Fluidized bed reactor system

Patent metadata

Field	Value
Publication number	US-9687806-B2
Application number	US-201314442115-A
Country	US
Kind code	B2
Filing date	Nov 11, 2013
Priority date	Nov 12, 2012
Publication date	Jun 27, 2017
Grant date	Jun 27, 2017

Abstract

A fluidized bed reactor system with one or more fluidized bed reactors for carrying out chemical or physical reactions, at least one reactor thereof being a rapidly fluidized reactor to be operated as a circulating fluidized bed and having, at the upper end, a fluid outlet, a particle separator, and a particle line connected thereto for the purpose of feeding back separated fluidized bed particles into the same or a further reactor, wherein, at least one rapidly fluidized reactor has one or more flow control devices producing reaction zones that are separate from one another, and in order to control the flow conditions into the reaction zones, one or more of these flow control devices are specifically adjustable from outside of the system.

First claim

The invention claimed is:

1. A fluidized-bed reactor system, comprising:
a fast fluidized bed reactor configured to carry out chemical or physical reactions,
wherein the fast fluidized bed reactor is configured to be operated as a circulating fluidized bed,
wherein the fast fluidized bed reactor comprises, at the upper end, a fluid outlet, a particle separator, and a particle line connected so as to feed back separated fluidized-bed particles into the same or another reactor,
wherein one or more flow controllers are provided in at least one fast fluidized reactor in order to create separate reaction zones therein, and
wherein one or more of the flow controllers are accurately adjustable from outside of the system to control flow conditions in the reaction zones while the fast fluidized bed reactor is in operation.

2. The system of claim 1 , wherein a horizontal cross-sectional area of the at least one fast fluidized reactor at a height of an accurately adjustable flow controller, is changeable by adjusting the flow controller.

3. The system of claim 1 , wherein at least one of the accurately adjustable flow controllers can be adjusted by hand.

4. The system of claim 1 , wherein at least one of the accurately adjustable flow controllers is driven by a motor.

5. The system of claim 1 , wherein the accurately adjustable flow controllers are supported rotatably, swivellably, slidably, or a combination thereof, on or in a respective reactor wall.

6. The system of claim 1 , further comprising:
an accurately adjustable and locally fixed flow controller.

7. The system of claim 1 , comprising:
at least two reactors, both implemented as fast fluidized reactors,
wherein a first particle line connects a first reactor particle separator with the second reactor,
wherein a second particle line of a second reactor particle separator leads back into the second reactor,
wherein a third particle line leads back into the first reactor,
wherein at least the second reactor comprises an accurately adjustable flow controller.

8. The system of claim 7 , wherein each of the two reactors comprise an accurately adjustable flow controller.

9. The system of claim 1 , at least one particle line joins a respective reactor above at least one flow controller.

10. The system of claim 7 , wherein two of the reactors are additionally connected to each other by a line substantially transporting only gas.

11. The system of claim 1 , wherein at least one of the flow controllers is adjustable horizontally.

12. The system of claim 1 , wherein at least one of the flow controllers is adjustable vertically.

13. The system of claim 1 , wherein at least one of the flow controllers is adjustable horizontally and vertically.

14. The system of claim 7 , wherein the third particle line connects the two reactors in their lower halves.

15. The system of claim 7 , wherein the third particle line connects the two reactors in their lower thirds.

16. The system of claim 7 , wherein the third particle line connects the two reactors in their lower quarters.

17. The system of claim 1 , comprising:
an accurately adjustable flow controller in each reactor.

18. The system of claim 1 , comprising:
an accurately adjustable flow controller in two reactors.

19. The system of claim 1 , comprising:
two or more fast fluidized bed reactors, each comprising a separate gas chamber.

20. The system of claim 1 , wherein the adjustable flow controller is arranged on or in a fast fluidized bed reactor wall.

Assignees

• Univ Wien Tech

Inventors

• Schmid Johannes
• Proell Tobias
• Hofbauer Hermann

Classifications

• B01J8/1809 Primary

  Controlling processes · CPC title

• F27B15/10

  Arrangements of air or gas supply devices · CPC title

• B01J8/34

  with stationary packing material in the fluidised bed, e.g. bricks, wire rings, baffles · CPC title

• B01J8/0055

  using cyclones · CPC title

• B01J2208/00548

  Flow · CPC title