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1. WO2012066295 - OZONE DECOMPOSITION CATALYST FOR USE IN A STERILISATION AND/OR DECONTAMINATION PROCESS

Publication Number WO/2012/066295
Publication Date 24.05.2012
International Application No. PCT/GB2011/001623
International Filing Date 17.11.2011
IPC
B01J 21/08 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
21Catalysts comprising the elements, oxides or hydroxides of magnesium, boron, aluminium, carbon, silicon, titanium, zirconium or hafnium
06Silicon, titanium, zirconium or hafnium; Oxides or hydroxides thereof
08Silica
B01J 23/44 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
23Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/113
38of noble metals
40of the platinum group metals
44Palladium
A61L 2/20 2006.01
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
LMETHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION, OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICAL ARTICLES
2Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
16using chemical substances
20Gaseous substances, e.g. vapours
A61L 9/015 2006.01
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
LMETHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION, OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICAL ARTICLES
9Disinfection, sterilisation or deodorisation of air
015using gaseous or vaporous substances, e.g. ozone
B01D 53/86 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
53Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases or aerosols
34Chemical or biological purification of waste gases
74General processes for purification of waste gases; Apparatus or devices specially adapted therefor
86Catalytic processes
B01J 23/40 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
23Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/113
38of noble metals
40of the platinum group metals
CPC
A61L 2/202
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
LMETHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION, OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICAL ARTICLES
2Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
16using chemical substances
20Gaseous substances, e.g. vapours
202Ozone
A61L 2202/13
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
LMETHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION, OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICAL ARTICLES
2202Aspects relating to methods or apparatus for disinfecting or sterilising materials or objects
10Apparatus features
13Biocide decomposition means, e.g. catalysts, sorbents
A61L 2202/25
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
LMETHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION, OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICAL ARTICLES
2202Aspects relating to methods or apparatus for disinfecting or sterilising materials or objects
20Targets to be treated
25Rooms in buildings, passenger compartments
A61L 2209/212
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
LMETHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION, OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICAL ARTICLES
2209Aspects relating to disinfection, sterilisation or deodorisation of air
20Method-related aspects
21Use of chemical compounds for treating air or the like
212Use of ozone, e.g. generated by UV radiation or electrical discharge
A61L 9/015
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
LMETHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION, OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICAL ARTICLES
9Disinfection, sterilisation or deodorisation of air
015using gaseous or vaporous substances, e.g. ozone
B01D 2251/104
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
2251Reactants
10Oxidants
104Ozone
Applicants
  • STERITROX LIMITED [GB]/[GB] (AllExceptUS)
  • JENNINGS, James Robert [GB]/[GB] (UsOnly)
Inventors
  • JENNINGS, James Robert
Agents
  • LEES, Kate, Jane
Priority Data
1019389.417.11.2010GB
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) OZONE DECOMPOSITION CATALYST FOR USE IN A STERILISATION AND/OR DECONTAMINATION PROCESS
(FR) CATALYSEUR DE DÉCOMPOSITION D'OZONE DESTINÉ À ÊTRE UTILISÉ DANS UN PROCÉDÉ DE STÉRILISATION ET/OU DE DÉCONTAMINATION
Abstract
(EN)
The use of a catalyst comprising at least one active metal or metal oxide supported on a mixed titanium/silicon oxide support in the conversion of ozone to oxygen at a temperature of less than 40°C in a humid atmosphere. The catalyst may be employed in a method of sterilisation, decontamination and/or sanitation of an enclosed environment, the method comprising producing a humidified enclosed environment; discharging ozone into the humidified environment; maintaining the ozone and water vapour pressure levels at a concentration that will achieve the required degree of decontamination and passing the substantially decontaminated, sterilised and/or sanitised environment through an ozone depletion catalyst comprising the at least one catalytically active metal or metal oxide supported on a mixed titanium/silicon oxide support to reduce the concentration of ozone to a predetermined level; Optionally, a hydrocarbon containing a carbon-carbon double bond may be introduced into the environment to aid removal of the ozone.
(FR)
Cette invention concerne l'utilisation d'un catalyseur comprenant au moins un métal ou un oxyde métallique actif supporté sur un support mixte d'oxyde de titane/silicium dans la conversion de l'ozone en oxygène à une température inférieure à 40°C dans une atmosphère humide. Le catalyseur peut être utilisé dans un procédé de stérilisation, de décontamination et/ou d'assainissement d'un environnement clos, le procédé comprenant l'obtention d'un environnement clos humidifié; la décharge d'ozone dans ledit environnement humidifié; le maintien des niveaux de pression d'ozone et de vapeur d'eau à une concentration qui permettra d'atteindre le degré de décontamination requis et le passage de l'environnement sensiblement décontaminé, stérilisé et/ou assaini par un catalyseur de déplétion d'ozone comprenant ledit au moins métal ou oxyde métallique catalytiquement actif supporté sur un support mixte d'oxyde de titane/silicium pour abaisser la concentration d'ozone jusqu'à un niveau prédéterminé; un hydrocarbure contenant une double liaison carbone-carbone pouvant éventuellement être introduit dans l'environnement pour contribuer à l'élimination de l'ozone.
Also published as
Latest bibliographic data on file with the International Bureau