William J Schroeder

US Patent:

20220184551, Jun 16, 2022

Filed:

Mar 11, 2020

Appl. No.:

17/437683

Inventors:

- Los Angeles CA, US
- Hong Kong, CN
Tom HUISKAMP - Los Angeles CA, US
Alec NYSTROM - Los Angeles CA, US
William SCHROEDER - Los Angeles CA, US

Assignee:

UNIVERSITY OF SOUTHERN CALIFORNIA - Los Angeles CA
TAI CHONG CHEANG STEAMSHIP CO. (H.K.) LIMITED - Hong Kong

International Classification:

B01D 53/32
B01D 53/92
F01N 3/08

Abstract:

A system for exhaust gas remediation includes an engine, a plasma reactor, and a pulse source. The engine emits exhaust gas that includes NO molecules and NOx molecules. The plasma reactor includes an internal chamber that is fluidly connected to the engine such that the exhaust gas flows into the internal chamber. An electrode is disposed within the internal chamber of the plasma reactor. The electrode is electrically coupled to an electrical pulse source. The electrical pulse source delivers electrical pulse to the electrode to form a plasma from the exhaust gas, which removes at least a portion of the NO molecules and at least a portion of the NOx molecules.

US Patent:

20200023308, Jan 23, 2020

Filed:

Jul 10, 2019

Appl. No.:

16/508069

Inventors:

- Torrance CA, US
William P. Schroeder - La Habra Heights CA, US
Jason M. Sanders - Los Angeles CA, US
Daniel Singleton - El Segundo CA, US
Mark Thomas - Redondo Beach CA, US
Patrick Ford - Redondo Beach CA, US
Martin Adolph Gundersen - San Gabriel CA, US

International Classification:

B01D 53/34
F24C 15/20

Abstract:

A method and system to treat cooking emissions (e.g., smoke) employs a nanosecond high voltage pulse generator and a transient pulsed plasma reactor. The system is used in a scheme that substantially reduces particulate matter produced in commercial charbroiling processes (e.g., cooking of hamburger meat). Both a reduction in the size distribution and total particulate mass is achieved using the method and system described herein.

US Patent:

20200025393, Jan 23, 2020

Filed:

Sep 27, 2019

Appl. No.:

16/586514

Inventors:

- Torrance CA, US
William P. Schroeder - La Habra Heights CA, US
Jason M. Sanders - Los Angeles CA, US
Daniel Singleton - El Segundo CA, US
Mark Thomas - Redondo Beach CA, US
Patrick Ford - Redondo Beach CA, US
Martin Adolph Gundersen - San Gabriel CA, US

International Classification:

F24C 15/20
B01J 19/08

Abstract:

A method and system to treat emissions (e.g., smoke, particulate, odor, grease) employs a nanosecond high voltage pulse generator, a transient pulsed plasma reactor, and a DC voltage source that supplies a DC bias voltage, preferably a negative DC bias voltage to a conductor of the transient pulsed plasma reactor. The system is used in a scheme that substantially reduces at least particulate matter in emissions streams, for example emissions streams produced during cooking, for instance in commercial charbroiling processes (e.g., cooking of hamburger meat), or from operation of internal combustion engines. Both a reduction in the size distribution and total particulate mass is achieved using the method and system described herein.