# US 9,433,910 B2 · Solid/heat-transfer gas reactor comprising gas diffusers with reduced risks of blocking

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- Number: US 9,433,910 B2
- Document ID: US9433910B2
- Status: Granted
- Kind: B2
- Application number: 14/113,958
- Filed: 2012-04-27
- Published: 2014-02-20
- Granted: 2016-09-06
- Earliest claimed: 2011-05-03
- Assignees: Commissariat A L'energie Atomique Et Aux Energies Alternatives
- Applicants: Joel Wyttenbach; Philippe Papillon; Gwennyn Tanguy
- Inventors: Joel Wyttenbach; Philippe Papillon; Gwennyn Tanguy
- Web page: https://patentgrep.com/patent/US9433910B2

## CPC

- B01J 8/0242: {the fluid flow within the bed being predominantly vertical}
- B01J 8/0207: {the fluid flow within the bed being predominantly horizontal}
- B01J 8/0278: {Feeding reactive fluids (for solid material B01J8/0015)}
- B01J 8/0285: {Heating or cooling the reactor (for tubular reactors in furnaces B01J8/062)}
- B01J 8/0292: {with stationary packing material in the bed, e.g. bricks, wire rings, baffles}
- B01J 15/00: Chemical processes in general for reacting gaseous media with non-particulate solids, e.g. sheet material; Apparatus specially adapted therefor (B01J19/08 takes precedence)
- B01J 15/005: {in the presence of catalytically active bodies, e.g. porous plates}
- B01J 19/249: {Plate-type reactors}
- B01J 2208/00707: Fouling
- B01J 2208/0084: inside the bed, e.g. baffles
- B01J 2208/00911: Sparger-type feeding elements
- B01J 2219/2453: Plates arranged in parallel
- B01J 2219/2458: Flat plates, i.e. plates which are not corrugated or otherwise structured, e.g. plates with cylindrical shape
- B01J 2219/247: Feeding means for the reactants
- B01J 2219/2481: Catalysts in granular from between plates
- B01J 2219/2496: Means for assembling modules together, e.g. casings, holders, fluidic connectors
- F28C 3/12: the heat-exchange medium being a particulate material and a gas, vapour, or liquid
- B01J: CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- F28C: HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA COME INTO DIRECT CONTACT WITHOUT CHEMICAL INTERACTION (safety devices in general F16P; fluid heaters having heat generating means F24H; with an intermediate heat-transfer medium coming into direct contact with heat-exchange media F28D15/00 - F28D19/00; details of heat-exchange apparatus of general application F28F)

## 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.

## Claims

### Claim 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.

### Claim 2 (depends on 1)

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.

### Claim 3 (depends on 1)

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.

### Claim 4 (depends on 1)

A reactor according to claim 1, wherein, on each module, the diffusers are provided with a density of 75 to 150 diffusers/m2.

### Claim 5 (depends on 1)

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

### Claim 6 (depends on 1)

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

### Claim 7 (depends on 6)

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.

### Claim 8 (depends on 7)

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

### Claim 9 (depends on 7)

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