# US 8,465,809 B2 · Multiarc discharge moving bed reactor system

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- Number: US 8,465,809 B2
- Document ID: US8465809B2
- Status: Granted
- Kind: B2
- Application number: 12/299,584
- Filed: 2007-05-04
- Published: 2009-11-26
- Granted: 2013-06-18
- Earliest claimed: 2006-05-04
- Assignees: SRI International
- Applicants: Angel Sanjurjo; Kazunori Matsumoto; Carles Colominas; Gopala Krishnan; Palitha Jayaweera; Kai-Hung Lau
- Inventors: Angel Sanjurjo; Kazunori Matsumoto; Carles Colominas; Gopala Krishnan; Palitha Jayaweera; Kai-Hung Lau
- Web page: https://patentgrep.com/patent/US8465809B2

## CPC

- B01J 8/24: according to "fluidised-bed" technique (B01J8/20 takes precedence)
- B01J 8/08: with moving particles (with fluidised particles B01J8/18)
- B01J 8/42: with fluidised bed subjected to electric current or to radiations {this sub-group includes the fluidised bed subjected to electric or magnetic fields}
- B01J 19/088: {giving rise to electric discharges (for heating purposes H05B7/00; for the production of ozone C01B13/11, H01T19/00)}
- B01J 2219/0809: employing two or more electrodes
- B01J 2219/0845: Details relating to the type of discharge
- B01J 2219/0879: Solid
- B01J 2219/0886: Gas-solid
- B01J 2219/0892: involving catalytically active material
- B01J: CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS

## Abstract

A moving bed reactor system is provided. The system comprises at least one gas inlet, a distributor, a temperature control, a plurality of electrodes, and a spark control circuit. The spark control circuit drives the electrodes and generates a multi-arc discharge when the system is loaded with particles and a gas at approximately atmospheric pressure or greater is being pumped through the system. The multi-arc discharge is useful to create activated species which may improve the rate of a chemical reaction taking place in the moving bed reactor system.

## Claims

### Claim 1

A method of generating a multi-arc discharge, comprising:
providing a mass of particles in a reaction chamber,
pumping a fluid at about atmospheric pressure or higher through the reaction chamber at a rate sufficient to form a moving bed with the mass of particles, wherein the moving bed is a fluidized bed, and
exciting electrodes at a frequency between 500 Hertz (Hz) to 3000 Hz and to predetermined voltages selected to produce the multi-arc discharge, wherein an arc of the multi-arc discharge propagates from particle to particle of the mass of particles.

### Claim 2 (depends on 1)

The method of claim 1, wherein the particles are non-conductive.

### Claim 3 (depends on 1)

The method of claim 1, wherein the fluid comprises at least two components which react with each other.

### Claim 4 (depends on 1)

The method of claim 1, wherein the fluid comprises a component which reacts with a surface of at least some particles in the mass of particles.

### Claim 5 (depends on 1)

The method of claim 1, wherein the fluid comprises a component which reacts with another moiety after having passed through the multi-arc discharge.

### Claim 6 (depends on 1)

The method of claim 1, wherein the fluid comprises a component which reacts with catalytic or absorbent materials in the moving bed.

### Claim 7 (depends on 1)

The method of claim 1, wherein a bed density of the moving bed is at least about 0.1 g/cm3 by volume.

### Claim 8 (depends on 7)

The method of claim 7, wherein a bed density of the moving bed is at least about 1 g/cm3 by volume.

### Claim 9 (depends on 3)

The method of claim 3, wherein the fluid comprises at least one component which is a halogenated organic compound which reacts with another component of the fluid.

### Claim 10 (depends on 9)

The method of claim 9, wherein the halogenated organic compound is CCl4 or a dioxin.

### Claim 11 (depends on 1)

The method of claim 1, further comprising:
partially immersing a workpiece into the moving bed, wherein a coating is deposited on the workpiece.