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Class 585/260 - Using catalyst or support of defined structure, surface area, or pore size


Subclass of Class 585 - Chemistry of hydrocarbon compounds
Definition: Subject matter where the hydrogenation of a bond in a contaminant
No. of patents: 158
Last issue date: 10/19/2010


1        
NumberTitleIssue Date
7816571Selective hydrogenation process using layered catalyst composition
The use of a layered catalyst composition to selectively hydrogenate C5-C11 diolefins in a hydrocarbon mixture to one or more respective C5-C11 monoolefins is disclosed. The layered catalyst comprises an inner core having ...
10/19/2010
7408089Ni catalyst, process for making catalysts and selective hydrogenation process
More selective and efficient Ni hydrotreating catalysts are those which contain more than about 60% of the Ni content on the peripheral surface of porous supports, such as extruded alumina, which may be obtained by spraying an atomized solution of a Ni compound onto...
08/05/2008
7368625Catalysts with high cobalt surface area
A catalyst or precursor thereto comprising cobalt and/or a cobalt compound on a transition alumina support having a total cobalt content of at least 41% by weight and a cobalt surface area, after reduction, greater than 25 m2 per gram of total cobalt. The...
05/06/2008
7351679Fischer-tropsch catalyst, preparation, and use thereof
Embodiments include a catalyst for use in a Fischer-Tropsch synthesis reaction which comprises cobalt supported on alumina. In some embodiments, the alumina support may have specific surface area of less than 50 m2/g and/or may be least 10% α-alumina.
04/01/2008
7351327Process for the selective desulfurization of a mid range gasoline cut
A process for concurrently fractionating and treating a full range naphtha stream. The full boiling range naphtha stream is first subjected to simultaneous thioetherification and splitting into a light boiling range naphtha, an intermediate boiling range naphtha and...
04/01/2008
7335802Methods of preparing branched aliphatic alcohols
Systems and methods to produced branched aliphatic alcohols are described. Systems may include a dehydrogenation-isomerization unit, an olefin dimerization unit, an olefin isomerization unit, a hydroformylation unit, a dehydrogenation unit, a hydrogenation unit and/...
02/26/2008
7319176Selective hydrogenation of acetylenes
A process for removing acetylenic compounds using unsulfided metallic nickel or unsulfided metallic nickel modified with metallic Mo, Re, Bi or mixtures in which the catalyst is used alone or is used in combination with other acetylenic selective catalysts. The unsu...
01/15/2008
7302812Process for production of isotopes
A process for producing an isotopically enriched compound of a desired isotope includes (a) providing a cryogenic reaction zone containing a catalyst adapted to catalyze an isotope exchange reaction at a cryogenic reaction temperature, (b) feeding to the cryogenic r...
12/04/2007
7301062Process for the selective hydrogenation of alkynes and/or dienes in an olefin-containing hydrocarbon stream
A process for the selective hydrogenation of one or more alkyne and/or one or more diene in an olefin-containing hydrocarbon feed includes contacting the hydrocarbon feed with a catalyst under selective hydrogenation conditions, the catalyst including from about 0.0...
11/27/2007
7297824Ni hydrogenation catalysts, manufacture and use
Improved Ni catalysts for hydrogenation reactions are disclosed. The catalysts are useful for hydrogenation such as selective hydrogenation of acetylenic impurities in crude olefin and diolefin streams. The catalysts are prepared by depositing nickel on a porous sup...
11/20/2007
7287745Liquid-continuous column distillation
Bubble columns fractionate with vapor-liquid mass transfer efficiencies approaching that of distillation towers when vapor velocities in excess of 50% of jet flood are used. If the vapor velocities are pushed above about 70% of jet flood then the distillation perfor...
10/30/2007
7288686Hydrogenation catalyst and hydrogenation process
A supported hydrogenation catalyst comprising (1)Pd or a Group 8 metal comprising Pd and one other Group 8 metal, preferably a Group 8 metal selected from Pt, Ir, Ru, Co or Ni, and (2) at least two metals selected from Ag, Zn or Bi, preferably Ag and at least one of...
10/30/2007
7256153Carrier catalytic converter for the selective hydrogenation of alkines and dienes
A catalyst for the selective hydrogenation of alkynes and dienes in C2-C5+-olefin mixtures is described. These catalysts contain (a) a metal of the tenth group of the Periodic Table, (b) a metal o...
08/14/2007
7250544Process for selective hydrogenation using a catalytic reactor with a hydrogen-selective membrane
A process for selective hydrogenation of polyunsaturated compounds that are contained in a hydrocarbon feedstock in the presence of a catalytic reactor with a hydrogen-selective membrane comprises a) the introduction of said feedstock co-mixed with a first amount hy...
07/31/2007
7247760Hydrogenation palladium-silver catalyst and methods
A catalyst composition comprising palladium, silver and a support material (preferably alumina) is contacted with a liquid composition comprising an iodide component such as ammonium iodide, and the catalyst is then calcined. An improved process for hydrogenation, e...
07/24/2007
7227047Butadiene and isobutylene removal from olefinic streams
A process is disclosed for selectively removing isobutene and butadiene from a stream, the process comprising contacting the stream with a hydrogenation catalyst to hydrogenate butadiene and an oligomerization catalyst to oligomerize isobutene. ...
06/05/2007
7220700Catalyst and process for selective hydrogenation
A selective hydrogenation catalyst composition comprises a support; a first metal component comprising rhodium; and a second metal component comprising a metal other than rhodium and selected from Groups 1 to 15 of the Periodic Table of Elements, wherein said first ...
05/22/2007
7220701Catalyst and process for selective hydrogenation
A selective hydrogenation catalyst composition comprises a rhodium component present in an amount such that the catalyst composition comprises less than 3.0% of rhodium by weight of the total catalyst composition; and an indium component present in an amount such th...
05/22/2007
7208646Selective hydrogenation of butadiene
A process for the selective hydrogenation of dienes in mixed streams of olefin containing hydrocarbons, such as butadiene in a mixed C4 stream with minimum loss of monoolefins is disclosed wherein the reactor is operated at conditions which induce pulse f...
04/24/2007
7199273Selective hydrogenation of alkynes and/or diolefins
A process for selectively removing alkynes and/or diolefins from a feedstock also containing olefins comprises contacting the feedstock with hydrogen in the presence of a catalyst composition. The catalyst composition comprises at least one metal component selected ...
04/03/2007
7199076Methods of making and using a selective hydrogenation catalyst
In an embodiment, a method of hydrogenating a highly unsaturated hydrocarbon to an unsaturated hydrocarbon includes contacting the highly unsaturated hydrocarbon with a catalyst in the presence of hydrogen. The catalyst comprises palladium and an inorganic support h...
04/03/2007
7169736Catalyst for hydrogenation of unsaturated hydrocarbons
A catalyst is described for hydrogenation of unsaturated hydrocarbons, containing catalytically active amounts of Pd and optionally Ag in a support. The catalyst is characterized by the fact that the support represents a shaped body with a trilobal cross section, th...
01/30/2007
7153807Catalysts for selective hydrogenation of alkynes and alkadienes
Catalysts have been discovered that are useful in hydrogenation reactions, and particularly for the selective hydrogenation of acetylene and/or methyl acetylene (MA) and/or propadiene (PD) in light olefin-rich feedstreams. These catalysts can selectively hydrogenate...
12/26/2006
7145049Oligomerization process
Alkenes, such as normal butenes in a mixed C4 stream are oligomerized, preferably to dimers, which are dimerized in a distillation column reactor over ZSM-57 zeolite catalyst at high conversions and high selectivity to octenes. Prior to oligomerization th...
12/05/2006
7141709Methods and systems of producing monoolefins by the extraction-hydrogenation of highly unsaturated hydrocarbons
In some embodiments, methods of producing monoolefins include contacting an olefin stream with a polar solvent to extract a highly unsaturated hydrocarbon from the olefin stream, followed by contacting the polar solvent with a hydrogenation catalyst in the presence ...
11/28/2006
7119240Method for converting natural gas to olefins
A process for converting natural gas to an olefin includes heating the gas to a selected range of temperature to convert a fraction of the gas stream to reactive hydrocarbons, primarily ethylene or acetylene, and reacting with hydrogen in the presence of a catalyst ...
10/10/2006
7109388Process for the production of catalyst packing, reactor containing catalyst packing, and the use thereof
The invention relates to catalyst packing and a production process for catalyst packing in which a fabricated woven or knitted fabric in the form of continuous web goods is shaped to give a package by stacking a plurality of layers, and segments (S) are cut out of t...
09/19/2006
7102038Phosphorous removal and diene removal, when using diene sensitive catalyst, during conversion of olefins to branched primary alcohols
A process for making a selectively branched alcohol composition contacting a lower olefin feed comprising linear olefins having at least 3 carbon atoms and a concentration of phosphorous-containing compounds with a sorbent comprising a metal or metal oxide on a supp...
09/05/2006
7090766Process for ultra low sulfur gasoline
A process wherein all of the unsaturates within a cracked naphtha stream are substantially hydrogenated to alkanes and the olefin depleted stream is then subjected to hydrodesulfurization to achieve the desired sulfur levels without the formation of recombinant merc...
08/15/2006
7087794Oxygenate conversion in the presence of highly unsaturated compounds
The present invention provides a process for treating a stream, say, an olefins stream, e.g., propylene, containing at least one ether, e.g., dimethyl ether, and/or at least one of an alkyne and an alkadiene, e.g., methyl acetylene and propadiene, typically present ...
08/08/2006
7087155Production of olefins
A process for cracking an olefin-rich hydrocarbon feedstock which is selective towards light olefins in the effluent, the process comprising contacting a hydrocarbon feedstock containing olefins having a first composition of at least one olefinic component with a cr...
08/08/2006
7078577DihydroDicyclopentadiene production
A method for forming dihydroDicyclopentadiene comprises mixing a source of dicyclopentadiene with at least one solvent and at least one reactive component in the presence of a source of hydrogen and a selective hydrogenation catalyst, the solvent and reactive compon...
07/18/2006
7070690Process for conversion of hydrocarbons on a catalyst with controlled acidity
The invention relates to a process for conversion of hydrocarbons in the presence of at least one catalyst with controlled acidity, characterized in that the level of activity of said catalyst in isomerization of the cyclohexane is less than 0.10 and/or in that the ...
07/04/2006
7045669Dual pressure catalytic distillation hydrogenation column system for the front end of an ethylene plant
The charge gas from the thermal cracking of a hydrocarbon feedstock is processed in a front-end catalytic distillation hydrogenation system of an olefins plant to more effectively recover ethylene and propylene product and to process the by-products. The rate of fou...
05/16/2006
7045670Process for liquid phase hydrogenation
A process for the liquid phase selective hydrogenation of alkynes to alkenes with high selectivity to alkenes relative to alkanes, high alkyne conversion, and sustained catalytic activity comprising a reactant comprising an alkyne and a non-hydrocarbon solvent/absor...
05/16/2006
7041860Process for the selective hydrogenation of alkynes
An improved selective hydrogenation process for removing acetylenic impurities such as vinyl acetylene, ethyl acetylene, propyl acetylene and acetylene in a steam cracked crude butadiene stream by selective hydrogenation is carried out in two steps. In the first ste...
05/09/2006
7041616Enhanced selectivity of zeolites by controlled carbon deposition
A method for carbonizing a zeolite comprises depositing a carbon coating on the zeolite pores by flowing an inert carrier gas stream containing isoprene through a regenerated zeolite at elevated temperature. The carbonized zeolite is useful for the separation of lig...
05/09/2006
7038096Hydrocarbon hydrogenation catalyst composition, a process of treating such catalyst composition, and a process of using such catalyst composition
A process of treating a catalyst composition containing palladium, an inorganic support, and a catalyst component, such as silver and/or a modifier such as alkali metal fluoride, is provided. The process involves contacting a catalyst composition with a first treati...
05/02/2006
7038097Dual bed process using two different catalysts for selective hydrogenation of acetylene and dienes
It has been discovered that a dual bed process using two different catalysts for the selective hydrogenation of acetylene and/or methyl acetylene (MA) and/or propadiene (PD) in a light olefin-rich feedstream can be accomplished with less selectivity to making oligom...
05/02/2006
7025872Process for obtaining a feedstock that can be used in an etherification unit
Process for obtaining a hydrocarbon fraction that can be used as a feedstock of an etherification unit and that contains a small amount of diene compounds, nitrogen-containing compounds and sulfur-containing compounds, starting from an initial hydrocarbon feedstock ...
04/11/2006
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