# US 2021/0276058 A1 · Reactor for the hydrothermal oxidation treatment of an organic material in a reaction medium

> Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt

- Number: US 2021/0276058 A1
- Document ID: US20210276058A1
- Status: Published application
- Kind: A1
- Application number: 17/251,349
- Filed: 2019-06-13
- Published: 2021-09-09
- Earliest claimed: 2018-06-14
- Assignees: Commissariat A L'energie Atomique Et Aux Energies Alternatives
- Applicants: Commissariat à L'éNergie Atomique Et Aux éNergies Alternatives
- Inventors: Jean -Christophe Ruiz; Hubert-Alexandre Turc; Antoine Leybros
- Web page: https://patentgrep.com/patent/US20210276058A1

## CPC

- B01J 19/0026: {Avoiding carbon deposits (inhibiting incrustation in general, C23F14/00, C23F15/00)}
- B09B 3/40: involving thermal treatment, e.g. evaporation (processes using mineral binders involving a melting or softening step B09B3/29; involving radiation B09B3/50)
- B01J 3/008: {Processes carried out under supercritical conditions}
- B01J 19/0013: {Controlling the temperature of the process}
- B01J 19/0066: {Stirrers (mixing per se B01F)}
- B01J 19/1843: {Concentric tube}
- C02F 1/72: by oxidation {(C02F1/4672 takes precedence)}
- B01J 2219/00076: with heat exchange elements inside the reactor
- B01J 2219/00087: with heat exchange elements outside the reactor
- B01J 2219/00105: part or all of the reactants being heated or cooled outside the reactor while recycling
- B01J 2219/00159: controlling multiple zones along the direction of flow, e.g. pre-heating and after-cooling
- B01J 2219/00247: Fouling of the reactor or the process equipment
- C02F 2201/003: Coaxial constructions, e.g. a cartridge located coaxially within another
- B01J: CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B09B: DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- C02F: TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE (separation in general B01D; special arrangements on waterborne vessels of installations for treating water, waste water or sewage, e.g. for producing fresh water, B63J; adding materials to water to prevent corrosion C23F; treating radioactively-contaminated liquids G21F9/04; regeneration of reactants for recirculation into processes, see the relevant places for the processes)

## Abstract

A reactor for hydrothermal oxidation treatment of an organic material in a reaction medium, comprising: a confinement member housed in a chamber and defining a confinement zone and a peripheral zone; at least one inlet for an oxidising fluid into the peripheral zone; a first cooling system, with an external circulation cold loop having a fluid inlet and outlet, opening into a first portion of the peripheral zone; a heating system, with an external circulation hot loop having a fluid inlet and outlet opening into a second portion of the peripheral zone; a channel with a mouth, a channel stirring system; a second cooling system for creating a temperature gradient along the channel between a cold temperature and the reaction temperature; each circulation loop being equipped with a circulator and with a heat exchanger.

## Claims

### Claim at position 1

-9. (canceled)

### Claim 10

A reactor for the hydrothermal oxidation treatment of an organic material in a reaction medium, the reactor comprising:
an enclosure delimiting a cavity in which is housed a confinement member defining an internal zone, called a confinement zone, for containing the reaction medium, and an external zone, called a peripheral zone;
at least one oxidising fluid inlet for introducing an oxidising fluid into the peripheral zone;
at least one first cooling system configured to cool the oxidising fluid at the oxidising fluid inlet in a first portion of the peripheral zone, so as to define a cold peripheral zone;
at least one heating system for heating the oxidising fluid in a second portion of the peripheral zone, prior to its introduction into the confinement zone, so as to define a hot peripheral zone; and
at least one introduction channel for the organic material into the confinement zone for introducing a loaded fluid, comprising the organic material and water, said introduction channel being provided with an introduction mouthpiece through which the loaded fluid is introduced into the introduction channel;
an outlet from the confinement zone for discharging effluents produced in the confinement zone from the enclosure;
wherein the reactor further comprises:
a stirring system of the introduction channel adapted to create turbulence in the fluid loaded in said introduction channel;
at least one second cooling system adapted to create, in the loaded fluid, a temperature gradient along the introduction channel between a so-called cold temperature, lower than a reaction temperature prevailing in the confinement zone, and the reaction temperature;
and wherein the first cooling system is an outer circulation cold loop having a fluid inlet and a fluid outlet opening into the cold peripheral zone, and the heating system is an outer circulation hot loop having a fluid inlet and a fluid outlet opening into the hot peripheral zone, each circulation loop being equipped with a circulator and a heat exchanger, and having as a coolant the oxidising fluid circulating in the peripheral zone, an element being placed in the peripheral zone to separate the cold and hot loops, while allowing the oxidising fluid to pass from the cold peripheral zone to the hot peripheral zone.

### Claim 11 (depends on 10)

The reactor according to claim 10, wherein the stirring system comprises a first stirring element extending into the introduction channel, said first stirring element being preferably integral with a stirring system of the confinement zone.

### Claim 12 (depends on 11)

The reactor according to claim 11, wherein the stirring system further comprises a second stirring element arranged in the mixing zone, the second stirring element being preferentially integral with the first stirring element.

### Claim 13 (depends on 10)

The reactor according to claim 10, wherein the introduction channel is at least partly housed in a passage for the oxidising fluid, the oxidising fluid circulating in said passage between the second cooling system and the heating system, so as to create the temperature gradient between the cold temperature and the reaction temperature.

### Claim 14 (depends on 10)

The reactor according to claim 10, further comprising a mixing zone in which the organic material and an aqueous fluid are mixed to form the loaded fluid, said mixing zone being upstream of the introduction mouthpiece.

### Claim 15 (depends on 10)

The reactor according to claim 10, wherein the circulators of the cold and hot loops are a double circulator common to both loops.

### Claim 16 (depends on 10)

The reactor according to claim 10, further comprising a recycling loop for the effluents produced in the confinement zone, this recycling loop connecting the outlet of the confinement zone to a fluid inlet located upstream of the introduction mouthpiece of the introduction channel.

### Claim 17 (depends on 10)

The reactor according to claim 10, wherein the second cooling system is a double jacket fed by chilled water, located at right angles with the introduction channel, downstream of the introduction mouthpiece.

### Claim 18 (depends on 10)

The reactor according to claim 10, in which the introduction channel and the confinement member are integral and coaxial with each other, the enclosure comprising a first portion, in which the confinement member is housed, and a second portion, in which at least part of the introduction channel is housed, the first and second portions being coaxial and the second portion having a cross-section area at least half the cross-section area of the first portion.