Chemical apparatus and process disinfecting – deodorizing – preser – Chemical reactor – With means applying electromagnetic wave energy or...
Patent
1997-12-11
1999-08-03
Jenkins, Daniel J.
Chemical apparatus and process disinfecting, deodorizing, preser
Chemical reactor
With means applying electromagnetic wave energy or...
422 24, A61L 920
Patent
active
059337028
ABSTRACT:
A method for disinfecting an air stream containing microorganisms including the steps of providing an air stream containing microorganisms having a relative humidity greater than about 40%; and contacting the air stream with a photocatalyst having a predetermined band gap energy in the presence of a source of photons having a wavelength corresponding to the band gap energy of the photocatalyst, so that at least a portion of the microorganisms in the air stream are destroyed by photocatalyfic oxidation. Devices embodying the method of the invention are disclosed, such as stand-alone devices and devices incorporated into the HVAC systems of buildings, including the air supply registers. Photocatalyst-coated filter media capable of trapping bioaerosols are also disclosed.
REFERENCES:
patent: 2265252 (1941-12-01), Schaefer
patent: 2628083 (1953-02-01), Rense
patent: 2638644 (1953-05-01), Rauhut
patent: 3973927 (1976-08-01), Furchner et al.
patent: 4102654 (1978-07-01), Pellin
patent: 4306358 (1981-12-01), King, Jr.
patent: 4437954 (1984-03-01), Sammells et al.
patent: 4464336 (1984-08-01), Hiramoto
patent: 4554719 (1985-11-01), Lewis
patent: 4694179 (1987-09-01), Lew et al.
patent: 4734111 (1988-03-01), Hoffmann et al.
patent: 4750917 (1988-06-01), Fujii
patent: 4806768 (1989-02-01), Keutenedjian
patent: 4859594 (1989-08-01), Portier
patent: 4931654 (1990-06-01), Horng
patent: 4955208 (1990-09-01), Kawashima et al.
patent: 4966759 (1990-10-01), Robertson et al.
patent: 4990311 (1991-02-01), Hirai et al.
patent: 5032241 (1991-07-01), Robertson et al.
patent: 5045288 (1991-09-01), Raupp et al.
patent: 5069885 (1991-12-01), Ritchie
patent: 5151252 (1992-09-01), Mass
patent: 5186907 (1993-02-01), Yanagi et al.
patent: 5200156 (1993-04-01), Wedekamp
patent: 5219534 (1993-06-01), Reynolds
patent: 5225167 (1993-07-01), Wetzel
patent: 5227053 (1993-07-01), Bryan
patent: 5260036 (1993-11-01), Weigold et al.
patent: 5262066 (1993-11-01), Van Soye et al.
patent: 5397552 (1995-03-01), Weigold et al.
patent: 5413768 (1995-05-01), Stanley, Jr.
patent: 5433763 (1995-07-01), Shagott et al.
patent: 5449443 (1995-09-01), Jacoby et al.
patent: 5456740 (1995-10-01), Snow et al.
patent: 5501801 (1996-03-01), Zhang et al.
patent: 5554300 (1996-09-01), Butters et al.
patent: 5589132 (1996-12-01), Zippel
patent: 5604339 (1997-02-01), Tabatabaie-Raissi et al.
Matthews, Solar Energy, 38(6), 405-13 (1987).
Trivedi, Photocatalytic Disinfection of Airbourne Microorganisms (Univ. of Florida, Sep. 6, 1994).
Sabate et al., J. Catal., 127, 167-77 (1991).
Suzuki, "Photocatalytic Air Purification on TiO.sub.2 Coated Honeycomb Support," Photocat. Purification and Treat. of Water and Air (Ollis and Al-Ekabi, Eds., Elsevier Sci. Pubs. 1993) 421-434.
Fujishima et al., "Biochemical Application of TiO.sub.2 Photocatalysts," Photocat. Purification and Treat. of Water and Air (Ollis and Al-Ekabi Eds., Elsevier Sci. Pubs. 1993) 193-205.
Wang et al., "Control of VOC Emissions from Air-Stripping Towers: Development of Gas-Phase Photocatalytic Process," Photocat. Purification and Treat. of Water and Air (Ollis and Al-Ekabi, Eds., Elsevier Sci. Pubs. 1993) 733-739.
Anderson et al., "Photodegradation of trichloroethylene in the gas phase TiO.sub.2 porous ceramic membrane," Photocat. Purification and Treat. of Water and Air (Ollis and Al-Ekabi, Eds., Elsevier Sci. Pubs. 1993) 405-420.
Wang et al., "Gas Phase Photocatalytic Process for the Control of VOC Emissions from Air-Stripping Towers," Proc.-Annu. Conf., Am. Water Assoc., 585-605 (1993).
Jenkins Daniel J.
Universal Air Technology
LandOfFree
Photocatalytic air disinfection does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Photocatalytic air disinfection, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Photocatalytic air disinfection will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-859440