Apparatus for removing oxides of nitrogen and sulfur from combus

Chemical apparatus and process disinfecting – deodorizing – preser – Chemical reactor – Waste gas purifier

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

422170, 422177, 422183, 422212, 422220, B01J 812

Patent

active

051205084

ABSTRACT:
An apparatus is provided in accordance with practice of this invention for lowering the molar ratio of NO to NO.sub.2 in flue gas by converting a portion of flue gas nitric oxide (NO) to nitrogen dioxide (NO.sub.2), for removing the associated oxides of sulfur (SO.sub.x) and nitrogen (NO.sub.x) from the flue gas prior to discharge of the flue gas into the atmosphere.

REFERENCES:
patent: 2288091 (1942-06-01), Hoover
patent: 2309845 (1943-02-01), Hodge
patent: 2491919 (1949-12-01), Egly
patent: 3589863 (1971-06-01), Frevel et al.
patent: 3823676 (1974-07-01), Cook
patent: 3880618 (1975-04-01), McCrea et al.
patent: 3880629 (1975-04-01), Dulin
patent: 3932589 (1976-01-01), Teller
patent: 3957949 (1976-05-01), Senjo et al.
patent: 3969482 (1976-07-01), Teller
patent: 3977844 (1976-08-01), Van Slyke
patent: 4018868 (1977-04-01), Knight
patent: 4024219 (1977-05-01), Takahashi et al.
patent: 4061743 (1977-12-01), Senjo et al.
patent: 4062926 (1977-12-01), Knight
patent: 4213944 (1980-07-01), Azuhata et al.
patent: 4309386 (1982-01-01), Pirsh
patent: 4323544 (1982-04-01), Magder
patent: 4350669 (1982-09-01), Izumi et al.
patent: 4375455 (1983-03-01), Teller et al.
patent: 4385039 (1983-05-01), Lowell
patent: 4442079 (1984-04-01), Donnelley et al.
patent: 4442080 (1984-04-01), Donnelley et al.
patent: 4454099 (1984-06-01), Moffat
patent: 4564510 (1986-01-01), Bechthold et al.
patent: 4603036 (1986-07-01), Botton et al.
Chen et al., "The Oxidation of NO to NO.sub.2 During Combustion Quenching Process".
Takahashi et al., "Development of MACT in Furnace NO.sub.x Removal Process for Utility Steam Generators," presented 44th Annual Meeting of the American Power Conference, Apr. 26-28, 1982.
K. Felsvang et al., "Acid Rain Prevention Thru New SO.sub.x /NO.sub.x Dry Scrubbing Process," presented at 1983 Joint Power Convention, Indianapolis, IN, Sep. 1983.
Shah et al., Owens Lake Trona for Dry SO.sub.2 Removal, Lake Minerals Corporation, Jun. 1983.
L. J. Muzio et al., "22 MW Coal-Fired Demonstration of Dry SO.sub.2 Scrubbing with Sodium Sorbent Compounds".
H. Takeuchi et al., "Simultaneous Absorption of SO.sub.2 and NO.sub.2 in Aqueous Solutions of NaOH and Na.sub.2 SO.sub.3," Ind. Eng. Chem. Process Des. Dev., vol. 17, No. 4, 1978.
M. Schutz et al., "Dry Injection Scrubbing of Flue Gases According to the Shu-Process," 1st Joint EPS/EPRI-Symposium on Dry SO.sub.2 and Simultaneous SO.sub.2 /NO.sub.x Control Technologies, San Diego, CA.
Pozdnyakov et al., "Use of IR Spectroscopy to Investigate Chemisorption of Nitric Oxide and Nitrogen Dioxide on Metallic Oxides," Scientific-Research Institute of Physics, A. A. Zhdanov Leningrad State University, 1973.
Blyholder et al., "Structure of Surface Species. Adsorption of Nitrogen Dioxide on Oil-- and Silica-Supported Nichel and Iron," The Journal of Physical Chemistry, vol. 70, No. 2, 1966.
C. Chang, "Infrared Studies of SO.sub.2 on Gamma-Alumina," Journal of Catalysis, 53, 374-385 (1978).
V. Bland et al., "Characterization of Alternate Sodium Sorbents for Fabric Filter SO.sub.2 Capture," presented at First Joint Symposium on Dry SO.sub.2 and Simultaneous SO.sub.2 /NO.sub.x Control Technologies, Nov. 13-16, 1984, San Diego, Calif.
N. D. Shah, "Polution Control Practices; Dry Scrubbing of SO.sub.2," CEP Jun. 1982.
H. Takeuchi et al., "Absorption of Nitrogen Dioxide in Sodium Sulfite Solution from Air as a Diluent," Ind. Eng. Chem. Process Des. Dev., vol. 16, No. 4, 1977.
H. Kobayashi et al., "Removal of Nitrogen Oxides with Aqueous Solutions of Inorganic and Organic Reagents," Environmental Science and Technology, vol. 11, No. 2, Feb. 1977.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Apparatus for removing oxides of nitrogen and sulfur from combus does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Apparatus for removing oxides of nitrogen and sulfur from combus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus for removing oxides of nitrogen and sulfur from combus will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-1803206

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.