Back to results
US 12,357,719 B2Granted
Purified hydrogen peroxide gas generation methods and devices
AssigneeSynexis LLC
InventorsJames D. Lee, Douglas J. Bosma
Life of this patent
Estimating the term…
Abstract
The present disclosure provides for and includes improved devices and methods for the production of Purified Hydrogen Peroxide Gas (PHPG) that is substantially non-hydrated and substantially free of ozone.
Claims34
A device for producing non-hydrated purified hydrogen peroxide gas (PHPG) and providing at least a portion of said PHPG to a building, said device comprising:
- a. an enclosure comprising a duct of a heating, ventilation, and air conditioning (HVAC) system;
- b. an air distribution mechanism providing an airflow, wherein said air distribution mechanism comprises at least one fan associated with said HVAC system;
- c. an air-permeable substrate structure having a catalyst on its surface and configured to produce non-hydrated purified hydrogen peroxide gas when exposed to a light source and provided an airflow,
- wherein said air-permeable substrate structure is disposed within said duct of said HVAC system;
- and
- d. a source of ultraviolet (UV) light comprising a wavelength between 190 nm and 460 nanometers (nm), wherein said source of UV light is configured to illuminate at least a portion of said catalyst on said surface of said air-permeable substrate structure;
- wherein said air-permeable substrate structure is arranged in said duct of said HVAC system such that an airflow through said duct is across said air-permeable substrate structure;
- and
- wherein said device produces PHPG that is free of ozone and directs it out of said duct and into a heated, ventilated, and air conditioned space in said building, when in operation.
6 more elements
A device for producing non-hydrated purified hydrogen peroxide gas (PHPG), said device comprising:
- a. an air-permeable substrate structure having a catalyst on at least a portion of its surface and configured to produce non-hydrated purified hydrogen peroxide gas when exposed to a light source and provided with an airflow,
- wherein said air-permeable substrate structure comprises a mesh formed from at least one chosen from fiberglass, polymer, or metal;
- b. a source of ultraviolet (UV) light comprising a wavelength between 190 nm and 460 nanometers (nm) configured to irradiate at least a portion of said catalyst with said UV light,
- wherein said device is configured for installation in a heating, ventilation, and air conditioning (HVAC) system comprising a duct, wherein said device is configured so that said airflow is across said air-permeable substrate structure when said device is installed in said duct;
- and
- wherein said device produces PHPG that is free of ozone and wherein said device is configured to direct at least a portion of said PHPG out of said duct and into a heated, ventilated, and air conditioned space in fluid flow communication with said HVAC system, when in operation.
3 more elements
A method for generating non-hydrated purified hydrogen peroxide gas (PHPG) using a heating, ventilation, and air conditioning (HVAC) system, said method comprising:
- (a) passing a humid air stream through an air permeable structure of a PHPG generating device located within a duct of said HVAC system, wherein said air permeable structure comprises an air permeable substrate coated on at least one surface with at least one catalyst, wherein at least a portion of said passing is carried out by at least one fan associated with said HVAC system;
- (b) during at least a portion of said passing of step (a), illuminating at least a portion of said catalyst on said air permeable structure with ultraviolet (UV) light having a wavelength between 190 nm and 460 nm to generate non-hydrated PHPG as said humid air contacts said catalyst of said air permeable structure;
- and
- (c) discharging an air stream comprising PHPG from said air permeable structure and out of said duct and into a heated, ventilated, and air conditioned space.
1 more element
Dependencies are inferred from the claim text.