Methods for designing scaled-up fluid catalytic reactors

Patent metadata

Field	Value
Publication number	US-10507448-B2
Application number	US-201716346626-A
Country	US
Kind code	B2
Filing date	Oct 30, 2017
Priority date	Nov 2, 2016
Publication date	Dec 17, 2019
Grant date	Dec 17, 2019

Abstract

According to one or more embodiments of the present disclosure, a fluid catalytic reactor may be scaled-up by a method that includes one or more of constructing, operating, observing, or obtaining data related to a template fluid catalytic reactor comprising a template riser, a template lower reactor portion, and a template transition portion connecting the template riser and the template lower reactor portion. The method may further include one or more of constructing or operating a scaled-up fluid catalytic reactor based on the template fluid catalytic reactor.

First claim

The invention claimed is:

1. A method for scaling-up a fluid catalytic reactor, the method comprising:
one or more of constructing, operating, observing, or obtaining data related to a template fluid catalytic reactor comprising a template riser, a template lower reactor portion, and a template transition portion connecting the template riser and the template lower reactor portion;
one or more of constructing or operating a scaled-up fluid catalytic reactor based on the template fluid catalytic reactor, the scaled-up fluid catalytic reactor comprising a scaled-up riser, a scaled-up lower reactor portion, and a scaled-up transition portion connecting the scaled-up riser and the scaled-up lower reactor portion, wherein:
the ratio of the cross-sectional area of the scaled-up riser to the cross-sectional area of the template riser is from 80% to 120% of a scale-up factor;
the ratio of the cross-sectional area of the scaled-up lower reactor portion to the cross-sectional area of the template lower reactor portion is from 80% to 120% of the scale-up factor;
the scale-up factor is at least 1.3; and
the height of the scaled-up transition portion is at least 70% of the width of the scaled-up riser and from 70% to 130% of the height of the template transition portion.

2. The method of claim 1 , wherein the scale-up factor is at least 2.

3. The method of claim 1 , wherein the scale-up factor is from 1.3 to 5.

4. The method of claim 1 , wherein:
the ratio of the cross-sectional area of the scaled-up riser to the cross-sectional area of the template riser is from 95% to 105% of the scale-up factor; and
the ratio of the cross-sectional area of the scaled-up lower reactor portion to the cross-sectional area of the template lower reactor portion is from 95% to 105% of the scale-up factor.

5. The method of any claim 1 , wherein the height of the scaled-up transition portion is at least 95% of the width of the scaled-up riser.

6. The method of claim 1 , wherein the method comprises constructing or operating the template fluid catalytic reactor.

7. The method of claim 1 , wherein the method comprises observing or obtaining data related to the template fluid catalytic reactor.

8. The method of claim 1 , wherein the scaled-up transition portion comprises a frustum shape.

9. The method of claim 1 , wherein the scaled-up transition portion comprises a conical frustum shape.

10. A method for scaling-up a fluid catalytic reactor, the method comprising:
determining a size for a scaled-up fluid catalytic reactor that comprises a scaled-up riser, a scaled-up lower reactor portion, and a scaled-up transition portion connecting the scaled-up riser and the scaled-up lower reactor portion, wherein determining the size of the scaled-up fluid catalytic reactor comprises:
determining within 20% of a cross-sectional area and width of the scaled-up riser;
determining within 20% of a cross-sectional area of the scaled-up lower reactor portion; and
determining within 20% of a height of the scaled-up transition portion;

one or more of constructing or operating a template fluid catalytic reactor comprising a template riser, a template lower reactor portion, and a template transition portion connecting the template riser and the template lower reactor portion, wherein:
the ratio of the determined cross-sectional area of the scaled-up riser to the cross-sectional area of the template riser is from 80% to 120% of a scale-down factor;
the ratio of the determined cross-sectional area of the scaled-up lower reactor portion to the cross-sectional area of the template lower reactor portion is from 80% to 120% of the scale-down factor;
the scale-down factor is at least 1.3; and
the height of the template transition portion is at least 70% of the determined width of the scaled-up riser.

11. The method of claim 10 , further comprising constructing or operating the scaled-up fluid catalytic reactor.

12. The method of claim 10 , wherein the scale-down factor is at least 2.

13. The method of claim 10 , wherein the scale-down factor is from 1.3 to 5.

14. The method of claim 10 , wherein:
the ratio of the determined cross-sectional area of the scaled-up riser to the cross-sectional area of the template riser is from 95% to 105% of the scale-down factor; and
the ratio of the determined cross-sectional area of the scaled-up lower reactor portion to the cross-sectional area of the template lower reactor portion is from 95% to 105% of the scale-down factor.

15. The method of claim 10 , wherein the height of the template transition portion is at least 95% of the determined width of the scaled-up riser.

Assignees

• Dow Global Technologies Llc

Inventors

• Pretz Matthew T
• Freireich Ben J
• Kodam Madhusudhan
• Stears Brien A

Classifications

• B01J2219/00015

  Scale-up · CPC title

• B01J8/18

  with fluidised particles {(combustion apparatus with fluidised bed in general F23C10/00; furnaces with fluidised bed F27B15/00)} · CPC title

• B01J8/24 Primary

  according to "fluidised-bed" technique (B01J8/20 takes precedence) · CPC title

• B01J8/26 Primary

  with two or more fluidised beds, e.g. reactor and regeneration installations · CPC title

• B01J8/00

  Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes · CPC title