Did You Know...
...that after Parker Brothers executives turned down the game of Monopoly because it had "52 fundamental errors" (including taking too long to play), a copy of the game wound up in the home of the company president who stayed up until 1 a.m. to finish playing it? He was so impressed by the game that the next day he wrote to inventor Charles Darrow and offered to buy it!
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| Number | Title | Issue Date |
| 7612245 | Method for selective hydrogenation of polyunsaturated compounds into monounsaturated compounds using a homogeneous catalyst A process for the selective hydrogenation of diolefinic compounds to mono-olefinic compounds uses a catalyst composition comprising at least one salt of a transition metal from groups IB, IIB, VB, VIB, VIIB and VIII of the periodic table, at least one ligand and at ... | 11/03/2009 |
| 7582805 | Supported catalyst for the selective hydrogenation of alkynes and dienes The invention relates to a process for the selective hydrogenation of alkynes and dienes in C2-C5+-olefin mixtures,—in C2- or C3-streams of the olefin preparation by cracking. The method comprises conducting the hydrogenation in the presence of a cataly... | 09/01/2009 |
| 7550637 | Catalyst and process for selective hydrogenation A selective hydrogenation catalyst composition comprises at least two different metal components selected from Groups 8 to 10 of the Periodic Table of Elements, one of which may be rhodium, and at least one metal component selected from Group 13 of the Periodic Tabl... | 06/23/2009 |
| 7462751 | Catalyst 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 ... | 12/09/2008 |
| 7408090 | Method of operating downflow boiling point reactors in the selective hydrogenation of acetylenes and dienes Acetylenes and dienes in a stream containing hydrogen, methane, C2-C6 olefins and paraffins, C2-C6 acetylenes and dienes, benzene, toluene, xylenes, and other C6+ components are hydrogenated in a downflow boilin... | 08/05/2008 |
| 7408091 | Process for liquid phase hydrogenation A process and catalyst 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 ... | 08/05/2008 |
| 7390933 | Reduction of the Bromine Index of linear alkylbenzenes In a process for reducing the Bromine Index of a feed containing a linear alkylbenzene and bromine-reactive olefinic hydrocarbon contaminants, the feed is contacted under conditions effective to remove bromine-reactive olefinic hydrocarbon contaminants with a cataly... | 06/24/2008 |
| 7368617 | Selective hydrogenation of acetylenes and dienes in a hydrocarbon stream Acetylenes and dienes in a stream containing hydrogen, methane, C2-C6 olefins and paraffins, C2-C6 acetylenes and dienes, benzene, toluene, xylenes, and other C6+ components are hydrogenated in a downflow boilin... | 05/06/2008 |
| 7341977 | Method of sorbing sulfur compounds using nanocrystalline mesoporous metal oxides Compounds and methods for sorbing organosulfur compounds from fluids are provided. Generally, compounds according to the present invention comprise mesoporous, nanocrystalline metal oxides. Preferred metal oxide compounds either exhibit soft Lewis acid properties or... | 03/11/2008 |
| 7319176 | Selective 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 |
| 7247760 | Hydrogenation 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 |
| 7208646 | Selective 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 |
| 7199076 | Methods 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 |
| 7141709 | Methods 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 |
| 7119240 | Method 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 |
| 7105711 | Process for the selective hydrogenation of phenylacetylene A process for the reduction of a phenylacetylene contaminant in the presence of a styrene monomer. A styrene monomer stream containing a minor amount of phenylacetylene is supplied to a hydrogenation reactor. A hydrogenation gas comprising hydrogen is also supplied ... | 09/12/2006 |
| 7087155 | Production 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 |
| 7078577 | DihydroDicyclopentadiene 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 |
| 7045670 | Process 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 |
| 7041860 | Process 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 |
| 7038097 | Dual 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 |
| 7038096 | Hydrocarbon 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 |
| 7009085 | Selective hydrogenation catalyst and processes therefor and therewith A catalyst composition comprising an inorganic support material, a palladium component, a silver component, and a promoter component having the formula XYFn, wherein X is an alkaline metal, Y is an element selected from the group consisting of antimony, p... | 03/07/2006 |
| 6949686 | Pyrolysis gasoline stabilization A method for stabilizing pyrolysis gasoline by hydrogenating same over a Group VIII metal catalyst wherein the catalyst is promoted against poisoning by at least one metal from Groups I B, VI B, VII B, and zinc. Poisons preferentially bind with the promoters and not... | 09/27/2005 |
| 6867338 | Selective hydrogenation of acetylenes and dienes in a hydrocarbon stream Acetylenes and dienes in a stream containing hydrogen, methane, C2-C6 olefins and paraffins, C2-C6 acetylenes and dienes, benzene, toluene, xylenes, and other C6+ components are hydrogenated in a downflow boilin... | 03/15/2005 |
| 6858766 | Process for selectively hydrogenating mixed phase front end C2-C10 greater unsaturated hydrocarbons The present invention provides a process for selectively hydrogenating C2-C10 greater unsaturated hydrocarbons (acetylenes and diolefins) at the upstream side of a front depropanizer or front deethanizer in an olefin production plant. After pas... | 02/22/2005 |
| 6830678 | Process of desulphurizing gasoline comprising desulphurization of the heavy and intermediate fractions resulting from fractionation into at least three cuts The invention relates to a process of producing gasoline with a low sulphur content from a feedstock containing sulphur. This process comprises at least one step a1 of selectively hydrogenating the diolefins and acetylenic compounds, at least one separation of the g... | 12/14/2004 |
| 6747181 | Process for the hydrogenation of phenyl acetylene in a styrene-containing medium with the aid of a catalyst The invention relates to a process for the hydrogenation of phenyl acetylene in a styrene-containing medium with the aid of a supported nickel catalyst with a nickel content of 10-25 wt. %. This process is by preference used for the hydrogenation of phenyl acetylene... | 06/08/2004 |
| 6740787 | Process for treatment of C4 hydrocarbons that comprise butadiene and acetylene compounds that comprise stages for distillation and selective hydrogenation A process for treatment of a batch with four carbon atoms that contains diene compounds and a minor portion of acetylene compounds is described. A portion of the fluid that circulates in a distillation zone that is enriched with acetylene compounds is drawn off late... | 05/25/2004 |
| 6734328 | Process 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... | 05/11/2004 |
| 6717022 | Process for selective hydrogenation of alkynes and catalyst therefor Acetylenic compounds in olefin streams such as mixed 1,3-butadiene were selectively hydrogenated over the supported copper catalysts on highly porous supports such as alumina, silica, etc. The preferred supports have the average pore diameter larger than about 200 â... | 04/06/2004 |
| 6689926 | Process for purifying styrene monomer feedstock prior to polymerization A process is disclosed which provides for the reduction of phenylacetylene levels in styrene monomer feedstreams, which process utilizes a normal styrene inhibitor additive, such as an hydroxylamine, injected into the styrene monomer feedstream immediatel... | 02/10/2004 |
| 6486369 | Process for selective hydrogenation of an olefinic feed stream containing acetylenic and diolefinic impurities A process for selective hydrogenation of a C2 and C3 olefinic feed stream containing acetylenic and diolefinic impurities whereby the acetylenes and diolefins impurities are selectively hydrogenated concurrently in a vapor phase proc... | 11/26/2002 |
| 6482997 | Conversion reactions for organic compounds In a catalyst process involving a conversion reaction for organic compounds, e.g. hydrogenations, the catalyst contains at least one support and at least one metal, and is characterized in that it has particles of an average size greater than approximatel... | 11/19/2002 |
| 6469223 | Selective hydrogenation of dienes A process is provided for the selective hydrogenation of dienes from a mixed hydrocarbon stream. The catalyst contains nickel in an amount between approximately 5 and 15 weight percent and, alternatively, may contain nickel oxide and molybdenum oxide in a... | 10/22/2002 |
| 6462244 | Hydrogenation catalysts A hydrogenation catalyst which is sulfur tolerant and which includes from about 0.1 to about 1 percent platinum by weight and from 0.2 to about 2 percent by weight palladium on a predominantly theta alumina carrier. Also disclosed is a process for the man... | 10/08/2002 |
| 6388162 | Diene removal from an olefin feedstock The invention pertains to a process of removing dienes from an olefin feedstock. A preferred olefin feedstock is for the production of primary alcohol compositions by skeletal isomerization of the olefins followed by hydroformylation. In this preferred em... | 05/14/2002 |
| 6329561 | Impurities removal The method of producing high purity isooctane useful as a gasoline blending component from diisobutylene or isooctane contaminated with minor amounts of oxygenated impurities which comprises converting the impurities at conditions of elevated temperature ... | 12/11/2001 |
| 6169218 | Selective hydrogenation of highly unsaturated compounds in hydrocarbon streams A process for the selective hydrogenation of the diolefins and acetylenic compounds in a olefin rich aliphatic hydrocarbon streams is disclosed wherein the selective hydrogenation is carried out at 40 to 300° F. under low hydrogen partial pressure in the... | 01/02/2001 |
| 6127588 | Hydrocarbon hydrogenation catalyst and process A supported hydrogenation catalyst composition is disclosed which comprises palladium, an inorganic support such as alumina, and a selectivity enhancer selected from the group consisting of silver, phosphorus, sulfur, and combinations of two or more there... | 10/03/2000 |
