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Class Information
Number: 585/706
Name: Chemistry of hydrocarbon compounds > Saturated compound synthesis > With addition of reactor effluent component to catalyst as agent for rehabilitation or recycle
Description: Subject matter wherein a catalyst or catalyst component is rehabilitated (reactivated) and/or recycled to the paraffin synthesis reaction by adding to the catalytic material a portion of the reactor effluent, e.g., an unreacted feed fraction, etc., usually for use in transporting the catalyst.










Patents under this class:

Patent Number Title Of Patent Date Issued
7875754 Method of improving alkylate yield in an alkylation reaction Jan. 25, 2011
7820868 Transition metal substituted polyoxometalates and process for their preparation Oct. 26, 2010
6849769 Method for the continuous hydroformylation of polyakenes having 30 to 700 carbon atoms Feb. 1, 2005
6423880 Isopentane disproportionation Jul. 23, 2002
5489727 Isopentane disproportionation Feb. 6, 1996
4195191 Non-regenerative HF alkylation process Mar. 25, 1980
4144280 Vapor circulation in hydrocarbon conversion processes Mar. 13, 1979
4105704 Method for preparing and using a soluble metal pentafluoride-hydrogen fluoride catalyst Aug. 8, 1978
4073823 Alkylation process utilizing HF regenerator stream to a multi-tray main fractionator Feb. 14, 1978
4058575 Catalyst pretreatment with hydrocarbon feedstock Nov. 15, 1977
4048251 Autorefrigerated isomerization process Sep. 13, 1977
4046516 Hydrogen fluoride-catalyzed alkylation apparatus Sep. 6, 1977
4041101 HF alkylation process with addition of acid regenarator bottoms to the recycle isoparaffin stream Aug. 9, 1977
4018841 Process for alkylation of aromatics Apr. 19, 1977
4014953 Method for purifying HF catalyst in an isoparaffin-olefin alkylation Mar. 29, 1977
4010218 Maintaining HF solubility in alkylation isobutane recycle Mar. 1, 1977
4009222 Recovery of gaseous hydrogen fluoride stream in alkylation process Feb. 22, 1977
RE29084 Separate recycle of regenerated acid and of isoparaffin from HF catalyst regeneration zone Dec. 21, 1976
3976759 Process for removal of fluoride compounds from spent alkylation catalyst Aug. 24, 1976
3957902 Absorption of hydrogen fluoride in alkylated hydrocarbon product May. 18, 1976
3956416 Alkylation process utilizing HF regenerator stream to a multi-tray isoparaffin stripper May. 11, 1976
3956417 Isoparaffin-olefin alkylation utilizing a continuous sulfuric acid phase in a tubular reaction zone May. 11, 1976
3939059 Hydrocarbon conversion with an acidic sulfur-free multimetallic catalytic composite Feb. 17, 1976
3937743 Maintaining HF solubility in alkylation isobutane recycle Feb. 10, 1976
3936353 Conversion of carbohydrate materials to petroleum type hydrocarbons Feb. 3, 1976











 
 
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