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Browse by Category: Main > Chemistry
Class Information
Number: 502/52
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 > With control of oxygen content in oxidation gas
Description: Process in which the concentration of oxygen is maintained at or adjusted to a predetermined parameter.










Patents under this class:
1 2 3

Patent Number Title Of Patent Date Issued
8680000 Process and vessel for regenerating a reforming catalyst Mar. 25, 2014
8673801 Process for regenerating a reforming catalyst Mar. 18, 2014
8664139 Desulfurization method for LNT system Mar. 4, 2014
8435920 Cyclic catalytic upgrading of chemical species using metal oxide materials May. 7, 2013
8372770 Reformer regeneration process Feb. 12, 2013
8173567 Process for regenerating catalyst May. 8, 2012
7915191 Three-stage counter-current FCC regenerator Mar. 29, 2011
7824574 Cyclic catalytic upgrading of chemical species using metal oxide materials Nov. 2, 2010
7749762 Test methods for simulating FCC regenerator catalysis and catalyst deactivation Jul. 6, 2010
7687675 Stabilizing catalyst activity during catalyst regeneration Mar. 30, 2010
7625482 Nanoparticulate-catalyzed oxygen transfer processes Dec. 1, 2009
7619128 Stabilizing catalyst activity during catalyst regeneration Nov. 17, 2009
7582272 Method of treating a catalytic reactor system prior to reactor servicing Sep. 1, 2009
7479468 Integrating an air separation unit into an oxygenate-to-olefins reaction system Jan. 20, 2009
7419929 Critical phase alkylation process Sep. 2, 2008
7291311 Process for controlling a moving bed combustion zone and its use Nov. 6, 2007
7223710 Cyclic catalyst regeneration process using a circulating stream for desorption May. 29, 2007
7037871 Low-temperature regeneration of zeolite L using ozone May. 2, 2006
6987078 Alkylation and catalyst regenerative process Jan. 17, 2006
6958304 Method for regenerating a zeolite catalyst Oct. 25, 2005
6916756 Regeneration of a dehydrogenation catalyst Jul. 12, 2005
6790802 Cyclic catalyst regeneration process using adsorption and desorption on vent stream Sep. 14, 2004
6784132 Cyclic catalyst regeneration process using adsorption and desorption Aug. 31, 2004
6710002 Method for regenerating a zeolitic catalyst Mar. 23, 2004
6635795 Desulfurization with improved sorbent regeneration Oct. 21, 2003
6544410 Desulfurization with improved sorbent regeneration Apr. 8, 2003
6506702 Process and vessel for regeneration of a catalyst including monitoring and monitoring and control of combustion completion Jan. 14, 2003
6472340 Catalytic reforming catalyst activation Oct. 29, 2002
6380119 Method for regenerating a zeolitic catalyst Apr. 30, 2002
6239055 Process and vessel for regeneration of a catalyst including monitoring and monitoring and control of combustion completion May. 29, 2001
6187709 Palladium catalyst pre-oxidation to reduce light-off temperature Feb. 13, 2001
6133183 Process for regenerating a catalyst for the production of aromatic compounds or for reforming, with improved oxychlorination Oct. 17, 2000
6114265 Combustion control in a fluid catalytic cracking regenerator Sep. 5, 2000
6103652 Staged combustion process and apparatus for regenerating a reforming or aromatic compound production catalyst in a moving bed Aug. 15, 2000
6083862 Cyclic process for oxidation of calcium sulfide Jul. 4, 2000
5972208 FCC metals passivation additives applied to catalyst Oct. 26, 1999
5965473 Cyclic catalytic hydrocarbon conversion process with reduced chloride emissions Oct. 12, 1999
5908804 Reduction of emissions from FCC regenerators Jun. 1, 1999
5565089 Process for decoking catalysts Oct. 15, 1996
5560817 Hydrocarbon catalytic cracking process Oct. 1, 1996
5521134 Method for regenerating vanadium/phosphorus oxidation catalysts May. 28, 1996
5446000 Treatment for virgin phosphorous/vanadium oxidation catalysts Aug. 29, 1995
RE34996 Process for cracking metal-containing hydrocarbon feedstocks Jul. 18, 1995
5393717 Regeneration of noble metal containing zeolite catalysts via partial removal of carbonaceous deposits Feb. 28, 1995
5376607 Method for controlling moisture by coke composition Dec. 27, 1994
5365009 Heterogeneous alkylation and regeneration of alkylation catalysts Nov. 15, 1994
5362694 Sulfur dioxide regeneration of superacid catalyst Nov. 8, 1994
5348921 Method for reducing sulfate formation during regeneration of hot-gas desulfurization sorbents Sep. 20, 1994
5306682 Process for the regeneration of coke-deposited, crystalline silicate catalyst Apr. 26, 1994
5254516 Fluidizable zinc titanate materials with high chemical reactivity and attrition resistance Oct. 19, 1993

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