IP Library › Granted Patent US 10,589,248
Granted Patent B1
US 10,589,248 · App. 16/458,098 · Granted Mar 17, 2020

Chemical reactors systems and methods for multi-phase reactions

Inventors: Sean Doris (San Francisco, CA); Warren Jackson (San Francisco, CA); Naveen Chopra (Mississauga, CA); Bradley Rupp (San Francisco, CA); Robert Street (Palo Alto, CA)
Assignees: Palo Alto Research Center Incorporated; Xerox Corporation
B01J10/00B01J10/002B01J10/007B01J19/0013B01J19/088B01J2219/002B01J2219/00051B01J2219/00162B01J2219/00164B01J2219/00177B01J2219/00186B01J2219/00227B01J2219/00234B01J2219/0805B01J2219/0877
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Quick Facts
Patent No.
US 10,589,248
App. No.
16/458,098
Granted
Mar 17, 2020
Kind
B1
Abstract

One embodiment provides a chemical reactor, which can comprise a substrate for facilitating chemical reactions occurring at triple-phase boundaries. One possible substrate may further comprise a set of dynamically controllable sites and/or pixels upon which control signals may affect a desired formation of gas bubbles over an active catalytic (or other desired) solid surface in a liquid flow—wherein a chemical reaction in two or more phase boundaries may occur. In yet another embodiment, a control algorithm may send control signals to controllable sites/pixels to maximize the operation of the reactor according to a desired metric (e.g., product formation) that may input a set of sensor data to affect its control.

Claims (31)

1. A multi-phase chemical reaction chamber comprising:

a substrate, the substrate configured to receive a flow of chemicals for reacting within the chamber;

a set of dynamically controllable pixels, the pixels further comprising a solid surface, the solid surface comprising one of the phases of a multi-phase reaction occurring within the chamber;

a controller, the controller further comprising a processor controlled under a computer-readable set of instructions and, when read by the processor causes the controller to send control signals to the set of dynamically controllable pixels, to perform the following:

energize a subset of the dynamically controllable pixels to carry a desired voltage level, the energized pixels configured to create the formation of gas bubbles over the pixels, the gas bubbles comprising one of the phases of the multi-phase reaction occurring within the chamber.

2. The multi-phase chemical reaction chamber as recited in claim 1 wherein the pixels comprise a solid surface that is coated with a desired catalyst for the desired multi-phase chemical reaction occurring within the chamber.

3. The multi-phase chemical reaction chamber as recited in claim 1 wherein the pixels comprise a solid surface that is coated with a solid material that is consumed in the desired multi-phase chemical reaction occurring within the chamber.

4. The multi-phase chemical reaction chamber as recited in claim 1 wherein the pixels comprise electrowetting pixels.

5. The multi-phase chemical reaction chamber as recited in claim 1 wherein the chamber further comprises a set of sensors, the sensors recording data regarding chemical reaction occurring within the chamber.

6. The multi-phase chemical reaction chamber as recited in claim 5 wherein the sensors comprise one of the following: temperature, input flow rate and composition, output flow rate and composition, pH, pressure, camera and chemical assays to determine the amount of reactants, intermediate products and final products.

7. The multi-phase chemical reaction chamber as recited in claim 1 wherein the pixels further comprise a port, the port configured to introduce chemical reactants into the chamber under control of the controller.

8. The multi-phase chemical reaction chamber as recited in claim 1 wherein the pixels further comprise an energizing element, the energizing element configured to be energized by the controller.

9. The multi-phase chemical reaction chamber as recited in claim 1 wherein the pixels comprise a desired irregular surface wherein the controller is configured to modulate the energizing signal to the pixel to induce gas bubbles to move upwards and downwards as desired over the irregular surface.

10. The multi-phase chemical reaction chamber as recited in claim 1 wherein the pixels comprise a flexible surface controllable by the controller.

11. The multi-phase chemical reaction chamber as recited in claim 1 wherein the pixels comprise a MEMS structure configured to gimbal the pixel in a desired direction to the flow of chemicals within the chamber.

12. A method for controlling pixels within a multi-phase chemical reaction chamber, the chemical chamber comprising a set of dynamically controllable pixels, the pixels further comprising a solid surface, the solid surface comprising one of the phases of a multi-phase reaction occurring within the chamber, the method comprising:

receiving input data from a set of sensors, the sensors detecting desired conditions of the chemical reaction occurring within the chamber;

based on desired metrics, sending control signals to the set of dynamically controllable pixels to optimize the chemical reaction.

13. The method as recited in claim 12 wherein the control signals are signals to set voltage levels on the pixels.

14. The method as recited in claim 12 wherein the control signals are signals to set a temperature level on an energizing element on the pixel.

15. The method as recited in claim 12 wherein the control signals are signals to set a light emitting level on an energizing element on the pixel.

16. The method as recited in claim 12 wherein the control signals are signals to open a port on the pixel to introduce a chemical reactant proximal to the pixel.

17. A modular, multi-phase chemical reaction chamber configured to fit and operate within a larger chemical reactor, the modular chemical chamber comprising:

a substrate, the substrate configured to receive a flow of chemicals for reacting within the chamber;

a set of dynamically controllable pixels, the pixels further comprising a solid surface, the solid surface comprising one of the phases of a multi-phase reaction occurring within the chamber;

a control structure, the control structure configured to direct the flow of chemical reactants into and out of the chemical chamber;

a controller, the controller further comprising a processor controlled under a computer-readable set of instructions and, when read by the processor causes the controller to send control signals to the set of dynamically controllable pixels, to perform the following:

energize a subset of the dynamically controllable pixels to carry a desired voltage level, the energized pixels configured to create the formation of gas bubbles over the pixels, the gas bubbles comprising one of the phases of the multi-phase reaction occurring within the chamber.

18. The modular, multi-phase chemical reaction chamber as recited in claim 17 wherein the control structure is a set of louvers, the louvers controllable by the controller to direct the flow of chemicals.

19. The modular, multi-phase chemical reaction chamber as recited in claim 17 wherein the control structure is a set of mechanical motors, the motors mechanically mated to the chamber and controllable to move the chamber to a different position within the larger chemical reactor.

20. The modular, multi-phase chemical reaction chamber as recited in claim 17 wherein the controller is configured to receive sensor data from sensors located within the larger chemical reactor.

Assignments (8)
SECURITY INTEREST Recorded Feb 13, 2024
From: XEROX CORPORATION
To: CITIBANK, N.A., AS COLLATERAL AGENT
Reel/Frame 066741/0001 →
TERMINATION AND RELEASE OF SECURITY INTEREST IN PATENTS RECORDED AT RF 064760/0389 Recorded Feb 13, 2024
From: CITIBANK, N.A., AS COLLATERAL AGENT
To: XEROX CORPORATION
Reel/Frame 068261/0001 →
SECURITY INTEREST Recorded Nov 20, 2023
From: XEROX CORPORATION
To: JEFFERIES FINANCE LLC, AS COLLATERAL AGENT
Reel/Frame 065628/0019 →
CORRECTIVE ASSIGNMENT TO CORRECT THE REMOVAL OF US PATENTS 9356603, 10026651, 10626048 AND INCLUSION OF US PATENT 7167871 PREVIOUSLY RECORDED ON REEL 064038 FRAME 0001. ASSIGNOR(S) HEREBY CONFIRMS THE ASSIGNMENT. Recorded Jun 28, 2023
From: PALO ALTO RESEARCH CENTER INCORPORATED
To: XEROX CORPORATION
Reel/Frame 064161/0001 →
SECURITY INTEREST Recorded Jun 22, 2023
From: XEROX CORPORATION
To: CITIBANK, N.A., AS COLLATERAL AGENT
Reel/Frame 064760/0389 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 20, 2023
From: PALO ALTO RESEARCH CENTER INCORPORATED
To: XEROX CORPORATION
Reel/Frame 064038/0001 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 30, 2019
From: DORIS, SEAN; STREET, ROBERT; JACKSON, WARREN; RUPP, BRADLEY
To: PALO ALTO RESEARCH CENTER INCORPORATED
Reel/Frame 049633/0763 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 30, 2019
From: CHOPRA, NAVEEN
To: XEROX CORPORATION
Reel/Frame 049633/0761 →
Cited By (1)
US 12,380,968