wax outlet of the housing receives wax products from the product recovery zone.

First claim

What is claimed is:

1. A reactor for producing a desired product, comprising:
a housing having an outer portion, a central portion, and a longitudinal axis passing through the central portion, the outer portion being radially spaced from the central portion, the housing defining a circumferential coolant inlet channel within the outer portion of the housing; and a circumferential coolant outlet channel within the central portion of the housing, the coolant inlet channel being configured to receive at least one coolant material;
a plurality of coolant plates circumferentially spaced within the housing, wherein each coolant plate of the plurality of coolant plates extends radially between the coolant inlet channel and the coolant outlet channel, wherein each coolant plate defines a plurality of radial coolant channels that extend radially between, and in fluid communication with, the coolant inlet channel and the coolant outlet channel; and
a catalyst bed extending circumferentially within the housing and defined between the coolant inlet channel and the coolant outlet channel, the catalyst bed being configured to receive at least one catalyst,
wherein the housing defines a gas inlet positioned in fluid communication with the catalyst bed, the gas inlet being configured to deliver reactant gas to the catalyst bed,
wherein the housing defines a product collection area in fluid communication with the catalyst bed, wherein the product collection area is configured to receive the desired product following reaction between the gas and the at least one catalyst within the catalyst bed, wherein the product collection area is positioned in communication with first and second product outlets, and
wherein the housing defines a base portion positioned in fluid communication with the product collection area and the first and second product outlets, wherein the base portion of the housing defines the second product outlet.

2. The reactor of claim 1 , wherein each coolant plate comprises a plurality of adjoined plate segments, and wherein each plate segment defines a corresponding radial coolant channel.

3. The reactor of claim 2 , wherein each respective plate segment of each coolant plate is welded to its adjoining plate segments.

4. The reactor of claim 1 , wherein the plurality of coolant plates span radially across the catalyst bed, and wherein the gas inlet is configured to permit radial flow of gas into the catalyst bed.

5. The reactor of claim 1 , wherein the plurality of coolant plates are substantially evenly circumferentially spaced within the housing.

6. The reactor of claim 1 , further comprising at least one secondary coolant inlet spaced radially inwardly from the coolant inlet channel, each secondary coolant inlet being positioned in fluid communication with at least one coolant plate of the plurality of coolant plates.

7. The reactor of claim 1 , wherein the housing has an outer wall, a first circumferential inner wall, a second circumferential inner wall, and a first perforated circumferential wall, the first circumferential inner wall being spaced radially outwardly from the second circumferential inner wall, the perforated circumferential wall being positioned radially between the first circumferential inner wall and the second circumferential inner wall, the outer wall and the first circumferential inner wall cooperating to define the circumferential coolant inlet channel, the second circumferential inner wall defining the circumferential coolant outlet channel, wherein the catalyst bed is defined between the first circumferential inner wall and the first perforated circumferential wall, wherein the perforated circumferential wall of the housing is configured to permit radial passage of the desired product, and wherein the perforated circumferential wall cooperates with the second circumferential inner wall to define the product collection area.

8. The reactor of claim 1 , wherein the first product outlet is configured to receive light-weight products from the product collection area, and wherein the second product outlet is configured to receive heavier products from the product collection area.

9. The reactor of claim 1 , wherein the housing has an outer wall, a first circumferential inner wall, a second circumferential inner wall, a first perforated circumferential wall, and a second perforated circumferential wall, the first inner wall being radially spaced from the second inner wall, the first perforated circumferential wall being positioned radially between the first circumferential inner wall and the second circumferential inner wall, the second perforated circumferential wall being positioned radially between the first perforated circumferential wall and the second circumferential inner wall, the outer wall and the first circumferential inner wall cooperating to define the coolant inlet channel, the second inner wall defining the coolant outlet channel, wherein the catalyst bed is defined between the first perforated circumferential wall and the second perforated circumferential wall,
wherein the first perforated circumferential wall cooperates with the first circumferential inner wall to define the gas inlet, the gas inlet comprising a channel configured to receive at least one gas, wherein the first perforated circumferential wall is configured to permit radial passage of the at least one gas into the catalyst bed,
wherein the second perforated circumferential wall cooperates with the second circumferential inner wall to define the product collection area, and wherein the second perforated circumferential wall of the housing is configured to permit radial passage of the desired product into the product collection area.

10. The reactor of claim 9 , wherein upon delivery of the gas into the gas inlet channel, the catalyst bed is configured to receive the gas from the gas inlet channel, and wherein the plurality of coolant plates are configured to provide cooling to the catalyst bed during the reaction between the gas and the catalyst within the catalyst bed.

11. The reactor of claim 9 , wherein the first product outlet is defined by a third inner wall positioned within and radially spaced from the second inner wall of the housing, and wherein the first product outlet extends upwardly from the base portion of the housing.

12. A reactor for producing a desired product, comprising:
a housing having an outer wall, a first circumferential inner wall, a second circumferential inner wall, a perforated circumferential wall, and a longitudinal axis, the first circumferential inner wall being spaced radially outwardly from the second circumferential inner wall, the perforated circumferential wall being positioned radially between the first circumferential inner wall and the second circumferential inner wall, the outer wall and the first circumferential inner wall cooperating to define a coolant inlet channel, the coolant inlet channel being configured to receive at least one coolant material, the second circumferential inner wall defining a coolant outlet channel;
a catalyst bed extending circumferentially within the housing and defined between the first circumferential inner wall and the perforated circumferential wall, the catalyst bed being configured to receive at least one catalyst; and
a plurality of coolant plates, each coolant plate of the plurality of coolant plates spanning radially across the catalyst bed between the coolant inlet channel and the coolant outlet channel, each coolant plate defining a plurality of radial coolant channels positioned in fluid communication with the coolant inlet channel and the coolant outlet channel, wherein the plurality of radial coolant ch

Assignees

• Sabic Global Technologies Bv

Inventors

• Nawaz Zeeshan
• Bashir Mubarik Ali
• Karim Khalid

Classifications

• C10G2/31

  thermal, non catalytic conversion · CPC title

• B01J2208/0015

  Plates; Cylinders · CPC title

• B01J8/0257

  in a cylindrical annular shaped bed · CPC title

• B01J8/0214

  in a cylindrical annular shaped bed · CPC title

• B01J8/02 Primary

  with stationary particles, e.g. in fixed beds · CPC title