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Browse by Category: Main > Chemistry
Class Information
Number: 502/55
Name: Catalyst, solid sorbent, or support therefor: product or process of making > Regenerating or rehabilitating catalyst or sorbent > Gas or vapor treating > Steam
Description: Process in which the treating fluid consists essentially of vaporized water.










Patents under this class:
1 2 3 4

Patent Number Title Of Patent Date Issued
6232254 Method of cleaning and/or regenerating wholly or partially de-activated catalysts for stack-gas nitrogen scrubbing May. 15, 2001
6217749 Process for hydrotreating a hydrocarbon feedstock and apparatus for carrying out same Apr. 17, 2001
6206941 Apparatus and process for carbonization and activation of carbonaceous materials Mar. 27, 2001
6171992 Treatment process for a methanol reforming catalyst therefor Jan. 9, 2001
6118037 Process for the removal of contaminant compounds containing one or more heteroatoms of sulfur, nitrogen and/or oxygen from hydrocarbon streams Sep. 12, 2000
6110857 Method of minimizing iron contamination during catalyst regeneration processes Aug. 29, 2000
6037291 Regeneration of adsorbers utilizing thermal oxidation of adsorbates Mar. 14, 2000
6034019 Method of minimizing iron contamination during catalyst regeneration processes Mar. 7, 2000
5994260 Cerium oxide with pores having a lamellar structure, preparation method therefor and use thereof in catalysis Nov. 30, 1999
5868922 Analyzer system for strippable hydrocarbon on FCC catalyst Feb. 9, 1999
5863417 Method for analyzing for strippable hydrocarbon on FCC catalyst Jan. 26, 1999
5741749 Regeneration of a titanium-containing molecular sieve Apr. 21, 1998
5739071 Method and apparatus for regeneratinig and stabilizing dehydrogenation catalysts Apr. 14, 1998
5686648 Continuous process for the isomerization of olefins with regeneration of the catalyst Nov. 11, 1997
5686369 Method and apparatus for treating dehydrogenation catalysts Nov. 11, 1997
5549814 FCC stripper with spoke arrangement for bi-directional catalyst stripping Aug. 27, 1996
5446000 Treatment for virgin phosphorous/vanadium oxidation catalysts Aug. 29, 1995
5407877 Catalyst treatment process Apr. 18, 1995
5380426 Active bed fluidized catalyst stripping Jan. 10, 1995
5316471 Method and apparatus for mass transfer in multiple hearth funaces May. 31, 1994
5292695 Process for reactivating particulate adsorbents Mar. 8, 1994
5260240 Process for the demetallization of FCC catalyst Nov. 9, 1993
5254513 Method for the reactivation of spent alumina-supported hydrotreating catalysts Oct. 19, 1993
5230872 Method and apparatus for regenerating activated carbon containing an adsorbed volatile organic absorbate Jul. 27, 1993
5227552 Process for hydrogenating alkenes in the presence of alkanes and a heterogeneous catalyst Jul. 13, 1993
5198398 Method for regenerating spent activated carbon and portable container for use therein Mar. 30, 1993
5190901 Method for producing active carbon using carbon-containing material Mar. 2, 1993
5173921 Apparatus and process for activation of carbon by electrical resistance heating in the presence of steam Dec. 22, 1992
5093293 Steam reactivation of zeolite catalyst used in producing para-dichlorobenzene Mar. 3, 1992
5089457 Process for activation of carbon by electrical resistance heating in the presence of steam Feb. 18, 1992
5047376 Curing combination for cationically polymerizable materials Sep. 10, 1991
5013698 Method of reducing carbon loss in regeneration process May. 7, 1991
4962272 Treatment of arsine removal catalysts Oct. 9, 1990
4957721 Process for regeneration of activated carbon Sep. 18, 1990
4946660 Desulphurization Aug. 7, 1990
4919790 Method for hydrocarbon dewaxing utilizing a reactivated spent MTG zeolite catalyst Apr. 24, 1990
4919692 Process for removing solvents and other contaminants from an inlet solvent laden air path Apr. 24, 1990
4914237 Alkylation of toluenediamine and para-phenylenediamine with isobutylene in the presence of acidic, crystalline molecular sieves Apr. 3, 1990
4861938 Chemical conversion process Aug. 29, 1989
4849095 Process for hydrogenating a hydrocarbonaceous charge stock Jul. 18, 1989
4795726 Method for the regeneration of spent alumina-based catalysts Jan. 3, 1989
4786402 Preparation of medicinal white oils and medicinal paraffins Nov. 22, 1988
4650779 Regeneration of pillared clays with gas containing a small amount of ammonia Mar. 17, 1987
4649127 Process for hydrogenative reactivation of spent catalysts Mar. 10, 1987
4623446 Closed cyclone FCC catalyst separation with stripping gas injection and direct steam injection Nov. 18, 1986
4615993 Method and device for carrying out gas/solid reactions particularly the activation and re-activation of activated carbon Oct. 7, 1986
4609456 Process for converting heavy petroleum residues to hydrogen and gaseous distillable hydrocarbons Sep. 2, 1986
4594146 Conversion with zeolite catalysts prepared by steam treatment Jun. 10, 1986
4589890 Heat recovery method and apparatus May. 20, 1986
4574044 Method for spent catalyst treating for fluidized catalytic cracking systems Mar. 4, 1986

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