Class / Patent application number | Description | Number of patent applications / Date published |
585415000 |
Product compound has more C atoms than feed compound, e.g., cyclic polymerization, etc.
| 46 |
585418000 |
Using transition metal-containing catalyst
| 28 |
585408000 |
Nonhydrocarbon feed
| 25 |
585412000 |
Plural stage, with moving catalyst or with specified flow rate or procedure
| 9 |
585413000 |
With preliminary treatment of feed or plural separation procedures | 2 |
20100048967 | PROCESS FOR THE CONVERSION OF LOWER ALKANES TO ETHYLENE AND AROMATIC HYDROCARBONS - The present invention provides an integrated process for producing ethylene and aromatic hydrocarbons, specifically benzene, which comprises: (a) introducing a mixed lower alkane feed into a cracker to produce a product mixture which is comprised of ethylene and C | 02-25-2010 |
20100048968 | PROCESS FOR THE CONVERSION OF LOWER ALKANES TO AROMATIC HYDROCARBONS AND ETHYLENE - The present invention provides an integrated process for producing ethylene and aromatic hydrocarbons, specifically benzene, which comprises: (a) contacting a mixed lower alkane feed with an aromatic hydrocarbon conversion catalyst to produce a product mixture which is comprised of aromatic reaction products including benzene, unreacted ethane and non-aromatic products, (b) separating and recovering the benzene and any other aromatic reaction products, (c) separating and recovering the ethane, and (d) introducing the ethane into a cracker to produce ethylene. | 02-25-2010 |
585410000 |
Aromatic feed | 1 |
20110060177 | Aromatic Hydrocarbon Purification Method - In a process for reducing the amount of benzene produced in a startup procedure for purification of an aromatic feedstream, the improvement comprising a start-up procedure including contacting said catalyst with said feedstream at elevated LHSV for a period of time sufficient to reduce benzene and/or toluene levels to a predetermined level, and proceeding under normal operational conditions. | 03-10-2011 |
Entries |
Document | Title | Date |
20080255398 | Aromatization of alkanes using a germanium-zeolite catalyst - This invention relates to a process for the aromatization of C | 10-16-2008 |
20090177020 | Process for Production of Aromatic Hydrocarbons - The present invention provides a process for producing aromatic hydrocarbons at a sufficiently high yield, from a light hydrocarbon containing mainly hydrocarbons having 7 or fewer carbon atoms. The process of the present invention comprises bringing a feedstock containing mainly light hydrocarbons having 2 to 7 carbon atoms into contact with a catalyst composition comprising at least a gallium-containing crystalline aluminosilicate wherein a reaction step for converting the feedstock to aromatic hydrocarbons comprises at least two or more reaction layers formed of the catalyst composition, arranged in series and heating means arranged either between or in the reaction layers, the amount of the catalyst in the first stage reaction layer is 30 percent by volume or less of the total catalyst volume, and/or the yield of the aromatics in the product outflowing from the first reaction layer is from 0.5 to 30 percent by mass. | 07-09-2009 |
20100029999 | ZEOLITE-BINDER CATALYST COMPOSITION - Catalyst composition comprising a zeolite and a binder, wherein the zeolite is a Ga containing zeolite and the binder is a La modified kaolin and process for converting lower alkanes to aromatic hydrocarbons, using said catalyst composition. Preferably the aromatic hydrocarbons consist of at least 45 wt % of benzene, toluene and xylenes. | 02-04-2010 |
20110060176 | METHOD FOR THE DEHYDROAROMATISATION OF MIXTURES CONTAINING METHANE BY REGENERATING THE CORRESPONDING CATALYSTS THAT ARE DEVOID OF PRECIOUS METAL - The present invention relates to a process for nonoxidative dehydroaromatization of aliphatic hydrocarbons by converting a reactant stream comprising aliphatic hydrocarbons in the presence of a catalyst which comprises at least one metallosilicate as a support, at least one element selected from the group of Mo, W and Re as an active component and at least one further transition metal which is not a noble metal as a dopant, wherein the catalyst is regenerated regularly with hydrogen under nonoxidative conditions. The further transition metal used is preferably Fe, Ni, Cu and Co. | 03-10-2011 |
20110201859 | METHOD FOR PRODUCING CRYSTALLINE ZEOLITE-LIKE GALLO-ALUMINIUM SILICATES - A method for producing crystalline gallo-aluminium silicates, comprising the heating of a reaction mixture in a solvent, wherein the reaction mixture contains a silicon source, an aluminium source, a gallium source and a mineralization agent, wherein the reaction mixture comprises purely inorganic components and is free of nitrogen compounds. Further, aluminium silicates produced by the method according to the invention as well as the use thereof as catalyst. | 08-18-2011 |
20120029256 | PROCESS FOR THE CONVERSION OF LOWER ALKANES TO AROMATIC HYDROCARBONS - A process is provided for producing aromatic hydrocarbons which comprises: (a) contacting a lower alkane feed with a solid particulate aromatic hydrocarbon conversion catalyst in a fluidized bed reaction zone to produce aromatic hydrocarbons and other products, whereby the catalyst is at least partly deactivated by the formation of undesirable coke deposits, (b) continuously withdrawing a portion of the catalyst from the reaction zone, regenerating it in a regeneration zone and returning regenerated catalyst to the reaction zone, (c) maintaining the heat balance between the reaction zone and the regeneration zone by diluting the catalyst particles with particles of a catalytically inactive solid with about the same or improved specific heat and thermal conductivity relative to the catalyst, (d) separating aromatic hydrocarbons from the other products and unreacted lower alkanes, and (e) optionally recycling unreacted lower alkanes to the reaction zone. | 02-02-2012 |
20130060072 | Processed Support and Methods of Making and Using Same - A method for removing tightly bound sodium from a zeolitic support comprising contacting the support with a sodium specific removal agent to produce a treated support. A method comprising providing an aromatization catalyst comprising a treated support, and contacting the aromatization catalyst with a hydrocarbon feed in a reaction zone under conditions suitable for the production of an aromatic product. A catalyst support comprising an L-zeolite having less than 0.35 wt. % sodium. | 03-07-2013 |
20130096358 | PROCESS FOR PRODUCING PHOSPHORUS MODIFIED ZEOLITE CATALYSTS - In a process for producing a phosphorus-modified zeolite catalyst, an aqueous reaction mixture comprising a source of silica and a source of an organic directing agent effective to direct the synthesis of a desired zeolite is heated at a temperature and for a time sufficient to produce crystals of the desired zeolite. Wet zeolite crystals can then be separated from the reaction mixture and, without removing all the water from the wet zeolite crystals, the zeolite can be converted into the ammonium form by ion exchange, and the crystals can be treated with a phosphorus compound. The phosphorus-treated, ammonium-exchanged zeolite can then be formed into a catalyst to be heated in one or more stages to remove the water and organic directing agent from the zeolite crystals and to convert the zeolite to the hydrogen form. | 04-18-2013 |
20130102824 | PHOSPHORUS MODIFIED ZEOLITE CATALYSTS - A bound phosphorus-modified catalyst composition comprises a zeolite having a silica to alumina molar ratio of at least 40, phosphorus in an amount between about 0.1 wt % and about 3 wt % of the total catalyst composition, and a binder essentially free of aluminum. The bound catalyst composition can advantageously exhibit at least one of: (a) microporous surface area of at least 340 m | 04-25-2013 |
20130102825 | PHOSPHORUS MODIFIED ZEOLITE CATALYSTS - The invention relates to a bound phosphorus-modified catalyst composition comprising a zeolite having a silica to alumina molar ratio of at least 40 and a binder having a surface area less than 200 m | 04-25-2013 |
20130123557 | PROCESS FOR PRODUCING PHOSPHORUS MODIFIED ZEOLITE CATALYSTS - In a process for producing a phosphorus-modified zeolite catalyst, zeolite crystals can be formed into a shaped catalyst body either in the absence of a separate inorganic oxide binder or in the presence of a separate inorganic oxide binder that is substantially free of aluminum. After converting the zeolite crystals to the hydrogen form and removing any organic directing agent employed in the synthesis of the zeolite crystals, the shaped catalyst body can be treated with an aqueous solution of a phosphorus compound, and the treated catalyst body can be heated to remove the water and to convert the phosphorus compound to an oxide form. | 05-16-2013 |
20130231511 | Methods of Regenerating Aromatization Catalysts - Methods for treating or rejuvenating a spent catalyst are disclosed. Such methods can employ a step of halogenating the spent catalyst, followed by decoking the halogenated spent catalyst. | 09-05-2013 |
20130231512 | Methods of Regenerating Aromatization Catalysts - Methods for treating or rejuvenating a spent catalyst are disclosed. Such methods can employ a step of halogenating the spent catalyst, followed by decoking the halogenated spent catalyst. The halogenation step can utilize fluorine and chlorine together, or fluorine and chlorine can be applied sequentially. | 09-05-2013 |
20160023914 | Molecular Sieve, COK-5, Its Synthesis and Use - A molecular sieve having the structure of COK-5 is produced using, as a structure directing agent, at least one diquaternary ammonium compound selected from the group consisting of 1,4-bis(N-propylpyrrolidinium)butane dications, 1,4-bis(N-butylpyrrolidinium)butane dications and 1,5-bis(N-propylpyrrolidinium)pentane dications. | 01-28-2016 |