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Title: US5541147: Immobilized free molecule aerosol catalytic reactor
[ Derwent Title ]

Country: US United States of America

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10 pages

 
Inventor: Friedlander, Sheldon K.; Pacific Palisades, CA
Fischel, Lawrence B.; Culver City, CA

Assignee: The Regents of the University of California, Oakland, CA
other patents from UNIVERSITY OF CALIFORNIA, THE REGENTS OF (599425) (approx. 4,840)
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Published / Filed: 1996-07-30 / 1992-11-12

Application Number: US1992000975906
IPC Code: Advanced: B01D 53/94; B01J 23/36; B01J 23/42; B01J 23/44; B01J 23/72; B01J 35/04;
Core: B01J 23/16; B01J 35/00; more...
IPC-7: B01J 21/00; B01J 23/38;

ECLA Code: B01D53/94K2C; B01J23/36; B01J23/42; B01J23/44; B01J23/72; B01J35/04;

U.S. Class: Current: 502/100; 502/262; 502/333; 502/334; 502/339; 502/345;
Original: 502/100; 502/262; 502/333; 502/334; 502/339; 502/345;

Field of Search: 502/262,333,334,339,345,100

Government Interest:     This invention was made with support under contract number CBT-85-16862 from the National Science Foundation, and contract number CR-812771 from the Environmental Protection Agency. Accordingly, the U.S. governmant has certain rights in the invention.

Priority Number:
1992-11-12  US1992000975906
1991-02-14  US1991000655672

Abstract: A catalytic reactor bed in which support particles in the free molecule size range of 50 to 500 .ANG.ngstroms are attached to an anchor surface to form a dendritic network which extends from 10 microns to 300 microns outward from the anchor surface. Catalyst particles which are also in the free molecule in the size range of 10 to 80 .ANG.ngstroms are attached to and dispersed throughout the support particle network. A process for making the reactor bed using binary gas phase nucleation of support particle and catalyst particle precursors is also disclosed.

Attorney, Agent or Firm: Poms, Smith, Lande & Rose ;

Primary / Asst. Examiners: Straub, Gary P.; Vanoy, Timothy C.
INPADOC Legal Status: None          Buy Now: Family Legal Status Report

       
Related Applications:
Application Number Filed Patent Pub. Date  Title
US1991000655672 1991-02-14       


       
Parent Case:     This is a continuation of application Ser. No. 07/655,672, filed on Feb. 14, 1991, now abandoned.

Designated Country: CA EP JP 

Family: Show 2 known family members
First Claim:
Show all 15 claims		 What is claimed is:     1. A catalytic reactor bed comprising:
  • an anchor surface comprising a plurality of inert fibers having diameters between about 0.1 microns to 10 microns;
  • a dendritic support particle network attached to and extending outward from said anchor surface, said support particle network comprising a plurality of support particles having particle sizes in the range of about 50 to 500 .ANG.ngstroms; and
  • a plurality of discrete catalyst particles attached to said support particles and dispersed throughout said support particle network, said catalyst particles having particle sizes in the range of about 10 to 80 .ANG.ngstroms.
    •


Background / Summary: Show background / summary

Drawing Descriptions: Show drawing descriptions

Description: Show description

Forward References: Show 12 U.S. patent(s) that reference this one

       
U.S. References: Go to Result Set: All U.S. references   |  Forward references (12)   |   Backward references (17)   |   Citation Link

Buy
PDF		 Patent  Pub.Date  Inventor Assignee   Title
Buy PDF- 3pp US3920583  1975-11 Pugh  United Kingdom Atomic Energy Authority Supports for catalyst materials
Buy PDF- 6pp US3943067  1976-03 Chan et al.  Institut Francais du Petrole Process for manufacturing hydrogenation catalysts
Buy PDF- 6pp US3954601  1976-05 Cosyns et al.  Institut Francais du Petrole New process for hydrogenating aromatic hydrocarbons on sulfur resistant catalysts
Buy PDF- 6pp US4038214  1977-07 Gotoh et al.  Mitsubishi Jukogyo Kabushiki Kaisha Impregnated fibrous catalyst for treating exhaust gas of an internal combustion engine and process for making same
Buy PDF- 11pp US4046712  1977-09 Cairns et al.  United Kingdom Atomic Energy Authority Catalysts sputtered on substantially nonporous low surface area particulate supports
Buy PDF- 3pp US4102819  1978-07 Petrow et al.  Prototech, Inc. Finely particulated colloidal platinum, compound and sol for producing the same, and method of preparation
Buy PDF- 5pp US4233183  1980-11 Inaba et al.  Hitachi Shipbuilding & Engineering Co., Ltd. Process for producing plate-shaped denitrating catalyst
Buy PDF- 6pp US4399185  1983-08 Petrow  Prototech Company Low pressure-drop catalytic mat and method of preparing the same
Buy PDF- 7pp US4513101  1985-04 Peters et al.  W. R. Grace & Co. Small bead auto exhaust catalyst
Buy PDF- 5pp US4536482  1985-08 Carcia  E. I. Du Pont de Nemours and Company Catalyst composition
Buy PDF- 8pp US4791091  1988-12 Bricker et al.  Allied-Signal Inc. Catalyst for treatment of exhaust gases from internal combustion engines and method of manufacturing the catalyst
Buy PDF- 6pp US4849399  1989-07 Joy, III et al.  Allied-Signal Inc. Catalyst for the reduction of the ignition temperature of diesel soot
Buy PDF- 5pp US5053377  1991-10 Lerot  Solvay & Cie (Societe Anonyme) Catalytic compositions, process for obtaining them and process for hydrogenation of 1,1,2-trichloro-1,2,2-trifluoroethane by means of these compositions
Buy PDF- 4pp US5061464  1991-10 Cordonna, Jr. et al.  Johnson Matthey, Inc. Oxidation process and catalyst for use therefor
Buy PDF- 7pp US5106802  1992-04 Horiuch et al.  Nippon Shokubai Kagaku Kogyo Co., Ltd. Catalyst for purification of exhaust gas from diesel engine
Buy PDF- 5pp US5114902  1992-05 Schwarz et al.  Syracuse University Process of making supported catalyst
Buy PDF- 11pp US5330956  1994-07 Haga et al.  Hitachi, Ltd. Poisoning-resistant catalyst, process for production thereof, and process for using said catalyst
       
Foreign References:
Buy
PDF		 Publication Date IPC Code Assignee   Title
  JP54149389 1979-11       
Buy PDF GB1455248 1976-11  B01D 53/86 UNITED KINGDOM ATOMIC ENERGY AUTHORITY MANUFACTURE OF CATALYSTS 
Buy PDF GB1537839 1979-01  B01J 23/40 UNITED KINGDOM ATOMIC ENERGY AUTHORITY CATALYSTS COMPRISING A PARTICULATE SUBSTRATE WITH A SPUTTERED DEPOSIT OF CATALYTIC MATERIAL 


Other Abstract Info: CHEMABS 118(02)011013N DERABS C92-315981

Other References:
  • "Basic College Chemistry" by Joseph A Babor 2nd ed. 1953 Thomas Y Crowell New York p. 256 no month.
  • Hegedus, L. L., "Effects of Channel Geometry on the Performance of Catalytic Monoliths," Symposium on Catalytic Approaches to Environmental Control, American Chemical Society, Chicago Meeting, August 26-31, 1973, pp. 487-503.
  • Pereira, C. J., Kim, G., and Hegedus, L. L., "A Novel Catalyst Geometry for Automobile Emission Control," Catal. Rev. Sci. Engin, 26(3 & 4), pp. 503-523 (1984) no month. (21 pages)
  • Mondt, J. R., "Adapting the Heat and Mass Transfer Analogy to Model Performance of Automotive Catalytic Converters," Journal of Engineering for Gas Turbines and Power, vol. 109, pp. 200-206, (Apr. 1987). (7 pages)
  • Nicholas, D. M., Shah, Y. T., "Carbon Monoxide Oxidation over a Platinum-Porous Fiber Glass Supported Catalyst," Ind. Eng. Chem., Prod. Res. Dev., vol. 15, No. 1, pp. 35-40 (1976) no month. (6 pages) Cited by 2 patents
  • Nicholas, D. M., Shah, Y. T., Ziochower, I. A., "Oxidation of an Automobile Exhaust Gas Mixture by Fiber Catalysts," Ind. Eng. Chem., Prod. Res. Dev., vol. 15, No. 1, pp. 29-35 (1976) no month. (7 pages) Cited by 2 patents
  • Formenti, M., Juillet, F., Meriaudeau, P., Teichner, S. J., Vergnon, P., "Preparation in a Hydrogen--Oxygen Flame of Ultrafine Metal Oxide Particles," Journal of Colloid and Interface Science, vol. 29, No. 1, pp. 79-89 (1972) Apr. Cited by 7 patents
  • Helble, J. J., Sarofim, A. F., "Factors Determining the Primary Particle Size of Flame-Generated Inorganic Aerosols," Journal of Colloid and Interface Science, vol. 128, No. 2, pp. 348-170 (Mar. 1989). (15 pages) Cited by 4 patents
  • Nielsen, M. L., Hamilton, P. M. Walsh, R. J., "Ultrafine Metal Oxides by Decomposition of Salts in a Flame," Ultrafine Particles,W. E. Kuhn, Ed., John Wiley & Sons, Inc., New York, 1963, pp. 181-195. no month.
  • Ulrich, Gail. D., "Theory of Particle Formation and Growth in Oxide Synthesis Flames," Combusion Science and Tech., vol. 4, pp. 47-57 (1971) no month. Cited by 2 patents
  • Wei, J., "Catalysis for Motor Vehicle Emissions,"Advances in Catalysis,vol. 24, pp. 57-128 (1975) no month.
  • Andres, R. P., "Nucleation from the Vapor Phase," Ind. and Engineering Chemistry, vol. 57, No. 10, pp. 25-31 (Oct. 1965).


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