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7410928 Highly active slurry catalyst composition  
The instant invention is directed to the preparation of a catalyst composition suitable for the hydroconversion of heavy oils. The catalyst composition is prepared by a series of steps, involving...
7402547 Systems and methods of producing a crude product  
Contact of a crude feed with one or more catalysts produces a total product that includes a crude product. The crude feed has a residue content of at least 0.2 grams of residue per gram of crude...
7396799 Highly active slurry catalyst composition  
The instant invention is directed to the preparation of a slurry catalyst composition. The slurry catalyst composition is prepared in a series of steps, involving mixing a Group VIB metal oxide,...
7396518 High-temperature denitration catalysts and processes for preparing same  
The present invention provides a method of high-temperature denitration characterized in that NOx in an exhaust gas is reduced at 450° to 800° C. using ammonia as a reducing agent in the presence...
7393809 Catalyst for purification of diesel engine exhaust gas  
This invention provides a new catalyst for purification of diesel engine exhaust gas comprising a carrier of at least one sulfur-resistant refractory oxide and at least one catalytic metal, wherein...
7229548 Process for upgrading naphtha  
A method for upgrading a naphtha feed to a naphtha product containing less than about 10 wppm of nitrogen and less than about 15 wppm sulfur, the method comprising contacting said naphtha feed with...
7214309 Process for upgrading heavy oil using a highly active slurry catalyst composition  
The instant invention is directed to a process for upgrading heavy oils using a slurry composition. The slurry composition is prepared in a series of steps, involving mixing a Group VIB metal oxide...
7132386 Preparation of amorphous sulfide sieves  
The present invention involves methods and compositions for synthesizing catalysts/porous materials. In some embodiments, the resulting materials are amorphous sulfide sieves that can be...
7125820 Non-noble metal catalysts for the oxygen reduction reaction  
Non-noble metal transition metal catalysts can replace platinum in the oxidation reduction reaction (ORR) used in electrochemical fuel cells. A Ru x Se catalyst is prepared with comparable...
7060650 Hydrogenation catalysts and methods  
Catalysts and composite materials comprised of catalytically active materials intercalated with alkali metals and/or optionally coated on alkali metals or combinations of alkali and alkali earth...
7008895 Method for producing an improved supported catalyst  
Highly active supported catalyst compositions and methods for producing more active supported catalyst compositions are disclosed. Said methods comprise steps for applying an adhesive coating of a...
6872678 Process for activating a catalyst containing an S-containing additive  
The present invention pertains to a process for activating a catalyst composition comprising at least one hydrogenation metal component of Group VI and/or Group VIII of the Periodic Table, and an...
6855661 Catalyst for purification of diesel engine exhaust gas  
This invention provides a new catalyst for purification of diesel engine exhaust gas comprising a carrier of at least one sulfur-resistant refractory oxide and at least one catalytic metal, wherein...
6800585 Catalyst for selective catalytic reduction of nitrogen oxides and a method for preparing the same  
Disclosed are a catalyst for selective catalytic reduction of nitrogen oxides and a method for preparing the same. Useful for the removal of nitrogen oxides is a catalyst prepared using spent...
6753291 Process for sulfiding an additive-containing catalyst  
The present invention pertains to a process for sulfiding a catalyst composition comprising at least one hydrogenation metal component of Group VI and/or Group VIII of the Periodic Table, and an...
6696388 Gel catalysts and process for preparing thereof  
A gel composition substantially contained within the pores of a solid material for use as a catalyst or as a catalyst support in dehydrogenation and dehydrocyclization processes.
6635599 Mixed metal catalyst, its preparation by co-precipitation, and its use  
The present invention relates to a process for the preparation of a hydroprocessing catalyst, to the catalyst composition obtainable by said process, and to the use of said catalyst composition in...
6602818 Method for preparing a catalyst for selective catalytic reduction of nitrogen oxides  
Disclosed are a catalyst for selective catalytic reduction of nitrogen oxides and a method for preparing the same. The catalyst is prepared using a spent catalyst discharged from a...
6540908 Process for sulfiding a hydrotreating catalyst comprising an organic compound comprising n and carbonyl  
The invention pertains to a process for preparing a sulfided hydrotreating catalyst in which a hydrotreating catalyst is subjected to a sulfidation step, wherein the hydrotreating catalyst...
6534437 Process for preparing a mixed metal catalyst composition  
The invention pertains to a process for preparing a catalyst composition comprising bulk catalyst particles comprising at least one Group VIII non-noble metal and at least two Group VIB metals. The...
6511934 Transition metal precursors containing sulfur ligands, and polyolefin production processes using them  
A catalyst composition for the polymerization of olefins is provided, comprising a transition metal precursor containing sulfur ligands and an activating co-catalyst.
6509291 Process for sulfiding a catalyst containing an S-containing additive  
The present invention pertains to a process for sulfiding a catalyst composition comprising at least one hydrogenation metal component of Group VI and/or Group VIII of the Periodic Table, and an...
6509289 Hydrodealkylation process and catalyst composition  
A catalyst composition and a process for hydrodealkylating a C 9 + aromatic compound such as, for example, 1,2,4-trimethylbenzene to a C 6 to C 8 aromatic hydrocarbon such as a xylene are...
6503864 Process for sulfiding catalyst in a column  
A process for the sulfiding of a hydrodesulfurization catalyst for example in a distillation column reactor. The catalyst in the distillation column reactor is first dried using nitrogen and the...
6492296 Two-step process for sulfiding a catalyst containing an S-containing additive  
The present invention pertains to a process for sulfiding a catalyst composition comprising at least one hydrogenation metal component of Group VI and/or Group VIII of the Periodic Table, and an...
6451729 Method for preparing a highly active, unsupported high surface-area MoS2 catalyst  
The present invention is a new and simple method of decomposing ammonium tetrathiomolybdate (ATTM) in an organic solvent with added water under H 2 pressure. Model compound reactions of...
6448198 Acid catalyst with a sulfated zirconia base and its uses  
The invention relates to an acid catalyst containing a substantial quantity of supported or mass sulfated zirconia and at least one hydrogenating transition metal. This catalyst is characterized by...
6429332 Catalyst for production of acrylic acid and method for production of acrylic acid by the use of the catalyst  
A catalyst for the production of acrylic acid by the vapor-phase catalytic oxidation of acrolein or acrolein-containing gas and a method for the production of acrylic acid by the use of this...
6417134 Ex-situ presulfuration in the presence of hydrocarbon molecule  
The invention relates to a process for the ex-situ presulfuration of a catalyst for the hydroconversion of hydrocarbons in the presence of hydrogen and of at least one sulfurated compound. It is...
6365542 Presulfurization method of hydrogenation catalyst  
A presulfurization method of hydrogenation catalyst comprises mixing an olefin-containing component, elemental sulfur and a promoter, heating the resultant mixture at 100-120° C. for more than 0.5...
6325920 Process for sulphurization of hydrotreating catalysts  
The invention relates to a process for the sulphurization of catalysts for the hydrotreating of hydrocarbon feedstocks. According to the invention, a small amount of at least one orthophthalic acid...
6316382 Process for sulphurizing catalysts by reduction followed by sulphurization  
The invention concerns a process for sulphurizing supported catalysts containing at least one element selected from group IIIB, including the lanthanides and actinides, group IVB, group VB and...
6297189 Sulfide catalysts for reducing SO2 to elemental sulfur  
A highly efficient sulfide catalyst for reducing sulfur dioxide to elemental sulfur, which maximizes the selectivity of elemental sulfur over byproducts and has a high conversion efficiency....
6291391 Method for presulfiding and preconditioning of residuum hydroconversion catalyst  
An improved method is described for presulfiding and preconditioning a residuum hydrotreating or hydrocracking catalyst as an integrated part of the hydroconversion process in which catalyst is...
6288006 Method for pre-sulphurization of catalysts  
For the presulphurization of catalysts based on metal oxides, intended especially for the hydrotreating of hydrocarbon feedstocks, at least one tertiary mercaptan (for example tert-dodecyl...
6281158 Preparation of a co-containing hydrotreating catalyst precursor and catalyst  
This invention provides a cobalt-containing catalyst precursor for the preparation of a catalyst for catalytic hydrotreatment of hydrocarbonaceous feedstocks, and for a method of making same.
6248687 Process for presulfurizing a desulfurization catalyst used in a hydrodesulfurization unit of petroleum refinery and presulfurization promoter  
Presulfurizing process and presulfurization promoter for a desulfurization catalyst to be used in a hydrodesulfurization unit of petroleum refinery of high molecular hydrocarbons, in which fresh...
6242378 Process for sulphurizing catalysts in the presence of carbon and elemental sulphur  
The invention concerns a process for sulphurising supported catalysts containing at least one element selected from group IIIB, including the lanthanides and actinides, group IVB and group VB, said...
6231750 Hydrocracking catalyst comprising a beta zeolite and a group VB element  
The invention provides a hydrocracking catalyst comprising at least one mineral matrix, at least one beta zeolite, at least one group VB element or at least one mixed sulphide phase comprising...
6218333 Preparation of a hydrotreating catalyst  
There is provided a process for preparing a catalyst wherein the volatile content of an impregnated support is reduced in one or more steps, wherein at least one volatile content reduction step is...
6197718 Catalyst activation method for selective cat naphtha hydrodesulfurization  
An improved catalyst activation process for olefinic naphtha hydrodesulfurization. This process maintains the sulfur removal activity of the catalyst while reducing the olefin saturation activity.
6180555 Acid catalyst with a sulfated zirconia base and its uses  
The invention relates to an acid catalyst containing a substantial quantity of supported or mass sulfated zirconia and at least one hydrogenating transition metal. This catalyst is characterized by...
6156693 Method for preparing a highly active, unsupported high-surface-area ub . MoS.s2 catalyst  
The present invention is a new and simple method of decomposing ammonium tetrathiomolybdate (ATTM) in an organic solvent with added water under H 2 pressure. Model compound reactions of...
6110860 Catalyst for purifying exhaust gas, process for production thereof, exhaust gas purifying filter, and exhaust gas purifying apparatus  
A catalyst for exhaust gas purification characterized by high catalytic activity, heat resistance, and toxin resistance includes a metal oxide and at least one alkali metal sulfate or at least one...
6100216 Process for incorporating sulfur into the pores of a hydrocarbon treatment catalyst  
A process for presulfurizing a hydrocarbon treatment catalyst and/or for preconditioning a catalyst, comprising one or two stages of incorporating sulfur into the pores of a hydrocarbon conversion...
6077807 Method of treating spontaneously combustible catalysts  
Self-heating characteristics of a spontaneously combustible catalyst are reduced by treating spontaneously combustible catalysts with oxygen-containing hydrocarbons having at least 12 carbon atoms....
6071402 Hydrodefining and hydrocracking catalyst comprising a mixed sulphide comprising sulphur, at least one group VB element and at least one group VIB element  
The present invention concerns a hydrorefining and/or hydrocracking catalyst for hydrocarbon feeds, comprising at least one mixed sulphide comprising sulphur, at least one group VB element,...
6059956 Off-site pretreatment of a hydrocarbon treatment catalyst  
A process comprising incorporation of a sulphuration agent into a hydrocarbon treatment catalyst to a greater or lesser extent into the pores of the catalyst, the agent being selected from, for...
6017845 Microwave heated catalyst and process  
A process comprises providing a catalyst comprising a support, a microwave absorption material, and a catalytically active phase; heating the catalyst with a source of microwave energy which is...
5990037 Method of treating spontaneously combustible catalysts  
Self-heating characteristics of a spontaneously combustible catalyst are reduced by treating spontaneously combustible catalysts with oxygen-containing hydrocarbons having at least 12 carbon atoms....
Matches 1 - 50 out of 424 1 2 3 4 5 6 7 8 9 >