Solid/heat-transfer gas reactor comprising gas diffusers with reduced risks of blocking

Patent metadata

Field	Value
Publication number	US-9433910-B2
Application number	US-201214113958-A
Country	US
Kind code	B2
Filing date	Apr 27, 2012
Priority date	May 3, 2011
Publication date	Sep 6, 2016
Grant date	Sep 6, 2016

Abstract

A module for a solid/heat-transfer gas reactor, including a plurality of diffusers each including a top portion supporting the solid reagent, and a portion for diffusing reactive/heat-transfer gas, situated under the top portion.

First claim

The invention claimed is:

1. A solid/heat-transfer gas reactor comprising:
a plurality of modules stacked in a vertical direction, comprising solid reagents configured to have the heat-transfer gas pass through them;
wherein each module comprises a plurality of diffusers each including a top portion supporting one of the solid reagents, and a portion for diffusing reactive/heat-transfer gas, situated under the top support portion, and comprising a lateral gas-distribution channel, and a lateral gas-collection channel,
each module further comprising a double wall between which the gas is configured to circulate before entering through the diffusers, the diffusers projecting upwards from a top wall of the double wall, and wherein any two directly consecutive modules in the stack define a housing cavity receiving one of the solid reagents carried at least partially by the diffusers arranged in the cavity,
the lateral gas-distribution channels of the stacked modules forming together a vertical distributor supplying gas to each of spaces defined between two walls of the double walls, and
wherein the lateral gas-collection channels of the stacked modules form together a vertical collector collecting the gas coming from each of the housing cavities.

2. A reactor according to claim 1 , wherein, in vertical projection onto a horizontal plane, the top portion supporting the solid reagents entirely covers the gas-diffusion portion.

3. A reactor according to claim 1 , wherein each diffuser takes a form of a cylindrical stud of which at least part of the lateral surface constitutes the gas-diffusion portion.

4. A reactor according to claim 1 , wherein, on each module, the diffusers are provided with a density of 75 to 150 diffusers/m 2 .

5. A reactor according to claim 1 , wherein each module is produced from three bent metal sheets fixed to one another, and by the diffusers.

6. A reactor according to claim 1 , further comprising means for bringing gas into the reactor, and means for discharging gas out of the reactor.

7. A solid/heat-transfer gas reaction method implemented by a reactor according to claim 6 , comprising:
placing the solid reagents in each of the housing cavities;
introducing the heat-transfer reactive gas into the distributor by gas-feed means; and
after the gas passes through the solid reagents, the gas enters a collector of the reactor before being discharged from the collector by the gas-discharge means.

8. A method according to claim 7 , wherein the solid reagents are unstructured pure granular reagents.

9. A method according to claim 7 , wherein solid reagents of different natures are arranged in the housing cavities of the reactor.

Assignees

• Wyttenbach Joel
• Papillon Philippe
• Tanguy Gwennyn
• Commissariat Energie Atomique

Inventors

• Wyttenbach Joel
• Papillon Philippe
• Tanguy Gwennyn

Classifications

• B01J8/0285

  Heating or cooling the reactor (for tubular reactors in furnaces B01J8/062) · CPC title

• B01J15/005

  in the presence of catalytically active bodies, e.g. porous plates · CPC title

• B01J19/249

  Plate-type reactors · CPC title

• B01J2208/00707

  Fouling · CPC title

• B01J2208/0084

  inside the bed, e.g. baffles · CPC title