Resources Contact Us Home
Browse by Category: Main > Chemistry
Class Information
Number: 502/41
Name: Catalyst, solid sorbent, or support therefor: product or process of making > Regenerating or rehabilitating catalyst or sorbent > Gas or vapor treating > Treating with free oxygen containing gas > In gaseous suspension (e.g., fluidized bed, etc.)
Description: Process wherein particles of material are contacted by a column of gas rising at a velocity which supports them in a state of turbulence.

Sub-classes under this class:

Class Number Class Name Patents
502/42 And substantially complete oxidation of carbon monoxide to carbon dioxide within regeneration zone 137
502/44 Indirectly heating or cooling spent material within regeneration zone or prior to entry into regeneration zone 66
502/43 Plural distinct serial combustion stages 104

Patents under this class:
1 2 3 4 5

Patent Number Title Of Patent Date Issued
5132480 Hydrodealkylation process Jul. 21, 1992
5130012 Process and apparatus for reducing NO.sub.x emissions from high-efficiency FFC regenerators Jul. 14, 1992
5128292 Side mounted coolers with improved backmix cooling in FCC regeneration Jul. 7, 1992
5108968 Process for treating a material wherein the material is suspended in a gaseous atmosphere Apr. 28, 1992
5106799 Fluidized bed combustion process Apr. 21, 1992
5098553 Catalytic cracking process using regenerator with multiple catalyst outlets Mar. 24, 1992
5071802 Regeneration of catalysts by burning in the presence of alcohols Dec. 10, 1991
5062944 Catalytic cracking process with multiple catalyst outlets Nov. 5, 1991
5059305 Multistage FCC catalyst stripping Oct. 22, 1991
5047140 Process and apparatus for multi-stage regeneration of catalyst in a bubbling bed catalyst regenerator and side mounted fast fluidized bed regenerator Sep. 10, 1991
5037538 Catalytic cracking process with isolated catalyst for conversion of NO.sub. x Aug. 6, 1991
5030338 Conversion process using direct heating Jul. 9, 1991
5027893 Heat exchanger with backmix and flow-through particle cooling Jul. 2, 1991
5021144 Process for the reduction of NO.sub.X in an FCC regeneration system by select control of CO oxidation promoter in the regeneration zone Jun. 4, 1991
5017536 Catalyst regeneration including method of introducing oxygen into fluidized bed May. 21, 1991
5007999 Method for reducing sulfur oxide emission during an FCC operation Apr. 16, 1991
5002915 Process for catalyst regeneration with flue gas Mar. 26, 1991
5001095 Method and apparatus for controlling moisture by flue gas segregation Mar. 19, 1991
4997800 Fluidized bed combustion Mar. 5, 1991
4994424 Catalytic cracking process with improved flow in swirl regenerator Feb. 19, 1991
4989669 Apparatus and process for exchanging heat between solid particles and a heat exchange medium Feb. 5, 1991
4986897 Catalytic conversion of NO.sub.x with NH.sub.3 Jan. 22, 1991
4980052 Catalytic cracking of hydrocarbons Dec. 25, 1990
4973399 Catalytic cracking of hydrocarbons Nov. 27, 1990
4968403 High efficiency catalytic cracking stripping process Nov. 6, 1990
4968404 Process for decoking fluid catalytic cracking catalyst Nov. 6, 1990
4959334 Fluidized-bed catalyst regeneration Sep. 25, 1990
4958680 Apparatus for particulate solids regeneration Sep. 25, 1990
4954467 Passivation of metal contaminated cracking catalysts using aqueous suspensions of antimony oxide Sep. 4, 1990
4939314 Method for on-stream low-pressure regeneration of an oligomerization catalyst from a fluid-bed reactor operating at high pressure with hydrocarbons in a non-liquid phase Jul. 3, 1990
4939109 Passivation of metal contaminated cracking catalysts Jul. 3, 1990
4927795 Passivation of metal contaminated cracking catalysts May. 22, 1990
4923834 Side mounted coolers with improved backmix cooling in FCC regeneration May. 8, 1990
4881592 Heat exchanger with backmix and flow through particle cooling Nov. 21, 1989
4868144 Process to reduce NO.sub.x emissions from a fluid catalytic cracking unit Sep. 19, 1989
4851108 Hydrocarbon conversion-regeneration process using dilute and dense beds Jul. 25, 1989
4847054 Process for catalytically reducing NO contained in a gas Jul. 11, 1989
4843050 Catalyst regeneration Jun. 27, 1989
4840928 Conversion of alkanes to alkylenes in an external catalyst cooler for the regenerator of a FCC unit Jun. 20, 1989
4835128 Method for reducing the effects of metals on FCC catalysts May. 30, 1989
4812431 NOx control in fluidized bed combustion Mar. 14, 1989
4812430 NO.sub.x control during multistage combustion Mar. 14, 1989
4798711 Processes for removing nitrogen oxides, sulfur oxides and hydrogen sulfide from gas streams Jan. 17, 1989
4786622 Regeneration of fluid solid particles and separation of solid particles from combustion product flue gases Nov. 22, 1988
4757039 Dual function heat withdrawal in a fluidized catalytic cracking-regeneration process Jul. 12, 1988
4755282 Process for the reduction of NH.sub.3 in regeneration zone off gas by select recycle of certain-sized NH.sub.3 decomposition catalysts Jul. 5, 1988
4751210 Regeneration of an iron based natural catalyst used in the hydroconversion of heavy crudes and residues Jun. 14, 1988
4744962 Process for the reduction of ammonia in regeneration zone off gas by select addition of NO.sub.x to the regeneration zone or to the regeneration zone off gas May. 17, 1988
4689312 Procedure for regenerating platinum containing zeolite catalyst compositions Aug. 25, 1987
4670410 Method for reducing attrition of particulate matter in a chemical conversion process Jun. 2, 1987

1 2 3 4 5

  Recently Added Patents
Graphical multidimensional file management system and method
Amine functionalized polymer
Correction of non-uniformity of response in sensor arrays
Integrated circuit package system having perimeter paddle
Recording medium, reproduction device, message acquisition method, message acquisition program, integrated circuit
Backlight assembly and display apparatus having the same
Pair of headphones
  Randomly Featured Patents
Erosion control matting
Method for forming an epitaxial cobalt silicide layer on MOS devices
Pre-stressed rod joint
Intercostal tube
Earth retaining system
Method and apparatus for browser based advertisement insertion
Separator tank for separation of fluid comprising water, oil and gas
Method for obtaining recombinant hbsag
Coating and developing system
Automatic fastener assembling machine